/* ================================================================
 * BITTOKEN MINING LANDING PAGE — CUSTOM STYLESHEET
 * Creative Time Center
 * ================================================================
 * Version:     2.0.0
 * Description: All design tokens live in :root custom properties.
 *              Dark crypto-electric aesthetic: deep black base,
 *              electric orange accents, gold highlights, subtle
 *              cyan glow effects.
 *
 * TABLE OF CONTENTS
 * ─────────────────
 *  01. CSS Custom Properties (:root)
 *  02. Reset & Base
 *  03. Typography
 *  04. Utility Classes
 *  05. Preloader
 *  06. Header / Navigation
 *  07. Hero Section
 *  08. Video Section
 *  09. Steps Section
 *  10. Platforms Section
 *  11. Features Section
 *  12. Incentives Section
 *  13. Call-to-Action Section
 *  14. FAQ Section
 *  15. Footer
 *  16. Back-to-Top Button
 *  17. Store Buttons
 *  18. Shared Components (section headers, cards, badges)
 *  19. Animations & Keyframes
 *  20. Responsive Overrides
 * ================================================================ */

/* ================================================================
 * 01. CSS CUSTOM PROPERTIES — Edit these to retheme the site
 * ================================================================ */
:root {
  /* ── Brand colours ───────────────────────────────────────── */
  --color-primary: #f4813f; /* Warm orange (main brand) */
  --color-primary-dark: #e05c14; /* Darker hover state       */
  --color-primary-light: #f9a96e; /* Lighter tint             */
  --color-accent-gold: #f5c842; /* Gold highlight           */
  --color-accent-cyan: #00d4ff; /* Cyan glow / tech accent  */
  --color-accent-green: #22c55e; /* Success / verified green */

  /* ── Background layers ───────────────────────────────────── */
  --color-bg-base: #0a0b0f; /* Deepest background       */
  --color-bg-surface: #111218; /* Card / section surface   */
  --color-bg-raised: #1a1c24; /* Elevated card            */
  --color-bg-border: #2a2d3a; /* Subtle borders           */
  --color-bg-hover: #20232e; /* Hover state backgrounds  */

  /* ── Text ────────────────────────────────────────────────── */
  --color-text-primary: #f0f2f8; /* Main body text           */
  --color-text-secondary: #9299b0; /* Muted / supporting text  */
  --color-text-muted: #5a6070; /* Disabled / placeholder   */
  --color-text-inverted: #0a0b0f; /* Text on light surfaces   */

  /* ── Gradients ───────────────────────────────────────────── */
  --gradient-brand: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-accent-gold) 100%
  );
  --gradient-glow: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-accent-cyan) 100%
  );
  --gradient-dark: linear-gradient(
    180deg,
    var(--color-bg-base) 0%,
    #0e1018 100%
  );
  --gradient-card: linear-gradient(
    145deg,
    var(--color-bg-surface) 0%,
    var(--color-bg-raised) 100%
  );
  --gradient-hero-bg: radial-gradient(
    ellipse 80% 60% at 50% -10%,
    rgba(244, 129, 63, 0.25) 0%,
    transparent 70%
  );

  /* ── Typography ──────────────────────────────────────────── */
  --font-display: "Syne", sans-serif; /* Display/headings   */
  --font-body: "Outfit", sans-serif; /* Body copy          */
  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-md: 1.125rem; /* 18px */
  --font-size-lg: 1.25rem; /* 20px */
  --font-size-xl: 1.5rem; /* 24px */
  --font-size-2xl: 2rem; /* 32px */
  --font-size-3xl: 2.75rem; /* 44px */
  --font-size-4xl: 3.5rem; /* 56px */

  /* ── Spacing ─────────────────────────────────────────────── */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --section-gap: 6rem;

  /* ── Borders & Radius ────────────────────────────────────── */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-pill: 9999px;
  --border-color: var(--color-bg-border);
  --border-glow: 1px solid rgba(244, 129, 63, 0.35);

  /* ── Shadows & Glows ─────────────────────────────────────── */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
  --shadow-primary: 0 4px 30px rgba(244, 129, 63, 0.35);
  --glow-primary: 0 0 40px rgba(244, 129, 63, 0.2);
  --glow-cyan: 0 0 40px rgba(0, 212, 255, 0.15);

  /* ── Transitions ─────────────────────────────────────────── */
  --ease-fast: 0.15s ease;
  --ease-base: 0.3s ease;
  --ease-slow: 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);

  /* ── Z-index layers ──────────────────────────────────────── */
  --z-below: -1;
  --z-base: 0;
  --z-raised: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-preloader: 9999;
}

/* ================================================================
 * 02. RESET & BASE
 * ================================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--ease-fast);
}

a:hover {
  color: var(--color-primary-light);
}

img {
  max-width: 100%;
  height: auto;
}

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-body);
}

/* ================================================================
 * 03. TYPOGRAPHY
 * ================================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, var(--font-size-4xl));
}
h2 {
  font-size: clamp(1.6rem, 3.5vw, var(--font-size-3xl));
}
h3 {
  font-size: clamp(1.3rem, 2.5vw, var(--font-size-2xl));
}
h4 {
  font-size: clamp(1.1rem, 2vw, var(--font-size-xl));
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-base);
}

p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.75;
}

strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

em {
  color: var(--color-primary);
  font-style: normal;
}

/* ================================================================
 * 04. UTILITY CLASSES
 * ================================================================ */

/* Gradient text effect */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section shared spacing */
.section-gap {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

/* Section eyebrow / overline label */
.section-eyebrow {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(244, 129, 63, 0.12);
  border: 1px solid rgba(244, 129, 63, 0.3);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, var(--font-size-3xl));
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* Shared mt for second/third step blocks */
.mt-section {
  margin-top: var(--space-3xl);
}

/* divider line */
.section-divider {
  border: none;
  border-top: 1px solid var(--color-bg-border);
  margin: var(--section-gap) 0;
}

/* ================================================================
 * 05. PRELOADER
 * ================================================================ */
#preloader {
  position: fixed;
  inset: 0;
  background: var(--color-bg-base);
  z-index: var(--z-preloader);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity 0.6s ease,
    visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  text-align: center;
}

.preloader-logo img {
  animation: preloaderPulse 1.4s ease-in-out infinite;
}

.preloader-bar {
  width: 180px;
  height: 3px;
  background: var(--color-bg-border);
  border-radius: var(--radius-pill);
  margin: var(--space-lg) auto var(--space-md);
  overflow: hidden;
}

.preloader-fill {
  height: 100%;
  width: 0;
  background: var(--gradient-brand);
  border-radius: var(--radius-pill);
  animation: preloaderBar 2s ease-in-out forwards;
}

.preloader-text {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@keyframes preloaderPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(0.92);
    opacity: 0.7;
  }
}

@keyframes preloaderBar {
  0% {
    width: 0;
  }
  60% {
    width: 80%;
  }
  100% {
    width: 100%;
  }
}

/* ================================================================
 * 06. HEADER / NAVIGATION
 * ================================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: 0;
  transition:
    background var(--ease-base),
    box-shadow var(--ease-base),
    padding var(--ease-base);
}

.site-header .navbar {
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
  transition: padding var(--ease-base);
}

/* Scrolled state — added by JS */
.site-header.scrolled {
  background: rgba(10, 11, 15, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow:
    0 1px 0 var(--color-bg-border),
    var(--shadow-md);
}

.site-header.scrolled .navbar {
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

/* Brand */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-primary) !important;
}

.navbar-brand img {
  flex-shrink: 0;
  max-height: 25px;
  width: auto;
}

.brand-name {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 800;
  letter-spacing: 0.06em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav links */
.navbar-nav .nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary) !important;
  padding: 0.4rem 0.8rem !important;
  border-radius: var(--radius-sm);
  transition:
    color var(--ease-fast),
    background var(--ease-fast);
  letter-spacing: 0.02em;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-text-primary) !important;
  background: rgba(244, 129, 63, 0.1);
}

/* Mobile toggler */
.navbar-toggler {
  background: none;
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toggler-icon {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  transition: all var(--ease-base);
}

/* Push down page content below fixed header */
body {
  padding-top: 80px;
}

/* ================================================================
 * 07. HERO SECTION
 * ================================================================ */
.hero-section {
  position: relative;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-base);
  padding: var(--space-3xl) 0;
}

/* Animated dot-grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(244, 129, 63, 0.08) 1px,
    transparent 1px
  );
  background-size: 36px 36px;
  pointer-events: none;
  z-index: var(--z-base);
}

/* Warm radial glow at top */
.hero-section::before {
  content: "";
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(
    ellipse,
    rgba(244, 129, 63, 0.18) 0%,
    transparent 65%
  );
  pointer-events: none;
  z-index: var(--z-base);
}

.hero-container {
  position: relative;
  z-index: var(--z-raised);
}

/* Hero badge / live pill */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  background: rgba(0, 212, 255, 0.07);
  border: 1px solid rgba(0, 212, 255, 0.25);
  padding: 5px 16px;
  border-radius: var(--radius-pill);
}

.pulse-dot {
  color: var(--color-accent-green);
  animation: pulseDot 1.8s ease-in-out infinite;
  font-size: 8px;
}

@keyframes pulseDot {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.6);
  }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, var(--font-size-4xl));
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 480px;
  line-height: 1.75;
}

/* Trust badges row */
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-bg-border);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}

.trust-badge i {
  color: var(--color-accent-green);
}

/* Hero mockup wrapper */
.hero-mockup {
  position: relative;
  display: inline-block;
}

.hero-img {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-xl);
  filter: drop-shadow(0 20px 60px rgba(244, 129, 63, 0.3));
  animation: heroFloat 5s ease-in-out infinite;
  max-height: 500px;
  object-fit: contain;
}

@keyframes heroFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(244, 129, 63, 0.22) 0%,
    transparent 70%
  );
  z-index: 1;
  filter: blur(30px);
  animation: heroGlowPulse 4s ease-in-out infinite;
}

@keyframes heroGlowPulse {
  0%,
  100% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

/* Stats bar */
.stat-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  transition:
    border-color var(--ease-base),
    box-shadow var(--ease-base);
}

.stat-card:hover {
  border-color: rgba(244, 129, 63, 0.4);
  box-shadow: var(--glow-primary);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.stat-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ================================================================
 * 08. VIDEO SECTION
 * ================================================================ */
.section-video {
  background: var(--color-bg-surface);
}

.video-wrapper {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: box-shadow var(--ease-base);
}

.video-wrapper:hover {
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

/* Fake browser chrome bar */
.video-chrome {
  background: var(--color-bg-border);
  padding: 10px 16px;
  display: flex;
  gap: 6px;
  align-items: center;
}

.video-chrome span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.video-chrome span:nth-child(1) {
  background: #ff5f57;
}
.video-chrome span:nth-child(2) {
  background: #febc2e;
}
.video-chrome span:nth-child(3) {
  background: #28c840;
}

.video-wrapper .ratio {
  border-radius: 0 0 calc(var(--radius-xl) - 1px) calc(var(--radius-xl) - 1px);
}

/* ================================================================
 * 09. STEPS SECTION
 * ================================================================ */
.section-steps {
  background: var(--color-bg-base);
}

/* Step pills navigation */
.step-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.step-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-bg-border);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  transition: all var(--ease-base);
}

.step-pill span {
  font-size: 10px;
  font-weight: 400;
  opacity: 0.6;
}

.step-pill:hover {
  color: var(--color-primary);
  border-color: rgba(244, 129, 63, 0.5);
  background: rgba(244, 129, 63, 0.08);
}

/* Step number label row */
.step-number-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  border-bottom: 1px solid var(--color-bg-border);
  padding-bottom: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.big-step-num {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.25;
  flex-shrink: 0;
  user-select: none;
}

.step-heading {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-xs);
}

.step-desc {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Step card */
.step-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  height: 100%;
  position: relative;
  overflow: hidden;
  transition:
    border-color var(--ease-base),
    transform var(--ease-base),
    box-shadow var(--ease-base);
}

.step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease-base);
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(244, 129, 63, 0.35);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

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

/* Highlighted step card (referral / register) */
.highlight-card {
  border-color: rgba(244, 129, 63, 0.45);
  background: linear-gradient(
    145deg,
    rgba(244, 129, 63, 0.08) 0%,
    var(--color-bg-raised) 100%
  );
}

.highlight-card::before {
  opacity: 1;
}

/* Icon circles */
.step-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  flex-shrink: 0;
}

.step-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.step-card p {
  font-size: var(--font-size-sm);
  margin: 0;
}

.step-card-link {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-md);
  transition: gap var(--ease-fast);
}

.step-card-link:hover {
  gap: 8px;
  color: var(--color-primary-light);
}

/* Icon colour themes */
.telegram-icon {
  background: rgba(41, 182, 246, 0.15);
  color: #29b6f6;
}
.gmail-icon {
  background: rgba(234, 67, 53, 0.15);
  color: #ea4335;
}
.ref-icon {
  background: rgba(244, 129, 63, 0.15);
  color: var(--color-primary);
}
.register-icon {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}
.android-icon {
  background: rgba(61, 220, 132, 0.15);
  color: #3ddc84;
}
.ios-icon {
  background: rgba(210, 210, 210, 0.1);
  color: #e8e8e8;
}
.claim-icon {
  background: rgba(245, 200, 66, 0.15);
  color: var(--color-accent-gold);
}
.earn-icon {
  background: rgba(244, 129, 63, 0.15);
  color: var(--color-primary);
}
.cashout-icon {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}
.stake-icon {
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent-cyan);
}
.p2p-icon {
  background: rgba(167, 139, 250, 0.15);
  color: #a78bfa;
}

/* Referral code box */
.ref-code-box {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(244, 129, 63, 0.1);
  border: 1px dashed rgba(244, 129, 63, 0.5);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin-top: var(--space-md);
}

#refCodeDisplay {
  font-family: monospace;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  flex: 1;
}

.copy-btn {
  color: var(--color-text-secondary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--ease-fast);
  font-size: 1rem;
}

.copy-btn:hover {
  color: var(--color-primary);
  background: rgba(244, 129, 63, 0.1);
}
.copy-btn.copied {
  color: var(--color-accent-green);
}

.ref-hint {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* Step card decorative image */
.step-card-img {
  opacity: 0.85;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
  transition:
    opacity var(--ease-base),
    transform var(--ease-base);
}

.step-card:hover .step-card-img {
  opacity: 1;
  transform: scale(1.05);
}

/* ================================================================
 * 10. PLATFORMS SECTION
 * ================================================================ */
.section-platforms {
  background: var(--color-bg-surface);
}

.platform-mockup {
  position: relative;
  display: inline-block;
}

.platform-screenshot {
  /* border-radius: var(--radius-xl); */
  /* border: 0px solid var(--color-bg-border); */
  /* box-shadow: var(--shadow-lg); */
  position: relative;
  z-index: 2;
}

.platform-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(244, 129, 63, 0.15),
    transparent 70%
  );
  border-radius: 50%;
  z-index: 1;
  filter: blur(20px);
}

/* Platform list */
.platform-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.platform-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition:
    border-color var(--ease-base),
    box-shadow var(--ease-base),
    transform var(--ease-base);
}

.platform-item:hover {
  border-color: rgba(244, 129, 63, 0.4);
  box-shadow: var(--glow-primary);
  transform: translateX(4px);
}

.platform-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.android-platform {
  background: rgba(61, 220, 132, 0.15);
  color: #3ddc84;
}
.ios-platform {
  background: rgba(210, 210, 210, 0.1);
  color: #e8e8e8;
}
.web-platform {
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent-cyan);
}

.platform-text h4 {
  font-size: var(--font-size-base);
  margin-bottom: 4px;
}
.platform-text p {
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ================================================================
 * 17. STORE BUTTONS  (defined here, used in Steps & Platforms)
 * ================================================================ */
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-bg-border);
  transition: all var(--ease-base);
  text-decoration: none;
  min-width: 140px;
  flex-shrink: 0;
}

.store-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.store-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.store-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.store-text small {
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.7;
  font-weight: 500;
}

.store-text strong {
  font-size: var(--font-size-sm);
  font-weight: 700;
  line-height: 1.2;
}

/* Google Play — dark bg */
.google-btn {
  background: #1a1a1a;
  border-color: rgba(255, 255, 255, 0.15);
}

.google-btn .store-text {
  color: #fff;
}

.google-btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: #252525;
  color: #fff;
}

/* Apple App Store — black */
.apple-btn {
  background: #000;
  border-color: rgba(255, 255, 255, 0.15);
}

.apple-btn .fa-apple {
  font-size: 1.6rem;
  color: #fff;
}
.apple-btn .store-text {
  color: #fff;
}

.apple-btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: #111;
  color: #fff;
}

/* Web browser button */
.web-btn {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.3);
}

.web-btn .fa-globe {
  font-size: 1.4rem;
  color: var(--color-accent-cyan);
}
.web-btn .store-text {
  color: var(--color-text-primary);
}

.web-btn:hover {
  border-color: rgba(0, 212, 255, 0.55);
  background: rgba(0, 212, 255, 0.14);
  color: var(--color-text-primary);
  box-shadow: var(--glow-cyan);
}

/* ================================================================
 * 11. FEATURES SECTION
 * ================================================================ */
.section-features {
  background: var(--color-bg-base);
}

.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  height: 100%;
  position: relative;
  overflow: hidden;
  transition:
    border-color var(--ease-base),
    transform var(--ease-base),
    box-shadow var(--ease-base);
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease-base);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(244, 129, 63, 0.3);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

.feature-card:hover::after {
  opacity: 1;
}

.highlight-feature-card {
  border-color: rgba(245, 200, 66, 0.35);
  background: linear-gradient(
    145deg,
    rgba(245, 200, 66, 0.06) 0%,
    var(--color-bg-raised) 100%
  );
}

.highlight-feature-card::after {
  background: linear-gradient(
    90deg,
    var(--color-accent-gold),
    var(--color-primary)
  );
  opacity: 1;
}

.feature-card-top {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.feature-card-top h4 {
  margin: 0;
  font-size: var(--font-size-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.ads-feature {
  background: rgba(244, 129, 63, 0.15);
  color: var(--color-primary);
}
.invite-feature {
  background: rgba(167, 139, 250, 0.15);
  color: #a78bfa;
}
.tasks-feature {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}
.leader-feature {
  background: rgba(245, 200, 66, 0.15);
  color: var(--color-accent-gold);
}
.rp-feature {
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent-cyan);
}
.presale-feature {
  background: rgba(245, 200, 66, 0.15);
  color: var(--color-accent-gold);
}

.feature-img {
  width: 100%;
  max-height: 120px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  opacity: 0.9;
  transition: opacity var(--ease-base);
}

.feature-card:hover .feature-img {
  opacity: 1;
}

/* ================================================================
 * 12. INCENTIVES SECTION
 * ================================================================ */
.section-incentives {
  background: var(--color-bg-surface);
}

.incentive-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-bg-border);
  cursor: pointer;
  transition:
    transform var(--ease-base),
    border-color var(--ease-base),
    box-shadow var(--ease-base);
}

.incentive-card:hover {
  transform: scale(1.04) translateY(-4px);
  border-color: rgba(244, 129, 63, 0.5);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

.incentive-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  filter: brightness(0.85) saturate(0.9);
  transition:
    filter var(--ease-base),
    transform var(--ease-slow);
}

.incentive-card:hover .incentive-img {
  filter: brightness(1) saturate(1.1);
  transform: scale(1.06);
}

.incentive-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, transparent 100%);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 20px 10px 8px;
  text-align: center;
}

.incentive-label i {
  color: var(--color-primary);
}

/* ================================================================
 * 13. CALL-TO-ACTION SECTION
 * ================================================================ */
.section-cta {
  background: var(--color-bg-base);
}

.cta-card {
  background: linear-gradient(
    135deg,
    var(--color-bg-surface) 0%,
    var(--color-bg-raised) 100%
  );
  border: 1px solid rgba(244, 129, 63, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

/* Decorative circle blobs */
.cta-bg-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: inherit;
}

.cta-bg-decor span {
  position: absolute;
  border-radius: 50%;
  opacity: 0.04;
  background: var(--color-primary);
}

.cta-bg-decor span:nth-child(1) {
  width: 400px;
  height: 400px;
  top: -200px;
  right: -100px;
}
.cta-bg-decor span:nth-child(2) {
  width: 250px;
  height: 250px;
  bottom: -100px;
  left: -60px;
}
.cta-bg-decor span:nth-child(3) {
  width: 160px;
  height: 160px;
  bottom: 20px;
  right: 120px;
  background: var(--color-accent-gold);
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, var(--font-size-3xl));
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.cta-subtitle {
  font-size: var(--font-size-md);
  max-width: 500px;
}

/* CTA stats grid */
.cta-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.cta-stat {
  background: rgba(244, 129, 63, 0.06);
  border: 1px solid rgba(244, 129, 63, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.cta-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-stat-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ================================================================
 * 14. FAQ SECTION
 * ================================================================ */
.section-faq {
  background: var(--color-bg-surface);
}

.faq-accordion {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--ease-base);
}

.faq-item:has(.faq-answer.is-open) {
  border-color: rgba(244, 129, 63, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
  transition:
    color var(--ease-fast),
    background var(--ease-fast);
  background: none;
  border: none;
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-chevron {
  flex-shrink: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition:
    transform var(--ease-base),
    color var(--ease-base);
}

.faq-question.is-open .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer.is-open {
  max-height: 400px;
}

.faq-answer p {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  border-top: 1px solid var(--color-bg-border);
  padding-top: var(--space-md);
}

/* ================================================================
 * 15. FOOTER
 * ================================================================ */
.site-footer {
  background: var(--color-bg-base);
  border-top: 1px solid var(--color-bg-border);
  padding-top: var(--space-3xl);
}

.footer-top {
  padding-bottom: var(--space-3xl);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: 0.06em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.footer-brand img {
  flex-shrink: 0;
  max-height: 60px;
  width: auto;
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  max-width: 240px;
  margin: 0;
  line-height: 1.6;
}

/* Social icons */
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-bg-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: all var(--ease-base);
}

.social-links a:hover {
  color: var(--color-primary);
  border-color: rgba(244, 129, 63, 0.5);
  background: rgba(244, 129, 63, 0.1);
  transform: translateY(-2px);
}

/* Footer nav */
.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--ease-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* Contact list */
.footer-contact-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
}

.footer-contact-list i {
  width: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

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

/* Bottom bar */
.footer-bottom {
  border-top: 1px solid var(--color-bg-border);
  padding: var(--space-md) 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-muted);
}
.footer-bottom a:hover {
  color: var(--color-primary);
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  color: var(--color-text-muted);
}
.footer-bottom-links a:hover {
  color: var(--color-primary);
}

/* ================================================================
 * 16. BACK-TO-TOP BUTTON
 * ================================================================ */
.back-to-top {
  position: fixed;
  bottom: 100px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--ease-base),
    visibility var(--ease-base),
    transform var(--ease-base),
    background var(--ease-base);
  z-index: var(--z-overlay);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ================================================================
 * 18. SHARED BUTTON STYLES
 * ================================================================ */

/* Primary CTA button */
.btn-primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--gradient-brand);
  color: #fff !important;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: none;
  box-shadow: var(--shadow-primary);
  transition: all var(--ease-base);
  text-decoration: none !important;
}

.btn-primary-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 40px rgba(244, 129, 63, 0.55);
  filter: brightness(1.08);
  color: #fff !important;
}

.btn-primary-cta:active {
  transform: translateY(0);
}

/* Outline CTA button */
.btn-outline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 28px;
  background: transparent;
  color: var(--color-text-primary) !important;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-bg-border);
  transition: all var(--ease-base);
  text-decoration: none !important;
}

.btn-outline-cta:hover {
  border-color: var(--color-primary);
  color: var(--color-primary) !important;
  background: rgba(244, 129, 63, 0.07);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 7px 18px !important;
  font-size: 11px !important;
}

/* ================================================================
 * 19. ANIMATIONS & KEYFRAMES
 * ================================================================ */

/* Hero particle dots (generated in JS) */
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0;
  animation: particleFade 6s ease-in-out infinite;
}

@keyframes particleFade {
  0% {
    opacity: 0;
    transform: translateY(0) scale(1);
  }
  20% {
    opacity: 0.4;
  }
  80% {
    opacity: 0.15;
  }
  100% {
    opacity: 0;
    transform: translateY(-60px) scale(0.5);
  }
}

/* AOS override — ensure visibility on mobile if AOS fails */
[data-aos] {
  transition-property: transform, opacity;
}

/* ================================================================
 * 20. RESPONSIVE OVERRIDES
 * ================================================================ */

/* ── Tablet ─────────────────────────────────────────────────── */
@media (max-width: 991px) {
  body {
    padding-top: 70px;
  }

  .hero-section {
    padding: var(--space-2xl) 0;
    min-height: auto;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-ctas,
  .hero-trust {
    justify-content: center;
  }

  .hero-glow {
    display: none;
  }

  .hero-stats .col-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .step-number-label {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .big-step-num {
    font-size: 3rem;
  }

  .cta-card {
    padding: var(--space-xl);
  }

  .platform-item {
    flex-wrap: wrap;
  }

  .platform-item .store-btn {
    margin-left: 0 !important;
  }

  .cta-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 575px) {
  :root {
    --section-gap: 4rem;
  }

  .section-eyebrow {
    font-size: 10px;
  }

  .hero-badge {
    font-size: 10px;
  }

  .hero-title {
    font-size: 1.9rem;
  }

  .cta-stats-grid {
    grid-template-columns: 1fr;
  }

  .cta-card {
    padding: var(--space-lg);
  }

  .step-pills {
    gap: var(--space-xs);
  }

  .faq-question {
    padding: var(--space-md);
  }
  .faq-answer p {
    padding: 0 var(--space-md) var(--space-md);
    padding-top: var(--space-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .footer-bottom-links {
    gap: var(--space-md);
  }

  .hero-img {
    max-height: 300px;
  }
}