/* ============================================================
   FRAME — Demo Site Stylesheet
   Self-contained: tokens, reset, layout, all components.
   No imports from the main app /css/ directory.
   ============================================================ */

/* ── 1. Design Tokens ──────────────────────────────────────── */
:root {
  /* Colors — mirrored from app tokens.css */
  --bg:           #0a0a0f;
  --surface:      #12121a;
  --surface2:     #1a1a26;
  --surface3:     #22223a;
  --border:       #2a2a3d;
  --border2:      #3a3a55;
  --accent:       #e8c547;
  --accent-dim:   #b89c35;
  --accent2:      #ff6b35;
  --text:         #e8e8f0;
  --text2:        #8888a8;
  --text3:        #55556a;
  --red:          #ff4466;
  --green:        #44cc88;

  /* Fonts */
  --font-display: 'Bebas Neue', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --font-serif:   'Instrument Serif', serif;

  /* Spacing */
  --gap-sm:  16px;
  --gap-md:  32px;
  --gap-lg:  64px;
  --gap-xl:  96px;

  /* Layout */
  --nav-h:   64px;
  --max-w:   1140px;
  --max-w-sm: 780px;
}

/* ── 2. Reset & Base ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

/* ── 3. Utilities ──────────────────────────────────────────── */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
}

section {
  padding: var(--gap-xl) 0;
}

.section-label {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  letter-spacing: 4px;
  color: var(--text);
  line-height: 1;
  margin-bottom: var(--gap-lg);
}

/* ── 4. CTA Button ─────────────────────────────────────────── */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  border: none;
  transition: background 0.15s ease, transform 0.15s ease;
  flex-shrink: 0;
  white-space: nowrap;
}

.btn-cta:hover {
  background: #f0d060;
  transform: translateY(-1px);
}

.btn-cta--large {
  padding: 16px 40px;
  font-size: 13px;
  letter-spacing: 2px;
  border-radius: 6px;
}

/* ── Language selector ─────────────────────────────────── */
.lang-selector {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-shrink: 0;
}
.lang-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: color .15s, border-color .15s;
  line-height: 1;
}
.lang-btn:hover {
  color: var(--text);
  border-color: var(--border2);
}
.lang-btn[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── 5. Sticky Navigation ──────────────────────────────────── */
#site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  padding: 0 var(--gap-md);
  background: rgba(10, 10, 15, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
  z-index: 100;
}

#site-nav.scrolled {
  border-color: var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo img {
  height: 30px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 4px;
  color: var(--accent);
  line-height: 1;
}

#site-nav nav {
  display: flex;
  gap: var(--gap-md);
  margin-left: auto;
}

#site-nav nav a {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text2);
  transition: color 0.15s ease;
  position: relative;
  padding-bottom: 2px;
}

#site-nav nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

#site-nav nav a:hover,
#site-nav nav a.active {
  color: var(--accent);
}

#site-nav nav a.active::after,
#site-nav nav a:hover::after {
  transform: scaleX(1);
}

#nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-left: auto;
  transition: border-color 0.15s;
}

#nav-toggle:hover {
  border-color: var(--border2);
}

#nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--text2);
  transition: all 0.2s ease;
}

#site-nav.nav-open #nav-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
#site-nav.nav-open #nav-toggle span:nth-child(2) {
  opacity: 0;
}
#site-nav.nav-open #nav-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ── 6. Hero Section ───────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(232, 197, 71, 0.07) 0%, transparent 70%),
    var(--bg);
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.18;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-inner {
  max-width: var(--max-w-sm);
  margin: 0 auto;
  padding: var(--gap-xl) var(--gap-md);
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(96px, 18vw, 200px);
  line-height: 0.9;
  letter-spacing: 16px;
  color: var(--accent);
  margin-bottom: 8px;
  text-shadow: 0 0 80px rgba(232, 197, 71, 0.2);
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(16px, 3vw, 22px);
  letter-spacing: 6px;
  color: var(--text3);
  margin-bottom: 32px;
  text-transform: uppercase;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-tagline em {
  color: var(--text);
  font-style: italic;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: transparent;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  border: 1px solid var(--border2);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.btn-secondary:hover {
  color: var(--text);
  border-color: var(--text3);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text3);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 1;
  animation: scrollHintFade 2.5s ease-in-out infinite;
}

@keyframes scrollHintFade {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50%       { opacity: 1;   transform: translateX(-50%) translateY(4px); }
}

/* ── 7. Features Section ───────────────────────────────────── */
#features {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-md);
}

.feature-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--gap-md) var(--gap-md) calc(var(--gap-md) + 8px);
  transition: border-color 0.2s ease, transform 0.2s ease;
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 9px;
  background: linear-gradient(135deg, rgba(232, 197, 71, 0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.feature-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.75;
}

.feature-card ul {
  list-style: none;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.feature-card ul li {
  font-size: 12px;
  color: var(--text3);
  padding-left: 16px;
  position: relative;
}

.feature-card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 10px;
}

/* ── 8. How It Works ───────────────────────────────────────── */
#how-it-works {
  background: var(--bg);
}

.steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: var(--max-w-sm);
  margin: 0 auto;
  position: relative;
}

.steps-list::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 30px;
  bottom: 30px;
  width: 1px;
  background: linear-gradient(to bottom, var(--border), var(--border2) 50%, var(--border));
}

.step {
  display: flex;
  gap: var(--gap-md);
  align-items: flex-start;
  padding-bottom: var(--gap-lg);
  position: relative;
}

.step:last-child {
  padding-bottom: 0;
}

.step-num {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--accent);
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 50%;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 1;
}

.step-body {
  padding-top: 14px;
}

.step-body h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 8px;
}

.step-body p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.75;
}

/* ── 9. Help Section ───────────────────────────────────────── */
#help {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.help-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--gap-md);
  overflow-x: auto;
  scrollbar-width: none;
}

.help-tabs::-webkit-scrollbar {
  display: none;
}

.help-tabs button {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text2);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
  margin-bottom: -1px;
}

.help-tabs button:hover {
  color: var(--text);
}

.help-tabs button[aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.help-panel {
  display: none;
}

.help-panel.is-active {
  display: block;
}

/* Shortcut table */
.shortcut-table {
  width: 100%;
  border-collapse: collapse;
}

.shortcut-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

.shortcut-table tbody tr:last-child {
  border-bottom: none;
}

.shortcut-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.shortcut-table td {
  padding: 11px 12px;
  font-size: 13px;
  color: var(--text2);
  vertical-align: middle;
}

.shortcut-table td:first-child {
  width: 260px;
  color: var(--text);
}

.shortcut-table thead th {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text3);
  text-align: left;
  padding: 8px 12px 12px;
  border-bottom: 1px solid var(--border);
}

kbd {
  display: inline-flex;
  align-items: center;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin: 0 2px;
}

.gesture-note {
  margin-top: var(--gap-md);
  padding: 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.gesture-note h4 {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 12px;
}

.gesture-table {
  width: 100%;
  border-collapse: collapse;
}

.gesture-table td {
  padding: 8px 0;
  font-size: 12px;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
}

.gesture-table tr:last-child td {
  border-bottom: none;
}

.gesture-table td:first-child {
  width: 260px;
  color: var(--text3);
  font-style: italic;
}

/* Tool description grid */
.tool-desc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--gap-sm);
}

.tool-desc-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
}

.tool-desc-card h4 {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tool-key {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 3px;
  padding: 1px 6px;
  color: var(--accent);
  letter-spacing: 1px;
}

.tool-desc-card p {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.7;
}

/* Accordion */
.accordion-list {
  display: flex;
  flex-direction: column;
}

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color 0.15s;
}

.accordion-trigger:hover {
  color: var(--accent);
}

.acc-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--text3);
  transition: transform 0.2s ease, color 0.15s;
}

.accordion-item.is-open .acc-icon {
  transform: rotate(45deg);
  color: var(--accent);
}

.accordion-body {
  display: none;
  padding: 0 0 20px;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.8;
}

.accordion-item.is-open .accordion-body {
  display: block;
}

.accordion-body p + p {
  margin-top: 10px;
}

.accordion-body ul {
  list-style: none;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.accordion-body ul li {
  padding-left: 18px;
  position: relative;
  font-size: 13px;
  color: var(--text2);
}

.accordion-body ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 11px;
}

.code-block {
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 14px 16px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text3);
  overflow-x: auto;
  white-space: pre;
}

/* ── 10. Install Section ───────────────────────────────────── */
#install {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.install-intro {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.75;
  max-width: 640px;
  margin-bottom: var(--gap-lg);
}

/* QR block */
.install-qr {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  padding: var(--gap-md);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: var(--gap-lg);
  max-width: 540px;
}

.install-qr-code {
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border2);
  line-height: 0;
}

.install-qr-code img {
  display: block;
  width: 160px;
  height: 160px;
}

.install-qr-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.install-qr-label {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--accent);
}

.install-qr-text p {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.7;
}

@media (max-width: 480px) {
  .install-qr {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Full-width stacked platform sections */
.install-platforms {
  display: flex;
  flex-direction: column;
}

.install-platform {
  padding: var(--gap-lg) 0;
}

.install-platform-header {
  margin-bottom: var(--gap-md);
}

.install-platform-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 80px);
  letter-spacing: 6px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.install-platform-meta {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text3);
}

/* Two-column body: steps left, icon right */
.install-body {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 0 var(--gap-lg);
  align-items: start;
}

.install-steps-col {
  min-width: 0;
}

.install-icon-col {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--gap-sm);
  position: sticky;
  top: calc(var(--nav-h) + var(--gap-md));
}

.install-platform-icon {
  width: 400px;
  height: auto;
  color: var(--border2);
  opacity: 0.7;
}

.install-browser-heading {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent2);
  margin-top: var(--gap-md);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.install-browser-heading:first-child {
  margin-top: 0;
}

.install-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

@media (max-width: 900px) {
  .install-body {
    grid-template-columns: 1fr;
  }

  .install-icon-col {
    display: none;
  }
}

/* Install steps */
.install-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
  margin-bottom: var(--gap-md);
}

.install-steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.inst-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  min-width: 26px;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
}

.install-steps li > div {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.7;
  padding-top: 3px;
}

.install-steps li strong {
  color: var(--text);
}

.install-steps li em {
  color: var(--text3);
  font-style: italic;
}

.install-tip {
  font-size: 12px;
  color: var(--text3);
  line-height: 1.65;
  padding: 12px 16px;
  background: var(--surface2);
  border-left: 2px solid var(--border2);
  border-radius: 0 4px 4px 0;
  max-width: 640px;
}

.install-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.65;
  padding: 12px 16px;
  background: rgba(232, 197, 71, 0.05);
  border: 1px solid rgba(232, 197, 71, 0.2);
  border-radius: 6px;
  max-width: 640px;
  margin-bottom: var(--gap-md);
}

.install-note svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.install-note strong {
  color: var(--text);
}

/* ── 11. Roadmap Section ───────────────────────────────────── */
#roadmap {
  background: var(--bg);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-md);
}

.roadmap-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--gap-md);
  position: relative;
  overflow: hidden;
}

.roadmap-card::before {
  content: '';
  display: block;
  height: 3px;
  border-radius: 8px 8px 0 0;
  position: absolute;
  top: 0; left: 0; right: 0;
}

.roadmap-card--shipped::before  { background: var(--green); }
.roadmap-card--active::before   { background: var(--accent); }
.roadmap-card--planned::before  { background: var(--border2); }

.roadmap-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

.roadmap-card--shipped .roadmap-badge  { background: rgba(68, 204, 136, 0.12); color: var(--green); }
.roadmap-card--active  .roadmap-badge  { background: rgba(232, 197, 71, 0.12);  color: var(--accent); }
.roadmap-card--planned .roadmap-badge  { background: rgba(90, 90, 110, 0.3);    color: var(--text3); }

.roadmap-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 10px;
}

.roadmap-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.roadmap-card ul li {
  font-size: 12px;
  color: var(--text2);
  padding-left: 16px;
  position: relative;
}

.roadmap-card ul li::before {
  content: '·';
  position: absolute;
  left: 4px;
  color: var(--text3);
}

.roadmap-note {
  margin-top: var(--gap-md);
  font-size: 11px;
  color: var(--text3);
  text-align: center;
  letter-spacing: 1px;
  font-style: italic;
}

/* ── 11. Footer ────────────────────────────────────────────── */
#site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
  padding: var(--gap-md) var(--gap-md);
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 4px;
  color: var(--accent);
}

.footer-copy {
  font-size: 11px;
  color: var(--text3);
  letter-spacing: 0.5px;
  margin: 0 auto;
}

/* ── 12. Responsive ────────────────────────────────────────── */
@media (max-width: 900px) {
  :root {
    --gap-md: 24px;
    --gap-lg: 48px;
    --gap-xl: 72px;
  }

  .feature-grid  { grid-template-columns: 1fr; }
  .roadmap-grid  { grid-template-columns: 1fr; }

  .steps-list::before { display: none; }

  #site-nav nav {
    display: none;
  }

  #site-nav.nav-open nav {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0; bottom: 0;
    background: var(--surface);
    padding: var(--gap-md);
    z-index: 99;
    border-top: 1px solid var(--border);
    overflow-y: auto;
  }

  #site-nav.nav-open nav a {
    font-size: 14px;
    letter-spacing: 2px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text2);
  }

  #site-nav.nav-open nav a:last-child {
    border-bottom: none;
  }

  #site-nav .btn-cta {
    display: none;
  }

  #nav-toggle {
    display: flex;
    margin-left: var(--gap-sm);
  }

  .lang-selector {
    margin-left: auto;
  }

  .tool-desc-grid {
    grid-template-columns: 1fr;
  }

  #site-footer {
    flex-direction: column;
    text-align: center;
  }

  .footer-copy {
    margin: 0;
    order: 3;
  }
}

@media (min-width: 901px) {
  #nav-toggle {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-title {
    letter-spacing: 6px;
  }

  .section-title {
    letter-spacing: 2px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

  .shortcut-table td:first-child {
    width: auto;
  }

  .step {
    gap: var(--gap-sm);
  }

  .step-num {
    width: 44px;
    height: 44px;
    font-size: 12px;
  }

  .step-body {
    padding-top: 8px;
  }
}