/* ============================================================
   SHARED DESIGN SYSTEM — karan homayounfar
   Copy this file to both repos as shared.css
   ============================================================ */

/* ── GOOGLE FONTS (import in each HTML file separately) ─────
   @import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&family=Syne:wght@400;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');
*/

/* ── TOKENS ──────────────────────────────────────────────── */
:root {
  /* Dark (default) */
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #1c2128;
  --surface:   #262d36;
  --border:    rgba(255,255,255,0.08);
  --border2:   rgba(255,255,255,0.15);
  --text:      #e6edf3;
  --text2:     #8b949e;
  --text3:     #484f58;
  --accent:    #38bdf8;
  --accent2:   #0284c7;
  --teal:      #2dd4bf;
  --amber:     #fbbf24;
  --green:     #4ade80;
  --orange:    #f97316;
  --nav-bg:    rgba(13,17,23,0.92);

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;
}

/* ── LIGHT MODE ─────────────────────────────────────────── */
[data-theme="light"] {
  --bg:        #f0f6fc;
  --bg2:       #e6ecf2;
  --bg3:       #dae2ea;
  --surface:   #cdd5df;
  --border:    rgba(0,0,0,0.08);
  --border2:   rgba(0,0,0,0.14);
  --text:      #0d1117;
  --text2:     #2d3440;
  --text3:     #5a6370;
  --accent:    #0284c7;
  --accent2:   #0369a1;
  --teal:      #0d9488;
  --amber:     #d97706;
  --green:     #16a34a;
  --orange:    #ea580c;
  --nav-bg:    rgba(240,246,252,0.94);
}

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

/* ── THEME TOGGLE — always fixed bottom-left ────────────── */
.theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg2);
  border: 1px solid var(--border2);
  color: var(--text2);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
  transition: all 0.2s ease;
}
.theme-toggle:hover {
  background: var(--surface);
  color: var(--text);
  transform: scale(1.1);
}

/* ── NAV ────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 3rem;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text2);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(56,189,248,0.35);
  padding: 0.4rem 1.1rem;
  border-radius: 4px;
  transition: all 0.2s;
}
.nav-cta:hover {
  background: rgba(56,189,248,0.1);
  border-color: var(--accent);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 101;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
  border-radius: 2px;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
@media (max-width: 768px) {
  nav { padding: 1rem 1.25rem; }
  .nav-hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 240px;
    background: var(--bg2);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    border-left: 1px solid var(--border2);
    z-index: 99;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    font-size: 0.9rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.1em;
  }
  .nav-links li:last-child a { border-bottom: none; }
}

/* ── SECTION UTILITIES ──────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
}

section { position: relative; z-index: 1; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.5rem;
}

.section-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--accent2);
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--text2);
  border: 1px solid var(--border2);
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s;
  background: none;
  cursor: pointer;
}
.btn-secondary:hover { color: var(--text); border-color: var(--accent); }

/* ── CARDS ──────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--teal));
  opacity: 0;
  transition: opacity 0.25s;
}
.card:hover {
  border-color: var(--border2);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.card:hover::before { opacity: 1; }

/* ── TAGS / BADGES ──────────────────────────────────────── */
.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--text3);
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.badge-live  { color: var(--green);  background: rgba(74,222,128,0.08); border: 1px solid rgba(74,222,128,0.2); }
.badge-wip   { color: var(--amber);  background: rgba(251,191,36,0.08);  border: 1px solid rgba(251,191,36,0.2); }
.badge-done  { color: var(--accent); background: rgba(56,189,248,0.08); border: 1px solid rgba(56,189,248,0.2); }

/* ── FORMS ──────────────────────────────────────────────── */
.form-input, .form-textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.form-input:focus, .form-textarea:focus { border-color: var(--accent); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text3); }
.form-textarea { resize: vertical; min-height: 100px; }

/* ── TERMINAL — light mode fix ──────────────────────────── */
.terminal-body { padding: 1.5rem; font-family: var(--font-mono); font-size: 0.78rem; line-height: 2; }
.t-comment { color: var(--text3); }
.t-key     { color: var(--accent); }
.t-val     { color: var(--teal); }
.t-str     { color: var(--amber); }
.t-num     { color: #f97316; }

/* Light mode terminal overrides — fixes unreadable text */
[data-theme="light"] .t-comment { color: #5a6370; }
[data-theme="light"] .t-key     { color: #0284c7; }
[data-theme="light"] .t-val     { color: #0d7a70; }
[data-theme="light"] .t-str     { color: #b45309; }
[data-theme="light"] .t-num     { color: #c2410c; }
[data-theme="light"] .terminal-body { color: #0d1117; }

/* ── FOOTER ─────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-left {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
}
.footer-right {
  display: flex;
  gap: 1.5rem;
}
.footer-right a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-right a:hover { color: var(--text2); }

/* ── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border2); }

/* ============================================================
   MOBILE FIRST OVERRIDES — everything readable without zooming
   ============================================================ */

/* Base font size bigger on mobile */
@media (max-width: 768px) {
  body { font-size: 17px; }

  /* Nav */
  .nav-logo { font-size: 1.2rem; }

  /* Buttons -- bigger tap targets */
  .btn-primary, .btn-secondary {
    font-size: 0.95rem;
    padding: 0.9rem 1.8rem;
    min-height: 48px;
  }

  /* Section utilities */
  .section-eyebrow { font-size: 0.8rem; }
  .section-h2 { font-size: clamp(1.8rem, 6vw, 2.2rem); }

  /* Tags */
  .tag { font-size: 0.75rem; padding: 0.25rem 0.7rem; }

  /* Forms */
  .form-input, .form-textarea {
    font-size: 1rem;
    padding: 0.9rem 1rem;
    min-height: 48px;
  }
  .form-textarea { min-height: 110px; }

  /* Footer */
  .footer-left, .footer-right a { font-size: 0.82rem; }
  .footer-right { gap: 1.2rem; flex-wrap: wrap; }
}

/* Very small screens */
@media (max-width: 400px) {
  body { font-size: 16px; }
  .container { padding: 0 1rem; }
  .btn-primary, .btn-secondary {
    font-size: 0.88rem;
    padding: 0.85rem 1.4rem;
  }
}