/* ============================================================
   Home Designer — Unity Plugin Promo Site
   Design: warm amber accent on architectural warm off-white
   Fonts: Raleway (headings) + Epilogue (body)
   ============================================================ */

/* ── Design Tokens ── */
:root {
  /* Colors — OKLCH for perceptual uniformity */
  --bg:            oklch(97% 0.008 65);
  --surface:       oklch(93% 0.010 65);
  --surface-up:    oklch(89% 0.012 65);
  --border:        oklch(80% 0.010 65);
  --border-subtle: oklch(87% 0.008 65);

  --text:          oklch(18% 0.012 58);
  --text-muted:    oklch(42% 0.010 58);
  --text-dim:      oklch(62% 0.008 58);

  --accent:        oklch(50% 0.140 65);
  --accent-dim:    oklch(60% 0.120 65);
  --accent-faint:  oklch(92% 0.040 65);
  --accent-glow:   oklch(50% 0.140 65 / 0.15);
  --accent-text:   oklch(100% 0 0);

  /* Typography */
  --font-display: 'Raleway', system-ui, sans-serif;
  --font-body:    'Epilogue', system-ui, sans-serif;

  /* Fluid type scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  clamp(1.75rem, 3vw, 2.25rem);
  --text-4xl:  clamp(2.25rem, 5vw, 3.5rem);
  --text-5xl:  clamp(3rem, 7vw, 5.5rem);
  --text-hero: clamp(3.5rem, 9vw, 7.5rem);

  /* Spacing (4pt scale) */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Layout */
  --container: 1200px;
  --nav-h: 68px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
}

/* ── 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);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul { list-style: none; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

@media (max-width: 640px) {
  .container { padding-inline: var(--space-md); }
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out), background 0.18s;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  background: oklch(76% 0.14 65);
  box-shadow: 0 0 24px 4px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-outline-accent {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}
.btn-outline-accent:hover {
  background: var(--accent-faint);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ── Navigation ── */
.site-nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

.site-nav.scrolled {
  background: oklch(97% 0.008 65 / 0.92);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 6px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.nav-logo-mark svg {
  width: 18px;
  height: 18px;
  fill: oklch(10% 0.005 58);
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav-logo-text span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s;
  letter-spacing: 0.02em;
}

.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--accent); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s var(--ease-out), opacity 0.25s;
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    inset-inline: 0;
    background: var(--surface);
    padding: var(--space-xl);
    gap: var(--space-xl);
    border-bottom: 1px solid var(--border);
  }

  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}

/* ── Video Placeholder ── */
.video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.video-wrap iframe,
.video-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  object-fit: cover;
}

.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: var(--surface-up);
  cursor: pointer;
  transition: background 0.2s;
  overflow: hidden;
}

.video-preview-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  z-index: 0;
}

.video-placeholder .play-btn,
.video-placeholder .video-label {
  position: relative;
  z-index: 1;
}

.video-placeholder:hover { background: oklch(85% 0.013 65); }

.video-placeholder:hover .play-btn { transform: scale(1.08); }

.play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent);
  display: grid;
  place-items: center;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
  box-shadow: 0 0 0 0 var(--accent-glow);
  flex-shrink: 0;
}

.play-btn:hover {
  box-shadow: 0 0 32px 8px var(--accent-glow);
}

.play-btn svg {
  width: 24px;
  height: 24px;
  fill: var(--accent-text);
  margin-left: 3px;
}

.play-btn-sm {
  width: 44px;
  height: 44px;
}

.play-btn-sm svg {
  width: 16px;
  height: 16px;
}

.video-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Footer ── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border-subtle);
  padding-block: var(--space-3xl) var(--space-2xl);
  margin-top: var(--space-5xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: var(--space-3xl);
  align-items: start;
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 28ch;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color 0.15s;
  margin-bottom: var(--space-sm);
}

.footer-col a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-dim);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
}

/* ──────────────────────────────────────────
   PAGE: INDEX (Landing)
   ────────────────────────────────────────── */

/* Hero */
.hero {
  min-height: 100svh;
  padding-top: var(--nav-h);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      oklch(45% 0.008 58 / 0.18) 39px,
      oklch(45% 0.008 58 / 0.18) 40px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      oklch(45% 0.008 58 / 0.18) 39px,
      oklch(45% 0.008 58 / 0.18) 40px
    );
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--space-3xl);
  align-items: center;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-xl);
  padding-block: var(--space-5xl) var(--space-4xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--accent-faint);
  border: 1px solid var(--accent-dim);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-xl);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xl);
}

.hero-title .accent { color: var(--accent); }

.hero-desc {
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 42ch;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
}

.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.hero-stat-sep {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero-video-wrap {
  position: relative;
}

.hero-video-wrap .video-wrap {
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px oklch(20% 0.010 58 / 0.14);
}

/* Marquee strip */
.marquee-strip {
  overflow: hidden;
  padding-block: var(--space-xl);
  border-block: 1px solid var(--border-subtle);
  background: var(--surface);
  position: relative;
  z-index: 1;
}

.marquee-track {
  display: flex;
  gap: var(--space-3xl);
  width: max-content;
  animation: marquee 30s linear infinite;
}

.marquee-track:hover { animation-play-state: paused; }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  white-space: nowrap;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.marquee-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-dim);
  flex-shrink: 0;
}

/* Features Section */
.features {
  padding-block: var(--space-5xl);
}

.features-header {
  margin-bottom: var(--space-3xl);
}

.features-header h2 {
  font-size: var(--text-4xl);
  max-width: 16ch;
  line-height: 1.0;
}

.features-header p {
  margin-top: var(--space-lg);
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 52ch;
  font-weight: 300;
}

/* Features alternating rows */
.features-list {
  display: flex;
  flex-direction: column;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-areas: "text video";
  gap: var(--space-4xl);
  align-items: center;
  padding-block: var(--space-4xl);
  border-bottom: 1px solid var(--border-subtle);
}

.feature-row:last-child { border-bottom: none; }

.feature-row.reverse {
  grid-template-areas: "video text";
}

.feature-row-text {
  grid-area: text;
}

.feature-row-video {
  grid-area: video;
}

.feature-row-video .video-wrap {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px oklch(20% 0.010 58 / 0.10);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--surface-up);
  position: relative;
}

.feature-row-video .video-placeholder {
  background: linear-gradient(135deg, oklch(80% 0.018 65), oklch(74% 0.015 65));
  position: absolute;
  inset: 0;
}

.feature-row-video .video-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 19px,
      oklch(55% 0.012 65 / 0.28) 19px,
      oklch(55% 0.012 65 / 0.28) 20px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 19px,
      oklch(55% 0.012 65 / 0.28) 19px,
      oklch(55% 0.012 65 / 0.28) 20px
    );
  pointer-events: none;
}

.feature-num {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.feature-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  line-height: 1.1;
}

.feature-sub {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.feature-desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.75;
  font-weight: 300;
  max-width: 50ch;
}

@media (max-width: 768px) {
  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
    grid-template-areas: "video" "text";
    gap: var(--space-xl);
    padding-block: var(--space-2xl);
  }
}

/* Purchase CTA */
.purchase {
  padding-block: var(--space-5xl);
  background: var(--surface);
  border-block: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.purchase::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: var(--accent-faint);
  filter: blur(80px);
  pointer-events: none;
}

.purchase-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.purchase-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.purchase-title {
  font-size: var(--text-4xl);
  line-height: 1.0;
  margin-bottom: var(--space-lg);
}

.purchase-desc {
  font-size: var(--text-base);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.7;
  max-width: 45ch;
  margin-bottom: var(--space-2xl);
}

.purchase-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.purchase-price {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 900;
  color: var(--text);
}

.purchase-price-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.purchase-right {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.purchase-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.purchase-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--surface-up);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.purchase-feature-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.purchase-feature-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text);
  margin-bottom: 2px;
}

.purchase-feature-text p {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 300;
}

@media (max-width: 768px) {
  .purchase-inner {
    grid-template-columns: 1fr;
  }
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-title { font-size: clamp(3rem, 12vw, 5rem); }
  .hero-meta { flex-wrap: wrap; }
}

/* ── FAQ ── */
.faq {
  padding-block: var(--space-5xl);
  background: var(--surface);
}

.faq-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.faq-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: var(--space-md);
}

.faq-intro {
  color: var(--text-muted);
  font-size: var(--text-lg);
  font-weight: 300;
}

.faq-intro a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg);
  overflow: hidden;
  transition: border-color 0.18s var(--ease-out);
}

.faq-item[open] {
  border-color: var(--accent);
}

.faq-question {
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  transition: color 0.18s var(--ease-out);
  user-select: none;
}

.faq-question::-webkit-details-marker { display: none; }

.faq-question::after {
  content: '+';
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s var(--ease-out);
  line-height: 1;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-question:hover { color: var(--accent); }

.faq-answer {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

.faq-answer p { margin-bottom: var(--space-sm); }
.faq-answer p:last-child { margin-bottom: 0; }

.faq-answer code {
  font-family: ui-monospace, 'Cascadia Code', 'SF Mono', monospace;
  font-size: 0.85em;
  background: var(--surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--accent);
}

/* ──────────────────────────────────────────
   PAGE: DEMO
   ────────────────────────────────────────── */

.page-hero {
  padding-top: calc(var(--nav-h) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
}

.page-hero-inner {
  max-width: 640px;
}

.page-hero-inner h1 {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-lg);
}

.page-hero-inner p {
  font-size: var(--text-lg);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.65;
  max-width: 52ch;
}

.demo-platforms {
  padding-bottom: var(--space-5xl);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.platform-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transition: border-color 0.2s, transform 0.25s var(--ease-out);
}

.platform-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-4px);
}

.platform-card.featured {
  background: var(--surface-up);
  border-color: var(--accent-dim);
}

.platform-card.featured .platform-badge,
.platform-card.coming-soon .platform-badge {
  display: inline-flex;
}

.platform-card.coming-soon {
  opacity: 0.72;
}

.platform-card.coming-soon .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.platform-badge {
  display: none;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-faint);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: -var(--space-sm);
  align-self: flex-start;
}

.platform-icon {
  width: 52px;
  height: 52px;
  background: var(--surface-up);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  color: var(--text-muted);
}

.platform-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.platform-card h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
}

.platform-card p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  flex: 1;
}

.platform-specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.platform-spec {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-dim);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border-subtle);
}

.platform-spec:last-child { border-bottom: none; }
.platform-spec strong { color: var(--text-muted); font-weight: 500; }

.demo-note {
  padding: var(--space-2xl);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.demo-note-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.demo-note p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.65;
  font-weight: 300;
}

.demo-note strong { color: var(--text); font-weight: 500; }

/* Demo video preview */
.demo-preview {
  padding-bottom: var(--space-5xl);
}

.demo-preview h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
}

.demo-preview p {
  font-size: var(--text-base);
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: var(--space-2xl);
  max-width: 55ch;
}

/* ──────────────────────────────────────────
   PAGE: DISCOUNT FORM
   ────────────────────────────────────────── */

.discount-tiers {
  padding-bottom: var(--space-4xl);
}

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

@media (max-width: 640px) {
  .tiers-grid { grid-template-columns: 1fr; }
}

.tier-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.25s var(--ease-out);
}

.tier-card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
}

.tier-card.gold {
  background: var(--surface-up);
  border-color: var(--accent-dim);
}

.tier-card.gold .tier-discount {
  color: var(--accent);
}

.tier-name {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.tier-range {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.tier-range-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.tier-discount {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 900;
  color: var(--text-muted);
  line-height: 1;
}

.tier-discount-label {
  font-size: var(--text-xs);
  color: var(--text-dim);
  margin-top: var(--space-sm);
}

/* Form Section */
.discount-form-section {
  padding-bottom: var(--space-5xl);
}

.discount-form-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 768px) {
  .discount-form-layout { grid-template-columns: 1fr; }
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
}

.form-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.form-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
}

/* Form fields */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
}

label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="file"],
textarea,
select {
  width: 100%;
  background: var(--surface-up);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px var(--space-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

input[type="file"] {
  padding: 10px var(--space-md);
  cursor: pointer;
  color: var(--text-muted);
}

input[type="file"]::file-selector-button {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 4px 12px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  margin-right: var(--space-md);
  transition: border-color 0.15s, color 0.15s;
}

input[type="file"]::file-selector-button:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder,
textarea::placeholder { color: var(--text-dim); }

.form-hint {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--text-dim);
  line-height: 1.5;
}

.input-prefix {
  position: relative;
}

.input-prefix::before {
  content: '$';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--text-sm);
  pointer-events: none;
}

.input-prefix input {
  padding-left: 28px;
}

.form-divider {
  height: 1px;
  background: var(--border-subtle);
  margin-block: var(--space-xl);
}

.form-submit {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.form-privacy {
  font-size: var(--text-xs);
  color: var(--text-dim);
  max-width: 40ch;
  line-height: 1.5;
}

/* Error message */
.form-error-msg {
  margin-top: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: oklch(92% 0.04 25 / 0.15);
  border: 1px solid oklch(60% 0.12 25 / 0.4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: oklch(45% 0.12 25);
  line-height: 1.5;
}

/* Success state */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-3xl) var(--space-2xl);
}

.form-success.visible { display: block; }

.success-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-faint);
  border: 1px solid var(--accent-dim);
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto var(--space-xl);
  color: var(--accent);
}

.success-icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.form-success h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.form-success p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.65;
  max-width: 45ch;
  margin-inline: auto;
}

/* Sidebar info */
.discount-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.info-block {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.info-block h4 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.info-block p, .info-block li {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.7;
}

.info-block ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.info-block li {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.info-block li::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-dim);
  flex-shrink: 0;
  margin-top: 8px;
}

.info-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.info-step {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-faint);
  border: 1px solid var(--accent-dim);
  display: grid;
  place-items: center;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  font-family: var(--font-display);
}

.step-text {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  padding-top: 2px;
}


/* ============================================================
   ROADMAP PAGE
   ============================================================ */

/* ── Legend ── */

.roadmap-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3xl);
}

.roadmap-legend-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  flex-shrink: 0;
}

.roadmap-legend-note {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 300;
  margin-left: auto;
}

.roadmap-legend-note a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 400;
}

.roadmap-legend-note a:hover {
  text-decoration: underline;
}

/* ── Timeline List ── */

.roadmap-section {
  padding-block: 0 var(--space-5xl);
}

.roadmap-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  position: relative;
  padding-left: 44px;
}

.roadmap-list::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent) 0%, var(--border) 100%);
  border-radius: 2px;
}

/* ── Item Card ── */

.roadmap-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: border-color 0.2s var(--ease-out), transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.roadmap-item:hover {
  border-color: var(--border);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px oklch(20% 0.01 58 / 0.07);
}

/* Timeline dot */
.roadmap-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: calc(var(--space-2xl) + 4px);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}

.roadmap-item.status-in-dev::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-faint);
}

.roadmap-item-header {
  margin-bottom: var(--space-lg);
}

.roadmap-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.roadmap-number {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.12em;
}

/* ── Status Badge ── */

.roadmap-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.roadmap-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.roadmap-status.status-planned {
  color: var(--text-dim);
  background: var(--surface-up);
}

.roadmap-status.status-in-dev {
  color: var(--accent);
  background: var(--accent-faint);
}

/* ── Item Content ── */

.roadmap-item h3 {
  font-size: var(--text-2xl);
  font-weight: 800;
  font-family: var(--font-display);
  color: var(--text);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.roadmap-item p {
  font-size: var(--text-base);
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.75;
  max-width: 72ch;
  margin-bottom: var(--space-lg);
  margin-top: 0;
}

/* ── Tags ── */

.roadmap-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.roadmap-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-dim);
  background: var(--surface-up);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  letter-spacing: 0.02em;
}

/* ── Visually Hidden (accessibility) ── */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Responsive ── */

@media (max-width: 640px) {
  .roadmap-list {
    padding-left: 32px;
  }

  .roadmap-list::before {
    left: 8px;
  }

  .roadmap-item::before {
    left: -25px;
    width: 14px;
    height: 14px;
  }

  .roadmap-item {
    padding: var(--space-lg);
  }

  .roadmap-item h3 {
    font-size: var(--text-xl);
  }

  .roadmap-legend {
    gap: var(--space-sm);
    padding: var(--space-md);
  }

  .roadmap-legend-note {
    margin-left: 0;
    width: 100%;
  }
}