* {
  box-sizing: border-box;
}

:root {
  --bg: #0d0819;
  --bg-alt: #150e2b;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --surface-border: rgba(167, 139, 250, 0.18);
  --text: #ede9fe;
  --text-muted: #a99fc7;
  --text-dim: #7c7295;
  --purple-50: #f5f3ff;
  --purple-300: #c4b5fd;
  --purple-400: #a78bfa;
  --purple-500: #8b5cf6;
  --purple-600: #7c3aed;
  --purple-700: #6d28d9;
  --max: 1160px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(60% 45% at 15% 0%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(50% 40% at 100% 10%, rgba(124, 58, 237, 0.18), transparent 60%),
    radial-gradient(70% 50% at 50% 100%, rgba(109, 40, 217, 0.16), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

::selection {
  background: var(--purple-500);
  color: white;
}

/* Reveal-on-scroll */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 24px;
  background: rgba(13, 8, 25, 0.7);
  backdrop-filter: blur(10px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  color: var(--text);
  z-index: 2;
}

.nav-brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-400), var(--purple-600));
  box-shadow: 0 0 14px var(--purple-500);
}

.nav-toggle {
  display: none;
}

.nav-burger {
  display: none;
  width: 22px;
  height: 16px;
  position: relative;
  cursor: pointer;
  z-index: 2;
}

.nav-burger span,
.nav-burger span::before,
.nav-burger span::after {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease;
}

.nav-burger span {
  top: 7px;
}

.nav-burger span::before {
  content: "";
  top: -7px;
}

.nav-burger span::after {
  content: "";
  top: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--purple-300);
}

.nav-links .nav-cta {
  padding: 8px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: white !important;
  font-weight: 600;
}

@media (max-width: 760px) {
  .nav-burger {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 0 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 88px 24px 24px;
    background: rgba(13, 8, 25, 0.98);
    border-bottom: 1px solid var(--surface-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .nav-links a {
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--surface-border);
  }

  .nav-links .nav-cta {
    margin-top: 8px;
    text-align: center;
  }

  .nav-toggle:checked ~ .nav-links {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle:checked ~ .nav-burger span {
    background: transparent;
  }

  .nav-toggle:checked ~ .nav-burger span::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle:checked ~ .nav-burger span::after {
    top: 0;
    transform: rotate(-45deg);
  }
}

/* Section shell */

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-header .eyebrow {
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 38px);
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.section-header p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}

/* Eyebrow pill (shared) */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--purple-300);
  font-size: 13px;
  font-weight: 600;
}

/* Hero */

.hero {
  text-align: center;
  padding: 72px 20px 48px;
  position: relative;
}

.hero .eyebrow {
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 68px);
  margin: 0 0 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 20%, var(--purple-300) 60%, var(--purple-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 18px;
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--text-muted);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.hero-buttons a {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.hero-buttons a:first-child {
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: white;
  box-shadow: 0 8px 24px -8px rgba(139, 92, 246, 0.6);
}

.hero-buttons a:first-child:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -8px rgba(139, 92, 246, 0.75);
}

.hero-buttons a:not(:first-child) {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text);
}

.hero-buttons a:not(:first-child):hover {
  border-color: var(--purple-400);
  transform: translateY(-2px);
}

.stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.stats div {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
}

/* Badge row (shields.io) */

.badge-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.badge-row img {
  height: 22px;
  border-radius: 4px;
}

/* Feature grid ("Why VelvetJS") */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 18px;
  padding: 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature:hover {
  transform: translateY(-3px);
  border-color: var(--purple-400);
}

.feature .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(109, 40, 217, 0.15));
  border: 1px solid var(--surface-border);
  margin-bottom: 16px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* How it works steps */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

@media (max-width: 760px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

.step {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 18px;
}

.step .step-number {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  margin-bottom: 16px;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Package cards */

.packages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  padding: 16px 24px 0;
  max-width: var(--max);
  margin: auto;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 60% at 0% 0%, rgba(139, 92, 246, 0.15), transparent 60%);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--purple-400);
  box-shadow: 0 16px 40px -16px rgba(139, 92, 246, 0.45);
}

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

.card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(109, 40, 217, 0.15));
  border: 1px solid var(--surface-border);
  margin-bottom: 16px;
  position: relative;
}

.card h2,
.card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  position: relative;
}

.card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
  position: relative;
  min-height: 48px;
}

.actions {
  margin-top: 20px;
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.actions a {
  color: var(--purple-300);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  padding: 8px 0;
  transition: color 0.2s ease;
}

.actions a:hover {
  color: var(--purple-50);
}

.actions a:first-child {
  padding: 8px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: white;
}

.actions a:first-child:hover {
  color: white;
  opacity: 0.9;
}

pre {
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
  font-size: 14px;
}

code {
  color: var(--purple-300);
}

footer {
  text-align: center;
  padding: 48px 20px;
  border-top: 1px solid var(--surface-border);
  color: var(--text-muted);
  margin-top: 40px;
}

footer a {
  color: var(--purple-300);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--purple-50);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-top: 12px;
}

/* Content pages (support, contact, package demos) */

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 24px 80px;
}

.content h2 {
  font-size: 22px;
  margin-top: 48px;
  margin-bottom: 16px;
}

.content h2:first-child {
  margin-top: 0;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--text);
}

.faq-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* Live demo panels (package pages) */

.demo-panel {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  padding: 4px;
  margin-bottom: 8px;
}

.demo-panel-inner {
  background: var(--bg-alt);
  border-radius: 16px;
  padding: 24px;
}

.demo-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--surface-border);
}

.demo-toolbar button {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.demo-toolbar button:hover,
.demo-toolbar button.is-active {
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: white;
  border-color: transparent;
}

.demo-editable {
  min-height: 160px;
  outline: none;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.demo-editable:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
}

.demo-dropzone {
  border: 2px dashed var(--surface-border);
  border-radius: 14px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.demo-dropzone.is-dragover,
.demo-dropzone:hover {
  border-color: var(--purple-400);
  background: rgba(139, 92, 246, 0.06);
}

.demo-dropzone .icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.demo-dropzone p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.demo-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.demo-preview-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--surface-border);
}

.demo-qr-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
}

.demo-qr-layout .qr-controls {
  flex: 1 1 240px;
}

.demo-qr-layout input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
}

.demo-qr-layout input:focus {
  outline: none;
  border-color: var(--purple-400);
}

.demo-qr-layout .swatches {
  display: flex;
  gap: 8px;
}

.demo-qr-layout .swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
}

.demo-qr-layout .swatch.is-active {
  border-color: white;
}

.demo-qr-preview {
  flex: 0 0 auto;
  background: white;
  padding: 12px;
  border-radius: 14px;
  line-height: 0;
}

.demo-qr-preview img {
  display: block;
  width: 160px;
  height: 160px;
}

.demo-caption {
  margin-top: 16px;
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
}

/* Floating support button */

.support-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px 12px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 10px 30px -8px rgba(139, 92, 246, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.support-fab .support-fab-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 16px;
  line-height: 1;
}

.support-fab:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px -6px rgba(139, 92, 246, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}

.support-fab .support-fab-label {
  white-space: nowrap;
}

@media (max-width: 560px) {
  .support-fab {
    right: 14px;
    bottom: 14px;
    padding: 12px;
  }

  .support-fab .support-fab-label {
    display: none;
  }
}