/* ============================================
   CINEVERSE — style.css
   Dark cinematic theme | Mobile-first
   ============================================ */

/* ---- CSS Variables ---- */
:root {
  /* Colors */
  --clr-bg:         #080b10;
  --clr-bg-2:       #0d1117;
  --clr-bg-3:       #111822;
  --clr-surface:    #141c27;
  --clr-border:     rgba(255,255,255,0.07);
  --clr-border-2:   rgba(255,255,255,0.12);

  --clr-accent:     #e8213a;   /* cinema red */
  --clr-accent-2:   #2563eb;   /* electric blue */
  --clr-accent-3:   #d4a017;   /* film gold */
  --clr-accent-glow: rgba(232,33,58,0.25);

  --clr-text:       #f0f4f8;
  --clr-text-muted: #8899a6;
  --clr-text-dim:   #556070;

  /* Typography */
  --font-display:  'Bebas Neue', sans-serif;
  --font-body:     'DM Sans', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  7rem;

  /* Layout */
  --max-w:      1300px;
  --nav-h:      72px;

  /* Radius */
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;

  /* Transitions */
  --ease:     cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-med:  320ms;
  --dur-slow: 550ms;

  /* Glass */
  --glass-bg:     rgba(255,255,255,0.035);
  --glass-border: rgba(255,255,255,0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-text-size-adjust: 100%;
}

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

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-2xl) 0;
  position: relative;
}

/* ============================================
   LOADER
   ============================================ */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

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

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

.loader-logo {
  font-family: var(--font-display);
  font-size: 3.5rem;
  letter-spacing: 0.05em;
  color: var(--clr-accent);
  animation: loader-pulse 1.2s ease-in-out infinite;
  margin-bottom: 1.2rem;
}

.loader-bar {
  width: 160px;
  height: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
  overflow: hidden;
  margin: 0 auto;
}

.loader-fill {
  height: 100%;
  background: var(--clr-accent);
  border-radius: 99px;
  animation: loader-fill 1.4s var(--ease) forwards;
}

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

@keyframes loader-fill {
  from { width: 0; }
  to   { width: 100%; }
}

/* ============================================
   BACK TO TOP
   ============================================ */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 800;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  color: var(--clr-text);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  pointer-events: none;
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#back-to-top:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  box-shadow: 0 0 20px var(--clr-accent-glow);
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-h);
  transition: background var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), backdrop-filter var(--dur-med) var(--ease);
}

#navbar.scrolled {
  background: rgba(8,11,16,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: var(--clr-accent);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: #fff;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--clr-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-link {
  padding: 0.45rem 0.85rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.nav-link:hover {
  color: var(--clr-text);
  background: rgba(255,255,255,0.06);
}

.nav-link.nav-cta {
  background: rgba(232,33,58,0.12);
  border: 1px solid rgba(232,33,58,0.25);
  color: #ff5c6e;
  margin-left: 0.5rem;
}

.nav-link.nav-cta:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #fff;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  border-radius: var(--r-sm);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--dur-med) var(--ease), opacity var(--dur-fast) var(--ease);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.75rem 1.6rem;
  border-radius: 99px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}

.btn:hover::after { opacity: 1; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  box-shadow: 0 4px 24px rgba(232,33,58,0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 32px rgba(232,33,58,0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border-2);
}

.btn-secondary:hover {
  border-color: rgba(255,255,255,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.btn-card {
  font-size: 0.82rem;
  padding: 0.55rem 1.2rem;
  border-radius: 99px;
}

.btn-card--download {
  background: var(--clr-accent);
  color: #fff;
  box-shadow: 0 2px 14px rgba(232,33,58,0.25);
}

.btn-card--download:hover {
  box-shadow: 0 4px 20px rgba(232,33,58,0.4);
}

.btn-card--visit {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--clr-border-2);
  color: var(--clr-text);
}

.btn-card--visit:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
}

.btn-subscribe {
  border-radius: 99px;
  flex-shrink: 0;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(232,33,58,0.08);
  border: 1px solid rgba(232,33,58,0.18);
  padding: 0.3rem 0.85rem;
  border-radius: 99px;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  letter-spacing: 0.03em;
  line-height: 1.05;
  color: var(--clr-text);
  margin-bottom: 0.8rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  max-width: 540px;
  margin: 0 auto;
}

/* Subsection header */
.subsection-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}

.subsection-header h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--clr-text-muted);
}

.subsection-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
}

/* ============================================
   GLASS CARDS
   ============================================ */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
}

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: var(--nav-h) 0 var(--space-2xl);
  overflow: hidden;
  position: relative;
}

/* Hero background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-gradient-1 {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 80vw;
  max-width: 900px;
  max-height: 900px;
  background: radial-gradient(ellipse, rgba(232,33,58,0.12) 0%, transparent 65%);
  border-radius: 50%;
}

.hero-gradient-2 {
  position: absolute;
  bottom: 0;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(ellipse, rgba(37,99,235,0.07) 0%, transparent 65%);
  border-radius: 50%;
}

.hero-gradient-3 {
  position: absolute;
  top: 30%;
  right: -10%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(ellipse, rgba(212,160,23,0.06) 0%, transparent 65%);
  border-radius: 50%;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 80%);
}

/* Film grain */
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 160px 160px;
}

/* Floating particles */
.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-particle linear infinite;
  pointer-events: none;
}

@keyframes float-particle {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 99px;
  padding: 0.35rem 1rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3ddc84;
  box-shadow: 0 0 8px rgba(61,220,132,0.7);
  animation: badge-blink 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes badge-blink {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(61,220,132,0.7); }
  50% { opacity: 0.5; box-shadow: 0 0 3px rgba(61,220,132,0.3); }
}

.hero-logo-img {
  margin-bottom: 1.5rem;
}

.logo-circle {
  width: 90px;
  height: 90px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--clr-accent) 0%, #b01a2c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2.6rem;
  letter-spacing: 0.04em;
  color: #fff;
  box-shadow: 0 0 60px rgba(232,33,58,0.35), 0 0 120px rgba(232,33,58,0.12);
  animation: hero-logo-float 4s ease-in-out infinite;
}

@keyframes hero-logo-float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 9rem);
  letter-spacing: 0.03em;
  line-height: 0.95;
  color: var(--clr-text);
  margin-bottom: 0.5rem;
}

.hero-title .title-line {
  display: block;
}

.hero-title .accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--clr-accent);
  text-stroke: 2px var(--clr-accent);
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 2vw, 0.95rem);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: var(--clr-text-muted);
  max-width: 620px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 3.5rem;
}

.hero-scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--clr-text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--clr-text-dim));
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   PLATFORMS SECTION
   ============================================ */
#platforms {
  background: var(--clr-bg-2);
}

.cards-grid {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.cards-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.cards-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* Platform card */
.platform-card {
  border-radius: var(--r-lg);
  padding: var(--space-md) var(--space-md) var(--space-md);
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
  border-color: var(--clr-border-2);
}

/* Card accent strip */
.card-accent {
  position: absolute;
  top: 0; left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}

.card-accent--red  { background: linear-gradient(90deg, var(--clr-accent), transparent); }
.card-accent--blue { background: linear-gradient(90deg, var(--clr-accent-2), transparent); }
.card-accent--gold { background: linear-gradient(90deg, var(--clr-accent-3), transparent); }

/* Card icon */
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-icon--sm {
  width: 44px;
  height: 44px;
}

.card-icon--red  { background: rgba(232,33,58,0.1); color: var(--clr-accent); border: 1px solid rgba(232,33,58,0.2); }
.card-icon--blue { background: rgba(37,99,235,0.1); color: #4d8ef0; border: 1px solid rgba(37,99,235,0.2); }
.card-icon--gold { background: rgba(212,160,23,0.1); color: #e8b84b; border: 1px solid rgba(212,160,23,0.2); }

.card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.card-badge {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  padding: 0.15rem 0.5rem;
  border-radius: 99px;
  width: fit-content;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--clr-text);
  line-height: 1;
}

.platform-card .card-title {
  font-size: 1.25rem;
  margin-top: 0.3rem;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.card-platform-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
}

/* ============================================
   COMMUNITY / SOCIAL SECTION
   ============================================ */
#community {
  background: var(--clr-bg);
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-sm);
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  border-radius: var(--r-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), background var(--dur-med) var(--ease);
  position: relative;
  overflow: hidden;
}

.social-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}

.social-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.social-btn:hover::before { opacity: 1; }

/* Per-platform colors */
.social-btn--telegram { --s-clr: #29b6f6; }
.social-btn--discord  { --s-clr: #5865f2; }
.social-btn--reddit   { --s-clr: #ff4500; }
.social-btn--youtube  { --s-clr: #ff0000; }
.social-btn--instagram { --s-clr: #e1306c; }
.social-btn--twitter  { --s-clr: #e7e7e7; }

.social-btn:hover { border-color: var(--s-clr); }
.social-btn:hover .social-icon { color: var(--s-clr); }
.social-btn::before { background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 70%); }

.social-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  flex-shrink: 0;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.social-btn:hover .social-icon {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}

.social-info {
  flex: 1;
  min-width: 0;
}

.social-name {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--clr-text);
  margin-bottom: 0.15rem;
}

.social-sub {
  display: block;
  font-size: 0.78rem;
  color: var(--clr-text-dim);
  font-weight: 400;
}

.social-arrow {
  color: var(--clr-text-dim);
  font-size: 1.1rem;
  transition: transform var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.social-btn:hover .social-arrow {
  transform: translateX(4px);
  color: var(--s-clr);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
#features {
  background: var(--clr-bg-2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-sm);
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--space-md) var(--space-md) 1.4rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
  border-color: rgba(255,255,255,0.12);
}

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

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--r-sm);
  background: rgba(232,33,58,0.08);
  border: 1px solid rgba(232,33,58,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  margin-bottom: var(--space-sm);
  transition: background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.feature-card:hover .feature-icon {
  background: rgba(232,33,58,0.14);
  box-shadow: 0 0 20px rgba(232,33,58,0.15);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--clr-text);
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

/* ============================================
   STATS SECTION
   ============================================ */
#stats {
  background: var(--clr-bg-3);
  overflow: hidden;
}

.stats-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 20% 50%, rgba(232,33,58,0.05) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(37,99,235,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-sm);
  text-align: center;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: 2.5rem var(--space-md);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  letter-spacing: 0.02em;
  color: var(--clr-text);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--clr-accent);
  line-height: 1;
  position: absolute;
  top: 2.5rem;
  transform: translateX(100%) translateX(0.15rem);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.4rem;
}

/* ============================================
   NEWSLETTER
   ============================================ */
#newsletter {
  background: var(--clr-bg);
}

.newsletter-box {
  border-radius: var(--r-xl);
  padding: clamp(2rem, 5vw, 3.5rem);
  display: flex;
  gap: var(--space-xl);
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.newsletter-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 120% at 0% 50%, rgba(232,33,58,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 80% at 100% 50%, rgba(37,99,235,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.newsletter-content {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 240px;
}

.newsletter-content h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.04em;
  color: var(--clr-text);
  margin: 0.4rem 0 0.7rem;
}

.newsletter-content p {
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  max-width: 400px;
}

.newsletter-form {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 280px;
}

.input-group {
  display: flex;
  gap: 0.5rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border-2);
  border-radius: 99px;
  padding: 0.35rem 0.35rem 0.35rem 1.25rem;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.input-group:focus-within {
  border-color: rgba(232,33,58,0.4);
  box-shadow: 0 0 0 3px rgba(232,33,58,0.08);
}

.input-group input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  min-width: 0;
}

.input-group input::placeholder { color: var(--clr-text-dim); }

.form-msg {
  margin-top: 0.6rem;
  font-size: 0.82rem;
  min-height: 1.2em;
  padding-left: 0.5rem;
  transition: color var(--dur-fast);
}

.form-msg.error { color: var(--clr-accent); }
.form-msg.success { color: #3ddc84; }

/* ============================================
   FOOTER
   ============================================ */
#footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-2xl) 0 var(--space-lg);
  position: relative;
  overflow: hidden;
}

.footer-glow {
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(232,33,58,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  margin: 1rem 0 1.5rem;
  max-width: 280px;
  line-height: 1.65;
}

.footer-social {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.footer-social-link:hover {
  color: var(--clr-text);
  background: rgba(255,255,255,0.08);
  border-color: var(--clr-border-2);
  transform: translateY(-2px);
}

.footer-col {}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-bottom: 1.2rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
  display: inline-block;
}

.footer-col a:hover {
  color: var(--clr-text);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-copy, .footer-made {
  font-size: 0.8rem;
  color: var(--clr-text-dim);
}

/* ============================================
   FADE-IN ANIMATIONS (Intersection Observer)
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delay for groups */
.fade-in[data-delay="0"]   { transition-delay: 0ms; }
.fade-in[data-delay="100"] { transition-delay: 100ms; }
.fade-in[data-delay="200"] { transition-delay: 200ms; }
.fade-in[data-delay="300"] { transition-delay: 300ms; }
.fade-in[data-delay="400"] { transition-delay: 400ms; }
.fade-in[data-delay="500"] { transition-delay: 500ms; }
.fade-in[data-delay="700"] { transition-delay: 700ms; }

/* Grid children stagger */
.cards-grid .platform-card:nth-child(1) { transition-delay: 0ms; }
.cards-grid .platform-card:nth-child(2) { transition-delay: 100ms; }
.cards-grid .platform-card:nth-child(3) { transition-delay: 200ms; }
.cards-grid .platform-card:nth-child(4) { transition-delay: 300ms; }

.features-grid .feature-card:nth-child(1) { transition-delay: 0ms; }
.features-grid .feature-card:nth-child(2) { transition-delay: 80ms; }
.features-grid .feature-card:nth-child(3) { transition-delay: 160ms; }
.features-grid .feature-card:nth-child(4) { transition-delay: 240ms; }
.features-grid .feature-card:nth-child(5) { transition-delay: 320ms; }
.features-grid .feature-card:nth-child(6) { transition-delay: 400ms; }

.stats-grid .stat-card:nth-child(1) { transition-delay: 0ms; }
.stats-grid .stat-card:nth-child(2) { transition-delay: 100ms; }
.stats-grid .stat-card:nth-child(3) { transition-delay: 200ms; }
.stats-grid .stat-card:nth-child(4) { transition-delay: 300ms; }

.social-grid .social-btn:nth-child(1) { transition-delay: 0ms; }
.social-grid .social-btn:nth-child(2) { transition-delay: 60ms; }
.social-grid .social-btn:nth-child(3) { transition-delay: 120ms; }
.social-grid .social-btn:nth-child(4) { transition-delay: 180ms; }
.social-grid .social-btn:nth-child(5) { transition-delay: 240ms; }
.social-grid .social-btn:nth-child(6) { transition-delay: 300ms; }

/* ============================================
   RESPONSIVE — Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  .container { padding: 0 var(--space-lg); }

  .cards-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================
   RESPONSIVE — Mobile (< 768px)
   ============================================ */
@media (max-width: 767px) {
  :root {
    --space-2xl: 4.5rem;
    --space-xl:  2.5rem;
  }

  /* Nav mobile */
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(8,11,16,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--clr-border);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    gap: 0.2rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease);
    z-index: 800;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
  }

  .nav-link.nav-cta { margin-left: 0; margin-top: 0.25rem; text-align: center; }

  .hamburger { display: flex; }

  /* Hero */
  .hero-title { font-size: clamp(3.2rem, 15vw, 6rem); }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 300px; justify-content: center; }

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

  /* Stats: 2 cols */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Newsletter */
  .newsletter-box {
    flex-direction: column;
    gap: var(--space-md);
  }
  .newsletter-content, .newsletter-form { min-width: auto; width: 100%; }
  .input-group { flex-direction: column; border-radius: var(--r-md); padding: 0.75rem; }
  .input-group input { padding: 0.25rem 0; }
  .btn-subscribe { width: 100%; justify-content: center; border-radius: var(--r-sm); }

  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  #back-to-top { bottom: 1rem; right: 1rem; }
}

/* ============================================
   RESPONSIVE — Laptop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .container { padding: 0 var(--space-xl); }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   RESPONSIVE — Desktop (1440px+)
   ============================================ */
@media (min-width: 1440px) {
  html { font-size: 17px; }
}

/* ============================================
   FOCUS STYLES (Accessibility)
   ============================================ */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-surface); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-text-dim); }