/* ===================================================
   MILED ISSA — PORTFOLIO REDESIGN
   Premium dark-first, terminal-inspired aesthetic
   =================================================== */

/* ── 1. DESIGN TOKENS ── */
:root {
  color-scheme: dark;

  /* Palette */
  --bg: #07090d;
  --bg-alt: #0b1117;
  --surface: #0f151d;
  --surface-2: #141c26;
  --surface-3: #1a2330;
  --text: #e6edf4;
  --text-2: #c3ccd8;
  --muted: #8a97a8;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #d4a853;
  --accent-2: #e8c088;
  --accent-dim: rgba(212, 168, 83, 0.12);
  --accent-glow: rgba(212, 168, 83, 0.30);
  --icon-color: #ffffff;
  --icon-filter: brightness(0) invert(1);

  /* Shadows */
  --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 16px 40px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 30px 60px rgba(0, 0, 0, 0.5);

  /* Typography */
  --font-sans: "Sora", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --fs-hero: clamp(2.6rem, 4.8vw, 4rem);
  --fs-h1: clamp(2rem, 3.5vw, 3rem);
  --fs-h2: clamp(1.6rem, 2.4vw, 2.2rem);
  --fs-h3: clamp(1.05rem, 1.3vw, 1.25rem);
  --fs-body: clamp(0.98rem, 1.1vw, 1.05rem);
  --fs-small: 0.9rem;
  --fs-xs: 0.78rem;
  --lh-body: 1.7;
  --lh-heading: 1.15;

  /* Spacing scale */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;
  --sp-9: 5rem;
  --sp-10: 6rem;

  /* Radius */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 26px;
  --r-full: 999px;

  /* Layout */
  --nav-h: 76px;
  --max-w: 1160px;

  /* Transitions */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --t-fast: 150ms var(--ease);
  --t: 240ms var(--ease);
  --t-slow: 420ms var(--ease);
}

:root.light-theme {
  color-scheme: light;
  --bg: #f6f7fb;
  --bg-alt: #eef1f6;
  --surface: #ffffff;
  --surface-2: #f2f5f8;
  --surface-3: #e7ecf2;
  --text: #0b1220;
  --text-2: #2d3645;
  --muted: #576176;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.18);
  --accent: #996b2f;
  --accent-2: #7c5a2e;
  --accent-dim: rgba(153, 107, 47, 0.12);
  --accent-glow: rgba(153, 107, 47, 0.20);
  --icon-color: #0b1220;
  --icon-filter: brightness(0) invert(0);
  --shadow-sm: 0 6px 16px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 18px 40px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 30px 60px rgba(15, 23, 42, 0.14);
}

/* ── 2. RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 40px); /* Increased padding for better anchor positioning */
  overflow-x: hidden;
}

/* Ensure sections have proper spacing from navbar */
section[id] {
  scroll-margin-top: calc(var(--nav-h) + 40px);
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t), color var(--t);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  will-change: transform; /* Optimize for compositing */
}

/* Reduce grid complexity on mobile for performance */
@media (max-width: 480px) {
  body::before {
    background-size: 32px 32px;
    opacity: 0.2;
  }
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(700px 400px at 12% 10%, rgba(212, 168, 83, 0.07), transparent 60%),
    radial-gradient(600px 500px at 85% 20%, rgba(232, 192, 136, 0.06), transparent 55%);
  opacity: 0.7;
}

.light-theme body::before {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
  opacity: 0.35;
}

.light-theme body::after {
  background:
    radial-gradient(700px 400px at 12% 10%, rgba(153, 107, 47, 0.08), transparent 60%),
    radial-gradient(600px 500px at 85% 20%, rgba(124, 90, 46, 0.06), transparent 55%);
}

main, header, nav, footer { position: relative; z-index: 1; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; padding: 0; margin: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: var(--lh-heading);
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ── 3. UTILITIES ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-5);
}

.text-accent { color: var(--accent) !important; }
.text-muted-c { color: var(--muted) !important; }
.text-secondary { color: var(--text-2) !important; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-full);
  font-weight: 600;
  z-index: 9999;
  transform: translateY(-300%);
  transition: transform var(--t-fast);
}
.skip-link:focus { transform: translateY(0); }

/* ═══════════════════════════════════════════════
   4. NAVBAR
   ═══════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0;
  background: rgba(7, 9, 13, 0.78);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--t), border-color var(--t);
}
@supports (backdrop-filter: blur(16px)) {
  .navbar { backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); }
}
.light-theme .navbar { background: rgba(246, 247, 251, 0.85); }

.nav-shell {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  text-transform: lowercase;
  letter-spacing: 0.08em;
  color: var(--text) !important;
}

.brand-mark {
  padding: 6px 10px;
  border-radius: var(--r-sm);
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(212, 168, 83, 0.3);
}

.brand-text { color: var(--text-2); }

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.nav-link {
  position: relative;
  padding: 8px 12px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background-size var(--t-fast);
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0 2px;
  background-repeat: no-repeat;
  background-position: left calc(100% - 2px);
}

.nav-link::after {
  content: " />";
  margin-left: 6px;
  color: var(--muted);
  transition: color var(--t-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background-size: 100% 2px;
  font-weight: 600;
}

.nav-link:hover::after,
.nav-link.active::after { color: var(--accent); }

.nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  color: var(--text);
  background-color: rgba(212, 168, 83, 0.10);
}

/* Ensure active state is always visible */
.nav-link.active {
  position: relative;
}

.nav-link.active::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(212, 168, 83, 0.08);
  border-radius: var(--r-sm);
  z-index: -1;
}

.nav-link-cta {
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--r-full);
  padding: 8px 16px;
  font-weight: 600;
  letter-spacing: 0.1em;
  background: var(--accent-dim);
}
.nav-link-cta:hover {
  color: #1a1000;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.nav-link-cta::after { content: ""; }

.light-theme .nav-link-cta:hover {
  color: #f8fafc;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 1rem;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.theme-toggle-btn:hover {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.navbar-toggler {
  width: 42px;
  height: 42px;
  display: none;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface-2);
}

.navbar-toggler-icon {
  width: 20px;
  height: 20px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 6h16M4 12h16M4 18h16'/%3E%3C/svg%3E");
}
.light-theme .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b1220' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 6h16M4 12h16M4 18h16'/%3E%3C/svg%3E");
}

/* ═══════════════════════════════════════════════
   5. HERO
   ═══════════════════════════════════════════════ */
.hero {
  position: relative;
  padding: clamp(var(--sp-8), 10vw, var(--sp-10)) 0 var(--sp-9);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 400px at 10% 20%, rgba(212, 168, 83, 0.10), transparent 60%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--sp-7);
  align-items: start;
}

.hero-visual {
  grid-column: 1 / span 5;
  grid-row: 1;
  display: grid;
  gap: var(--sp-5);
  justify-items: center;
  align-self: start;
}
.hero-text {
  grid-column: 6 / span 7;
  grid-row: 1;
  align-self: start;
}

.hero-social {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.social-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border);
  transition: all var(--t-fast);
  font-size: 1.1rem;
}

.social-chip:hover {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.social-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--sp-5);
  align-items: center;
  min-height: 70vh;
}

.hero-text {
  grid-column: 1 / span 7;
  z-index: 2;
}

.hero-visual {
  grid-column: 8 / span 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
  z-index: 2;
}

.hero-kicker {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: var(--sp-3);
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: 700;
  margin-bottom: var(--sp-3);
  background: linear-gradient(135deg, var(--text) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: var(--fs-body);
  color: var(--text-2);
  max-width: 580px;
  margin-bottom: var(--sp-5);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.hero-meta {
  --meta-line-x: 10px;
  position: relative;
  display: grid;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
  padding-left: 0;
}

.meta-card {
  display: grid;
  grid-template-columns: 22px 22px 1fr;
  align-items: center;
  column-gap: var(--sp-2);
  color: var(--text-2);
  font-size: var(--fs-small);
}

.light-theme .meta-marker {
  box-shadow: 0 0 0 5px rgba(153, 107, 47, 0.12);
}

.hero-meta::before {
  content: "";
  position: absolute;
  left: var(--meta-line-x);
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: var(--r-full);
}

.meta-marker {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(212, 168, 83, 0.12);
  justify-self: center;
}

.meta-icon {
  width: 20px;
  display: inline-flex;
  justify-content: center;
  color: var(--icon-color);
  flex: 0 0 auto;
}

.meta-text {
  display: block;
  line-height: 1.5;
}

.hero-social {
  display: flex;
  gap: var(--sp-3);
}

.social-chip {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--icon-color);
  font-size: 1.05rem;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.social-chip:hover {
  background: var(--accent-dim);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.terminal-card {
  width: 100%;
  background: linear-gradient(135deg, rgba(20, 28, 38, 0.95), rgba(10, 14, 20, 0.95));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.light-theme .terminal-card {
  background: linear-gradient(135deg, #f8fafc, #eef2f7);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
}

.light-theme .terminal-header {
  background: rgba(255, 255, 255, 0.7);
}

.terminal-dots { display: flex; gap: 6px; }
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ff6b6b; }
.dot-yellow { background: #fbbf24; }
.dot-green { background: #22c55e; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.terminal-body {
  padding: var(--sp-4);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-2);
  display: grid;
  gap: var(--sp-2);
}

.terminal-line {
  display: flex;
  gap: var(--sp-2);
  align-items: center;
}

.terminal-prompt { color: var(--accent); }

.portrait-frame {
  --portrait-size: clamp(220px, 45vw, 260px);
  width: var(--portrait-size);
  height: var(--portrait-size);
  padding: 12px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  background: #0b1218;
  box-shadow:
    0 0 0 8px rgba(12, 18, 24, 0.9),
    0 0 0 16px rgba(212, 168, 83, 0.14),
    var(--shadow-md);
  display: grid;
  place-items: center;
  margin: 0 auto;
  flex: 0 0 auto;
}

.light-theme .portrait-frame {
  background: #eef2f7;
  box-shadow:
    0 0 0 8px rgba(15, 23, 42, 0.08),
    0 0 0 16px rgba(153, 107, 47, 0.10),
    var(--shadow-md);
}

.portrait-frame--mobile {
  display: none;
}

.portrait-core {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  display: block;
}

.profile-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: none;
  object-fit: cover;
  display: block;
}

.portrait-frame--desktop {
  width: var(--portrait-size);
  height: var(--portrait-size);
}

/* ═══════════════════════════════════════════════
   6. BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-weight: 600;
  font-size: var(--fs-small);
  border-radius: var(--r-md);
  padding: 10px 22px;
  transition: all var(--t-fast);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.4;
  min-height: 44px; /* Better touch targets */
  touch-action: manipulation; /* Prevent double-tap zoom */
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a1000;
  border: 1px solid transparent;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.light-theme .btn-primary {
  color: #f8fafc;
}

.btn-outline {
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
}
.btn-ghost:hover {
  background: var(--surface-3);
  border-color: var(--border-strong);
  color: var(--text);
  transform: translateY(-1px);
}

.btn-sm { 
  padding: 7px 16px; 
  font-size: var(--fs-xs); 
  min-height: 36px;
}
.btn-lg { 
  padding: 13px 28px; 
  font-size: var(--fs-body);
  min-height: 48px;
}
/* ═══════════════════════════════════════════════
   7. SECTIONS
   ═══════════════════════════════════════════════ */
.section {
  position: relative;
  z-index: 1;
  padding: var(--sp-10) 0;
}

.section + .section { border-top: 1px solid var(--border); }
.section-alt { background: var(--bg-alt); }

.section-header {
  display: grid;
  gap: var(--sp-2);
  margin-bottom: var(--sp-7);
  max-width: 720px;
  position: relative;
  padding-left: var(--sp-6);
}

.section-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: var(--r-full);
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: lowercase;
  letter-spacing: 0.16em;
  color: var(--text-2);
}

.section-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3rem;
  bottom: 0.3rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: var(--r-full);
}

.section-header::after {
  content: "";
  position: absolute;
  left: -4px;
  top: 0.3rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg);
}

.section-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--text);
}

.section-subtitle {
  font-size: var(--fs-body);
  color: var(--muted);
}

/* ═══════════════════════════════════════════════
   8. CARDS (base)
   ═══════════════════════════════════════════════ */
.edu-card,
.skills-panel,
.project-card,
.course-card {
  position: relative;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: var(--sp-6);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  box-shadow: var(--shadow-sm);
}

.edu-card:hover,
.skills-panel:hover,
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.card-title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin: 0 0 2px;
  color: var(--text);
}

.card-subtitle {
  font-size: var(--fs-small);
  color: var(--muted);
  margin: 0;
}

/* ═══════════════════════════════════════════════
   9. ABOUT
   ═══════════════════════════════════════════════ */
.about-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: auto auto auto;
  column-gap: var(--sp-7);
  row-gap: var(--sp-4);
  align-items: start;
}

.about-kicker {
  grid-column: 1 / -1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: lowercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin: 0;
}

.about-head {
  grid-column: span 7;
  grid-row: 2;
  display: grid;
  gap: var(--sp-2);
}

.about-body {
  grid-column: span 7;
  grid-row: 3;
}

.about-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.about-tagline {
  color: var(--muted);
  margin: 0;
}

.about-copy {
  display: grid;
  gap: var(--sp-3);
  color: var(--text-2);
  line-height: 1.75;
}

.about-copy p { margin: 0; }

.about-highlights {
  grid-column: span 5;
  grid-row: 2;
  margin: 0;
  padding: 0 0 0 var(--sp-6);
  border-left: 1px solid var(--border);
  display: grid;
  gap: var(--sp-3);
  align-self: start;
  margin-top: 0;
}

.highlight-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  column-gap: var(--sp-3);
  align-items: baseline;
  position: relative;
  padding: 0;
}

.highlight-row::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-6));
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 168, 83, 0.12);
}

.light-theme .highlight-row::before {
  box-shadow: 0 0 0 4px rgba(153, 107, 47, 0.12);
}

.about-highlights dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 0;
}

.about-highlights dd {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-small);
}

/* ═══════════════════════════════════════════════
   10. EDUCATION
   ═══════════════════════════════════════════════ */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
  max-width: 980px;
}

.edu-header {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
}

.edu-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--r-md);
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.mini-facts {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--sp-3);
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-2);
}
.mini-pill i { color: var(--icon-color); }

.single-card-center { max-width: 680px; margin: 0 auto; }

/* ═══════════════════════════════════════════════
   11. SKILLS
   ═══════════════════════════════════════════════ */
.skills-shell {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-6) var(--sp-8);
  --skills-marker-col: 20px;
  --skills-icon-col: 18px;
  --skills-col-gap: var(--sp-2);
  padding-left: 0;
}

.skills-shell::before {
  content: "";
  position: absolute;
  left: calc(var(--skills-marker-col) / 2);
  top: 0.2rem;
  bottom: 0.2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: var(--r-full);
}

.skills-category {
  display: grid;
  gap: var(--sp-3);
}

.skills-category-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  padding-left: calc(var(--skills-marker-col) + var(--skills-icon-col) + var(--skills-col-gap));
}

.skills-rows {
  display: grid;
  gap: var(--sp-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.skills-row {
  position: relative;
  font-size: var(--fs-small);
  color: var(--text-2);
  transition: color var(--t-fast);
  display: grid;
  grid-template-columns: var(--skills-marker-col) var(--skills-icon-col) 1fr;
  column-gap: var(--skills-col-gap);
  align-items: center;
}

.skills-row .skills-row-icon {
  width: var(--skills-icon-col);
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.skills-row::before {
  content: "";
  position: static;
  justify-self: center;
  align-self: center;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 168, 83, 0.12);
}

.skills-row:hover {
  color: var(--text);
}

.skills-row-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--skills-icon-col);
  color: var(--icon-color);
  justify-self: center;
}

.skills-icon-svg {
  width: 14px;
  height: 14px;
  display: block;
  filter: var(--icon-filter);
}

.light-theme .skills-row::before {
  box-shadow: 0 0 0 4px rgba(153, 107, 47, 0.12);
}
/* ═══════════════════════════════════════════════
   12. PROJECTS
   ═══════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-6);
}

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card--featured::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--sp-4);
  right: var(--sp-4);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.45;
  border-radius: 0 0 2px 2px;
}

.project-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
  flex-wrap: wrap;
}

.project-title {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.project-tagline {
  font-size: var(--fs-small);
  color: var(--muted);
  margin-bottom: var(--sp-3);
}

.project-tech-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: var(--sp-3);
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-2);
  white-space: nowrap;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.tech-badge:hover {
  background: var(--accent-dim);
  border-color: var(--border-strong);
}

.badge-icon-svg { filter: var(--icon-filter); width: 14px; height: 14px; }

.impact-list {
  padding-left: 1.1rem;
  margin: 0 0 var(--sp-3);
  list-style: disc;
  color: var(--muted);
  font-size: var(--fs-small);
}
.impact-list li { margin-bottom: var(--sp-1); line-height: 1.55; }
.impact-list li::marker { color: var(--accent); }

.project-actions {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--sp-4);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}
.status-badge--progress {
  background: var(--accent-dim);
  border: 1px solid rgba(212, 168, 83, 0.3);
  color: var(--accent);
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.fortytwo-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--sp-2);
}
.fortytwo-list li {
  padding: 4px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--muted);
  font-family: var(--font-mono);
}

.secondary-projects-section { margin-top: var(--sp-8); }

.secondary-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  width: 100%;
  padding: var(--sp-3) var(--sp-5);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface-2);
  color: var(--muted);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-small);
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}
.secondary-toggle:hover {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: var(--border-strong);
}
.secondary-toggle .toggle-icon { transition: transform var(--t); font-size: 0.75rem; }
.secondary-toggle[aria-expanded="true"] .toggle-icon { transform: rotate(180deg); }

.secondary-projects-grid {
  display: none;
  padding-top: var(--sp-5);
}
.secondary-projects-grid.is-open {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-4);
}

.project-card--secondary {
  padding: var(--sp-5);
  opacity: 0.85;
}
.project-card--secondary:hover { opacity: 1; }
.project-card--secondary .project-title { font-size: var(--fs-small); }

/* ═══════════════════════════════════════════════
   13. CONTACT
   ═══════════════════════════════════════════════ */
.contact-shell {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--sp-7);
  align-items: start;
}

.contact-intro {
  grid-column: span 5;
  display: grid;
  gap: var(--sp-3);
}

.contact-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: lowercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.contact-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

.contact-subtitle {
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}

.contact-list {
  grid-column: span 7;
  display: grid;
  gap: var(--sp-4);
  position: relative;
  --contact-dot: 6px;
  --contact-gutter: var(--sp-6);
  padding-left: var(--contact-gutter);
}

.contact-list::before {
  content: "";
  position: absolute;
  left: calc(var(--contact-dot) / 2);
  top: 0.2rem;
  bottom: 0.2rem;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: var(--r-full);
  opacity: 0.7;
}

.contact-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) 0;
  color: inherit;
  text-decoration: none;
  border: none;
  background: transparent;
  transition: color var(--t-fast);
  position: relative;
}

.contact-row::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--contact-gutter));
  top: 50%;
  transform: translateY(-50%);
  width: var(--contact-dot);
  height: var(--contact-dot);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.12);
}

.light-theme .contact-row::before {
  box-shadow: 0 0 0 3px rgba(153, 107, 47, 0.12);
}

.light-theme .contact-row-icon {
  border-color: rgba(153, 107, 47, 0.25);
}

.contact-row:hover {
  color: var(--text);
}

.contact-row:hover .contact-row-value,
.contact-row:focus-visible .contact-row-value {
  color: var(--accent);
}

.contact-row:hover .contact-row-action,
.contact-row:focus-visible .contact-row-action {
  color: var(--accent);
  transform: translateX(2px);
}

.contact-row:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
  border-radius: var(--r-sm);
}

.contact-row-icon {
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: transparent;
  color: var(--icon-color);
  border: 1px solid rgba(212, 168, 83, 0.25);
  flex: 0 0 auto;
  font-size: 0.9rem;
}

.contact-row-text {
  display: grid;
  gap: 0.2rem;
}

.contact-row-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.contact-row-value {
  color: var(--text);
  font-size: var(--fs-small);
  font-weight: 500;
  word-break: break-word;
}

.contact-row-action {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color var(--t-fast), transform var(--t-fast);
  flex: 0 0 auto;
}

/* ═══════════════════════════════════════════════
   14. FOOTER
   ═══════════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: var(--sp-7) 0;
  text-align: center;
  transition: background-color var(--t);
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: var(--sp-5);
  margin-bottom: var(--sp-4);
}

.social-icon {
  color: var(--icon-color);
  font-size: 1.35rem;
  transition: color var(--t-fast), transform var(--t-fast);
}
.social-icon:hover {
  transform: translateY(-2px);
}

footer p {
  font-size: var(--fs-xs);
  color: var(--muted);
}

/* ═══════════════════════════════════════════════
   15. BACK TO TOP
   ═══════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: var(--sp-5);
  right: var(--sp-5);
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.85rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--t-fast), transform var(--t-fast), color var(--t-fast), background var(--t-fast);
  z-index: 999;
}
.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}
.back-to-top:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ═══════════════════════════════════════════════
   16. RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 1200px) {
  .hero-grid { grid-template-columns: repeat(10, minmax(0, 1fr)); }
  .hero-visual { grid-column: 1 / span 4; }
  .hero-text { grid-column: 5 / span 6; }
}

@media (max-width: 991.98px) {
  :root { --nav-h: 68px; }

  .navbar-toggler { display: inline-grid; }

  .navbar-collapse {
    display: none;
  }

  .navbar-collapse.show,
  .navbar-collapse.collapsing {
    display: block;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: var(--sp-4) var(--sp-5);
    z-index: 999;
  }

  .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    padding: var(--sp-3) var(--sp-4);
  }

  .hero-grid { 
    grid-template-columns: 1fr;
    gap: var(--sp-6);
    min-height: auto;
  }
  .hero-text, .hero-visual {
    grid-column: span 1;
    grid-row: auto;
  }
  .hero-visual { 
    order: 2;
    gap: var(--sp-4);
  }

  .hero-text {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-kicker,
  .hero-title,
  .hero-lead {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .portrait-frame--desktop { display: none; }
  .portrait-frame--mobile {
    display: block;
    margin: var(--sp-4) auto;
    justify-self: center;
    align-self: center;
    order: 1;
    --portrait-size: clamp(180px, 40vw, 220px);
  }

  .about-layout { grid-template-columns: 1fr; }
  .about-kicker,
  .about-head,
  .about-body,
  .about-highlights {
    grid-column: span 1;
  }
  .about-kicker { grid-row: 1; }
  .about-head { grid-row: 2; }
  .about-body { grid-row: 3; }
  .about-highlights { grid-row: 4; }
  .about-highlights {
    padding-left: 0;
    border-left: none;
  }
  .highlight-row {
    grid-template-columns: 1fr;
    row-gap: 4px;
  }
  .skills-shell { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .secondary-projects-grid.is-open { grid-template-columns: repeat(2, 1fr); }
  .contact-shell { grid-template-columns: 1fr; }
  .contact-intro,
  .contact-list {
    grid-column: span 1;
  }
}

@media (min-width: 992px) {
  .navbar-collapse { display: flex !important; }
}

@media (min-width: 1024px) {
  .portrait-frame {
    --portrait-size: clamp(170px, 18vw, 200px);
  }
}

@media (max-width: 768px) {
  .section { padding: var(--sp-8) 0; }
  .hero { padding: var(--sp-8) 0 var(--sp-7); }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .edu-grid { 
    grid-template-columns: 1fr; 
    gap: var(--sp-6);
  }
  .skills-shell { grid-template-columns: 1fr; }
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
  .secondary-projects-grid.is-open { grid-template-columns: 1fr; }
  .section-header { padding-left: 0; }
  .section-header::before,
  .section-header::after {
    display: none;
  }
  .contact-list {
    --contact-gutter: var(--sp-4);
  }
  .hero-meta {
    padding-left: 0;
    gap: var(--sp-2);
  }
  /* Fix button consistency on mobile */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    min-height: 44px; /* Touch target minimum */
  }
  
  /* Improve link readability */
  .contact-row {
    min-height: 60px;
    padding: var(--sp-4);
  }
  
  .contact-row-value {
    word-break: break-all;
  }
}

@media (max-width: 560px) {
  .container { 
    padding: 0 var(--sp-4);
    max-width: 100%;
  }
  .hero-title { font-size: 2.2rem; }
  .hero-cta {
    width: 100%;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
    gap: var(--sp-2);
  }
  .hero-cta .btn { width: 100%; }
  .hero-meta {
    width: 100%;
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
    gap: var(--sp-2);
    --meta-line-x: 8px;
  }
  .hero-meta::before {
    top: 0.2rem;
    bottom: 0.2rem;
  }
  .meta-card {
    grid-template-columns: 18px 18px 1fr;
    column-gap: var(--sp-2);
  }
  .meta-marker {
    width: 7px;
    height: 7px;
  }
  .meta-icon {
    width: 18px;
  }
  .meta-text {
    line-height: 1.45;
    word-break: break-word;
  }
}

@media (max-width: 600px) {
  .about-highlights {
    --about-line-col: 18px;
    position: relative;
    padding-left: calc(var(--about-line-col) + var(--sp-3));
  }
  .about-highlights::before {
    content: "";
    position: absolute;
    left: calc(var(--about-line-col) / 2);
    top: 0.2rem;
    bottom: 0.2rem;
    width: 1px;
    background: linear-gradient(180deg, var(--accent), transparent);
    border-radius: var(--r-full);
  }
  .highlight-row {
    grid-template-columns: var(--about-line-col) 1fr;
    column-gap: var(--sp-3);
    row-gap: 4px;
    align-items: start;
    padding: var(--sp-2) 0;
  }
  .highlight-row::before {
    position: static;
    justify-self: center;
    align-self: center;
    width: 6px;
    height: 6px;
  }
  .about-highlights dt,
  .about-highlights dd {
    grid-column: 2;
  }
  .about-highlights dd {
    word-break: break-word;
  }
}

@media (max-width: 420px) {
  .container { padding: 0 var(--sp-3); }
  .nav-link { 
    font-size: 0.72rem; 
    min-height: 40px; /* Better touch target */
  }
  .btn-lg { 
    padding: 11px 20px; 
    font-size: var(--fs-small);
    min-height: 44px;
  }
  
  /* Prevent horizontal overflow on very small screens */
  .hero-title {
    word-break: break-word;
    hyphens: auto;
  }
  
  .project-title,
  .card-title {
    word-break: break-word;
    hyphens: auto;
  }
  
  /* Ensure navbar doesn't break on tiny screens */
  .navbar-nav {
    gap: var(--sp-1);
  }
}

/* ═══════════════════════════════════════════════
   17. 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;
  }
}

/* ═══════════════════════════════════════════════
   18. PRINT
   ═══════════════════════════════════════════════ */
@media print {
  .navbar, .back-to-top, .theme-toggle-btn, .navbar-toggler,
  .hero::before, body::before, body::after { display: none !important; }
  body { padding-top: 0; background: #fff; color: #000; }
  .section { padding: 1rem 0; break-inside: avoid; }
  .edu-card, .project-card, .skills-panel { box-shadow: none; border: 1px solid #ccc; }
}