/* =============================================================
   Mahmoud Abou-Zaeid — Personal Portfolio
   Design system: "Color Ballet" night-sky palette (near-black navy,
   royal blue, golden amber as a restrained accent, violet, teal-green).
   Typography: Source Serif 4 (display) + Inter (interface) +
   JetBrains Mono (code). Dark theme by default, accessible light theme.
   ============================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  color-scheme: dark;

  /* Night-sky surfaces (from "Color ballet.png") */
  --bg: #05070d;
  --bg-2: #090d17;
  --bg-3: #0d1424;
  --surface: #0e1526;
  --surface-raised: #16203a;
  --glass: rgba(13, 20, 36, 0.78);

  /* Text */
  --text: #eef2f9;
  --copy: #b0bccf;
  --muted: #7d8aa3;

  /* Brand accents */
  --primary: #3b6cff;
  --primary-deep: #1e46e0;
  --primary-soft: rgba(59, 108, 255, 0.14);
  --amber: #d99a06;
  --violet: #8a6bff;
  --green: #00c07a;

  /* Lines & shadows */
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(148, 172, 255, 0.45);
  --glow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --glow-accent: 0 24px 60px rgba(30, 70, 224, 0.26);

  /* Hero & Nav Scoped Tokens (Dark Theme Defaults) */
  --hero-bg-base: linear-gradient(180deg, #05070d 0%, #090d17 58%, #05070d 100%);
  --hero-glow-primary-bg: radial-gradient(circle at center, rgba(59, 108, 255, 0.40) 0%, rgba(138, 107, 255, 0.18) 40%, transparent 70%);
  --hero-glow-primary-opacity: 0.55;
  --hero-glow-secondary-bg: radial-gradient(circle at center, rgba(138, 107, 255, 0.42) 0%, rgba(59, 108, 255, 0.16) 44%, transparent 70%);
  --hero-glow-secondary-opacity: 0.38;
  --hero-grid-color: rgba(148, 172, 255, 0.35);
  --hero-grid-opacity: 0.14;

  --hero-status-bg: rgba(14, 21, 38, 0.78);
  --hero-status-border: rgba(255, 255, 255, 0.12);
  --hero-status-text: var(--copy);

  --hero-title-text: var(--text);
  --hero-title-sep: rgba(138, 107, 255, 0.88);
  --hero-desc-text: var(--copy);

  --hero-action-quiet-bg: rgba(22, 32, 58, 0.65);
  --hero-action-quiet-border: rgba(255, 255, 255, 0.12);
  --hero-action-quiet-text: var(--text);
  --hero-action-quiet-hover-bg: rgba(22, 32, 58, 0.95);
  --hero-action-quiet-hover-border: rgba(148, 172, 255, 0.45);

  --hero-portrait-border: rgba(148, 172, 255, 0.45);
  --hero-portrait-bg: #16203a;
  --hero-portrait-shadow: var(--glow), 0 0 0 1px rgba(59, 108, 255, 0.15), 0 24px 60px rgba(30, 70, 224, 0.22);
  --hero-portrait-overlay: linear-gradient(to top, rgba(5, 7, 13, 0.92) 0%, rgba(5, 7, 13, 0.35) 42%, transparent 68%);
  --hero-portrait-halo: radial-gradient(circle at 48% 38%, rgba(138, 107, 255, 0.38), transparent 64%), radial-gradient(circle at 55% 68%, rgba(59, 108, 255, 0.28), transparent 62%);
  --hero-portrait-halo-opacity: 0.9;

  --hero-proof-border: rgba(255, 255, 255, 0.10);
  --hero-proof-text: #b0bccf;
  --hero-proof-dot: #3b6cff;

  --nav-bg: rgba(13, 20, 36, 0.82);
  --nav-border: rgba(255, 255, 255, 0.12);
  --nav-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  --nav-scrolled-border: rgba(148, 172, 255, 0.45);

  /* Shape */
  --radius-sm: 0.7rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;

  /* Layout — full-width canvas */
  --content: 96rem;

  /* Type */
  --font-interface: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-display: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
}

body.light-theme {
  color-scheme: light;
  --bg: #f4f6fb;
  --bg-2: #eaeff8;
  --bg-3: #e1e7f4;
  --surface: #ffffff;
  --surface-raised: #f8fafc;
  --glass: rgba(255, 255, 255, 0.88);
  --text: #0b132b;
  --copy: #334155;
  --muted: #64748b;
  --primary: #1d4ed8;
  --primary-deep: #1e40af;
  --primary-soft: rgba(29, 78, 216, 0.08);
  --amber: #9a6a04;
  --violet: #6d28d9;
  --green: #059669;
  --line: rgba(15, 23, 42, 0.10);
  --line-strong: rgba(29, 78, 216, 0.35);
  --glow: 0 16px 45px rgba(15, 23, 42, 0.08);
  --glow-accent: 0 20px 50px rgba(29, 78, 216, 0.20);

  /* Hero & Nav Scoped Tokens (Light Theme Overrides) */
  --hero-bg-base: linear-gradient(180deg, #f4f6fb 0%, #ebf0f9 60%, #f4f6fb 100%);
  --hero-glow-primary-bg: radial-gradient(circle at center, rgba(37, 99, 235, 0.20) 0%, rgba(109, 40, 217, 0.10) 45%, transparent 70%);
  --hero-glow-primary-opacity: 0.85;
  --hero-glow-secondary-bg: radial-gradient(circle at center, rgba(109, 40, 217, 0.18) 0%, rgba(37, 99, 235, 0.08) 45%, transparent 70%);
  --hero-glow-secondary-opacity: 0.80;
  --hero-grid-color: rgba(29, 78, 216, 0.20);
  --hero-grid-opacity: 0.12;

  --hero-status-bg: #ffffff;
  --hero-status-border: rgba(29, 78, 216, 0.25);
  --hero-status-text: #1e293b;

  --hero-title-text: #0b132b;
  --hero-title-sep: #6d28d9;
  --hero-desc-text: #334155;

  --hero-action-quiet-bg: #ffffff;
  --hero-action-quiet-border: rgba(15, 23, 42, 0.15);
  --hero-action-quiet-text: #0b132b;
  --hero-action-quiet-hover-bg: #f8fafc;
  --hero-action-quiet-hover-border: rgba(29, 78, 216, 0.45);

  --hero-portrait-border: rgba(29, 78, 216, 0.32);
  --hero-portrait-bg: #ffffff;
  --hero-portrait-shadow: 0 20px 50px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(29, 78, 216, 0.18), 0 24px 60px rgba(29, 78, 216, 0.15);
  --hero-portrait-overlay: linear-gradient(to top, rgba(11, 19, 43, 0.90) 0%, rgba(11, 19, 43, 0.35) 42%, transparent 68%);
  --hero-portrait-halo: radial-gradient(circle at 48% 38%, rgba(109, 40, 217, 0.22), transparent 64%), radial-gradient(circle at 55% 68%, rgba(37, 99, 235, 0.18), transparent 62%);
  --hero-portrait-halo-opacity: 0.85;

  --hero-proof-border: rgba(15, 23, 42, 0.14);
  --hero-proof-text: #334155;
  --hero-proof-dot: #1d4ed8;

  --nav-bg: rgba(255, 255, 255, 0.90);
  --nav-border: rgba(15, 23, 42, 0.12);
  --nav-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  --nav-scrolled-border: rgba(29, 78, 216, 0.35);
}

/* ---------- 2. Base ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6.5rem;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  max-width: 100%;
  overflow-x: clip;
  font-family: var(--font-interface);
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(59, 108, 255, 0.12), transparent 34rem),
    radial-gradient(circle at 92% 22%, rgba(138, 107, 255, 0.08), transparent 36rem),
    linear-gradient(180deg, var(--bg), var(--bg-2) 58%, var(--bg));
  transition: background 0.3s ease, color 0.3s ease;
}

body, button, input, textarea, select { font-family: var(--font-interface); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--primary); }

h1, h2, h3, h4, h5 { font-family: var(--font-display); letter-spacing: -0.015em; }

::selection { background: rgba(59, 108, 255, 0.32); color: var(--text); }

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 0.35rem;
}

.section-shell { width: min(var(--content), calc(100% - 3rem)); margin-inline: auto; }
section { padding: clamp(3.5rem, 6.5vw, 5.5rem) 0; }

/* ---------- 3. Utilities ---------- */
.text-copy { color: var(--copy); }
.text-muted-soft { color: var(--muted); }

/* The restrained accent word in headings: violet, never warning-amber. */
.type-accent { color: var(--violet); font-style: italic; font-weight: 600; letter-spacing: -0.01em; }

.kicker {
  display: inline-block;
  margin-bottom: 0.7rem;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.btn-theme {
  min-height: 3.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.82rem 1.25rem;
  border-radius: 0.6rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn-primary-theme {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  box-shadow: 0 18px 45px rgba(30, 70, 224, 0.30);
}
.btn-primary-theme:hover { transform: translateY(-2px); box-shadow: var(--glow-accent); color: #ffffff; }

/* ---------- 4. Reveal-on-scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].reveal-in { opacity: 1; transform: none; }

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 6000;
  padding: 0.7rem 1.1rem;
  border-radius: 0.5rem;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
}
.skip-link:focus { top: 1rem; }

/* ---------- 6. Navigation ---------- */
.site-nav {
  position: fixed;
  z-index: 1000;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(var(--content), calc(100% - 2rem));
  border: 1px solid var(--nav-border);
  border-radius: 999px;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--nav-shadow);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-nav.scrolled { background: var(--nav-bg); border-color: var(--nav-scrolled-border); }

.navbar-brand {
  display: inline-flex;
  align-items: center;
  padding-block: 0.15rem;
  color: var(--text) !important;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.navbar-brand:hover { color: var(--primary) !important; }

.brand-mark {
  width: 2.35rem;
  height: 2.35rem;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  font-family: var(--font-interface);
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  box-shadow: 0 0 26px rgba(30, 70, 224, 0.35);
}

.nav-link {
  color: var(--copy);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: 0.4rem;
  transition: color 0.2s ease;
}
.nav-link:hover { color: color-mix(in srgb, var(--primary) 72%, var(--copy)); }
.nav-link.active {
  position: relative;
  color: var(--primary);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  right: 0.9rem;
  bottom: 0.18rem;
  left: 0.9rem;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

.navbar-toggler { border: 0; color: var(--text); font-size: 1.05rem; padding: 0.3rem 0.55rem; border-radius: 0.5rem; }
.navbar-toggler:hover { color: var(--primary); }
.navbar-toggler:focus { box-shadow: none; border: 1px solid var(--line-strong); }

.theme-toggle {
  width: 2.55rem;
  height: 2.55rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--primary);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  transition: transform 0.2s ease, color 0.2s ease;
}
.theme-toggle:hover { color: var(--violet); transform: rotate(-12deg); }

/* ---------- 7. Hero ---------- */
.editorial-hero {
  --hero-nav-clearance: 5.15rem; /* fixed nav clearance; content sits ~20–40px higher */
  --hero-inner-max: 97.5rem; /* ~1560px inner content, full-bleed section */
  position: relative;
  isolation: isolate;
  width: 100%;
  display: flex;
  align-items: center;
  margin: 0;
  padding: var(--hero-nav-clearance) 0 1.85rem;
  background: var(--hero-bg-base);
  overflow-x: clip;
  transition: background 0.3s ease;
}

@media (min-width: 992px) {
  .editorial-hero { min-height: 100svh; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 48px, var(--hero-inner-max));
  margin-inline: auto;
  display: grid;
  /* ~59% / 41% */
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 1fr);
  align-items: center;
  column-gap: clamp(1rem, 1.8vw, 1.75rem);
  row-gap: 1.5rem;
}

.hero-copy,
.hero-portrait {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.hero-copy {
  max-width: 56rem;
}

.hero-copy::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: min(22rem, 70%);
  height: min(12rem, 50%);
  top: 18%;
  left: -4%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 14%, transparent), transparent 72%);
  pointer-events: none;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0.42rem 0.8rem;
  border: 1px solid var(--hero-status-border);
  border-radius: 999px;
  background: var(--hero-status-bg);
  color: var(--hero-status-text);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.hero-status-dot {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0.28rem color-mix(in srgb, var(--green) 22%, transparent);
  flex: 0 0 auto;
}

.hero-eyebrow {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-copy h1 {
  max-width: min(16.5ch, 56rem);
  margin: 0.45rem 0 0.7rem;
  color: var(--hero-title-text);
  font-family: var(--font-display);
  font-size: clamp(3.05rem, 5.1vw, 5.75rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.03em;
  text-wrap: pretty;
  transition: color 0.3s ease;
}

/* Keep "Software Engineer |" together — avoid orphaned "Software" */
.hero-title-firstline {
  white-space: nowrap;
}

.hero-title-sep {
  margin-inline: 0.16em;
  color: var(--hero-title-sep);
  font-weight: 500;
  transition: color 0.3s ease;
}

.hero-title-tail {
  display: inline;
}

.hero-oracle-nowrap {
  white-space: nowrap;
}

.hero-description {
  max-width: 46rem;
  margin: 0;
  color: var(--hero-desc-text);
  font-size: clamp(1.05rem, 1.15vw, 1.2rem);
  line-height: 1.6;
  font-weight: 450;
  transition: color 0.3s ease;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.15rem;
}

.hero-actions .action {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.88rem 1.38rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  font-weight: 700;
  font-size: 0.94rem;
  transition:
    transform 0.3s ease-out,
    box-shadow 0.3s ease-out,
    border-color 0.3s ease-out,
    background 0.3s ease-out,
    color 0.3s ease-out;
}

.hero-actions .action:hover { transform: translateY(-2px); }

.hero-actions .action-solid {
  color: #ffffff;
  border-color: color-mix(in srgb, var(--primary) 70%, transparent);
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  box-shadow: 0 14px 34px color-mix(in srgb, var(--primary-deep) 34%, transparent);
}

.hero-actions .action-solid:hover {
  box-shadow: var(--glow-accent);
  border-color: var(--primary);
}

.hero-actions .action-quiet {
  color: var(--hero-action-quiet-text);
  border-color: var(--hero-action-quiet-border);
  background: var(--hero-action-quiet-bg);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

.hero-actions .action-quiet:hover {
  border-color: var(--hero-action-quiet-hover-border);
  background: var(--hero-action-quiet-hover-bg);
}

.hero-actions .action-link {
  color: var(--copy);
  border-color: transparent;
  padding-inline: 0.85rem;
}

.hero-actions .action-link:hover {
  color: var(--primary);
  border-color: var(--line);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.05rem;
  margin-top: 1.15rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--hero-proof-border);
  color: var(--hero-proof-text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-proof span::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--hero-proof-dot);
  opacity: 0.9;
  transition: background 0.3s ease;
}

/* ---------- 7b. Hero portrait ---------- */
.hero-portrait {
  width: min(100%, clamp(320px, 28vw, 450px));
  max-height: 570px;
  justify-self: start; /* pull toward content / center, not far right */
  margin-inline: 0;
}

.hero-portrait::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 6% -14% -8% -14%;
  border-radius: 50%;
  background: var(--hero-portrait-halo);
  opacity: var(--hero-portrait-halo-opacity);
  pointer-events: none;
  animation: heroPortraitHalo 20s ease-in-out infinite;
  will-change: transform, opacity;
  transition: opacity 0.3s ease;
}

.hero-photo-panel {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 5 / 6;
  border: 1px solid var(--hero-portrait-border);
  border-radius: var(--radius-lg);
  background: var(--hero-portrait-bg);
  box-shadow: var(--hero-portrait-shadow);
  transform: rotate(-0.4deg);
  transition: transform 0.4s ease-out, box-shadow 0.4s ease-out, border-color 0.3s ease, background 0.3s ease;
}

.hero-photo-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--hero-portrait-overlay);
  pointer-events: none;
}

.hero-photo-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease-out;
}

.hero-photo-panel:hover {
  transform: rotate(-0.4deg) translateY(-2px) scale(1.015);
  box-shadow:
    var(--glow),
    0 0 0 1px color-mix(in srgb, var(--primary) 22%, transparent),
    0 28px 70px color-mix(in srgb, var(--primary-deep) 22%, transparent);
}

.hero-photo-panel:hover img {
  transform: scale(1.02);
}

.hero-photo-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 1.35rem 1.25rem 1.15rem;
  color: #ffffff;
}

.hero-photo-caption::before {
  content: "";
  display: block;
  width: 2.2rem;
  height: 2px;
  margin-bottom: 0.65rem;
  background: var(--primary);
}

.hero-photo-caption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-photo-caption span {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
}

/* Compact desktop viewports: keep full hero in first screen */
@media (max-height: 860px) and (min-width: 992px) {
  .editorial-hero {
    --hero-nav-clearance: 4.85rem;
    padding-bottom: 1.25rem;
  }
  .hero-eyebrow { margin-top: 0.65rem; }
  .hero-copy h1 {
    margin: 0.35rem 0 0.55rem;
    font-size: clamp(2.7rem, 4vw, 4.2rem);
  }
  .hero-description { line-height: 1.55; font-size: 1.05rem; }
  .hero-actions { margin-top: 0.9rem; }
  .hero-proof { margin-top: 0.9rem; padding-top: 0.75rem; }
  .hero-portrait { width: min(100%, clamp(300px, 24vw, 380px)); }
}

@media (max-height: 740px) and (min-width: 992px) {
  .editorial-hero { --hero-nav-clearance: 4.65rem; padding-bottom: 1rem; }
  .hero-copy h1 { font-size: clamp(2.4rem, 3.4vw, 3.55rem); }
  .hero-portrait { width: min(100%, clamp(270px, 22vw, 340px)); }
  .hero-photo-caption { padding: 1.1rem 1.1rem 1rem; }
  .hero-photo-caption strong { font-size: 1.05rem; }
}

/* ---------- 7c. Hero ambient background ---------- */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg-glow {
  position: absolute;
  border-radius: 50%;
  will-change: transform, opacity;
  transition: opacity 0.3s ease;
}

.hero-bg-glow--primary {
  width: min(52rem, 78%);
  height: min(52rem, 78%);
  top: -32%;
  left: -22%;
  background: var(--hero-glow-primary-bg);
  opacity: var(--hero-glow-primary-opacity);
  animation: heroGlowPrimary 18s ease-in-out infinite;
}

.hero-bg-glow--secondary {
  width: min(44rem, 72%);
  height: min(44rem, 72%);
  right: -8%;
  top: 18%;
  bottom: auto;
  background: var(--hero-glow-secondary-bg);
  opacity: var(--hero-glow-secondary-opacity);
  animation: heroGlowSecondary 22s ease-in-out infinite;
}

.hero-bg-grid {
  position: absolute;
  inset: -8%;
  background-image:
    linear-gradient(var(--hero-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid-color) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: var(--hero-grid-opacity);
  mask-image: radial-gradient(ellipse 75% 65% at 48% 42%, #000 12%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 48% 42%, #000 12%, transparent 72%);
  animation: heroGridDrift 34s ease-in-out infinite;
  transition: opacity 0.3s ease;
}

@keyframes heroGlowPrimary {
  0% { transform: translate3d(-6%, -3%, 0) scale(1); }
  25% { transform: translate3d(3%, 4%, 0) scale(1.04); }
  50% { transform: translate3d(9%, -2%, 0) scale(1.07); }
  75% { transform: translate3d(2%, -5%, 0) scale(1.03); }
  100% { transform: translate3d(-6%, -3%, 0) scale(1); }
}

@keyframes heroGlowSecondary {
  0% { opacity: 0.30; transform: translate3d(5%, 3%, 0) scale(1); }
  50% { opacity: 0.5; transform: translate3d(-6%, -5%, 0) scale(1.06); }
  100% { opacity: 0.30; transform: translate3d(5%, 3%, 0) scale(1); }
}

@keyframes heroGridDrift {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(2.5%, -1.5%, 0); }
}

@keyframes heroPortraitHalo {
  0% { opacity: 0.78; transform: translate3d(-2%, 1%, 0) scale(1); }
  50% { opacity: 1; transform: translate3d(3%, -2%, 0) scale(1.06); }
  100% { opacity: 0.78; transform: translate3d(-2%, 1%, 0) scale(1); }
}

@media (max-width: 767.98px) {
  .hero-bg-glow--primary {
    opacity: 0.42;
    animation-duration: 24s;
  }
  .hero-bg-glow--secondary {
    opacity: 0.24;
    animation-duration: 28s;
  }
  .hero-bg-grid { opacity: 0.1; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg-glow--primary,
  .hero-bg-glow--secondary,
  .hero-bg-grid,
  .hero-portrait::before {
    animation: none;
  }
  .hero-photo-panel,
  .hero-photo-panel img,
  .hero-actions .action {
    transition: none;
  }
  .hero-photo-panel:hover,
  .hero-photo-panel:hover img,
  .hero-actions .action:hover {
    transform: none;
  }
}

/* Legacy aliases kept for any residual class usage */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--copy);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.eyebrow-dot { width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--primary); flex: 0 0 auto; }
.option-label {
  margin-top: 2.6rem;
  color: var(--copy);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.option-label strong { color: var(--text); font-weight: 500; }

/* ---------- 8. Tech marquee ---------- */
.tech-marquee {
  width: 100%;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.marquee-track { display: flex; width: max-content; animation: marquee 46s linear infinite; }
.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.95rem 1.35rem;
  color: var(--copy);
  font-weight: 600;
  white-space: nowrap;
  font-size: 0.92rem;
}
.marquee-track i { color: var(--primary); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 9. Sections, headings, cards ---------- */
.section-heading { max-width: 50rem; margin-bottom: 2.4rem; }
.section-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
}
.section-heading p { margin: 1rem 0 0; color: var(--copy); line-height: 1.8; max-width: 62ch; }

.theme-card {
  height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--bg-3) 92%, transparent));
  box-shadow: var(--glow);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  overflow: hidden;
}
.theme-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--glow-accent); }

.icon-box {
  width: 3.1rem;
  height: 3.1rem;
  display: grid;
  place-items: center;
  border-radius: 0.8rem;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--line));
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.42rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--copy);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- 10. Engineering impact ---------- */
.impact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.impact-card {
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.impact-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.impact-card b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--primary);
}
.impact-card span { display: block; margin-top: 0.55rem; color: var(--copy); font-weight: 600; font-size: 0.9rem; }
.impact-card--tone-violet b { color: var(--violet); }
.impact-card--tone-green b { color: var(--green); }
.impact-card--tone-blue b { color: var(--primary); }

.impact-note {
  display: flex;
  gap: 0.6rem;
  margin: 1.5rem 0 0;
  padding: 0.85rem 1rem;
  border-block: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}
.impact-note i { color: var(--primary); margin-top: 0.15rem; }

/* ---------- 11. Methodology (control room + pipeline) ---------- */
.control-room {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 82%, transparent), color-mix(in srgb, var(--bg-3) 94%, transparent));
  box-shadow: var(--glow);
}
.control-room::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(59, 108, 255, 0.16), transparent 26rem);
  opacity: 0.85;
  pointer-events: none;
}

.terminal-panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  overflow: hidden;
}
.code-titlebar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}
.code-dot { width: 0.65rem; height: 0.65rem; border-radius: 50%; background: #ff5f57; }
.code-dot:nth-child(2) { background: #ffbd2e; }
.code-dot:nth-child(3) { background: #28c840; }
.terminal-lines { padding: 1.1rem; display: grid; gap: 0.65rem; font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.6; color: var(--copy); }
.terminal-lines div { display: flex; gap: 0.6rem; align-items: flex-start; }
.prompt { color: var(--primary); }
.ok { color: var(--green); }

.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; position: relative; }
.flow-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.05rem;
  background: rgba(255, 255, 255, 0.03);
  min-height: 8.5rem;
  position: relative;
  overflow: hidden;
}
.flow-step::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  animation: scanLine 3.4s ease-in-out infinite;
}
.flow-step:nth-child(2)::after { animation-delay: 0.4s; }
.flow-step:nth-child(3)::after { animation-delay: 0.8s; }
.flow-step:nth-child(4)::after { animation-delay: 1.2s; }
@keyframes scanLine { 0%, 18% { transform: scaleX(0); } 55%, 100% { transform: scaleX(1); } }

.pipeline-card {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--surface-raised), var(--bg-3) 70%);
  box-shadow: var(--glow);
  padding: 1.1rem;
}
.pipeline-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding-bottom: 0.85rem;
  margin-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.pipeline-title { margin-left: auto; color: var(--muted); font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.16em; }

.pipeline-stages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
}
.pipeline-stage {
  flex: 1 1 0;
  min-width: 0;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.035);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.pipeline-stage:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.pipeline-stage:last-child { border-color: var(--line-strong); }
.pipeline-arrow {
  flex: 0 0 auto;
  align-self: center;
  color: var(--primary);
  font-size: 1.05rem;
}
.stage-num { color: var(--muted); font-family: var(--font-mono); font-size: 0.6rem; }
.stage-icon { color: var(--primary); font-size: 0.95rem; text-align: center; }
.stage-text strong { display: block; font-size: 0.82rem; color: var(--text); }
.stage-text small { display: block; margin-top: 0.1rem; color: var(--muted); font-size: 0.64rem; }

.pipeline-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.9rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  overflow-wrap: anywhere;
}

/* ---------- 12. Experience timeline ---------- */
.timeline { position: relative; display: grid; gap: 1.1rem; }
.timeline::before {
  content: "";
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  left: 1.35rem;
  width: 1px;
  background: linear-gradient(var(--primary), var(--violet));
  opacity: 0.55;
}
.timeline-item { position: relative; padding-left: 3.65rem; }
.timeline-dot {
  position: absolute;
  top: 1.1rem;
  left: 0.83rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 0.45rem rgba(59, 108, 255, 0.14);
}
.timeline .theme-card { padding: 1.4rem; border-left: 2px solid var(--primary); }
.timeline-item:nth-child(2) .theme-card { border-left-color: var(--violet); }

.bullet-list { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0.7rem; }
.bullet-list li { position: relative; padding-left: 1.35rem; color: var(--copy); line-height: 1.7; }
.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(59, 108, 255, 0.4);
}

/* ---------- 13. Projects ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }

.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.3rem, 2.2vw, 1.7rem);
  border-radius: var(--radius-md);
}
.project-card::before {
  content: "";
  width: 2.5rem;
  height: 0.2rem;
  margin-bottom: 1.2rem;
  background: linear-gradient(90deg, var(--primary), var(--violet));
  border-radius: 2px;
}

.project-status {
  align-self: flex-start;
  margin-bottom: 0.7rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--primary);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.project-status--tone-violet { color: var(--violet); border-color: color-mix(in srgb, var(--violet) 55%, var(--line)); }
.project-status--tone-green { color: var(--green); border-color: color-mix(in srgb, var(--green) 55%, var(--line)); }
.project-status--tone-blue { color: var(--primary); border-color: var(--line-strong); }
.project-title { margin: 0 0 1rem; font-size: clamp(1.15rem, 1.8vw, 1.4rem); line-height: 1.25; }
.project-copy { margin: 0 0 0.8rem; color: var(--copy); line-height: 1.7; }
.field-label { display: block; margin-bottom: 0.15rem; color: var(--muted); font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; }

.project-stack { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.6rem 0 1rem; }

.engineering-list { list-style: none; margin: 0 0 1rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.engineering-list li {
  padding: 0.35rem 0.6rem;
  border-radius: 0.5rem;
  border: 1px dashed var(--line);
  color: var(--copy);
  font-size: 0.76rem;
  font-weight: 600;
}

.project-result {
  margin: auto 0 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.7rem;
  border: 1px solid color-mix(in srgb, var(--green) 45%, var(--line));
  background: color-mix(in srgb, var(--green) 8%, transparent);
  color: var(--copy);
  font-size: 0.86rem;
  line-height: 1.6;
}
.project-result strong { color: var(--green); font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 0.2rem; }

.arch-details { margin: 0 0 1rem; border: 1px solid var(--line); border-radius: 0.7rem; background: rgba(255, 255, 255, 0.03); }
.arch-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem 0.85rem;
  cursor: pointer;
  color: var(--copy);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  list-style: none;
}
.arch-details summary::-webkit-details-marker { display: none; }
.arch-details summary i { color: var(--primary); transition: transform 0.2s ease; }
.arch-details[open] summary i { transform: rotate(180deg); }
.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  padding: 0 0.85rem 0.85rem;
}
.arch-node {
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--surface-raised);
  color: var(--copy);
  font-size: 0.74rem;
  font-weight: 600;
}
.arch-arrow { color: var(--primary); font-size: 0.7rem; }

.project-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1.2rem; margin-top: 0.4rem; }
.project-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.88rem;
}
.project-cta:hover { color: var(--primary-deep); }
.project-cta--ghost { color: var(--copy); }
.project-cta--ghost:hover { color: var(--primary); }
.project-nolink { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--muted); font-size: 0.78rem; font-weight: 600; }
.project-nolink i { color: var(--primary); }

.projects-note {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
  margin-top: 1.6rem;
  padding: 0.95rem 1.1rem;
  border-block: 1px solid var(--line);
  color: var(--copy);
  font-size: 0.92rem;
}
.projects-note > i { color: var(--primary); }
.projects-note a { margin-left: auto; color: var(--primary); font-weight: 700; }
.projects-note a:hover { color: var(--primary-deep); }

/* ---------- 14. Skills ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.skill-group {
  padding: 1.2rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.skill-group:hover { transform: translateY(-3px); border-color: var(--line-strong); background: color-mix(in srgb, var(--surface-raised) 90%, transparent); }
.skill-group-heading { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.9rem; }
.skill-icon {
  flex: 0 0 2.7rem;
  width: 2.7rem;
  height: 2.7rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: var(--primary);
  background: var(--primary-soft);
}
.skill-group-label { display: block; color: var(--text); font-weight: 700; }
.skill-group-heading p { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.82rem; }
.skill-list { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.skill-list span {
  padding: 0.42rem 0.65rem;
  border-radius: 0.55rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  color: var(--copy);
  font-size: 0.8rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

/* ---------- 15. Credentials & education ---------- */
.education-card, .certifications-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--bg-3) 92%, transparent));
  box-shadow: var(--glow);
}
.education-card { display: flex; flex-direction: column; padding: clamp(1.35rem, 3vw, 2rem); }
.certifications-panel { padding: clamp(1.35rem, 3vw, 2rem); }

.section-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
.status-chip, .certificate-count {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.68rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--copy);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.education-degree { margin: 0.6rem 0 1.3rem; color: var(--copy); font-family: var(--font-display); font-size: 1.05rem; line-height: 1.65; }
.education-meta { display: grid; gap: 0.65rem; margin-top: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--copy); font-size: 0.88rem; }
.education-meta span { display: flex; align-items: center; gap: 0.55rem; }
.education-meta i { width: 1rem; color: var(--primary); text-align: center; }
.education-focus { display: grid; gap: 0.25rem; margin-top: 1.3rem; padding: 0.9rem 1rem; border-left: 2px solid var(--primary); background: rgba(255, 255, 255, 0.035); }
.education-focus span { color: var(--muted); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.education-focus strong { color: var(--copy); font-size: 0.86rem; line-height: 1.55; font-weight: 600; }
.education-secondary { margin: 1.2rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.84rem; line-height: 1.6; }

/* ---------- 14c. Curriculum ---------- */
.curriculum { margin: 1.2rem 0 0; border: 1px solid var(--line); border-radius: 0.8rem; background: color-mix(in srgb, var(--surface) 90%, transparent); overflow: hidden; }
.curriculum-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.8rem 0.9rem;
  color: var(--copy);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.curriculum-list { list-style: none; margin: 0; padding: 0.2rem 0.9rem 0.9rem; display: grid; gap: 0.55rem; }
.curriculum-list li { display: grid; grid-template-columns: 4.5rem 1fr; gap: 0.5rem; padding-top: 0.6rem; border-top: 1px solid var(--line); }
.curriculum-list li:first-child { border-top: 0; }
.curriculum-list strong { color: var(--violet); font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; }
.curriculum-list span { color: var(--copy); font-size: 0.78rem; line-height: 1.6; }

.certificate-count { display: grid; gap: 0.05rem; min-width: 4.8rem; border-radius: 0.65rem; color: var(--text); font-size: 1.25rem; text-align: center; }
.certificate-count small { color: var(--muted); font-size: 0.58rem; letter-spacing: 0.08em; }

.certificate-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.certificate-item {
  display: grid;
  grid-template-columns: 2.6rem 1fr auto;
  gap: 0.85rem;
  align-items: center;
  min-width: 0;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.certificate-item:hover { transform: translateX(4px); border-color: var(--line-strong); }
.certificate-icon {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: var(--primary);
  font-size: 0.9rem;
  background: var(--primary-soft);
}
.certificate-item div { min-width: 0; }
.certificate-item strong, .certificate-item div > span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.certificate-item .certificate-hint { margin-top: 0.2rem; color: var(--muted); font-size: 0.68rem; opacity: 0.9; }
.certificate-item strong { color: var(--text); font-family: var(--font-display); font-size: 0.9rem; }
.certificate-item div > span { margin-top: 0.15rem; color: var(--muted); font-size: 0.72rem; }
.certificate-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 0.35rem; }
.certificate-year {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--copy);
  padding: 0.28rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
}
.certificate-verify { color: var(--primary); font-size: 0.85rem; }
.certificate-verify:hover { color: var(--primary-deep); }

.micro-credentials {
  margin: 1.2rem 0 0;
  padding: 0.9rem 1rem;
  border: 1px solid color-mix(in srgb, var(--violet) 45%, var(--line));
  border-radius: 0.7rem;
  background: color-mix(in srgb, var(--violet) 8%, transparent);
  color: var(--copy);
  font-size: 0.8rem;
  line-height: 1.65;
}
.micro-credentials i { color: var(--violet); margin-right: 0.4rem; }

/* ---------- 16. About ---------- */
.about-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}
.fact-row {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}
.fact-row span { display: block; margin-bottom: 0.3rem; color: var(--muted); font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.fact-row strong { display: block; color: var(--copy); font-size: 0.84rem; line-height: 1.5; }

/* ---------- 17. Contact ---------- */
.contact-card { border-color: var(--line-strong); }
.form-intro { margin-bottom: 1.4rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.form-kicker { display: block; margin-bottom: 0.4rem; color: var(--primary); font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; }
.form-intro p { max-width: 36rem; margin: 0; color: var(--copy); line-height: 1.65; }

.contact-form label { display: block; margin: 0 0 0.42rem; color: var(--copy); font-size: 0.76rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.contact-form .form-control {
  min-height: 3.1rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
}
.contact-form textarea.form-control { min-height: 8.5rem; resize: vertical; }
.contact-form .form-control::placeholder { color: var(--muted); }
.contact-form .form-control:focus {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 0.2rem rgba(59, 108, 255, 0.16);
}
body.light-theme .contact-form .form-control { background: rgba(16, 24, 40, 0.04); }
.contact-form button:disabled { cursor: wait; opacity: 0.7; }
.contact-form-status { min-height: 1.5rem; font-size: 0.9rem; color: var(--green); }

.contact-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.7rem; }
.contact-tile {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--copy);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.contact-tile:hover { transform: translateY(-2px); border-color: var(--line-strong); color: var(--primary); }
.contact-tile .icon-box { flex: 0 0 auto; }
.contact-tile strong { display: block; color: var(--text); font-family: var(--font-display); font-size: 0.82rem; }
.contact-tile span:last-child { font-size: 0.86rem; overflow-wrap: anywhere; }

/* ---------- 18. Footer ---------- */
.footer { margin: 0; padding: 0 0 2rem; color: var(--copy); }
.footer-top {
  margin: 2.5rem auto 0;
  width: min(var(--content), calc(100% - 3rem));
  padding: clamp(1.875rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: clamp(1.25rem, 4vw, 2rem);
  background: color-mix(in srgb, var(--bg-2) 82%, transparent);
  box-shadow: var(--glow);
}
.footer-layout { display: grid; grid-template-columns: minmax(16rem, 1.5fr) minmax(9rem, 0.65fr) minmax(9rem, 0.65fr) minmax(13rem, 0.9fr); gap: 1.5rem; }
.footer h4 { color: var(--text); font-size: 0.95rem; margin: 0 0 1rem; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.65rem; }
.footer ul a, .footer-contact a { color: var(--copy); text-decoration: none; }
.footer ul a:hover, .footer-contact a:hover { color: var(--primary); }
.footer .logo { display: inline-flex; align-items: center; gap: 0.65rem; color: var(--text); font-weight: 700; margin-bottom: 1rem; }
.footer-about p { line-height: 1.7; max-width: 30rem; }
.social-links { display: flex; gap: 0.65rem; flex-wrap: wrap; margin-top: 1rem; }
.social-links a {
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--copy);
}
.social-links a:hover { color: var(--primary); border-color: var(--line-strong); }
.footer-contact p { margin: 0 0 0.55rem; }

.copyright {
  width: min(var(--content), calc(100% - 3rem));
  min-height: 4rem;
  margin: 1.5rem auto 0;
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  text-align: center;
  font-size: 0.9rem;
}
.copyright a { display: inline-flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 0.3rem; color: inherit; text-decoration: none; }
.copyright a:hover { color: var(--primary); }
.copyright .sitename { color: var(--text); font-weight: 700; }

/* ---------- 19. Back to top & cursor ---------- */
.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 999;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  color: var(--primary);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.7rem);
  transition: 0.22s ease;
  backdrop-filter: blur(14px);
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

.cursor-aura {
  position: fixed;
  left: 0;
  top: 0;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  opacity: 0.10;
  transform: translate3d(-50%, -50%, 0);
  background: radial-gradient(circle, rgba(59, 108, 255, 0.16), rgba(138, 107, 255, 0.10) 40%, transparent 70%);
  filter: blur(10px);
  transition: opacity 0.25s ease;
}

/* ---------- 20. Responsive ---------- */
@media (max-width: 1199.98px) {
  .pipeline-stages { flex-wrap: wrap; }
  .pipeline-stage { flex: 1 1 calc(50% - 0.75rem); }
  .pipeline-arrow { display: none; }
}

@media (max-width: 991.98px) {
  .site-nav { top: 0.5rem; width: calc(100% - 1.5rem); border-radius: 1.1rem; }
  .navbar-collapse {
    margin-top: 0.75rem;
    padding: 0.85rem 0.4rem 0.5rem;
    border-top: 1px solid var(--line);
    border-radius: 0.9rem;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    box-shadow: var(--glow);
  }
  .navbar-nav { gap: 0.1rem; }
  .nav-item + .nav-item { margin-top: 0.15rem; }
  .nav-link {
    display: flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.7rem 0.85rem;
    font-size: 0.95rem;
  }
  .nav-link.active { color: var(--primary); background: var(--primary-soft); border-radius: 0.6rem; }
  .nav-link.active::after { display: none; }
  .theme-toggle { margin-top: 0.35rem; }
  .navbar-nav .btn-primary-theme { width: 100%; text-align: center; margin-top: 0.35rem; }
  .editorial-hero {
    --hero-nav-clearance: 5.5rem;
    min-height: auto;
    padding-bottom: 2.5rem;
    align-items: stretch;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 1.85rem;
    width: min(100% - 2rem, var(--hero-inner-max));
  }
  .hero-copy { max-width: none; order: 1; }
  .hero-portrait {
    order: 2;
    width: clamp(280px, 36vw, 360px);
    justify-self: center;
    margin-inline: auto;
  }
  .flow-grid, .impact-grid, .projects-grid, .skills-grid { grid-template-columns: 1fr 1fr; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .cursor-aura { display: none; }
  .footer-layout { grid-template-columns: 1fr 1fr; }
  .footer-about, .footer-contact { grid-column: 1 / -1; }
  .projects-note a { margin-left: 0; width: 100%; }
  .about-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 379.98px) {
  .navbar-brand { font-size: 0.92rem; }
}

@media (max-width: 767.98px) {
  .editorial-hero {
    --hero-nav-clearance: 5.25rem;
    min-height: auto;
    padding-bottom: 2.5rem;
    align-items: stretch;
  }
  .hero-inner {
    width: min(100% - 2rem, var(--hero-inner-max));
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .section-shell, .footer-top, .copyright { width: calc(100% - 2rem); }
  .hero-copy { max-width: none; order: 1; }
  .hero-copy h1 {
    max-width: 16ch;
    font-size: clamp(2.5rem, 10vw, 4rem);
  }
  .hero-proof {
    gap: 0.5rem 0.9rem;
  }
  .hero-portrait {
    order: 2;
    width: clamp(230px, 62vw, 280px);
    justify-self: center;
    margin-inline: auto;
  }
  .impact-grid, .projects-grid, .skills-grid { grid-template-columns: 1fr; }
  .pipeline-stage { flex: 1 1 100%; }
  .impact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-details { grid-template-columns: 1fr; }
  .skill-group:hover { transform: none; }
  .timeline::before { left: 0.8rem; }
  .timeline-item { padding-left: 2.35rem; }
  .timeline-dot { left: 0.28rem; }
  .footer-layout { grid-template-columns: 1fr; }
  .footer-about, .footer-contact { grid-column: auto; }
}

@media (max-width: 479.98px) {
  .editorial-hero {
    --hero-nav-clearance: 5rem;
    padding-bottom: 2rem;
  }
  .hero-inner { width: min(100% - 1.5rem, var(--hero-inner-max)); }
  .hero-portrait { width: clamp(220px, 64vw, 250px); }
  .hero-actions .action { width: auto; }
  .impact-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .footer-top, .copyright { border-radius: 1.1rem; }
  .certificate-item { grid-template-columns: 2.4rem 1fr; }
  .certificate-meta { grid-column: 1 / -1; flex-direction: row; justify-content: flex-end; }
}

/* ---------- 21. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ---------- Badges Section ---------- */
.badges-section { padding: 3rem 0; }
.badges-section .section-shell { max-width: var(--content); }
.badges-section .section-heading { margin-bottom: 1.5rem; }
.badges-section .section-heading p { font-size: 0.85rem; color: var(--muted); margin: 0; }
.badges-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 28px;
  align-items: flex-start;
}
.badge-item {
  width: 100px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.badge-item img {
  display: block;
  width: auto;
  height: 82px;
  max-width: 100px;
  object-fit: contain;
  margin: 0 auto 8px;
}
.badge-item span {
  font-size: 13px;
  line-height: 1.35;
  color: var(--copy);
}
.badge-item span:hover {
  color: var(--primary);
}
@media (max-width: 767.98px) {
  .badges-section .section-shell { padding: 0 1rem; }
  .badge-item { width: 82px; }
  .badge-item img { height: 68px; max-width: 82px; }
}

/* ---------- Badges Section ---------- */
.badges-section { padding: 6rem 0; }
.badges-section .section-shell { max-width: var(--content); }
.badges-section .section-heading { margin-bottom: 3rem; }
.badges-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.badge-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
  box-shadow: var(--glow);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.badge-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-accent);
}
.badge-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  padding: 2rem 1rem;
  background: var(--surface);
}
.badge-info {
  padding: 1rem;
  text-align: center;
}
.badge-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.badge-info p.issuer {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.badge-info .category-label {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}
.badge-card.Community .category-label { background: var(--primary); color: #fff; }
.badge-card.Achievement .category-label { background: var(--violet); color: #fff; }
.badge-card.Credential .category-label { background: var(--primary-deep); color: #fff; }
@media (max-width: 767.98px) {
  .badges-section .section-shell { padding: 0 1rem; }
  .badge-card { margin: 0; }
}

/* ---------- 22. Horizontal Carousel System ---------- */
.carousel-nav-arrows {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.carousel-arrow {
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface-raised) 90%, transparent);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.22s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  touch-action: manipulation;
}

.carousel-arrow:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 20px color-mix(in srgb, var(--primary) 40%, transparent);
  transform: translateY(-2px);
}

.carousel-arrow:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
  background: var(--surface);
  border-color: var(--line);
  color: var(--muted);
  box-shadow: none;
}

.carousel-viewport {
  position: relative;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-block: 0.5rem 1rem;
  margin-inline: 0;
  padding-inline: 0;
  border-radius: var(--radius-md);
  outline: none;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

.carousel-viewport::-webkit-scrollbar {
  display: none;
}

.carousel-track {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: 1.25rem;
  transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: scroll-position, transform;
}

.carousel-card {
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--bg-3) 92%, transparent));
  box-shadow: var(--glow);
  padding: 1.5rem;
  margin: 0;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.carousel-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--glow-accent);
}

/* Responsive card width rules */
@media (min-width: 1200px) {
  #projects-track .carousel-card {
    flex: 0 0 calc(42% - 0.75rem);
    max-width: calc(42% - 0.75rem);
  }
  #certs-track .carousel-card,
  #badges-track .carousel-card {
    flex: 0 0 calc(31% - 0.85rem);
    max-width: calc(31% - 0.85rem);
  }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
  .carousel-card {
    flex: 0 0 calc(48% - 0.65rem);
    max-width: calc(48% - 0.65rem);
  }
}

@media (max-width: 767.98px) {
  .carousel-track {
    gap: 1rem;
  }
  .carousel-card {
    flex: 0 0 calc(88% - 0.5rem);
    max-width: calc(88% - 0.5rem);
    padding: 1.25rem 1.1rem;
    margin: 0;
  }
}

@media (max-width: 479.98px) {
  .carousel-card {
    flex: 0 0 calc(88% - 0.4rem);
    max-width: calc(88% - 0.4rem);
    padding: 1.15rem 1rem;
  }
}

/* Project Card Specifics */
.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-icon-badge {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  border-radius: 0.6rem;
  background: color-mix(in srgb, var(--primary) 14%, transparent);
  color: var(--primary);
  font-size: 1.15rem;
}

.project-org {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.project-desc-block {
  margin-bottom: 1rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.project-copy {
  margin-bottom: 0.5rem;
  color: var(--copy);
}

.project-copy strong {
  color: var(--text);
}

.project-result-box {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
  background: color-mix(in srgb, var(--green) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 30%, transparent);
  color: var(--text);
  font-size: 0.85rem;
}

.project-result-box i {
  color: var(--green);
  margin-top: 0.2rem;
}

/* Certifications Card Specifics */
.cert-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cert-badge-frame {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 0.75rem;
  font-size: 1.35rem;
  background: color-mix(in srgb, var(--primary) 15%, transparent);
  color: var(--primary);
  border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
}

.cert-badge-tone-amber {
  background: color-mix(in srgb, var(--amber) 15%, transparent);
  color: var(--amber);
  border-color: color-mix(in srgb, var(--amber) 30%, transparent);
}

.cert-badge-tone-violet {
  background: color-mix(in srgb, var(--violet) 15%, transparent);
  color: var(--violet);
  border-color: color-mix(in srgb, var(--violet) 30%, transparent);
}

.cert-badge-tone-green {
  background: color-mix(in srgb, var(--green) 15%, transparent);
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 30%, transparent);
}

.cert-year-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  color: var(--copy);
}

.cert-issuer {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.cert-title {
  line-height: 1.35;
}

.cert-verify-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);

}

.cert-verify-link:hover {
  color: var(--text);
}

/* Skills Hierarchy */
.skill-pill {
  font-size: 0.86rem;
  transition: all 0.2s ease;
}

.skill-pill-primary {
  background: color-mix(in srgb, var(--primary) 18%, transparent);
  color: var(--text);
  border: 1px solid color-mix(in srgb, var(--primary) 45%, transparent);
  font-weight: 600;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 15%, transparent);
}

.skill-pill-secondary {
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  color: var(--copy);
  border: 1px solid var(--line);
  font-weight: 500;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
}

/* Active Nav State Matching Contact Button */
.site-nav .nav-link.active {
  color: var(--primary) !important;
  font-weight: 700;
}

.site-nav .nav-link.active::after {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep)) !important;
}

/* Community Badges Grid */
.community-badge-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: transform 0.2s ease;
}

.community-badge-item:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.micro-text {
  font-size: 0.72rem;
}

/* Certificate Reserved Image Area & Placeholder Styling */
.cert-card-image-area {
  position: relative;
  width: 100%;
  height: 165px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface-raised) 75%, transparent);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.5rem;
  transition: transform 0.3s ease;
}

.carousel-card:hover .cert-card-img {
  transform: scale(1.03);
}

.cert-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--bg-3) 70%, transparent);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.carousel-card:hover .cert-card-placeholder {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 6%, var(--bg-3));
}

.cert-card-placeholder i {
  font-size: 2.2rem;
  color: var(--primary);
  opacity: 0.85;
}

.cert-card-placeholder span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-weight: 500;
}

/* Certificate Interactive Modal Popup Styling */
.cert-card-interactive {
  cursor: pointer;
}

.cert-expand-overlay {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface-raised) 85%, transparent);
  border: 1px solid var(--line);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.22s ease;
}

.cert-card-interactive:hover .cert-expand-overlay {
  opacity: 1;
  transform: scale(1);
  background: var(--primary);
  color: #ffffff;
}

.cert-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(5, 7, 13, 0.88);
  backdrop-filter: blur(12px);
  display: grid;
  place-items: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.cert-modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.cert-modal-content {
  position: relative;
  width: min(900px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
  transform: scale(0.94) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.cert-modal-backdrop.show .cert-modal-content {
  transform: scale(1) translateY(0);
}

.cert-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface-raised);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.cert-modal-close:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.cert-modal-image-wrap {
  width: 100%;
  max-height: 520px;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cert-modal-img {
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  border-radius: 0.4rem;
}

.cert-modal-issuer {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---------- Community & Achievement Badge Image Normalization ---------- */
.badge-card-image-area {
  position: relative;
  width: 100%;
  height: 210px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface-raised) 75%, transparent);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1rem;
}

.badge-card-img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 145px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.carousel-card:hover .badge-card-img {
  transform: scale(1.03);
}

/* Visual Diameter Normalization for Circular Badges — Baseline equal to 'Oracle Certified User' */
.badge-card-img--round {
  width: 145px !important;
  height: 145px !important;
  max-width: 145px !important;
  max-height: 145px !important;
  object-fit: contain !important;
  aspect-ratio: 1 / 1;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.45));
}

.badge-card-img--square {
  width: 145px !important;
  height: 145px !important;
  max-width: 145px !important;
  max-height: 145px !important;
  object-fit: contain !important;
  aspect-ratio: 1 / 1;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.45));
}

.badge-card-img--banner {
  max-width: 95% !important;
  max-height: 135px !important;
  object-fit: contain !important;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.35));
}

@media (max-width: 767.98px) {
  .badge-card-image-area {
    height: 180px;
    padding: 0.6rem;
  }
  .badge-card-img {
    max-height: 125px;
  }
  .badge-card-img--round,
  .badge-card-img--square {
    width: 125px !important;
    height: 125px !important;
    max-width: 125px !important;
    max-height: 125px !important;
  }
  .badge-card-img--banner {
    max-height: 115px !important;
  }
}