/* ============================================================
   Eva's Skynet Salon — main.css
   State-of-the-art single-page, vanilla CSS, dark default.
   ============================================================ */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: color 320ms ease, background 320ms ease;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- Theme Tokens ---------- */
:root,
[data-theme="dark"] {
  --bg:           #0b0d12;
  --bg-2:         #0f1218;
  --ink:          #e6e8ee;
  --ink-2:        #aeb4c2;
  --ink-3:        #7c8290;
  --line:         rgba(255, 255, 255, 0.08);
  --line-2:       rgba(255, 255, 255, 0.14);
  --glass:        rgba(20, 22, 30, 0.55);
  --glass-strong: rgba(20, 22, 30, 0.78);
  --glass-border: rgba(255, 255, 255, 0.10);
  --accent-1:     #ff5ed4;   /* magenta */
  --accent-2:     #7b8cff;   /* indigo */
  --accent-3:     #00e0c6;   /* mint */
  --accent-grad:  linear-gradient(120deg, var(--accent-1) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  --shadow-1:     0 1px 0 rgba(255,255,255,.04) inset, 0 30px 60px -20px rgba(0,0,0,.6);
  --shadow-glow:  0 0 0 1px rgba(255,255,255,.04), 0 20px 60px -10px rgba(123,140,255,.25);
  --backdrop-1:   #0a0c11;
  --backdrop-2:   #1a0e2c;
  --backdrop-3:   #001f2a;
  --topbar-bg:    rgba(11, 13, 18, 0.55);
}

[data-theme="light"] {
  --bg:           #f6f5f1;
  --bg-2:         #ecebe5;
  --ink:          #181a20;
  --ink-2:        #4a4f5a;
  --ink-3:        #6a6f7a;
  --line:         rgba(0, 0, 0, 0.10);
  --line-2:       rgba(0, 0, 0, 0.18);
  --accent-1:     #b83a98;   /* darker magenta — keeps pop on cream */
  --accent-2:     #5360d6;   /* darker indigo — reads as a serious link, not glow */
  --accent-3:     #009486;   /* darker mint — present but never neon */
  --glass:        rgba(255, 255, 255, 0.78);
  --glass-strong: rgba(255, 255, 255, 0.92);
  --glass-border: rgba(0, 0, 0, 0.10);
  --shadow-1:     0 1px 0 rgba(255,255,255,.7) inset, 0 24px 50px -22px rgba(0,0,0,.22);
  --shadow-glow:  0 0 0 1px rgba(0,0,0,.05), 0 18px 48px -10px rgba(83,96,214,.22);
  --backdrop-1:   #f6f5f1;
  --backdrop-2:   #efe6d6;
  --backdrop-3:   #dde7e9;
  --topbar-bg:    rgba(246, 245, 241, 0.78);
}

[data-theme="light"] .backdrop-fade { opacity: 0.40; }
[data-theme="light"] .glass::before {
  background: linear-gradient(160deg, rgba(0,0,0,0.10), rgba(0,0,0,0) 30%, rgba(0,0,0,0) 70%, rgba(0,0,0,0.05));
}
[data-theme="light"] .glass:hover {
  box-shadow: var(--shadow-glow), 0 0 0 1px color-mix(in oklab, var(--accent-2), transparent 70%);
}
[data-theme="light"] .scroll-cue-line {
  background: linear-gradient(180deg, transparent, var(--ink-3), transparent);
}
[data-theme="light"] .code {
  background: #eeece4;
  border-color: var(--line-2);
}

/* ---------- WebGL Backdrop ---------- */
#webgl-backdrop {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(80% 60% at 20% 10%, color-mix(in oklab, var(--backdrop-2), transparent 60%) 0%, transparent 60%),
    radial-gradient(60% 50% at 90% 20%, color-mix(in oklab, var(--backdrop-3), transparent 70%) 0%, transparent 70%),
    radial-gradient(50% 40% at 50% 100%, color-mix(in oklab, var(--backdrop-1), transparent 50%) 0%, transparent 60%),
    var(--bg);
}

.backdrop-fade {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, transparent 70%, color-mix(in oklab, var(--bg), transparent 0%) 100%);
  opacity: 0.55;
}

/* ---------- Layout ---------- */
.container {
  width: min(1180px, 100% - 48px);
  margin-inline: auto;
}

.section {
  position: relative;
  padding: clamp(80px, 12vw, 160px) 0;
  isolation: isolate;
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 18px;
}

.section-title {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.section-sub {
  margin-top: 18px;
  color: var(--ink-2);
  font-size: 1.05rem;
  max-width: 640px;
}

/* ---------- Topbar ---------- */
.topbar {
  position: fixed;
  inset: 16px 16px auto 16px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 18px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--topbar-bg);
  backdrop-filter: saturate(150%) blur(18px);
  -webkit-backdrop-filter: saturate(150%) blur(18px);
  box-shadow: var(--shadow-1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand em {
  font-style: normal;
  background: var(--accent-grad);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--accent-grad);
  position: relative;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08) inset, 0 6px 18px -6px color-mix(in oklab, var(--accent-2), transparent 50%);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 999px;
  background: var(--bg);
}

.nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav a {
  position: relative;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink-2);
  transition: color 180ms ease, background 180ms ease;
}
.nav a:hover { color: var(--ink); background: color-mix(in oklab, var(--ink), transparent 92%); }
.nav a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  color: var(--ink);
  transition: background 180ms ease, transform 180ms ease;
}
.theme-toggle:hover { background: color-mix(in oklab, var(--ink), transparent 92%); }
.theme-toggle:active { transform: scale(0.95); }

[data-theme="dark"]  .theme-icon-sun  { display: none; }
[data-theme="light"] .theme-icon-moon { display: none; }

@media (max-width: 720px) {
  .nav { display: none; }
  .topbar { inset: 12px 12px auto 12px; padding: 8px 14px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin-inline: auto;
  text-align: left;
  padding: 0 24px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--ink-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-3);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent-3), transparent 75%);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.18); }
}

.display {
  margin-top: 28px;
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.grad-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.lede {
  margin-top: 24px;
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  color: var(--ink-2);
  max-width: 620px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
  white-space: nowrap;
}
.btn.primary {
  background: var(--ink);
  color: var(--bg);
}
.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px -8px color-mix(in oklab, var(--ink), transparent 60%);
}
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn.ghost:hover {
  background: color-mix(in oklab, var(--ink), transparent 92%);
}

.hero-meta {
  display: flex;
  gap: clamp(20px, 4vw, 40px);
  margin-top: 56px;
  flex-wrap: wrap;
  color: var(--ink-3);
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}
.hero-meta strong {
  color: var(--ink);
  font-weight: 500;
  margin-right: 4px;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  z-index: 1;
}
.scroll-cue-line {
  width: 1px;
  height: 28px;
  background: linear-gradient(180deg, transparent, var(--ink-2), transparent);
  animation: drop 2.4s ease-in-out infinite;
}
@keyframes drop {
  0%   { transform: translateY(-6px); opacity: 0.4; }
  50%  { transform: translateY(0);    opacity: 1; }
  100% { transform: translateY(6px);  opacity: 0.4; }
}

/* ---------- Glass Card ---------- */
.glass {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--shadow-1);
  transition: transform 360ms ease, box-shadow 360ms ease, border-color 360ms ease;
}
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(255,255,255,0.18), rgba(255,255,255,0) 30%, rgba(255,255,255,0) 70%, rgba(255,255,255,0.08));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.glass:hover {
  transform: translateY(-2px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-glow);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card-eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.card h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.card p { color: var(--ink-2); font-size: 0.98rem; }
.card-bullets {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--ink-2);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}
.card-bullets li {
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.card-bullets li::before {
  content: "›";
  color: var(--accent-2);
  font-weight: 600;
}

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.cap {
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cap-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, var(--ink), transparent 92%);
  color: var(--ink);
  margin-bottom: 6px;
}
.cap h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1.18rem;
  color: var(--ink);
}
.cap p { color: var(--ink-2); font-size: 0.95rem; }
.cap-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.cap-tags span {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
}

/* ---------- Workshop / Snippets ---------- */
.workshop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.snippet {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.snippet > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.snippet-tag {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.snippet-status {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.status-open  { color: #d8b34a; border-color: color-mix(in oklab, #d8b34a, transparent 60%); }
.status-done  { color: var(--accent-3); border-color: color-mix(in oklab, var(--accent-3), transparent 60%); }

.snippet h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1.18rem;
  color: var(--ink);
}
.snippet p { color: var(--ink-2); font-size: 0.95rem; }
.code {
  margin: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg), transparent 30%);
  border: 1px solid var(--line);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--ink);
  overflow-x: auto;
  white-space: pre;
}
.code code { color: inherit; }

/* ---------- Signal ---------- */
.signal-card {
  padding: clamp(36px, 5vw, 56px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  align-items: center;
}
.signal-card .section-title { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.signal-card .section-sub { margin-inline: auto; }
.signal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}
.signal-footnote {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 0.82rem;
}

/* ---------- Footer ---------- */
.footer {
  padding: 36px 0 56px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9rem;
}
.footer-meta {
  display: flex;
  gap: 10px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--ink-3);
}

/* ---------- Reveal Animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(.2, .8, .2, 1);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .kicker-dot, .scroll-cue-line { animation: none; }
}

/* ---------- Focus ring (universal) ---------- */
:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 6px;
}