/* ============================================
   SPKA — Premium Dark Landing Page
   Colors: #171717 / #E10214 / #FFFFFF
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- Variables ---------- */
:root {
  --bg: #171717;
  --bg-raised: #1a1a1a;
  --bg-card: #1e1e1e;
  --bg-card-hover: #242424;
  --bg-subtle: #202020;
  --red: #E10214;
  --red-dark: #b8010f;
  --red-glow: rgba(225, 2, 20, 0.35);
  --red-soft: rgba(225, 2, 20, 0.08);
  --white: #FFFFFF;
  --text: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-muted: #6B6B6B;
  --border: #2a2a2a;
  --border-light: #333333;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.06);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Layout ---------- */
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

/* ---------- Full-viewport sections ---------- */
.section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0;
}
.section--alt { background: var(--bg-raised); }

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
[data-reveal="up"] { transform: translateY(80px); }
[data-reveal="down"] { transform: translateY(-80px); }
[data-reveal="left"] { transform: translateX(-80px); }
[data-reveal="right"] { transform: translateX(80px); }
[data-reveal="scale"] { transform: scale(0.88); }
[data-reveal="rotate"] { transform: perspective(1200px) rotateY(15deg); }
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1) rotateY(0deg);
}
/* stagger */
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }
[data-delay="7"] { transition-delay: 0.7s; }
[data-delay="8"] { transition-delay: 0.8s; }

/* ---------- Page Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 10000;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader__ring {
  width: 44px; height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: loaderSpin 0.7s linear infinite;
}
@keyframes loaderSpin { to { transform: rotate(360deg); } }

/* ================================================
   NAVBAR
   ================================================ */
.navbar {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s var(--ease);
}
.navbar.scrolled {
  padding: 12px 0;
  background: rgba(23,23,23,0.85);
  backdrop-filter: blur(24px) saturate(1.8);
  border-bottom: 1px solid var(--glass-border);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
}
.navbar__logo { display: flex; align-items: center; gap: 10px; }
.navbar__logo img { height: 36px; }
.navbar__logo-text {
  font-size: 1.25rem; font-weight: 800; letter-spacing: 2px; color: var(--white);
}
.navbar__menu { display: flex; align-items: center; gap: 36px; list-style: none; }
.navbar__menu a {
  font-size: 0.88rem; font-weight: 500; color: var(--text-secondary);
  position: relative; padding: 4px 0; transition: color 0.3s;
}
.navbar__menu a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--red);
  transition: width 0.4s var(--ease); border-radius: 2px;
}
.navbar__menu a:hover { color: var(--white); }
.navbar__menu a:hover::after { width: 100%; }

.navbar__actions { display: flex; align-items: center; gap: 16px; }
.btn-login {
  font-size: 0.88rem; font-weight: 500; color: var(--text-secondary);
  background: none; border: none; padding: 8px 16px;
  transition: color 0.3s;
}
.btn-login:hover { color: var(--white); }
.btn-signup {
  font-size: 0.85rem; font-weight: 600; color: var(--white);
  background: var(--red); border: none; border-radius: 50px;
  padding: 10px 24px;
  transition: all 0.3s var(--ease);
  box-shadow: 0 4px 20px var(--red-glow);
}
.btn-signup:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--red-glow);
}

/* Mobile toggle */
.navbar__toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 6px; cursor: pointer;
}
.navbar__toggle span {
  width: 24px; height: 2px; background: var(--white);
  border-radius: 2px; transition: all 0.3s;
}
.navbar__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ================================================
   SECTION 1 — HERO
   ================================================ */
.hero { padding-top: 80px; }
.hero .container {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center; min-height: calc(100vh - 80px);
}

/* Left */
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--red-soft); border: 1px solid rgba(225,2,20,0.2);
  border-radius: 50px; padding: 6px 16px 6px 8px;
  font-size: 0.78rem; font-weight: 600; color: var(--red);
  text-transform: uppercase; letter-spacing: 1.5px;
  margin-bottom: 24px;
}
.hero__badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--red); animation: heroPulse 2s infinite;
}
@keyframes heroPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(225,2,20,0.5); }
  50% { box-shadow: 0 0 0 6px rgba(225,2,20,0); }
}
.hero__title {
  font-size: clamp(2.8rem, 5vw, 4.6rem);
  font-weight: 800; line-height: 1.05; letter-spacing: -2px;
  margin-bottom: 24px;
}
.hero__title-accent { color: var(--red); }
.hero__desc {
  font-size: 1.1rem; color: var(--text-secondary); line-height: 1.8;
  max-width: 480px; margin-bottom: 40px;
}
.hero__buttons { display: flex; gap: 16px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 50px; font-size: 0.92rem;
  font-weight: 600; border: none; transition: all 0.35s var(--ease);
}
.btn--red {
  background: var(--red); color: var(--white);
  box-shadow: 0 4px 24px var(--red-glow);
}
.btn--red:hover {
  background: var(--red-dark); transform: translateY(-3px);
  box-shadow: 0 10px 40px var(--red-glow);
}
.btn--ghost {
  background: transparent; color: var(--white);
  border: 1.5px solid var(--border-light);
}
.btn--ghost:hover {
  border-color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  transform: translateY(-3px);
}
.btn__play {
  width: 18px; height: 18px; border: none; background: none;
}

/* Right — Floating Dashboard Cards */
.hero__visual {
  position: relative; height: 520px;
  perspective: 1200px;
}
.hero__float {
  position: absolute; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.hero__float:hover {
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 40px var(--red-glow);
}

/* Main dashboard card */
.hero__card-main {
  top: 40px; left: 30px; width: 340px; padding: 24px;
  z-index: 3; transform: rotateY(-5deg) rotateX(2deg);
  animation: heroFloat1 6s ease-in-out infinite;
}
@keyframes heroFloat1 {
  0%,100% { transform: rotateY(-5deg) rotateX(2deg) translateY(0); }
  50% { transform: rotateY(-5deg) rotateX(2deg) translateY(-12px); }
}
.hero__card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
}
.hero__card-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.hero__card-amount { font-size: 2rem; font-weight: 800; }
.hero__card-change {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.78rem; font-weight: 600; color: #4ade80;
  background: rgba(74,222,128,0.1); padding: 4px 10px; border-radius: 20px;
}
.hero__card-bars {
  display: flex; align-items: flex-end; gap: 6px; height: 60px; margin-top: 16px;
}
.hero__card-bar {
  flex: 1; border-radius: 4px 4px 0 0; background: var(--border);
  transition: height 0.6s var(--ease);
}
.hero__card-bar--active { background: var(--red); }

/* Stats circle card */
.hero__card-circle {
  top: 20px; right: 0; width: 180px; padding: 20px;
  z-index: 4; transform: rotateY(5deg) rotateX(-3deg);
  animation: heroFloat2 7s ease-in-out infinite;
}
@keyframes heroFloat2 {
  0%,100% { transform: rotateY(5deg) rotateX(-3deg) translateY(0); }
  50% { transform: rotateY(5deg) rotateX(-3deg) translateY(-16px); }
}
.donut-chart {
  width: 100px; height: 100px; margin: 0 auto 12px;
  border-radius: 50%; position: relative;
  background: conic-gradient(var(--red) 0% 25%, #ff6b35 25% 45%, var(--border) 45% 100%);
}
.donut-chart::after {
  content: '25%'; position: absolute; inset: 16px;
  background: var(--bg-card); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700;
}

/* Rating card */
.hero__card-rating {
  bottom: 40px; right: 30px; width: 200px; padding: 20px;
  z-index: 4; transform: rotateY(8deg) rotateX(3deg);
  animation: heroFloat3 5.5s ease-in-out infinite;
}
@keyframes heroFloat3 {
  0%,100% { transform: rotateY(8deg) rotateX(3deg) translateY(0); }
  50% { transform: rotateY(8deg) rotateX(3deg) translateY(-10px); }
}
.hero__rating-label { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 6px; }
.hero__rating-value { font-size: 1.8rem; font-weight: 800; margin-bottom: 4px; }
.hero__rating-bar {
  height: 6px; background: var(--border); border-radius: 3px; overflow: hidden;
}
.hero__rating-fill { height: 100%; background: var(--red); border-radius: 3px; width: 86%; }

/* Notification card */
.hero__card-notif {
  bottom: 80px; left: 0; width: 260px; padding: 16px 18px;
  z-index: 5; transform: rotateY(-3deg);
  animation: heroFloat4 8s ease-in-out infinite;
  display: flex; align-items: center; gap: 12px;
}
@keyframes heroFloat4 {
  0%,100% { transform: rotateY(-3deg) translateY(0); }
  50% { transform: rotateY(-3deg) translateY(-8px); }
}
.hero__notif-icon {
  width: 40px; height: 40px; min-width: 40px; border-radius: 10px;
  background: var(--red); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.hero__notif-text { font-size: 0.8rem; font-weight: 600; line-height: 1.4; }
.hero__notif-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 2px; }

/* Connecting dots */
.hero__connector {
  position: absolute; z-index: 1;
}

/* Red glow behind cards */
.hero__glow {
  position: absolute;
  width: 350px; height: 350px; border-radius: 50%;
  background: radial-gradient(circle, rgba(225,2,20,0.15) 0%, transparent 70%);
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  z-index: 0; filter: blur(40px);
  animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
  0%,100% { opacity: 0.6; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.1); }
}

/* ================================================
   SECTION 2 — FEATURES
   ================================================ */
.features__header {
  text-align: center; max-width: 600px; margin: 0 auto 72px;
}
.section-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2.5px;
  color: var(--red); margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800; line-height: 1.12; letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1rem; color: var(--text-secondary); line-height: 1.8;
}

.features__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.f-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 40px 32px;
  position: relative; overflow: hidden;
  transition: all 0.5s var(--ease);
  transform-style: preserve-3d;
}
.f-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--red), #ff4444);
  transform: scaleX(0); transition: transform 0.5s var(--ease);
  transform-origin: left;
}
.f-card:hover {
  background: var(--bg-card); border-color: var(--border);
  transform: translateY(-10px) rotateX(2deg);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4), 0 0 40px rgba(225,2,20,0.06);
}
.f-card:hover::before { transform: scaleX(1); }
.f-card__icon {
  width: 52px; height: 52px; border-radius: var(--radius-xs);
  background: var(--red-soft); border: 1px solid rgba(225,2,20,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 24px;
  transition: all 0.4s var(--ease);
}
.f-card:hover .f-card__icon {
  background: var(--red); border-color: var(--red);
  box-shadow: 0 8px 24px var(--red-glow);
  transform: scale(1.08);
}
.f-card__title {
  font-size: 1.15rem; font-weight: 700; margin-bottom: 10px;
}
.f-card__desc {
  font-size: 0.88rem; color: var(--text-muted); line-height: 1.75;
}

/* ================================================
   SECTION 3 — HOW IT WORKS
   ================================================ */
.steps__header { text-align: center; max-width: 600px; margin: 0 auto 72px; }
.steps__row {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
  position: relative;
}
/* connecting line */
.steps__row::before {
  content: ''; position: absolute; top: 48px;
  left: 10%; right: 10%; height: 2px;
  background: linear-gradient(90deg, var(--red), var(--border), var(--red));
  z-index: 0;
}
.step {
  text-align: center; position: relative; z-index: 1;
}
.step__number {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 800; margin: 0 auto 20px;
  transition: all 0.5s var(--ease);
  position: relative;
}
.step:hover .step__number {
  border-color: var(--red); color: var(--red);
  box-shadow: 0 0 30px var(--red-glow);
  transform: scale(1.15);
}
.step__number::after {
  content: ''; position: absolute; inset: -6px;
  border-radius: 50%; border: 1px solid transparent;
  transition: border-color 0.4s var(--ease);
}
.step:hover .step__number::after { border-color: rgba(225,2,20,0.3); }
.step__title {
  font-size: 0.95rem; font-weight: 700; margin-bottom: 8px;
}
.step__desc {
  font-size: 0.82rem; color: var(--text-muted); line-height: 1.6;
  max-width: 180px; margin: 0 auto;
}

/* ================================================
   SECTION 4 — DASHBOARD PREVIEW
   ================================================ */
.preview__header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.preview__wrapper {
  position: relative; max-width: 960px; margin: 0 auto;
  perspective: 1400px;
}
.preview__screen {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transform: rotateX(4deg) rotateY(0deg);
  transition: transform 0.8s var(--ease), box-shadow 0.8s var(--ease);
  box-shadow: 0 40px 100px rgba(0,0,0,0.5);
}
.preview__screen:hover {
  transform: rotateX(0deg) rotateY(0deg);
  box-shadow: 0 50px 120px rgba(0,0,0,0.6), 0 0 60px rgba(225,2,20,0.08);
}
.preview__topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.preview__dot {
  width: 10px; height: 10px; border-radius: 50%;
}
.preview__dot--red { background: #ff5f57; }
.preview__dot--yellow { background: #febc2e; }
.preview__dot--green { background: #28c840; }
.preview__body {
  display: grid; grid-template-columns: 200px 1fr; min-height: 400px;
}
.preview__sidebar {
  border-right: 1px solid var(--border); padding: 20px 0;
}
.preview__sidebar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; font-size: 0.82rem; color: var(--text-muted);
  transition: all 0.3s;
}
.preview__sidebar-item--active {
  color: var(--red); background: var(--red-soft);
  border-right: 2px solid var(--red);
}
.preview__sidebar-icon { width: 16px; text-align: center; }
.preview__main { padding: 24px; }
.preview__stat-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 20px; }
.preview__stat {
  background: var(--bg-subtle); border-radius: var(--radius-xs);
  padding: 16px 20px;
}
.preview__stat-val { font-size: 1.5rem; font-weight: 800; }
.preview__stat-val--red { color: var(--red); }
.preview__stat-label { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.preview__chart {
  background: var(--bg-subtle); border-radius: var(--radius-xs);
  height: 180px; display: flex; align-items: flex-end;
  padding: 20px; gap: 8px;
}
.preview__chart-bar {
  flex: 1; border-radius: 4px 4px 0 0; background: var(--border);
  transition: height 1.2s var(--ease);
}
.preview__chart-bar--red { background: var(--red); }

/* Floating annotation badges */
.preview__badge {
  position: absolute; padding: 10px 16px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 50px; font-size: 0.78rem; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  animation: badgeFloat 5s ease-in-out infinite;
  z-index: 10;
}
.preview__badge--tl { top: -20px; left: -30px; }
.preview__badge--tr { top: 40px; right: -40px; animation-delay: 1.5s; }
.preview__badge--br { bottom: -20px; right: 20px; animation-delay: 3s; }
@keyframes badgeFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.preview__badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.preview__badge-dot--green { background: #4ade80; }
.preview__badge-dot--red { background: var(--red); }
.preview__badge-dot--orange { background: #ff6b35; }

/* ================================================
   SECTION 5 — METRICS
   ================================================ */
.metrics__header { text-align: center; max-width: 600px; margin: 0 auto 72px; }
.metrics__grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.m-card {
  text-align: center; padding: 48px 24px;
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); position: relative; overflow: hidden;
  transition: all 0.5s var(--ease);
}
.m-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: var(--red);
  transform: scaleX(0); transition: transform 0.5s var(--ease);
}
.m-card:hover { transform: translateY(-8px); border-color: var(--border); background: var(--bg-card); }
.m-card:hover::after { transform: scaleX(1); }
.m-card__icon { font-size: 2rem; margin-bottom: 16px; }
.m-card__value {
  font-size: 3rem; font-weight: 900; letter-spacing: -1px; margin-bottom: 4px;
  background: linear-gradient(135deg, var(--red), #ff4444);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.m-card__label {
  font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px;
}

/* ================================================
   SECTION 6 — MODULES
   ================================================ */
.modules__header { text-align: center; max-width: 600px; margin: 0 auto 64px; }
.modules__grid {
  display: grid; grid-template-columns: repeat(6,1fr); gap: 16px;
}
.mod {
  text-align: center; padding: 28px 12px;
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: all 0.4s var(--ease);
  cursor: default;
}
.mod:hover {
  background: var(--bg-card); border-color: var(--border);
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
.mod__icon {
  font-size: 1.6rem; margin-bottom: 10px;
  transition: transform 0.4s var(--ease-back);
}
.mod:hover .mod__icon { transform: scale(1.2) translateY(-2px); }
.mod__name { font-size: 0.78rem; font-weight: 600; }

/* ================================================
   SECTION 7 — CTA
   ================================================ */
.cta__box {
  max-width: 880px; margin: 0 auto;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 28px; padding: 80px 60px;
  text-align: center; position: relative; overflow: hidden;
}
.cta__box::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(225,2,20,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(225,2,20,0.05) 0%, transparent 60%);
  pointer-events: none;
}
.cta__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800; letter-spacing: -1px; margin-bottom: 16px;
  position: relative;
}
.cta__desc {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 520px; margin: 0 auto 40px; line-height: 1.8;
  position: relative;
}
.cta__actions {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  position: relative;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--bg); border-top: 1px solid var(--glass-border);
  padding: 64px 0 32px;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 48px;
}
.footer__logo { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.footer__logo img { height: 32px; }
.footer__logo-text { font-weight: 800; letter-spacing: 2px; font-size: 1.1rem; }
.footer__desc { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 300px; }
.footer__heading {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; margin-bottom: 20px; color: var(--text);
}
.footer__links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer__links a {
  font-size: 0.88rem; color: var(--text-muted); transition: color 0.3s;
}
.footer__links a:hover { color: var(--red); }
.footer__bottom {
  border-top: 1px solid var(--glass-border); padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: var(--text-muted);
}
.footer__socials { display: flex; gap: 12px; }
.footer__social {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--glass-border); display: flex;
  align-items: center; justify-content: center; font-size: 0.85rem;
  color: var(--text-muted); transition: all 0.3s;
}
.footer__social:hover {
  color: var(--red); border-color: var(--red);
  box-shadow: 0 0 20px var(--red-glow);
  transform: translateY(-2px);
}

/* Back to top */
.btt {
  position: fixed; bottom: 28px; right: 28px;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--red); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; border: none;
  opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: all 0.4s var(--ease);
  box-shadow: 0 4px 24px var(--red-glow);
  z-index: 999;
}
.btt.show { opacity: 1; visibility: visible; transform: translateY(0); }
.btt:hover { transform: translateY(-4px); box-shadow: 0 8px 32px var(--red-glow); }

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2,1fr); }
  .steps__row { grid-template-columns: repeat(3,1fr); gap: 24px; }
  .steps__row::before { display: none; }
  .step:nth-child(4), .step:nth-child(5) { margin-top: 0; }
  .metrics__grid { grid-template-columns: repeat(2,1fr); }
  .modules__grid { grid-template-columns: repeat(3,1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .preview__body { grid-template-columns: 1fr; }
  .preview__sidebar { display: none; }
  .preview__badge { display: none; }
}

@media (max-width: 768px) {
  .navbar__menu { display: none; }
  .navbar__toggle { display: flex; }
  .navbar__menu.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(23,23,23,0.97); backdrop-filter: blur(24px);
    padding: 24px 32px; gap: 20px;
    border-bottom: 1px solid var(--glass-border);
  }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { height: 340px; }
  .hero__card-main { width: 260px; left: 10px; top: 20px; }
  .hero__card-circle { width: 140px; right: -10px; top: 0; }
  .hero__card-rating { right: 0; bottom: 10px; width: 160px; }
  .hero__card-notif { width: 220px; bottom: 40px; left: -10px; }
  .features__grid { grid-template-columns: 1fr; }
  .steps__row { grid-template-columns: 1fr 1fr; }
  .metrics__grid { grid-template-columns: 1fr 1fr; }
  .modules__grid { grid-template-columns: repeat(3,1fr); }
  .cta__box { padding: 48px 24px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .section { padding: 80px 0; }
  .hero__visual { display: none; }
  .steps__row { grid-template-columns: 1fr; }
  .metrics__grid { grid-template-columns: 1fr; }
  .modules__grid { grid-template-columns: repeat(2,1fr); }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

::selection { background: rgba(225,2,20,0.25); color: var(--white); }