/* Root Two Labs — Design Tokens & Styles (Variante C · Studio Premium) */

:root {
  --bg: #FAFAF7;
  --bg-canvas: #f0eee9;
  --surface: #FFFFFF;
  --fg: #0A0A0B;
  --fg-muted: #374151;
  --muted: #6B7280;
  --border: #E5E5E0;
  --primary: #3730A3;
  --primary-deep: #1E1B4B;
  --primary-bright: #4338CA;
  --accent: #EA580C;
  --accent-light: #F97316;
  --success: #22C55E;

  --font-sans-display: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans-body: 'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

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

html {
  font-feature-settings: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans-body);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

/* ── Global √2 Decimal Background ── */
.global-digits {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  display: flex;
  justify-content: space-around;
  overflow: hidden;
  opacity: 0.04;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 56px;
  background: rgba(250,250,247,0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans-body);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.header-logo svg { display: block; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 16px;
  font-weight: 500;
}

.header-nav a {
  color: var(--fg-muted);
  transition: color 120ms;
}

.header-nav a:hover { color: var(--accent); }

.lang-switch {
  font-family: var(--font-sans-body);
  font-size: 14px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  color: var(--muted) !important;
  background: rgba(0,0,0,0.04);
  transition: background 160ms, color 160ms;
  margin-left: 8px;
  display: inline-flex;
  align-items: center;
}

.lang-switch:hover {
  background: var(--fg);
  color: var(--bg) !important;
}

.header-cta {
  display: inline-block;
  padding: 11px 20px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  transition: transform 140ms, box-shadow 140ms;
}

.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

/* ── Hero ── */
.hero {
  padding: 44px 56px 32px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
  min-height: 380px;
}

.hero-content { position: relative; z-index: 2; }

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 28px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.hero-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}

.hero-headline {
  font-family: var(--font-sans-display);
  font-size: clamp(48px, 5.4vw, 80px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  font-weight: 600;
  text-wrap: balance;
}

.hero-headline-gradient {
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 19px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin: 20px 0 28px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  box-shadow: 0 4px 14px rgba(234,88,12,0.32), 0 1px 2px rgba(234,88,12,0.2);
  transition: transform 160ms, box-shadow 160ms;
}

.btn-primary svg { opacity: 0.9; }
.btn-primary svg path { stroke: #fff !important; }

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(234,88,12,0.38), 0 1px 2px rgba(234,88,12,0.2);
}

.btn-secondary {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  transition: transform 160ms, box-shadow 160ms;
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  overflow: hidden;
}

/* ── Sqrt2 Decimal Backdrop ── */
.decimal-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: center;
  justify-items: center;
  font-family: var(--font-mono);
  overflow: hidden;
}

.decimal-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: clamp(20px, 2.2vw, 30px);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--fg);
  user-select: none;
}

.decimal-col:nth-child(odd) { opacity: 0.045; }
.decimal-col:nth-child(even) { opacity: 0.06; }

.decimal-col:nth-child(1) { animation: breath 9s ease-in-out infinite 0s; }
.decimal-col:nth-child(2) { animation: breath 9s ease-in-out infinite 0.7s; }
.decimal-col:nth-child(3) { animation: breath 9s ease-in-out infinite 1.4s; }
.decimal-col:nth-child(4) { animation: breath 9s ease-in-out infinite 2.1s; }
.decimal-col:nth-child(5) { animation: breath 9s ease-in-out infinite 2.8s; }
.decimal-col:nth-child(6) { animation: breath 9s ease-in-out infinite 3.5s; }

@keyframes breath {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.decimal-footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: clamp(11px, 1vw, 14px);
  letter-spacing: 0.02em;
  color: var(--fg);
  opacity: 0.32;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 24px;
}

.decimal-footer .accent { color: var(--accent); font-weight: 600; }
.decimal-footer .faded { opacity: 0.7; }

/* Monument treatment */
.monument-wrap {
  position: relative;
  z-index: 1;
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.monument-glow {
  position: absolute;
  inset: 0;
  filter: blur(60px);
  opacity: 0.16;
  background: radial-gradient(circle at 50% 58%, var(--primary) 0%, transparent 60%);
}

.monument-svg { position: relative; }

.c-mono-radical {
  stroke-dasharray: 220;
  stroke-dashoffset: 220;
  animation: draw-radical 1.4s cubic-bezier(.65,.05,.36,1) forwards;
}

.c-mono-two {
  stroke-dasharray: 130;
  stroke-dashoffset: 130;
  opacity: 0;
  animation: draw-two 1.0s cubic-bezier(.65,.05,.36,1) 1.2s forwards;
}

@keyframes draw-radical { to { stroke-dashoffset: 0; } }
@keyframes draw-two { to { stroke-dashoffset: 0; opacity: 1; } }

/* ── Sections ── */
.section {
  padding: 44px 56px;
  background: var(--bg);
}

.section--white {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-eyebrow {
  font-family: var(--font-sans-body);
  font-size: 20px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-sans-display);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  text-wrap: balance;
  max-width: 720px;
}

.section-sub {
  font-size: 19px;
  color: #4B5563;
  line-height: 1.55;
  margin-top: 10px;
  max-width: 720px;
}

/* ── Solutions Grid ── */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 28px;
}

.solution-card {
  padding: 24px 24px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: transform 200ms, box-shadow 200ms, border-color 200ms;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

.solution-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.08);
  border-color: #D4D4D0;
}

.solution-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.solution-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-card-id {
  font-family: var(--font-sans-body);
  font-size: 15px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.solution-card h3 {
  font-family: var(--font-sans-display);
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.solution-card p {
  font-size: 17px;
  color: #4B5563;
  line-height: 1.6;
}

/* ── Approach Tabs ── */
.approach-tabs {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  margin-top: 28px;
}

.approach-tab-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.approach-tab {
  text-align: left;
  padding: 14px 16px;
  border-left: 2px solid var(--border);
  color: var(--fg);
  font-size: 16px;
  font-weight: 500;
  transition: all 140ms;
  display: flex;
  align-items: center;
  gap: 12px;
  background: transparent;
}

.approach-tab:hover {
  background: rgba(234,88,12,0.03);
}

.approach-tab.active {
  background: rgba(234,88,12,0.06);
  border-left-color: var(--accent);
  font-weight: 600;
}

.approach-tab-num {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--muted);
  width: 22px;
}

.approach-content {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  background: #fff;
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.approach-metric {
  font-family: var(--font-sans-body);
  font-size: 15px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}

h3.approach-title {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.approach-body {
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-muted);
  max-width: 560px;
}

.approach-flow {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.approach-flow-step {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
}

.approach-flow-arrow { color: var(--accent); }

/* ── √2 Eyebrow Badge ── */
.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.eyebrow-badge svg {
  opacity: 0.8;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 404 Page ── */
.page-404 {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
  background: var(--bg);
}

.page-404-logo {
  margin-bottom: 48px;
  opacity: 0.15;
}

.page-404 h1 {
  font-family: var(--font-sans-display);
  font-size: clamp(72px, 12vw, 160px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.page-404 p {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 8px;
  max-width: 400px;
}

.page-404-math {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--border);
  margin-bottom: 40px;
}

.page-404 a {
  display: inline-block;
  padding: 14px 28px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  transition: transform 140ms;
}

.page-404 a:hover {
  transform: translateY(-2px);
}

/* ── Cases ── */
.cases-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  margin-top: 28px;
}

.case-main {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

.case-main-visual {
  height: 220px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  position: relative;
  overflow: hidden;
}

.case-main-label {
  position: absolute;
  top: 20px;
  left: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-main-body { padding: 32px 32px 36px; }

.case-main-body h3 {
  font-family: var(--font-sans-display);
  font-size: 30px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: -0.025em;
}

.case-main-body p {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.6;
  margin-bottom: 24px;
}

.case-meta {
  display: flex;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
}

.case-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.cases-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}

.case-soon {
  padding: 24px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-soon-label {
  font-family: var(--font-sans-body);
  font-size: 16px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 12px;
}

.case-soon h4 {
  font-family: var(--font-sans-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.015em;
}

.case-soon p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.6;
}

.case-soon-footer {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-soon-footer-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}

/* ── Team ── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.team-card {
  padding: 28px;
  background: var(--bg);
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: transform 200ms, box-shadow 200ms;
}

.team-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

.team-avatar {
  margin-bottom: 16px;
  border-radius: 12px;
  overflow: hidden;
  display: inline-block;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.team-role {
  font-family: var(--font-sans-body);
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 6px;
}

.team-name {
  font-family: var(--font-sans-display);
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.team-bio {
  font-size: 15.5px;
  color: #4B5563;
  line-height: 1.6;
  margin-bottom: 18px;
}

.team-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.team-tag {
  font-family: var(--font-mono);
  font-size: 16px;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg-muted);
}

.team-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--muted);
  transition: color 160ms;
}

.team-linkedin:hover { color: var(--accent); }
.team-linkedin svg { flex-shrink: 0; }

/* ── Contact ── */
.contact-section {
  padding: 44px 56px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.contact-backdrop {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-eyebrow {
  font-family: var(--font-sans-body);
  font-size: 20px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 20px;
}

.contact-title {
  font-family: var(--font-sans-display);
  font-size: clamp(32px, 3.5vw, 44px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.contact-body {
  font-size: 19px;
  color: #4B5563;
  line-height: 1.6;
  margin-top: 16px;
  max-width: 460px;
}

.contact-promises {
  margin-top: 20px;
  display: grid;
  gap: 14px;
}

.contact-promise {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  color: var(--fg-muted);
}

.contact-promise-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(234,88,12,0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.contact-form-card {
  background: #fff;
  padding: 28px;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 12px 48px rgba(0,0,0,0.06);
}

/* Form */
.form-grid { display: grid; gap: 14px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }

.form-field { display: grid; gap: 6px; }

.form-label {
  font-family: var(--font-sans-body);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--muted);
}

.form-input {
  width: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--fg);
  font-family: var(--font-sans-body);
  font-size: 19px;
  outline: none;
  transition: border-color 120ms, box-shadow 120ms;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(234,88,12,0.1);
}

.form-input.error {
  border-color: #DC2626;
  background: rgba(220,38,38,0.03);
}

.form-error {
  color: #DC2626;
}

.form-error {
  font-family: var(--font-sans-body);
  font-size: 14px;
  color: #DC2626;
  min-height: 18px;
}

/* Honeypot — invisible to humans, bots fill it */
.form-hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
  pointer-events: none;
  tabindex: -1;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.form-hint {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.form-submit {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.005em;
  transition: transform 120ms, background 120ms;
}

.form-submit { display: inline-flex; align-items: center; gap: 10px; }
.form-submit-icon { flex-shrink: 0; opacity: 0.85; transition: transform 200ms; }
.form-submit:hover .form-submit-icon { transform: translateX(3px); }
.form-submit:active { transform: scale(0.98); }
.form-submit:hover { background: #d9520a; }

.form-success {
  border: 1px solid var(--border);
  background: rgba(234,88,12,0.06);
  border-radius: 12px;
  padding: 28px;
}

.form-success-code {
  font-family: var(--font-sans-body);
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 8px;
}

.form-success-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-success-body {
  color: var(--muted);
  font-size: 16px;
}

/* ── Footer ── */
.site-footer {
  padding: 28px 56px;
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-legal {
  font-size: 17px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 17px;
  color: var(--muted);
}

.footer-links a { transition: color 120ms; }
.footer-links a:hover { color: var(--fg); }

.footer-lang-switch {
  font-family: var(--font-sans-body);
  font-size: 17px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted) !important;
  transition: background 160ms, color 160ms;
}

.footer-lang-switch:hover {
  background: var(--fg);
  color: var(--bg) !important;
  border-color: var(--fg);
}

/* ── Waves SVG in case card ── */
.case-waves line { stroke: rgba(255,255,255,0.12); stroke-width: 1; fill: none; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 400px; }
  .monument-wrap { width: 360px; height: 360px; }
  .monument-wrap svg { width: 340px; height: 340px; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .approach-tabs { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .site-header { padding: 16px 24px; }
  .header-nav { display: none; }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    top: 0;
    z-index: 100;
    background: var(--bg);
    padding: 80px 32px 32px;
    gap: 24px;
    font-size: 20px;
    align-items: flex-start;
  }
  .header-nav.open .lang-switch {
    margin-left: 0;
    margin-top: 16px;
  }
  .hamburger { display: flex; }
  .section, .hero { padding: 28px 20px; }
  .contact-section { padding: 28px 20px; }
  .solutions-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .monument-wrap { width: 280px; height: 280px; }
  .monument-wrap svg { width: 260px; height: 260px; }
}

/* ── Hamburger Button ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: 101;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform 200ms, opacity 200ms;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .global-digit-col { animation: none; transform: none; }
  .c-mono-radical, .c-mono-two { animation: none; stroke-dashoffset: 0; opacity: 1; }
}