/* ============================================================
   Offlamp — Landing Page Styles
   ============================================================ */

/* -- Design Tokens ------------------------------------------ */
:root {
  --color-background: #0A0A0F;
  --color-surface: #141420;
  --color-surface-light: #1E1E2E;
  --color-text-primary: #C0C0CC;
  --color-text-secondary: #6A6A7A;
  --color-text-muted: #3A3A4C;
  --color-accent: #6C63FF;
  --color-accent-dim: #3A3560;

  --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro", system-ui, sans-serif;

  --duration-crossfade: 0.8s;
  --duration-controls-appear: 0.4s;
  --duration-controls-hide: 0.6s;
  --duration-content-fade-in: 1.0s;
  --duration-card-slide: 0.8s;

  --ease-crossfade: ease-in-out;
  --ease-controls-appear: ease-out;
  --ease-controls-hide: ease-in;
}

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

html, body {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body.no-scroll {
  overflow: hidden;
}

body {
  font-family: var(--font-stack);
  background: var(--color-background);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

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

button {
  background: none;
  border: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* -- App Container ------------------------------------------ */
.app {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

/* -- Background Layer --------------------------------------- */
.background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.background__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--duration-crossfade) var(--ease-crossfade);
}

.background__image.is-visible {
  opacity: 1;
}

.background__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 30%,
    var(--color-background) 85%
  );
}

/* -- Story Card --------------------------------------------- */
.story-card {
  position: absolute;
  bottom: 80px;
  left: 24px;
  right: 24px;
  z-index: 10;
  opacity: 0;
  transform: translateX(0);
  transition:
    opacity var(--duration-crossfade) var(--ease-crossfade),
    transform var(--duration-card-slide) var(--ease-crossfade);
}

.story-card.is-visible {
  opacity: 1;
}

.story-card.slide-out-left {
  transform: translateX(-400px);
  opacity: 0;
}

.story-card.slide-out-right {
  transform: translateX(400px);
  opacity: 0;
}

.story-card.slide-in-left {
  transform: translateX(-60px);
  opacity: 0;
}

.story-card.slide-in-right {
  transform: translateX(60px);
  opacity: 0;
}

.story-card__topic-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.story-card__topic {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.story-card__current-time {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.8px;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

.story-card__title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.2px;
  color: var(--color-text-primary);
  line-height: 1.3;
}

/* -- Controls Overlay --------------------------------------- */
.controls {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-controls-hide) var(--ease-controls-hide);
}

.controls.is-visible {
  opacity: 1;
  pointer-events: auto;
  transition: opacity var(--duration-controls-appear) var(--ease-controls-appear);
}

.controls__play-pause {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(10, 10, 15, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.2s ease;
}

.controls__play-pause:active {
  transform: scale(0.92);
}

.controls__play-pause svg {
  width: 28px;
  height: 28px;
  fill: var(--color-text-primary);
}

.controls__skip {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.controls__skip:active {
  transform: scale(0.88);
}

.controls__skip svg {
  width: 28px;
  height: 28px;
  fill: var(--color-text-secondary);
}

.controls__skip--prev {
  margin-right: 24px;
}

.controls__skip--next {
  margin-left: 24px;
}

.controls__remaining {
  position: absolute;
  bottom: 36px;
  right: 24px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

/* -- App Store Badge ---------------------------------------- */
.app-store-badge {
  position: absolute;
  top: max(env(safe-area-inset-top, 16px), 16px);
  right: 16px;
  z-index: 30;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.app-store-badge:hover {
  opacity: 1;
}

.app-store-badge img {
  height: 36px;
  width: auto;
  display: block;
}

/* -- Footer ------------------------------------------------- */
.footer {
  position: absolute;
  bottom: 16px;
  left: 0;
  right: 0;
  z-index: 25;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.footer a {
  transition: color 0.3s ease;
}

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

.footer__separator {
  opacity: 0.5;
}

/* -- Tap Zone (removed — handled via .app click delegate) --- */

/* -- Loading State ------------------------------------------ */
.loading {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  transition: opacity 0.6s ease-in-out;
}

.loading.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.loading__text {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* -- Initial Fade-In ---------------------------------------- */
.fade-in {
  opacity: 0;
  transition: opacity var(--duration-content-fade-in) var(--ease-crossfade);
}

.fade-in.is-visible {
  opacity: 1;
}

/* -- Responsive --------------------------------------------- */
@media (min-width: 768px) {
  .story-card {
    max-width: 480px;
  }

  .story-card__title {
    font-size: 26px;
  }

  .controls__play-pause {
    width: 80px;
    height: 80px;
  }

  .controls__play-pause svg {
    width: 32px;
    height: 32px;
  }
}

@media (min-width: 1024px) {
  .story-card {
    left: 48px;
    bottom: 100px;
  }

  .controls__remaining {
    right: 48px;
  }

  .app-store-badge {
    right: 24px;
  }

  .app-store-badge img {
    height: 40px;
  }
}

/* -- Privacy Page ------------------------------------------- */
.privacy {
  min-height: 100%;
  overflow: auto;
  background: var(--color-background);
  padding: 48px 24px 64px;
}

.privacy__inner {
  max-width: 640px;
  margin: 0 auto;
}

.privacy__back {
  display: inline-block;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  transition: color 0.3s ease;
}

.privacy__back:hover {
  color: var(--color-text-primary);
}

.privacy h1 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.2px;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.privacy__updated {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
}

.privacy h2 {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-top: 32px;
  margin-bottom: 12px;
}

.privacy p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.privacy a {
  color: var(--color-accent);
  transition: opacity 0.3s ease;
}

.privacy a:hover {
  opacity: 0.8;
}

.privacy ul {
  list-style: none;
  margin-bottom: 16px;
}

.privacy ul li {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  padding-left: 16px;
  position: relative;
}

.privacy ul li::before {
  content: "\2022";
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}