/* Ball / Gola — Pure Dark Design System */
/* Based on design/Ball - Brand.dc.html & design/Ball - UI Reference.dc.html */

:root {
  --bg-main: #08080C;
  --bg-gradient-end: #171B31;
  --surface-base: #0E0E14;
  --surface-card: #15151C;
  --surface-card-hover: #1E1E28;
  --surface-glass: rgba(14, 14, 20, 0.75);
  
  --border-line: rgba(255, 255, 255, 0.08);
  --border-line-accent: rgba(110, 134, 255, 0.3);

  --ink-primary: #F2F2F7;
  --ink-secondary: #B4B4C6;
  --ink-muted: #6E6E82;

  --accent-color: #6E86FF;
  --accent-glow: rgba(110, 134, 255, 0.25);
  --brand-cyan: #8FDCFF;
  --brand-blue: #5B6CFF;
  --brand-purple: #B44BFF;

  --running-green: #4AE38B;
  --running-glow: rgba(74, 227, 139, 0.35);

  --font-sans: 'Segoe UI', 'Segoe UI Variable Text', system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, monospace;
  --font-fluent: 'Segoe Fluent Icons', 'Segoe MDL2 Assets', 'Segoe UI Symbol';

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 32px rgba(112, 120, 255, 0.2);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-main);
  background-image: radial-gradient(120% 90% at 50% 0%, #171B31 0%, #08080C 70%);
  background-attachment: fixed;
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

::selection {
  background: rgba(110, 134, 255, 0.45);
  color: #FFF;
}

.fluent-icon {
  font-family: var(--font-fluent);
  font-style: normal;
  line-height: 1;
}

.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--ink-primary);
  letter-spacing: -0.015em;
  font-weight: 600;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.25; margin-bottom: 12px; }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); line-height: 1.3; }
p { color: var(--ink-secondary); margin-bottom: 16px; font-weight: 400; }
p strong { color: var(--ink-primary); font-weight: 600; }

a {
  color: #8FA5FF;
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: #B9C6FF;
  text-decoration: underline;
}

kbd {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-bottom: 2px solid var(--border-line-accent);
  border-radius: 6px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-primary);
  display: inline-block;
  white-space: nowrap;
}

/* Header & Nav */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(14, 14, 20, 0.85);
  border-bottom: 1px solid var(--border-line);
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 20px;
  color: var(--ink-primary);
  text-decoration: none !important;
}

.brand-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.nav-link {
  color: var(--ink-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav-link:hover {
  color: var(--ink-primary);
  text-decoration: none;
}

.nav-cta {
  color: var(--accent-color);
  border: 1px solid var(--border-line-accent);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-weight: 600;
}
.nav-cta:hover {
  color: #FFF;
  background: rgba(110, 134, 255, 0.16);
}

@media (max-width: 860px) {
  nav.main-nav { gap: 14px; }
  nav.main-nav .nav-link:not(.nav-cta) { display: none; }
}

/* Hero Section */
.hero {
  padding: 64px 0 48px;
  text-align: center;
}

.hero-tag {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-color);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-title {
  max-width: 760px;
  margin: 0 auto 16px;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--ink-secondary);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.hero-note {
  font-size: 13.5px;
  color: var(--ink-muted);
  margin-bottom: 44px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--accent-color);
  color: #08080C;
}
.btn-primary:hover {
  background: #899DFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(110, 134, 255, 0.4);
}

.btn-secondary {
  background: var(--surface-card);
  border-color: var(--border-line);
  color: var(--ink-primary);
}
.btn-secondary:hover {
  background: var(--surface-card-hover);
  border-color: var(--border-line-accent);
  transform: translateY(-2px);
}

.btn-disabled {
  opacity: 0.75;
  cursor: default;
}

.hero-media {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-line);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background: var(--surface-card);
}

.hero-video {
  width: 100%;
  height: auto;
  display: block;
}

/* Interactive Wheel Playground */
.playground-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.playground-card {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

@media (max-width: 880px) {
  .playground-card {
    grid-template-columns: 1fr;
    padding: 20px;
  }
}

.wheel-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wheel-canvas-wrap {
  width: 100%;
  height: 100%;
  position: relative;
}

.wheel-info-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.active-slice-card {
  background: var(--surface-base);
  border: 1px solid var(--border-line-accent);
  border-radius: var(--radius-md);
  padding: 20px;
}

.active-slice-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.active-slice-desc {
  font-size: 14px;
  color: var(--ink-secondary);
  margin: 0;
}

.chord-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chord-trigger-btn {
  background: var(--surface-base);
  border: 1px solid var(--border-line);
  color: var(--ink-primary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.chord-trigger-btn:hover {
  border-color: var(--border-line-accent);
  background: var(--surface-card-hover);
}
.chord-trigger-btn.active {
  background: rgba(110, 134, 255, 0.16);
  border-color: var(--accent-color);
  color: #FFF;
}

.chord-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
}

.next-step-btn {
  margin-top: 8px;
  justify-content: center;
}

.step-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.step-prompt {
  font-size: 14.5px;
  color: var(--ink-primary);
  line-height: 1.5;
}

/* The playground panel is the interactive wheel only — the recordings live
   in one place, further up the page. */

/* Icon Inventory Section */
.icon-inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.icon-inv-card {
  border-radius: 10px;
  background: var(--surface-card);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.icon-inv-card .fluent-icon {
  font-size: 24px;
  color: #FFF;
}
.icon-inv-card span.label {
  font-size: 11.5px;
  font-weight: 500;
  color: #C4C4D2;
}
.icon-inv-card span.code {
  font-size: 10px;
  font-family: var(--font-mono);
  color: #5E5E70;
}

/* Tutorial Section */
.tutorial-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
}

.tutorial-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 36px;
}

.step-card {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 24px;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(110, 134, 255, 0.15);
  border: 1px solid var(--border-line-accent);
  color: var(--accent-color);
  font-weight: 700;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content h3 {
  margin-bottom: 6px;
}

.step-media {
  margin-top: 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-line);
  background: var(--surface-base);
  max-width: 640px;
}

.step-content p:last-child { margin-bottom: 0; }

/* Features & Clips Grid */
.features-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--border-line-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(110, 134, 255, 0.15);
}

.feature-icon {
  font-size: 24px;
  margin-bottom: 14px;
}

.feature-card img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-top: auto;
  border: 1px solid var(--border-line);
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.feature-card-text .feature-list {
  margin: 4px 0 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 14.5px;
  color: var(--ink-secondary);
}
.feature-card-text .feature-list li::marker { color: var(--accent-color); }
.feature-card-text .feature-list strong { color: var(--ink-primary); }

.icons-section { padding: 72px 0; }

/* Recorded clips */
.clips-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
  background: radial-gradient(100% 80% at 50% 0%, rgba(23, 27, 49, 0.45) 0%, transparent 80%);
}

.clip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.clip-card {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 36px 24px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.clip-card:hover {
  border-color: var(--border-line-accent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(110, 134, 255, 0.12);
}

.clip-card h3 { margin: 16px 0 6px; }
.clip-card p { font-size: 14.5px; margin-bottom: 0; }

.clip-badge {
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--surface-base);
  border: 1px solid var(--border-line-accent);
  color: var(--accent-color);
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* The clip itself is a button: clicking opens the lightbox */
.clip-frame {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #05050A;
  aspect-ratio: 16 / 10;
  cursor: zoom-in;
  transition: border-color var(--transition-fast);
}
.clip-frame:hover { border-color: var(--border-line-accent); }

.clip-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.clip-expand {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(8, 8, 14, 0.82);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--ink-primary);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: var(--radius-full);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.clip-frame:hover .clip-expand,
.clip-frame:focus-visible .clip-expand { opacity: 1; transform: translateY(0); }

.clip-overlay-tag {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(8, 8, 14, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--ink-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  pointer-events: none;
}

.clip-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-line);
  font-size: 12.5px;
  color: var(--ink-muted);
}

/* Clip lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(4, 4, 8, 0.88);
  backdrop-filter: blur(10px);
}
.lightbox[hidden] { display: none; }

.lightbox-inner {
  position: relative;
  width: min(1100px, 100%);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lightbox-video {
  width: 100%;
  max-height: 76vh;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-line);
  background: #000;
  display: block;
}

.lightbox-caption {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-secondary);
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -14px;
  right: -6px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-line);
  background: var(--surface-card);
  color: var(--ink-primary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.lightbox-close:hover { background: var(--surface-card-hover); }

/* Waitlist */
.waitlist-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
}

.waitlist-card {
  background: var(--surface-card);
  border: 1px solid var(--border-line-accent);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(110, 134, 255, 0.1);
}

@media (max-width: 820px) {
  .waitlist-card { grid-template-columns: 1fr; padding: 28px 22px; gap: 24px; }
}

.waitlist-copy h2 { margin-bottom: 10px; }
.waitlist-copy p { margin-bottom: 0; font-size: 15px; }

.waitlist-form { display: flex; flex-direction: column; gap: 10px; }

.waitlist-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
}

.waitlist-row { display: flex; gap: 10px; flex-wrap: wrap; }

.waitlist-input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 13px 16px;
  background: var(--surface-base);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  color: var(--ink-primary);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.waitlist-input::placeholder { color: var(--ink-muted); }
.waitlist-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 16px var(--accent-glow);
}
.waitlist-input.invalid { border-color: #FF7A7A; }

.waitlist-submit { flex: 0 0 auto; }
.waitlist-submit[disabled] { opacity: 0.6; cursor: default; transform: none; }

@media (max-width: 520px) {
  .waitlist-submit { width: 100%; justify-content: center; }
}

.waitlist-status {
  margin: 0;
  min-height: 20px;
  font-size: 13.5px;
  color: var(--ink-muted);
}
.waitlist-status.ok { color: var(--running-green); }
.waitlist-status.error { color: #FF9A9A; }

/* FAQ Section */
.faq-section {
  padding: 72px 0;
  border-top: 1px solid var(--border-line);
}

.faq-search-box {
  max-width: 540px;
  margin: 0 auto 32px;
}

.faq-search-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-full);
  color: var(--ink-primary);
  font-size: 15px;
  outline: none;
  transition: all var(--transition-fast);
}
.faq-search-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 16px var(--accent-glow);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  padding: 20px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-chevron {
  transition: transform var(--transition-fast);
  color: var(--ink-muted);
}
.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-color);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 22px;
  background: var(--surface-base);
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 18px 22px 22px;
  border-top: 1px solid var(--border-line);
}

/* Footer */
footer.site-footer {
  padding: 48px 0 36px;
  border-top: 1px solid var(--border-line);
  background: var(--surface-base);
  color: var(--ink-muted);
  font-size: 14px;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-title { margin: 0; font-weight: 600; color: var(--ink-primary); }
.footer-sub { margin: 4px 0 0; font-size: 13px; color: var(--ink-muted); }
.footer-links { display: flex; gap: 20px; font-size: 14px; flex-wrap: wrap; }

:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  /* Clips do not autoplay; the poster stands in until the viewer asks for motion. */
  .clip-expand { opacity: 1; transform: none; }
}