/* ============ EDU3D — DESIGN SYSTEM ============ */
:root {
  --ink: #0A0A0F;
  --ink-2: #14141C;
  --ink-3: #1E1E2A;
  --paper: #F5F1EA;
  --paper-dim: #D8D2C5;
  --line: rgba(245, 241, 234, 0.12);
  --line-strong: rgba(245, 241, 234, 0.28);

  --purple: #6B2BD9;
  --purple-deep: #3D1480;
  --blue: #1E5BFF;
  --magenta: #FF2E93;
  --orange: #FF5722;
  --red: #E11D2C;
  --cyan: #00E5FF;
  --yellow: #FFE600;

  --grad-hero: linear-gradient(135deg, #6B2BD9 0%, #1E5BFF 55%, #00E5FF 100%);
  --grad-warm: linear-gradient(135deg, #FF2E93 0%, #FF5722 60%, #E11D2C 100%);
  --grad-cool: linear-gradient(180deg, #6B2BD9 0%, #14141C 100%);
  --grad-mag-purple: linear-gradient(135deg, #FF2E93 0%, #6B2BD9 100%);

  --font-display: "Anton", "Bebas Neue", Impact, sans-serif;
  --font-body: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --pad-x: clamp(20px, 4vw, 64px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--magenta); color: var(--paper); }

img { max-width: 100%; display: block; }

/* ============ TYPOGRAPHY ============ */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.85;
  letter-spacing: -0.01em;
}

.huge {
  font-size: clamp(64px, 14vw, 240px);
}
.big {
  font-size: clamp(48px, 9vw, 144px);
}
.med {
  font-size: clamp(40px, 6vw, 96px);
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.mono-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--pad-x);
  background: linear-gradient(180deg, rgba(10,10,15,0.7) 0%, rgba(10,10,15,0) 100%);
  backdrop-filter: blur(0px);
  transition: backdrop-filter 0.3s, background 0.3s;
}
.nav.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .dot {
  width: 8px; height: 8px;
  background: var(--magenta);
  border-radius: 50%;
  display: inline-block;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.nav-links a:hover { opacity: 1; }
@media (max-width: 720px) {
  .nav-links a:not(.lang-toggle) { display: none; }
}
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}
.lang-toggle button {
  background: transparent;
  color: var(--paper);
  border: 0;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  opacity: 0.55;
  transition: all 0.2s;
}
.lang-toggle button.active {
  background: var(--paper);
  color: var(--ink);
  opacity: 1;
}

/* ============ SECTION SHELL ============ */
section {
  position: relative;
  padding: clamp(80px, 12vh, 160px) var(--pad-x);
  overflow: hidden;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}
.section-tag .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--paper-dim);
}
.section-tag .bar {
  width: 28px;
  height: 1px;
  background: var(--paper-dim);
}
.section-tag .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: 100px;
  padding-bottom: 60px;
  background: var(--ink);
  position: relative;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 20%, rgba(107,43,217,0.55) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 10% 90%, rgba(255,46,147,0.35) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(30,91,255,0.25) 0%, transparent 70%),
    var(--ink);
  z-index: 0;
}
.hero-grain {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 3px);
  pointer-events: none;
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.hero-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}
.hero-meta-left { max-width: 320px; }
.hero-meta-right {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(80px, 18vw, 280px);
  line-height: 0.82;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.hero h1 .grad {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero h1 .outline {
  -webkit-text-stroke: 2px var(--paper);
  color: transparent;
}
.hero-sub {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.4vw, 20px);
  max-width: 520px;
  color: var(--paper);
  opacity: 0.85;
}
.hero-stamp {
  position: absolute;
  top: 120px;
  right: var(--pad-x);
  z-index: 2;
  width: clamp(120px, 18vw, 220px);
  height: clamp(120px, 18vw, 220px);
  border-radius: 50%;
  background: var(--grad-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 600;
  text-align: center;
  padding: 16px;
  animation: spin 30s linear infinite;
}
.hero-stamp::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed rgba(10,10,15,0.4);
  border-radius: 50%;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.hero-stamp .stamp-num {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}
.hero-marquee {
  position: relative;
  z-index: 3;
  margin-top: 48px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  white-space: nowrap;
}
.hero-marquee-track {
  display: inline-flex;
  gap: 48px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 48px);
  text-transform: uppercase;
  animation: marquee 40s linear infinite;
  padding-left: 48px;
}
.hero-marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 48px;
}
.hero-marquee-track .star {
  color: var(--magenta);
  font-size: 0.6em;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ============ MANIFESTO ============ */
.manifesto {
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .manifesto-grid { grid-template-columns: 1fr; gap: 32px; }
}
.manifesto-headline {
  font-family: var(--font-display);
  font-size: clamp(44px, 6vw, 96px);
  line-height: 0.9;
  text-transform: uppercase;
}
.manifesto-headline .grad-warm {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.manifesto-body p {
  font-size: clamp(18px, 1.6vw, 24px);
  line-height: 1.45;
  margin-bottom: 18px;
  color: var(--paper);
  text-wrap: pretty;
}
.manifesto-body p.lead {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1.05;
  text-transform: uppercase;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}
.manifesto-body p.dim { color: var(--paper-dim); }
.manifesto-rule {
  height: 1px;
  background: var(--line);
  margin: 36px 0 24px;
}

/* ============ VALUES ============ */
.values {
  background: var(--ink);
  padding: 0;
}
.value-row {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 80px var(--pad-x);
  overflow: hidden;
  border-top: 1px solid var(--line);
}
.value-row .value-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.85;
}
.value-row.v1 .value-bg {
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(107,43,217,0.6) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(30,91,255,0.4) 0%, transparent 70%);
}
.value-row.v2 .value-bg {
  background:
    radial-gradient(ellipse 60% 80% at 20% 50%, rgba(255,46,147,0.55) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 90% 30%, rgba(255,87,34,0.35) 0%, transparent 70%);
}
.value-row.v3 .value-bg {
  background:
    radial-gradient(ellipse 60% 80% at 70% 30%, rgba(0,229,255,0.35) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 30% 70%, rgba(255,230,0,0.18) 0%, transparent 70%);
}
.value-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  width: 100%;
  align-items: center;
}
@media (max-width: 900px) {
  .value-inner { grid-template-columns: 1fr; gap: 32px; }
}
.value-text .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--paper-dim);
  margin-bottom: 16px;
  display: block;
}
.value-text h2 {
  font-family: var(--font-display);
  font-size: clamp(72px, 12vw, 200px);
  line-height: 0.85;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.value-text p {
  font-size: clamp(18px, 1.4vw, 22px);
  max-width: 380px;
  color: var(--paper);
  opacity: 0.9;
}
.value-visual {
  aspect-ratio: 4/5;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

/* ============ PLACEHOLDER VISUAL ============ */
.ph {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.ph::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(245,241,234,0.04) 0 2px,
    transparent 2px 14px
  );
}
.ph::after {
  content: "";
  position: absolute;
  top: 16px; right: 16px;
  width: 8px; height: 8px;
  background: var(--magenta);
  border-radius: 50%;
}
.ph .ph-corner {
  position: absolute;
  top: 16px; left: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--paper-dim);
  letter-spacing: 0.18em;
}
.ph .ph-label {
  position: relative;
  z-index: 2;
}
.ph.tinted-purple { background: linear-gradient(135deg, #2A0F5F, #14141C); }
.ph.tinted-blue { background: linear-gradient(135deg, #0F1F5F, #14141C); }
.ph.tinted-magenta { background: linear-gradient(135deg, #5F0F3F, #14141C); }
.ph.tinted-orange { background: linear-gradient(135deg, #5F2F0F, #14141C); }
.ph.tinted-cyan { background: linear-gradient(135deg, #0F4F5F, #14141C); }

/* ============ TRANSFORMATION ============ */
.transformation {
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.transformation-headline {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 128px);
  line-height: 0.88;
  text-transform: uppercase;
  margin-bottom: 56px;
  max-width: 1200px;
  letter-spacing: -0.01em;
}
.transformation-headline .grad-cool {
  background: linear-gradient(135deg, #1E5BFF 0%, #00E5FF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tx-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .tx-grid { grid-template-columns: 1fr; }
}
.tx-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tx-step-tag {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.tx-step-tag .num {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--paper);
  line-height: 1;
}
.tx-step-visual {
  aspect-ratio: 4/5;
  position: relative;
}
.tx-step-caption {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 32px);
  text-transform: uppercase;
  line-height: 1;
}
.tx-arrow {
  position: absolute;
  right: -16px;
  top: 40%;
  font-family: var(--font-mono);
  color: var(--magenta);
  font-size: 24px;
  z-index: 2;
}
@media (max-width: 900px) {
  .tx-arrow { display: none; }
}

/* ============ SCALE ============ */
.scale {
  background: var(--ink);
  border-top: 1px solid var(--line);
  padding: 0;
}
.scale-inner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px var(--pad-x);
  background:
    linear-gradient(180deg, rgba(10,10,15,0.4) 0%, rgba(10,10,15,0.85) 100%),
    radial-gradient(ellipse 80% 60% at 50% 50%, #FF2E93 0%, #6B2BD9 50%, #14141C 100%);
}
.scale-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  width: 100%;
  align-items: center;
}
@media (max-width: 900px) {
  .scale-grid { grid-template-columns: 1fr; }
}
.scale h2 {
  font-family: var(--font-display);
  font-size: clamp(60px, 10vw, 160px);
  line-height: 0.85;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.scale-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.scale-stats > div {
  border-top: 1px solid rgba(245,241,234,0.4);
  padding-top: 12px;
}
.scale-stats .big {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  letter-spacing: -0.01em;
  display: block;
  margin-bottom: 4px;
  color: var(--paper);
}
.scale-visual {
  aspect-ratio: 4/3;
}

/* ============ AI WORKFLOW (SPLIT) ============ */
.ai-workflow {
  background: var(--ink);
  border-top: 1px solid var(--line);
  padding: 0;
}
.ai-headline {
  padding: clamp(80px, 12vh, 140px) var(--pad-x) 60px;
  font-family: var(--font-display);
  font-size: clamp(56px, 9vw, 144px);
  line-height: 0.86;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  max-width: 1400px;
}
.ai-headline .alt {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ai-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
  border-top: 1px solid var(--line);
}
@media (max-width: 900px) {
  .ai-split { grid-template-columns: 1fr; }
}
.ai-side {
  position: relative;
  padding: 60px var(--pad-x);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  min-height: 60vh;
}
.ai-side.left { background: var(--ink-2); border-right: 1px solid var(--line); }
.ai-side.right {
  background:
    radial-gradient(ellipse 80% 80% at 80% 20%, rgba(107,43,217,0.4) 0%, transparent 70%),
    var(--ink-2);
}
.ai-side h3 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 80px);
  line-height: 0.9;
  text-transform: uppercase;
}
.ai-side ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.ai-side ul li::before {
  content: "→ ";
  color: var(--magenta);
}
.ai-side .ai-visual {
  aspect-ratio: 16/10;
  margin-top: 16px;
}

/* ============ POSSIBILITIES (MARQUEE GRID) ============ */
.possibilities {
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.poss-headline {
  font-family: var(--font-display);
  font-size: clamp(56px, 10vw, 160px);
  line-height: 0.85;
  text-transform: uppercase;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.poss-headline .grad {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.poss-sub {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.4vw, 22px);
  color: var(--paper-dim);
  max-width: 520px;
  margin-bottom: 56px;
}
.poss-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 140px;
  gap: 12px;
}
@media (max-width: 900px) {
  .poss-grid { grid-template-columns: repeat(3, 1fr); }
}
.poss-tile {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
}
.poss-tile.t-1 { grid-column: span 2; grid-row: span 2; }
.poss-tile.t-2 { grid-column: span 2; }
.poss-tile.t-3 { grid-column: span 2; }
.poss-tile.t-4 { grid-column: span 2; }
.poss-tile.t-5 { grid-column: span 2; grid-row: span 2; }
.poss-tile.t-6 { grid-column: span 2; }
.poss-tile.t-7 { grid-column: span 3; }
.poss-tile.t-8 { grid-column: span 3; }
@media (max-width: 900px) {
  .poss-tile { grid-column: span 1 !important; grid-row: span 1 !important; }
  .poss-tile.t-1, .poss-tile.t-5 { grid-column: span 2 !important; grid-row: span 2 !important; }
}

/* ============ PHILOSOPHY ============ */
.philosophy {
  background: var(--ink);
  border-top: 1px solid var(--line);
  text-align: center;
  padding: clamp(120px, 20vh, 240px) var(--pad-x);
}
.philosophy-quote {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 112px);
  line-height: 0.92;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  max-width: 1400px;
  margin: 0 auto;
}
.philosophy-quote .grad {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.philosophy-attr {
  margin-top: 48px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.philosophy-attr .bar { width: 32px; height: 1px; background: var(--paper-dim); }

/* ============ CASES ============ */
.cases {
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.cases-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 56px;
}
.cases-head h2 {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 112px);
  line-height: 0.88;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  max-width: 900px;
}
.case-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-strong);
}
.case-item {
  position: relative;
  display: grid;
  grid-template-columns: 60px 1fr 1.5fr 1fr 60px;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
  cursor: pointer;
  transition: background 0.3s, padding 0.3s;
}
.case-item:hover {
  background: linear-gradient(90deg, transparent 0%, rgba(255,46,147,0.08) 50%, transparent 100%);
  padding-left: 12px; padding-right: 12px;
}
@media (max-width: 900px) {
  .case-item { grid-template-columns: 40px 1fr 40px; }
  .case-item .case-prob, .case-item .case-sol { display: none; }
}
.case-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
}
.case-name {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 48px);
  text-transform: uppercase;
  line-height: 1;
}
.case-prob, .case-sol {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--paper-dim);
  line-height: 1.4;
}
.case-prob strong, .case-sol strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--magenta);
  margin-bottom: 6px;
  font-weight: 400;
}
.case-arrow {
  text-align: right;
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--paper-dim);
  transition: color 0.3s, transform 0.3s;
}
.case-item:hover .case-arrow {
  color: var(--magenta);
  transform: translateX(4px);
}

/* ============ WORKFLOW ============ */
.workflow {
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.workflow-head h2 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 128px);
  line-height: 0.88;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.workflow-head h2 .grad {
  background: var(--grad-mag-purple);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.workflow-flow {
  margin: 64px 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  position: relative;
}
@media (max-width: 900px) {
  .workflow-flow { grid-template-columns: 1fr; }
}
.flow-step {
  position: relative;
  padding: 32px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--ink-2);
  transition: transform 0.3s, border-color 0.3s;
}
.flow-step.highlight {
  background: var(--grad-warm);
  border-color: transparent;
  transform: translateY(-8px);
  color: var(--ink);
}
.flow-step.highlight .flow-num,
.flow-step.highlight .flow-name {
  color: var(--ink);
}
.flow-step.highlight .flow-tag {
  color: var(--ink);
  opacity: 0.7;
}
.flow-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--paper-dim);
  margin-bottom: 16px;
  display: block;
}
.flow-name {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 32px);
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 12px;
}
.flow-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.flow-step.highlight::after {
  content: "★";
  position: absolute;
  top: 12px; right: 14px;
  color: var(--ink);
  font-size: 14px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .services-grid { grid-template-columns: 1fr; }
}
.service {
  background: var(--ink-2);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 160px;
  transition: background 0.3s;
}
.service:hover { background: var(--ink-3); }
.service-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--magenta);
}
.service-name {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--paper);
}

/* ============ CONTACT ============ */
.contact {
  position: relative;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 60% at 50% 30%, rgba(107,43,217,0.5) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(255,46,147,0.3) 0%, transparent 70%),
    var(--ink);
  text-align: center;
}
.contact-headline {
  font-family: var(--font-display);
  font-size: clamp(64px, 12vw, 200px);
  line-height: 0.85;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.contact-headline .grad {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.contact-sub {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 56px);
  text-transform: uppercase;
  margin-bottom: 56px;
  color: var(--paper);
}
.contact-cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 28px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 0.2s, background 0.2s;
}
.btn-primary {
  background: var(--paper);
  color: var(--ink);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--magenta); color: var(--paper); }
.btn-ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--paper); transform: translateY(-2px); }
.btn .arrow {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0;
}
.contact-emails {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 48px;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
}
.contact-emails a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 4px;
}
.contact-emails a:hover { border-color: var(--magenta); color: var(--magenta); }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--line);
  padding: 32px var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.footer .logo {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

/* ============ FADE-IN ON SCROLL ============ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease, transform 1s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* parallax helper */
.parallax {
  will-change: transform;
}