/* ===== DESIGN SYSTEM ===== */
@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Nunito:wght@400;500;600;700;800;900&family=Poppins:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #FF6B35;
  --secondary: #6C63FF;
  --accent1: #FFD166;
  --accent2: #06D6A0;
  --accent3: #EF476F;
  --accent4: #118AB2;
  --bg: #FFFBF7;
  --bg2: #FFF5EC;
  --surface: #FFFFFF;
  --text: #1A1A2E;
  --text2: #4A4A6A;
  --text3: #8888AA;
  --border: #E8E0F0;
  --shadow: rgba(108, 99, 255, 0.12);
  --shadow2: rgba(255, 107, 53, 0.18);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 32px;
  --font-display: 'Fredoka One', cursive;
  --font-body: 'Nunito', sans-serif;
  --font-ui: 'Poppins', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

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

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--secondary); border-radius: 4px; }

/* ===== HEADER ===== */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(255,251,247,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 2px solid var(--border);
  display: flex; align-items: center;
  transition: var(--transition);
}
#site-header.scrolled {
  box-shadow: 0 4px 30px var(--shadow);
}
.header-inner {
  max-width: 1280px; margin: 0 auto; width: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--primary);
  letter-spacing: 0.5px;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.1rem;
  animation: spin-slow 8s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

.nav-links {
  display: flex; align-items: center; gap: 6px;
}
.nav-links a {
  font-family: var(--font-ui);
  font-weight: 600; font-size: 0.88rem;
  padding: 8px 16px;
  border-radius: 50px;
  color: var(--text2);
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.nav-links a:hover, .nav-links a.active {
  background: var(--secondary);
  color: white;
}
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--accent3)) !important;
  color: white !important;
  box-shadow: 0 4px 15px var(--shadow2);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow2) !important;
}
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  padding: 8px; cursor: pointer;
}
.hamburger span {
  display: block; width: 24px; height: 2.5px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}

/* ===== MOBILE NAV ===== */
.mobile-nav {
  display: none;
  position: fixed; top: var(--header-h); left: 0; right: 0;
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  padding: 16px 24px;
  z-index: 999;
  flex-direction: column; gap: 4px;
  box-shadow: 0 8px 30px var(--shadow);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-family: var(--font-ui); font-weight: 600;
  padding: 12px 16px; border-radius: var(--radius-sm);
  color: var(--text2); transition: var(--transition);
}
.mobile-nav a:hover { background: var(--bg2); color: var(--primary); }

/* ===== MAIN LAYOUT ===== */
main { padding-top: var(--header-h); }

section { position: relative; overflow: hidden; }

.container {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
}

/* ===== SECTION LABELS ===== */
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, rgba(108,99,255,0.1), rgba(255,107,53,0.1));
  border: 1.5px solid var(--border);
  padding: 6px 16px;
  border-radius: 50px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--secondary);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem; color: var(--text2);
  max-width: 620px;
  line-height: 1.7;
}
.text-center { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* ===== HERO SECTION ===== */
#hero {
  min-height: calc(100vh - var(--header-h));
  background: linear-gradient(160deg, #FFFBF7 0%, #F0EEFF 40%, #FFF0E8 100%);
  display: flex; align-items: center;
  padding: 60px 0 40px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px; align-items: start;
  max-width: 1280px; margin: 0 auto; padding: 0 24px; width: 100%;
}
.hero-text { padding-top: 20px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent1), #FFE0A0);
  padding: 8px 18px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 800; font-size: 0.82rem;
  color: #7A4F00; margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(255,209,102,0.4);
  text-transform: uppercase; letter-spacing: 1px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.08rem; color: var(--text2);
  margin-bottom: 28px; line-height: 1.75;
  max-width: 500px;
}
.hero-btns {
  display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--primary), #FF8C42);
  color: white; font-family: var(--font-ui); font-weight: 700;
  font-size: 0.95rem; padding: 14px 28px;
  border-radius: 50px;
  box-shadow: 0 6px 24px rgba(255,107,53,0.35);
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255,107,53,0.45);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); color: var(--secondary);
  font-family: var(--font-ui); font-weight: 700;
  font-size: 0.95rem; padding: 13px 26px;
  border-radius: 50px;
  border: 2px solid var(--secondary);
  transition: var(--transition);
}
.btn-secondary:hover {
  background: var(--secondary); color: white;
  transform: translateY(-3px);
}
.hero-stats {
  display: flex; gap: 24px; flex-wrap: wrap;
}
.stat-item {
  display: flex; flex-direction: column; gap: 2px;
}
.stat-num {
  font-family: var(--font-display); font-size: 1.8rem;
  color: var(--primary); line-height: 1;
}
.stat-label {
  font-size: 0.78rem; color: var(--text3);
  font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
}

/* ===== WHEEL APP CONTAINER ===== */
.hero-app {
  background: var(--surface);
  border-radius: 28px;
  box-shadow: 0 20px 60px var(--shadow), 0 0 0 1px var(--border);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.app-topbar {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.app-topbar-title {
  font-family: var(--font-display); font-size: 1.1rem; color: white;
  display: flex; align-items: center; gap: 8px;
}
.app-tabs {
  display: flex; gap: 4px;
  background: rgba(255,255,255,0.15);
  padding: 4px; border-radius: 10px;
}
.app-tab {
  padding: 5px 12px; border-radius: 7px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.75rem;
  color: rgba(255,255,255,0.7); cursor: pointer; transition: var(--transition);
}
.app-tab.active {
  background: white; color: var(--secondary);
}
.app-body {
  display: flex; gap: 0;
}
.wheel-panel {
  flex: 1; padding: 20px;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.sidebar-panel {
  width: 220px; border-left: 2px solid var(--border);
  background: var(--bg);
  display: flex; flex-direction: column;
  height: 580px; overflow: hidden;
}
.sidebar-section {
  padding: 12px 16px;
  border-bottom: 1.5px solid var(--border);
}
.sidebar-section-title {
  font-family: var(--font-ui); font-weight: 800; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 1.5px; color: var(--text3);
  margin-bottom: 8px;
}

/* ===== WHEEL CANVAS ===== */
.wheel-wrapper {
  position: relative; display: flex;
  align-items: center; justify-content: center;
}
.wheel-wrapper canvas {
  border-radius: 50%;
  box-shadow: 0 10px 40px var(--shadow);
  display: block;
}
.wheel-pointer {
  position: absolute; top: -18px; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-top: 30px solid var(--primary);
  filter: drop-shadow(0 4px 8px rgba(255,107,53,0.5));
  z-index: 10;
}
.wheel-center-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #FF8C42);
  color: white; font-family: var(--font-display); font-size: 0.7rem;
  box-shadow: 0 4px 15px rgba(255,107,53,0.5);
  transition: var(--transition);
  z-index: 10; cursor: pointer; border: 3px solid white;
  display: flex; align-items: center; justify-content: center;
}
.wheel-center-btn:hover { transform: translate(-50%, -50%) scale(1.1); }

.spin-btn {
  background: linear-gradient(135deg, var(--secondary), #8B7CF6);
  color: white; padding: 13px 32px;
  border-radius: 50px;
  font-family: var(--font-ui); font-weight: 800; font-size: 0.95rem;
  box-shadow: 0 6px 20px rgba(108,99,255,0.35);
  transition: var(--transition);
  display: flex; align-items: center; gap: 8px;
  letter-spacing: 0.3px;
}
.spin-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(108,99,255,0.45);
}
.spin-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Wheel type selector */
.wheel-types {
  display: flex; gap: 6px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 4px;
}
.wheel-type-btn {
  padding: 5px 12px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.72rem;
  border: 2px solid var(--border);
  color: var(--text2); transition: var(--transition);
  background: var(--surface);
}
.wheel-type-btn.active {
  background: var(--secondary); color: white; border-color: var(--secondary);
}

/* ===== ENTRIES LIST ===== */
.entries-list {
  display: flex; flex-direction: column; gap: 4px;
  padding: 8px 12px;
  flex: 0 0 auto;
  height: 200px;
  overflow-y: auto;
}
.entry-row {
  display: flex; align-items: center; gap: 6px;
}
.entry-color {
  width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0;
}
.entry-input {
  flex: 1; padding: 5px 8px;
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: 7px; font-size: 0.8rem; color: var(--text);
  transition: var(--transition);
  width: 100%;
}
.entry-input:focus { outline: none; border-color: var(--secondary); }
.entry-img-btn {
  width: 26px; height: 26px;
  border-radius: 6px; border: 1.5px solid var(--border);
  background: var(--bg); display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; cursor: pointer; transition: var(--transition);
  flex-shrink: 0; overflow: hidden;
}
.entry-img-btn:hover { border-color: var(--accent2); background: rgba(6,214,160,0.1); }
.entry-img-btn img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }
.entry-del {
  width: 22px; height: 22px; border-radius: 5px;
  color: var(--text3); font-size: 0.85rem; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); cursor: pointer; padding: 0;
}
.entry-del:hover { background: rgba(239,71,111,0.1); color: var(--accent3); }

.add-entry-btn {
  margin: 8px 12px; padding: 8px;
  border-radius: 8px; border: 2px dashed var(--border);
  font-family: var(--font-ui); font-weight: 700; font-size: 0.78rem;
  color: var(--text3); transition: var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 5px;
}
.add-entry-btn:hover { border-color: var(--secondary); color: var(--secondary); background: rgba(108,99,255,0.05); }

/* Settings controls */
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px; gap: 8px;
}
.setting-label {
  font-family: var(--font-ui); font-weight: 600; font-size: 0.75rem;
  color: var(--text2);
}
.setting-control {
  display: flex; gap: 4px;
}
.mini-btn {
  padding: 4px 8px; border-radius: 6px;
  font-size: 0.72rem; font-weight: 700;
  border: 1.5px solid var(--border);
  color: var(--text2); transition: var(--transition);
  background: var(--surface);
}
.mini-btn.active, .mini-btn:hover {
  background: var(--secondary); color: white; border-color: var(--secondary);
}
input[type="range"].mini-range {
  width: 80px; accent-color: var(--secondary);
}
select.mini-select {
  padding: 4px 6px; border-radius: 6px;
  border: 1.5px solid var(--border); font-size: 0.72rem;
  color: var(--text2); background: var(--surface); font-family: var(--font-ui);
}

/* History */
.history-list {
  display: flex; flex-direction: column; gap: 4px;
  padding: 8px 12px;
  flex: 0 0 auto;
  height: 108px;
  overflow-y: auto;
}
.history-item {
  font-family: var(--font-ui); font-size: 0.76rem;
  padding: 5px 8px; border-radius: 6px;
  display: flex; align-items: center; gap: 6px;
  background: var(--surface); border: 1.5px solid var(--border);
}
.history-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.history-text { flex: 1; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-count {
  font-size: 0.68rem; color: var(--text3); font-weight: 700;
  background: var(--bg2); padding: 1px 6px; border-radius: 10px;
}

/* Winner overlay */
.winner-overlay {
  display: none;
  position: absolute; inset: 0;
  background: rgba(255,251,247,0.96);
  backdrop-filter: blur(6px);
  border-radius: 28px;
  flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; z-index: 100; padding: 24px;
  text-align: center;
}
.winner-overlay.show { display: flex; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.winner-emoji { font-size: 3.5rem; line-height: 1; }
.winner-label {
  font-family: var(--font-ui); font-weight: 800; font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 2px; color: var(--text3);
}
.winner-text {
  font-family: var(--font-display); font-size: 2rem;
  color: var(--text); line-height: 1.2;
}
.winner-img {
  width: 80px; height: 80px; border-radius: 12px; object-fit: cover;
  box-shadow: 0 8px 24px var(--shadow);
}
.winner-actions { display: flex; gap: 10px; }
.winner-again { 
  background: linear-gradient(135deg, var(--secondary), #8B7CF6);
  color: white; padding: 10px 22px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 800; font-size: 0.85rem;
}
.winner-close {
  background: var(--bg2); color: var(--text2);
  padding: 10px 22px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.85rem;
  border: 2px solid var(--border);
}

/* Confetti particles */
.confetti-container {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 99;
  border-radius: 28px;
}
.confetti-piece {
  position: absolute; width: 8px; height: 8px;
  animation: confettiFall linear forwards;
  opacity: 0;
}
@keyframes confettiFall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(600px) rotate(720deg); opacity: 0; }
}

/* ===== BACKGROUND BLOBS ===== */
.blob {
  position: absolute; border-radius: 50%; filter: blur(60px);
  opacity: 0.35; pointer-events: none; animation: blobMove 8s ease-in-out infinite alternate;
}
@keyframes blobMove {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 20px) scale(1.05); }
}

/* ===== FEATURES SECTION ===== */
#features {
  padding: 100px 0;
  background: var(--surface);
}
.features-header { text-align: center; margin-bottom: 60px; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover {
  border-color: var(--secondary);
  box-shadow: 0 12px 40px var(--shadow);
  transform: translateY(-4px);
}
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin-bottom: 20px;
}
.feature-title {
  font-family: var(--font-display); font-size: 1.3rem;
  margin-bottom: 10px;
}
.feature-desc {
  color: var(--text2); font-size: 0.92rem; line-height: 1.7;
}

/* ===== HOW IT WORKS ===== */
#how-it-works {
  padding: 100px 0;
  background: linear-gradient(160deg, var(--bg) 0%, #EEF0FF 100%);
}
.how-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}
.steps-list { display: flex; flex-direction: column; gap: 28px; }
.step-item {
  display: flex; gap: 20px; align-items: flex-start;
}
.step-num {
  width: 48px; height: 48px; border-radius: 14px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--secondary), #8B7CF6);
  color: white; font-family: var(--font-display); font-size: 1.3rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(108,99,255,0.3);
}
.step-content { flex: 1; }
.step-title {
  font-family: var(--font-display); font-size: 1.2rem;
  margin-bottom: 6px;
}
.step-desc { color: var(--text2); font-size: 0.92rem; line-height: 1.65; }

.how-visual {
  position: relative;
}
.how-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 20px 60px var(--shadow);
  border: 2px solid var(--border);
}
.how-card-title {
  font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.use-case-chips {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.chip {
  padding: 8px 16px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.8rem;
  transition: var(--transition); cursor: default;
}
.chip-orange { background: rgba(255,107,53,0.1); color: var(--primary); border: 1.5px solid rgba(255,107,53,0.2); }
.chip-purple { background: rgba(108,99,255,0.1); color: var(--secondary); border: 1.5px solid rgba(108,99,255,0.2); }
.chip-green { background: rgba(6,214,160,0.1); color: #00A878; border: 1.5px solid rgba(6,214,160,0.2); }
.chip-red { background: rgba(239,71,111,0.1); color: var(--accent3); border: 1.5px solid rgba(239,71,111,0.2); }
.chip-blue { background: rgba(17,138,178,0.1); color: var(--accent4); border: 1.5px solid rgba(17,138,178,0.2); }
.chip-yellow { background: rgba(255,209,102,0.2); color: #9A6800; border: 1.5px solid rgba(255,209,102,0.4); }

/* ===== WHEEL TYPES SECTION ===== */
#wheel-types-section {
  padding: 100px 0;
  background: var(--surface);
}
.wheel-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.wheel-type-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.wheel-type-card:hover {
  border-color: var(--primary);
  box-shadow: 0 12px 40px var(--shadow2);
  transform: translateY(-5px);
}
.wt-emoji { font-size: 2.5rem; margin-bottom: 12px; }
.wt-name { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 8px; }
.wt-desc { font-size: 0.85rem; color: var(--text2); line-height: 1.6; }

/* ===== CUSTOMIZATION SECTION ===== */
#customization {
  padding: 100px 0;
  background: linear-gradient(135deg, #F0EEFF 0%, #FFF5EC 100%);
}
.custom-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.custom-features { display: flex; flex-direction: column; gap: 20px; }
.custom-feature {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px;
  background: var(--surface); border-radius: var(--radius);
  border: 2px solid var(--border);
  transition: var(--transition);
}
.custom-feature:hover { border-color: var(--secondary); box-shadow: 0 8px 24px var(--shadow); }
.cf-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
}
.cf-title { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 4px; }
.cf-desc { font-size: 0.85rem; color: var(--text2); line-height: 1.6; }

.custom-demo {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 20px 60px var(--shadow);
  border: 2px solid var(--border);
}
.palette-title {
  font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 14px;
}
.palettes { display: flex; flex-direction: column; gap: 10px; }
.palette-row {
  display: flex; gap: 6px; align-items: center;
}
.palette-name {
  font-size: 0.78rem; font-weight: 700; color: var(--text2);
  width: 80px; font-family: var(--font-ui);
}
.palette-swatches { display: flex; gap: 4px; }
.swatch {
  width: 24px; height: 24px; border-radius: 6px;
  border: 2px solid rgba(255,255,255,0.5);
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}

/* ===== FAQ SECTION ===== */
#faq {
  padding: 100px 0;
  background: var(--surface);
}
.faq-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 50px;
}
.faq-item {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--secondary); }
.faq-q {
  padding: 20px 24px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; gap: 12px;
}
.faq-q-text {
  font-family: var(--font-ui); font-weight: 700; font-size: 0.92rem;
  color: var(--text);
}
.faq-icon {
  width: 28px; height: 28px; border-radius: 8px;
  background: rgba(108,99,255,0.1); color: var(--secondary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 1.1rem;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--secondary); color: white; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.open .faq-a { max-height: 200px; }
.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 0.88rem; color: var(--text2); line-height: 1.7;
}

/* ===== USE CASES SECTION ===== */
#use-cases {
  padding: 100px 0;
  background: linear-gradient(160deg, #FFF5EC 0%, #F0EEFF 100%);
}
.use-cases-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin-top: 50px;
}
.use-case-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 2px solid var(--border);
  transition: var(--transition);
}
.use-case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px var(--shadow);
  border-color: transparent;
}
.uc-icon { font-size: 2.2rem; margin-bottom: 14px; }
.uc-title { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 8px; }
.uc-desc { font-size: 0.88rem; color: var(--text2); line-height: 1.7; margin-bottom: 14px; }
.uc-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.uc-tag {
  padding: 4px 10px; border-radius: 50px; font-size: 0.72rem;
  font-weight: 800; font-family: var(--font-ui); text-transform: uppercase; letter-spacing: 0.5px;
}

/* ===== TIPS SECTION ===== */
#tips {
  padding: 100px 0;
  background: var(--surface);
}
.tips-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px; margin-top: 50px;
}
.tip-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  transition: var(--transition);
  background: var(--bg);
  position: relative; overflow: hidden;
}
.tip-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px var(--shadow); }
.tip-num {
  font-family: var(--font-display); font-size: 4rem; line-height: 1;
  opacity: 0.07; position: absolute; top: 10px; right: 16px;
  color: var(--secondary);
}
.tip-icon { font-size: 1.8rem; margin-bottom: 12px; }
.tip-title { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 8px; }
.tip-text { font-size: 0.87rem; color: var(--text2); line-height: 1.7; }

/* ===== CTA SECTION ===== */
#cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  position: relative; overflow: hidden;
}
.cta-inner {
  text-align: center; position: relative; z-index: 1;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  color: white; margin-bottom: 16px; line-height: 1.1;
}
.cta-sub {
  font-size: 1.1rem; color: rgba(255,255,255,0.85);
  margin-bottom: 36px; max-width: 540px; margin-left: auto; margin-right: auto;
  line-height: 1.7;
}
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-white {
  display: inline-flex; align-items: center; gap: 8px;
  background: white; color: var(--secondary);
  font-family: var(--font-ui); font-weight: 800; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 50px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
  transition: var(--transition);
}
.btn-white:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0,0,0,0.25); }
.btn-outline-white {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: white;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.95rem;
  padding: 13px 26px; border-radius: 50px;
  border: 2px solid rgba(255,255,255,0.5);
  transition: var(--transition);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: white; }

/* ===== FOOTER ===== */
#site-footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
}
.footer-top {
  padding: 60px 0 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand { }
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 1.6rem; color: white;
  margin-bottom: 14px;
}
.footer-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: white;
}
.footer-tagline { font-size: 0.88rem; line-height: 1.7; max-width: 300px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 36px; height: 36px; border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem; color: rgba(255,255,255,0.6);
  transition: var(--transition); cursor: pointer;
}
.social-btn:hover { background: var(--secondary); color: white; }
.footer-col-title {
  font-family: var(--font-ui); font-weight: 800; font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 1.5px;
  color: white; margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  font-size: 0.87rem; color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent1); padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.footer-copy { font-size: 0.82rem; }
.footer-legal {
  display: flex; gap: 16px;
}
.footer-legal a { font-size: 0.82rem; color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-legal a:hover { color: var(--accent1); }

/* ===== FLOATING PARTICLES ===== */
.particle {
  position: fixed; pointer-events: none;
  border-radius: 50%; opacity: 0.4;
  animation: particleFloat linear infinite;
  z-index: -1;
}
@keyframes particleFloat {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.4; }
  100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-app { max-width: 600px; margin: 0 auto; }
  .how-inner { grid-template-columns: 1fr; }
  .custom-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-title { font-size: 2.2rem; }
  .section-title { font-size: 1.9rem; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .app-body { flex-direction: column; }
  .sidebar-panel { width: 100%; max-height: 280px; border-left: none; border-top: 2px solid var(--border); }
  #hero { padding: 40px 0 30px; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .hero-stats { gap: 16px; }
  .wheel-types { gap: 4px; }
  .app-tabs { flex-wrap: wrap; }
}

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--text); color: white;
  padding: 12px 24px; border-radius: 50px;
  font-family: var(--font-ui); font-weight: 700; font-size: 0.88rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  z-index: 9999; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex; align-items: center; gap: 8px;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ===== SOUND TOGGLE ===== */
.sound-toggle {
  position: fixed; bottom: 24px; right: 24px; z-index: 100;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer;
  box-shadow: 0 4px 16px var(--shadow);
  transition: var(--transition);
}
.sound-toggle:hover { background: var(--secondary); color: white; border-color: var(--secondary); }