/* ═══════════════════════════════════════════════════════════
   JARVIS STUDIO — style.css
   Claude UI Color Palette · Syne + DM Sans · Responsive Grid
   ═══════════════════════════════════════════════════════════ */

/* ─── TOKENS ─── */
:root {
  /* Claude's exact palette */
  --claude-orange:       #D97757;
  --claude-orange-light: #E8957A;
  --claude-orange-dark:  #C0614A;
  --claude-bg:           #FAF9F6;
  --claude-surface:      #F5F3EE;
  --claude-surface-2:    #EDEAE3;
  --claude-border:       #E2DDD6;
  --claude-border-dark:  #C9C3BA;
  --claude-text:         #1A1714;
  --claude-text-2:       #3D3731;
  --claude-text-muted:   #7A7168;
  --claude-white:        #FFFFFF;

  /* Mapped semantic vars */
  --bg:           var(--claude-bg);
  --surface:      var(--claude-surface);
  --surface-2:    var(--claude-surface-2);
  --border:       var(--claude-border);
  --text:         var(--claude-text);
  --text-2:       var(--claude-text-2);
  --text-muted:   var(--claude-text-muted);
  --accent:       var(--claude-orange);
  --accent-light: var(--claude-orange-light);
  --accent-dark:  var(--claude-orange-dark);

  /* Category tag colours */
  --tag-tool-bg:   rgba(217,119,87,0.12);
  --tag-tool-color:#C0614A;
  --tag-farm-bg:   rgba(74,148,82,0.12);
  --tag-farm-color:#2E7D36;
  --tag-edu-bg:    rgba(66,120,190,0.12);
  --tag-edu-color: #2558A8;
  --tag-fin-bg:    rgba(140,100,200,0.12);
  --tag-fin-color: #6B3FA8;

  /* Layout */
  --radius:     16px;
  --radius-sm:  8px;
  --radius-lg:  24px;
  --header-h:   68px;
  --max-w:      1280px;
  --gap:        20px;

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(26,23,20,0.06), 0 1px 2px rgba(26,23,20,0.04);
  --shadow-md:  0 4px 16px rgba(26,23,20,0.08), 0 1px 4px rgba(26,23,20,0.05);
  --shadow-lg:  0 12px 40px rgba(26,23,20,0.12), 0 4px 12px rgba(26,23,20,0.07);
  --shadow-card-hover: 0 20px 60px rgba(217,119,87,0.18), 0 4px 20px rgba(26,23,20,0.10);

  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ─── DARK THEME ─── */
[data-theme="dark"] {
  --bg:         #141210;
  --surface:    #1E1B18;
  --surface-2:  #272320;
  --border:     #353028;
  --text:       #F0EDE8;
  --text-2:     #C8C2B8;
  --text-muted: #7A7168;

  --tag-tool-bg:   rgba(217,119,87,0.18);
  --tag-tool-color:#E8957A;
  --tag-farm-bg:   rgba(74,148,82,0.18);
  --tag-farm-color:#5AB864;
  --tag-edu-bg:    rgba(66,120,190,0.18);
  --tag-edu-color: #6BA4E8;
  --tag-fin-bg:    rgba(140,100,200,0.18);
  --tag-fin-color: #A87AE0;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.45);
  --shadow-card-hover: 0 20px 60px rgba(217,119,87,0.25), 0 4px 20px rgba(0,0,0,0.30);
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
img { max-width: 100%; display: block; }

/* ─── AMBIENT BACKGROUND BLOBS ─── */
.bg-blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
  transition: opacity var(--transition);
}
.blob-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(217,119,87,0.22) 0%, transparent 70%);
  top: -200px; right: -150px;
  animation: blobDrift 18s ease-in-out infinite alternate;
}
.blob-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(74,148,82,0.12) 0%, transparent 70%);
  bottom: 200px; left: -200px;
  animation: blobDrift 22s ease-in-out infinite alternate-reverse;
}
.blob-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(66,120,190,0.10) 0%, transparent 70%);
  top: 50%; left: 40%;
  animation: blobDrift 26s ease-in-out infinite alternate;
}
[data-theme="dark"] .bg-blob { opacity: 0.25; }

@keyframes blobDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.05); }
}

/* ─── HEADER ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,249,246,0.82);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
[data-theme="dark"] .site-header {
  background: rgba(20,18,16,0.85);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition);
}
.brand-mark:hover { transform: rotate(-6deg) scale(1.08); }
.brand-mark.small svg { width: 20px; height: 20px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.02em;
}
.brand-sub {
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

/* Nav */
.top-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}
.filter-btn {
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.filter-btn:hover {
  color: var(--text);
  background: var(--surface-2);
  border-color: var(--border);
}
.filter-btn.active {
  color: var(--claude-white);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(217,119,87,0.35);
}

/* Header right */
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.project-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  background: var(--surface-2);
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
#visible-count { font-weight: 700; color: var(--accent); }

.theme-toggle {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}
.theme-toggle:hover {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-dark);
  transform: rotate(20deg);
}
.sun-icon { display: block; }
.moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

/* ─── HERO ─── */
.hero {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 72px 24px 52px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 6px 14px 6px 10px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeUp 0.6s ease both;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%,100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 20px;
  animation: fadeUp 0.6s 0.1s ease both;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}
.hero-title .highlight {
  position: relative;
  display: inline-block;
}
.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0; right: 0;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.35;
}

.hero-desc {
  max-width: 580px;
  margin: 0 auto 36px;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  animation: fadeUp 0.6s 0.3s ease both;
  box-shadow: var(--shadow-sm);
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0 20px;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

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

/* ─── PROJECTS SECTION ─── */
.projects-section {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ─── GRID ─── */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

/* Featured card spans 2 cols */
.card--featured {
  grid-column: span 2;
}

/* ─── CARD ─── */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
  cursor: default;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition),
    background var(--transition);
  animation: cardReveal 0.5s ease both;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(217,119,87,0.35);
}

/* Staggered reveal */
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.10s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.20s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.30s; }
.card:nth-child(7) { animation-delay: 0.35s; }

@keyframes cardReveal {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Glow effect on hover */
.card-glow {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(400px circle at var(--mouse-x,50%) var(--mouse-y,50%), rgba(217,119,87,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.card:hover .card-glow { opacity: 1; }

/* Shine sweep */
.card-shine {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.06) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.55s ease;
  pointer-events: none;
}
.card:hover .card-shine { transform: translateX(100%); }

/* Featured card accent strip */
.card--featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--claude-orange-light) 100%);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Farm card */
.card--farm::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #4A9452 0%, #76C47E 100%);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Card top row */
.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.card-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.card:hover .card-icon { transform: scale(1.08) rotate(-4deg); }
.card-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Tags */
.tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 100px;
}
.tag--tool    { background: var(--tag-tool-bg); color: var(--tag-tool-color); }
.tag--farm    { background: var(--tag-farm-bg); color: var(--tag-farm-color); }
.tag--edu     { background: var(--tag-edu-bg);  color: var(--tag-edu-color); }
.tag--fin     { background: var(--tag-fin-bg);  color: var(--tag-fin-color); }
.tag--featured {
  background: rgba(217,119,87,0.15);
  color: var(--accent);
  border: 1px solid rgba(217,119,87,0.3);
}

/* Card body */
.card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.025em;
  line-height: 1.2;
}
.card--featured .card-title { font-size: 1.6rem; }

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  font-weight: 300;
  flex: 1;
}

/* Tech pills */
.card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tech-pill {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 100px;
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.card:hover .tech-pill {
  border-color: rgba(217,119,87,0.25);
  color: var(--text-2);
}

/* Card footer */
.card-footer {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 100px;
  background: rgba(217,119,87,0.08);
  border: 1px solid rgba(217,119,87,0.2);
  transition: all var(--transition);
}
.card-link:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  transform: translateX(2px);
  box-shadow: 0 4px 16px rgba(217,119,87,0.35);
}
.card-link svg {
  transition: transform var(--transition);
}
.card-link:hover svg { transform: translate(2px, -2px); }

/* ─── EMPTY STATE ─── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.empty-state p { font-size: 0.9rem; }

/* ─── FOOTER ─── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}
.footer-role {
  font-size: 0.72rem;
  color: var(--text-muted);
}
.footer-location {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ─── HIDDEN (filter) ─── */
.card.hidden {
  display: none;
}

/* ══════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ══════════════════════════════════════════ */

/* Tablet landscape / small desktop */
@media (max-width: 1024px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card--featured {
    grid-column: span 2;
  }
}

/* Tablet portrait */
@media (max-width: 768px) {
  :root { --header-h: 60px; }

  .header-inner { gap: 12px; }
  .top-nav { gap: 2px; }
  .filter-btn { padding: 5px 10px; font-size: 0.75rem; }
  .brand-sub { display: none; }
  .project-count { display: none; }

  .hero { padding: 52px 20px 40px; }
  .hero-stats { flex-wrap: wrap; gap: 4px; justify-content: center; }
  .stat { padding: 0 14px; }
  .stat-divider { height: 28px; }

  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .card--featured {
    grid-column: span 2;
  }
  .card--featured .card-title { font-size: 1.3rem; }
  .projects-section { padding: 0 20px 60px; }
}

/* Mobile large */
@media (max-width: 580px) {
  .header-inner { padding: 0 16px; }
  .top-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 200;
    background: rgba(250,249,246,0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    padding: 10px 12px 16px;
    justify-content: center;
    gap: 6px;
    margin: 0;
  }
  [data-theme="dark"] .top-nav {
    background: rgba(20,18,16,0.96);
  }
  .filter-btn { padding: 7px 14px; font-size: 0.8rem; flex: 1; text-align: center; max-width: 90px; }

  .hero { padding: 40px 16px 32px; }
  .hero-title { font-size: clamp(1.8rem, 8vw, 2.6rem); }
  .hero-stats { padding: 12px 16px; }
  .stat-num { font-size: 1.2rem; }

  .grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .card--featured { grid-column: span 1; }
  .card { padding: 22px; }
  .projects-section { padding: 0 16px 100px; }
  body { padding-bottom: 0; }
}

/* Mobile small */
@media (max-width: 380px) {
  .hero-title { font-size: 1.7rem; }
  .filter-btn { padding: 6px 8px; font-size: 0.72rem; }
  .card { padding: 18px; }
  .card-title { font-size: 1.1rem; }
  .card--featured .card-title { font-size: 1.1rem; }
}

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

/* ─── SELECTION ─── */
::selection {
  background: rgba(217,119,87,0.25);
  color: var(--text);
}