/* ==========================================================================
   Components — Glassy Comics Landing Page
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-sticky);
  background: var(--color-surface);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration-base) var(--ease-soft),
              box-shadow var(--duration-base) var(--ease-soft);
}

.nav.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
}

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

.nav__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
}

.nav__icon--dark  { display: none; }
.nav__icon--light { display: block; }

@media (prefers-color-scheme: dark) {
  .nav__icon--dark  { display: block; }
  .nav__icon--light { display: none; }
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: opacity var(--duration-fast) var(--ease-soft);
}

.nav__cta:hover {
  opacity: 0.85;
  color: var(--color-bg);
}

.nav__cta svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-20));
  padding-bottom: var(--space-16);
  text-align: center;
  overflow: hidden;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent-text);
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent);
  border-color: rgba(217, 119, 6, 0.2);
  border-radius: var(--radius-full);
}

@media (prefers-color-scheme: dark) {
  .hero__badge {
    border-color: rgba(245, 158, 11, 0.25);
  }
}

.hero__title {
  font-size: var(--text-6xl);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, #f97316 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

.hero__devices::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(ellipse at center, var(--mesh-amber) 0%, transparent 70%);
  z-index: -1;
  filter: blur(40px);
}

@media (max-width: 768px) {
  .hero {
    padding-top: calc(var(--nav-height) + var(--space-12));
    padding-bottom: var(--space-10);
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .hero__subtitle {
    font-size: var(--text-lg);
  }

  .hero__devices {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--text-3xl);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }
}

/* ==========================================================================
   App Store Badge
   ========================================================================== */
.appstore-badge {
  display: inline-flex;
  height: 52px;
  transition: opacity var(--duration-fast) var(--ease-soft),
              transform var(--duration-fast) var(--ease-soft);
}

.appstore-badge:hover {
  opacity: 0.85;
  transform: scale(1.03);
}

.appstore-badge img {
  height: 100%;
  width: auto;
}

/* ==========================================================================
   Device Frame
   ========================================================================== */
.device {
  background: var(--device-bezel);
  border-radius: var(--radius-2xl);
  padding: 10px;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  position: relative;
}

.device--landscape {
  border-radius: var(--radius-xl);
  padding: 8px;
}

.device--phone {
  border-radius: var(--radius-xl);
  padding: 6px;
}

.device img {
  border-radius: calc(var(--radius-2xl) - 6px);
  width: 100%;
  display: block;
}

.device--landscape img {
  border-radius: calc(var(--radius-xl) - 5px);
}

.device--phone img {
  border-radius: calc(var(--radius-xl) - 4px);
}

/* ==========================================================================
   Hero Dual-Device Layout
   ========================================================================== */
.hero__devices {
  position: relative;
  max-width: 840px;
  margin-inline: auto;
  padding-bottom: var(--space-8);
}

.hero__devices .device:first-child {
  max-width: 680px;
  margin-inline: auto;
}

.hero__devices .device--phone {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 190px;
  z-index: 2;
  box-shadow: var(--shadow-xl), var(--shadow-glow),
              -8px 0 30px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
  .hero__devices {
    max-width: 100%;
    padding-bottom: var(--space-4);
  }

  .hero__devices .device:first-child {
    max-width: 100%;
  }

  .hero__devices .device--phone {
    width: 120px;
    right: -4px;
    bottom: -4px;
  }
}

@media (max-width: 480px) {
  .hero__devices .device--phone {
    width: 100px;
  }
}

/* ==========================================================================
   Device Pair (side-by-side in feature sections)
   ========================================================================== */
.device-pair {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  justify-content: center;
}

.device-pair .device:first-child {
  flex: 1;
  min-width: 0;
}

.device-pair .device--phone {
  flex: 0 0 160px;
}

@media (max-width: 900px) {
  .device-pair {
    max-width: 560px;
    margin-inline: auto;
  }

  .device-pair .device--phone {
    flex: 0 0 130px;
  }
}

@media (max-width: 480px) {
  .device-pair .device--phone {
    flex: 0 0 100px;
  }

  .device-pair {
    gap: var(--space-3);
  }
}

/* ==========================================================================
   Formats Ribbon
   ========================================================================== */
.formats {
  padding-block: var(--space-16);
  text-align: center;
}

.formats__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.formats__subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  margin-inline: auto;
}

.formats__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  max-width: 640px;
  margin-inline: auto;
}

.formats__tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: border-color var(--duration-fast) var(--ease-soft),
              color var(--duration-fast) var(--ease-soft),
              background var(--duration-fast) var(--ease-soft);
}

.formats__tag:hover {
  color: var(--color-accent-text);
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

@media (max-width: 480px) {
  .formats__list {
    gap: var(--space-2);
  }

  .formats__tag {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
  }
}

/* ==========================================================================
   Feature Section (alternating image + text)
   ========================================================================== */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.feature--reverse {
  direction: rtl;
}

.feature--reverse > * {
  direction: ltr;
}

.feature__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.feature__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
}

.feature__title {
  font-size: var(--text-3xl);
  letter-spacing: var(--tracking-tight);
}

.feature__desc {
  font-size: var(--text-lg);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
}

.feature__visual {
  position: relative;
}

.feature__visual .device {
  max-width: 100%;
}

.feature__visual > .device--phone {
  max-width: 300px;
  margin-inline: auto;
}

@media (max-width: 900px) {
  .feature {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }

  .feature--reverse {
    direction: ltr;
  }

  .feature__content {
    align-items: center;
  }

  .feature__desc {
    margin-inline: auto;
  }

  .feature__visual .device {
    max-width: 480px;
    margin-inline: auto;
  }

  .feature__visual .device--landscape {
    max-width: 100%;
  }
}

/* ==========================================================================
   Feature Grid (icon cards)
   ========================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--duration-base) var(--ease-soft),
              transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-soft);
}

.feature-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: var(--radius-lg);
}

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

.feature-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: var(--space-6);
  }
}

/* ==========================================================================
   Privacy Section
   ========================================================================== */
.privacy {
  text-align: center;
}

.privacy__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: var(--space-6);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: var(--radius-full);
}

.privacy__icon svg {
  width: 28px;
  height: 28px;
}

.privacy__title {
  margin-bottom: var(--space-4);
}

.privacy__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 540px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.privacy__points {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.privacy__point {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.privacy__point svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta {
  text-align: center;
  position: relative;
}

.cta::before {
  content: "";
  position: absolute;
  inset: -100px;
  background: radial-gradient(ellipse at center bottom, var(--mesh-amber) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.cta__title {
  margin-bottom: var(--space-4);
}

.cta__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cta__devices {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-4);
  max-width: none;
}

/* ==========================================================================
   Divider
   ========================================================================== */
.divider {
  height: 1px;
  border: none;
  background: var(--color-border);
  max-width: var(--container-max);
  margin-inline: auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding-block: var(--space-10);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copy {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  transition: color var(--duration-fast) var(--ease-soft);
}

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

@media (max-width: 560px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   Section Header (shared)
   ========================================================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header__label {
  display: inline-flex;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-header__title {
  margin-bottom: var(--space-4);
}

.section-header__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-inline: auto;
}