/* ============================================
   CompSesh Landing Page — styles.css
   Dark theme, Space Grotesk, mobile-first
   ============================================ */

/* -------------------------
   CSS Custom Properties
   ------------------------- */
:root {
  --color-brand: #C84332;
  --color-brand-dark: #A83828;
  --color-brand-light: #D4554A;

  --color-bg: #141B2D;
  --color-surface: #1C3654;

  --color-text: #D9D3C3;
  --color-text-secondary: rgba(217, 211, 195, 0.6);

  --color-border: transparent;
  --color-border-light: transparent;

  --color-yellow: #FFBC49;
  --color-mint: #46FFD9;
  --color-red: #C84332;
  --color-gold: #E6C530;
  --color-aqua: #35F2E4;
  --color-blue-deep: #103755;
  --color-purple-deep: #1C3654;

  --font-main: 'Space Grotesk', sans-serif;

  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 100px;

  --spacing-section: 140px;
  --spacing-section-mobile: 80px;

  --container-max: 1120px;
  --container-padding: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

strong {
  font-weight: 700;
}

/* -------------------------
   Utility Classes
   ------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.text-yellow { color: var(--color-yellow); }
.text-mint { color: var(--color-mint); }
.text-aqua { color: var(--color-aqua); }
.text-purple { color: var(--color-brand); }
.text-gold { color: var(--color-gold); }

/* -------------------------
   Reveal Animation
   ------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--delay-1 { transition-delay: 0.12s; }
.reveal--delay-2 { transition-delay: 0.24s; }
.reveal--delay-3 { transition-delay: 0.36s; }

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------------
   Navigation
   ------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav--scrolled {
  background-color: rgba(20, 27, 45, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__crown {
  flex-shrink: 0;
  height: 24px;
  width: auto;
}

.nav__wordmark {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

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

.nav__cta {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 10px 24px;
  background-color: var(--color-brand);
  border-radius: var(--radius-pill);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.nav__cta:hover {
  background-color: var(--color-brand-light);
  transform: translateY(-1px);
}

/* -------------------------
   Hero Section
   ------------------------- */
.hero {
  padding: 160px 0 var(--spacing-section);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero__platforms {
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* App Store Badge */
.app-store-badge {
  display: inline-block;
  transition: transform 0.2s ease, opacity 0.2s ease;
  border-radius: 12px;
}

.app-store-badge:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

/* -------------------------
   Phone Mockup
   ------------------------- */
.phone-mockup {
  display: flex;
  justify-content: center;
}

.phone-mockup__frame {
  position: relative;
  width: 280px;
  height: 572px;
  background: #0D0D0D;
  border-radius: 40px;
  overflow: hidden;
  box-shadow:
    0 40px 80px rgba(0, 0, 0, 0.5),
    0 16px 32px rgba(0, 0, 0, 0.3);
}

.phone-mockup__notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: #0D0D0D;
  border-radius: 0 0 20px 20px;
  z-index: 2;
}

.phone-mockup__screen {
  width: 100%;
  height: 100%;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-mockup__screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-mockup__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.phone-mockup--small .phone-mockup__frame {
  width: 240px;
  height: 490px;
  border-radius: 36px;
}

.phone-mockup--small .phone-mockup__notch {
  width: 100px;
  height: 24px;
}

/* -------------------------
   Sections — Common
   ------------------------- */
.section {
  padding: var(--spacing-section) 0;
}

.section__label {
  margin-bottom: 20px;
}

.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(200, 67, 50, 0.2);
  color: var(--color-brand-light);
}

.badge--mint {
  background: rgba(70, 255, 217, 0.15);
  color: var(--color-mint);
}

.badge--yellow {
  background: rgba(255, 188, 73, 0.15);
  color: var(--color-yellow);
}

.badge--aqua {
  background: rgba(53, 242, 228, 0.15);
  color: var(--color-aqua);
}

.section__title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.section__title--center {
  text-align: center;
}

.section__subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 48px;
}

.section__subtitle--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* -------------------------
   Feature Flow (Multiplayer Steps)
   ------------------------- */
.feature-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.feature-flow__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
}

.feature-flow__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(200, 67, 50, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-flow__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.feature-flow__connector {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, rgba(200, 67, 50, 0.4), rgba(200, 67, 50, 0.1));
  flex-shrink: 0;
  margin-top: -22px;
}

/* -------------------------
   Feature Cards (Multiplayer)
   ------------------------- */
.multiplayer-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.feature-card--highlight {
  background: linear-gradient(135deg, rgba(200, 67, 50, 0.12), var(--color-surface));
}

.feature-card__accent {
  position: absolute;
  top: 0;
  left: 32px;
  right: 32px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-brand), transparent);
  border-radius: 0 0 2px 2px;
}

.feature-card__title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.feature-card__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* -------------------------
   Section Split (Content + Phone)
   ------------------------- */
.section-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.section-split--reverse {
  direction: rtl;
}

.section-split--reverse > * {
  direction: ltr;
}

/* -------------------------
   Feature List (Solo Section)
   ------------------------- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.feature-list__icon {
  flex-shrink: 0;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  margin-top: 2px;
}

/* -------------------------
   Offline Banner
   ------------------------- */
.offline-banner {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 64px;
  padding: 28px 32px;
  background: rgba(70, 255, 217, 0.06);
  border-radius: var(--radius-md);
}

.offline-banner__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(70, 255, 217, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.offline-banner__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* -------------------------
   Stat Grid (Stats Section)
   ------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: 24px;
  text-align: center;
}

.stat-card__value {
  display: block;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.stat-card__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* -------------------------
   Stats Feature Cards
   ------------------------- */
.stats-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.stats-feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.3s ease;
}

.stats-feature-card:hover {
  transform: translateY(-2px);
}

.stats-feature-card__icon {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.stats-feature-card__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.stats-feature-card__text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

/* -------------------------
   Social Grid
   ------------------------- */
.social-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.social-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: transform 0.3s ease;
}

.social-card:hover {
  transform: translateY(-2px);
}

.social-card__icon {
  margin-bottom: 16px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(53, 242, 228, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-card__title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 8px;
}

.social-card__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* -------------------------
   How It Works — Steps
   ------------------------- */
.section--how {
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.step {
  position: relative;
  padding: 32px 24px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

.step:hover {
  transform: translateY(-2px);
}

.step__number {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -2px;
  color: rgba(200, 67, 50, 0.3);
  margin-bottom: 16px;
  line-height: 1;
}

.step__title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.step__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* -------------------------
   Final CTA
   ------------------------- */
.section--cta {
  padding: var(--spacing-section) 0;
}

.cta-block {
  text-align: center;
  padding: 80px 48px;
  background: linear-gradient(135deg, rgba(200, 67, 50, 0.12), var(--color-surface));
  border-radius: var(--radius-lg);
}

.cta-block__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.cta-block__subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-block__actions {
  margin-bottom: 20px;
}

.cta-block__note {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* -------------------------
   Footer
   ------------------------- */
.footer {
  padding: 48px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer__tagline {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.footer__links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__link {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

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

.footer__copy {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ============================================
   RESPONSIVE — Tablet (768px)
   ============================================ */
@media (max-width: 960px) {
  :root {
    --spacing-section: 100px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .section-split {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .section-split--reverse {
    direction: ltr;
  }

  .section-split__visual {
    order: -1;
  }

  .stats-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .feature-flow__connector {
    width: 24px;
  }
}

/* ============================================
   RESPONSIVE — Mobile (480px)
   ============================================ */
@media (max-width: 600px) {
  :root {
    --spacing-section: var(--spacing-section-mobile);
    --container-padding: 20px;
  }

  .nav__links {
    gap: 16px;
  }

  .nav__link {
    display: none;
  }

  .hero {
    padding: 120px 0 var(--spacing-section);
    min-height: auto;
  }

  .hero__title {
    font-size: 36px;
    letter-spacing: -1px;
  }

  .hero__subtitle {
    font-size: 16px;
  }

  .phone-mockup__frame {
    width: 220px;
    height: 450px;
    border-radius: 32px;
  }

  .phone-mockup__notch {
    width: 90px;
    height: 22px;
  }

  .phone-mockup--small .phone-mockup__frame {
    width: 200px;
    height: 408px;
    border-radius: 28px;
  }

  .multiplayer-cards {
    grid-template-columns: 1fr;
  }

  .feature-flow {
    flex-direction: column;
    gap: 8px;
  }

  .feature-flow__connector {
    width: 2px;
    height: 20px;
    margin-top: 0;
    background: linear-gradient(180deg, rgba(200, 67, 50, 0.4), rgba(200, 67, 50, 0.1));
  }

  .social-grid {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stats-features {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step {
    padding: 24px 20px;
  }

  .step__number {
    font-size: 36px;
  }

  .offline-banner {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .cta-block {
    padding: 48px 24px;
  }

  .section__title {
    font-size: 28px;
  }

  .section__subtitle {
    font-size: 16px;
  }

  .footer__links {
    gap: 20px;
  }
}