/* =============================================
   Quickq Tech — Warm Amber Tech Studio Theme
   ============================================= */

:root {
  --bg: #0A0A0A;
  --surface: #141414;
  --surface-2: #1C1C1C;
  --border: #272727;
  --border-light: #333333;
  --primary: #F5A623;
  --primary-dark: #C47D0A;
  --primary-light: #FFD080;
  --accent: #FF6B35;
  --text: #F0F0F0;
  --text-secondary: #999999;
  --text-muted: #666666;
  --radius: 10px;
  --radius-lg: 16px;
  --transition: .25s;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, 'Segoe UI', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ======= HEADER ======= */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,10,.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245,166,35,.08);
  transition: all var(--transition);
}
.header.scrolled {
  background: rgba(10,10,10,.95);
  border-bottom-color: rgba(245,166,35,.15);
}
.header-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; gap: 32px;
}
.header-brand {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.1rem; font-weight: 700; color: #fff; text-decoration: none;
  flex-shrink: 0;
}
.brand-icon { font-size: 1.2rem; }
.brand-name { color: var(--primary); }
.header-nav {
  display: flex; align-items: center; gap: 4px; margin-left: auto;
}
.header-nav a {
  color: #aaa; text-decoration: none; font-size: .875rem;
  padding: 6px 12px; border-radius: 8px;
  transition: all var(--transition);
}
.header-nav a:hover { color: #fff; background: rgba(255,255,255,.06); }
.header-nav a.nav-cta {
  background: var(--primary); color: #0A0A0A; font-weight: 600;
  margin-left: 8px; padding: 6px 16px;
}
.header-nav a.nav-cta:hover { background: var(--primary-light); color: #0A0A0A; }
.header-nav a.nav-cta.active { background: var(--primary-dark); color: #fff; }
.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px; margin-left: auto;
}
.menu-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }

/* ======= MOBILE NAV ======= */
.mobile-nav {
  display: none; flex-direction: column;
  background: rgba(10,10,10,.97); border-top: 1px solid var(--border);
  padding: 12px 0;
}
.mobile-nav a {
  color: #bbb; text-decoration: none; font-size: 1rem;
  padding: 12px 24px; border-bottom: 1px solid var(--border);
}
.mobile-nav a:hover { color: var(--primary); }
@media(max-width:768px) {
  .header-nav { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav.open { display: flex; }
}

/* ======= LAYOUT ======= */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--surface); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; background: rgba(245,166,35,.12);
  border: 1px solid rgba(245,166,35,.25); color: var(--primary);
  font-size: .75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 14px; border-radius: 100px; margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800;
  color: #fff; line-height: 1.2; margin-bottom: 16px;
}
.section-desc { color: var(--text-secondary); font-size: 1rem; max-width: 560px; margin: 0 auto; }

/* ======= GRADIENT TEXT ======= */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ======= HERO ======= */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(245,166,35,.12) 0%, transparent 60%),
              radial-gradient(ellipse 50% 40% at 80% 60%, rgba(255,107,53,.06) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245,166,35,.1); border: 1px solid rgba(245,166,35,.2);
  color: var(--primary); font-size: .8rem; font-weight: 600;
  padding: 6px 16px; border-radius: 100px; margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.5rem, 7vw, 5rem); font-weight: 900;
  color: #fff; line-height: 1.08; margin-bottom: 24px;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-secondary);
  max-width: 520px; margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  max-width: 560px;
}
.hero-stat-value {
  font-size: 1.5rem; font-weight: 800; color: var(--primary);
}
.hero-stat-label { font-size: .75rem; color: var(--text-muted); }

/* ======= BUTTONS ======= */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: var(--radius); font-size: .9rem;
  font-weight: 600; text-decoration: none; border: none; cursor: pointer;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--primary); color: #0A0A0A;
}
.btn-primary:hover { background: var(--primary-light); transform: translateY(-1px); }
.btn-secondary {
  background: rgba(255,255,255,.07); color: #fff;
  border: 1px solid rgba(255,255,255,.12);
}
.btn-secondary:hover { background: rgba(255,255,255,.12); }
.btn-lg { padding: 13px 28px; font-size: .95rem; }
.btn-sm { padding: 7px 14px; font-size: .8rem; }
@media(max-width:768px) {
  .hero-stats { grid-template-columns: repeat(2,1fr); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* ======= FEATURE CARDS ======= */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover { border-color: rgba(245,166,35,.25); transform: translateY(-4px); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 44px; height: 44px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 16px;
}
.feature-icon.blue { background: rgba(59,130,246,.12); }
.feature-icon.amber { background: rgba(245,166,35,.12); }
.feature-icon.green { background: rgba(34,197,94,.12); }
.feature-icon.red { background: rgba(239,68,68,.12); }
.feature-icon.purple { background: rgba(168,85,247,.12); }
.feature-icon.orange { background: rgba(249,115,22,.12); }
.feature-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-desc { font-size: .875rem; color: var(--text-secondary); }
.card-tag {
  display: inline-block; margin-top: 12px; font-size: .7rem;
  font-weight: 600; color: var(--primary);
  background: rgba(245,166,35,.08); padding: 3px 10px;
  border-radius: 100px; border: 1px solid rgba(245,166,35,.2);
}
@media(max-width:900px) { .features-grid { grid-template-columns: repeat(2,1fr); } }
@media(max-width:580px) { .features-grid { grid-template-columns: 1fr; } }

/* ======= STATS ======= */
.stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.stat-card {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 20px; text-align: center;
  transition: all var(--transition);
}
.stat-card:hover { border-color: rgba(245,166,35,.3); transform: translateY(-2px); }
.stat-icon { font-size: 1.8rem; margin-bottom: 10px; }
.stat-value { font-size: 2rem; font-weight: 900; color: var(--primary); }
.stat-label { font-size: .8rem; color: var(--text-secondary); margin-top: 4px; }
@media(max-width:768px) { .stats-row { grid-template-columns: repeat(2,1fr); } }

/* ======= PLATFORM CARDS ======= */
.platform-grid {
  display: grid; grid-template-columns: repeat(5,1fr); gap: 16px;
}
.platform-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 16px; text-align: center;
  text-decoration: none; color: inherit;
  transition: all var(--transition);
}
.platform-card:hover { border-color: rgba(245,166,35,.35); transform: translateY(-3px); background: var(--surface-2); }
.platform-icon { font-size: 2.4rem; display: block; margin-bottom: 10px; }
.platform-name { font-size: .9rem; font-weight: 700; color: #fff; display: block; }
.platform-version { font-size: .75rem; color: var(--text-muted); display: block; margin-top: 4px; }
@media(max-width:900px) { .platform-grid { grid-template-columns: repeat(3,1fr); } }
@media(max-width:580px) { .platform-grid { grid-template-columns: repeat(2,1fr); } }

/* ======= COMPARE TABLE ======= */
.compare-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.compare-table {
  width: 100%; border-collapse: collapse; font-size: .875rem;
}
.compare-table thead th {
  background: var(--surface-2); padding: 16px 20px;
  text-align: center; font-size: .8rem; font-weight: 700; color: var(--primary);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.compare-table tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
.compare-table tbody tr:hover { background: rgba(245,166,35,.03); }
.compare-table tbody td { padding: 14px 20px; color: var(--text-secondary); }
.compare-table tbody td:first-child { font-weight: 600; color: #fff; text-align: left; }
.compare-table tbody td:not(:first-child) { text-align: center; }
.compare-check { color: #22c55e; font-size: 1.1rem; }
.compare-cross { color: var(--text-muted); }
.compare-table tfoot td { background: var(--surface-2); padding: 14px 20px; text-align: center; }

/* ======= STEPS ======= */
.steps-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 20px;
  position: relative;
}
.steps-grid::before {
  content: ''; position: absolute; top: 28px; left: calc(16.67% + 20px);
  right: calc(16.67% + 20px); height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,166,35,.3), transparent);
}
.step-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 24px; position: relative; }
.step-number {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #0A0A0A; font-size: 1.2rem; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.step-title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.step-desc { font-size: .875rem; color: var(--text-secondary); }
@media(max-width:768px) { .steps-grid { grid-template-columns: 1fr; } .steps-grid::before { display: none; } }

/* ======= CTA BOX ======= */
.cta-box {
  background: linear-gradient(135deg, rgba(245,166,35,.15), rgba(255,107,53,.1));
  border: 1px solid rgba(245,166,35,.25);
  border-radius: var(--radius-lg); padding: 56px 40px; text-align: center;
}
.cta-box h2 { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-box p { color: var(--text-secondary); margin-bottom: 28px; }
@media(max-width:580px) { .cta-box { padding: 36px 20px; } }

/* ======= FAQ ======= */
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item[open] { border-color: rgba(245,166,35,.3); }
.faq-item summary {
  padding: 18px 24px; font-weight: 600; cursor: pointer;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
  font-size: .95rem; color: #fff;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; font-size: 1.2rem; color: var(--primary);
  transition: transform var(--transition); font-weight: 300;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--primary); }
.faq-answer {
  padding: 0 24px 20px; font-size: .875rem; color: var(--text-secondary);
  line-height: 1.8; border-top: 1px solid var(--border); padding-top: 16px;
}

/* ======= FRIEND LINKS ======= */
.friend-links {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
}
.friend-links h3 {
  font-size: .8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-muted); margin-bottom: 20px;
}
.friend-links-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.friend-link {
  font-size: .8rem; color: var(--text-secondary); text-decoration: none;
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 5px 14px; border-radius: 100px;
  transition: all var(--transition);
}
.friend-link:hover { color: var(--primary); border-color: rgba(245,166,35,.3); background: rgba(245,166,35,.05); }

/* ======= FOOTER ======= */
.footer {
  background: #080808; border-top: 1px solid var(--border);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px;
}
.footer-brand h3 { font-size: 1.1rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.footer-brand p { font-size: .875rem; color: var(--text-secondary); max-width: 280px; }
.footer-col h4 { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-secondary); text-decoration: none; font-size: .875rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; font-size: .8rem; color: var(--text-muted); }
.footer-disclaimer { margin-top: 12px; font-size: .75rem; color: var(--text-muted); }
@media(max-width:768px) { .footer-grid { grid-template-columns: repeat(2,1fr); } }
@media(max-width:480px) { .footer-grid { grid-template-columns: 1fr; } }

/* ======= CARD ======= */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
}

/* ======= DIVIDER ======= */
.divider { height: 1px; background: var(--border); margin: 0 24px; }

/* ======= SCROLL TOP ======= */
#scrollTop {
  position: fixed; bottom: 24px; right: 24px; width: 40px; height: 40px;
  border-radius: 50%; background: var(--primary); color: #0A0A0A;
  border: none; cursor: pointer; font-size: .8rem;
  display: none; align-items: center; justify-content: center;
  transition: all var(--transition); z-index: 999;
}
#scrollTop.visible { display: flex; }
#scrollTop:hover { background: var(--primary-light); transform: translateY(-2px); }

/* ======= MODAL ======= */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,.75); backdrop-filter: blur(8px);
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface-2); border: 1px solid rgba(245,166,35,.2);
  border-radius: var(--radius-lg); padding: 36px; max-width: 400px; width: 100%;
  text-align: center; position: relative;
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
  animation: modal-in .3s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(.92) translateY(16px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute; top: 12px; right: 12px; background: none; border: none;
  color: var(--text-muted); font-size: 1.1rem; cursor: pointer; padding: 4px 8px;
}
.modal-close:hover { color: #fff; }
.modal-icon { font-size: 2.4rem; margin-bottom: 12px; }
.modal h3 { font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 6px; }
.modal p { color: var(--text-secondary); font-size: .875rem; margin-bottom: 8px; }
.modal-version { font-size: .75rem; color: var(--primary); font-weight: 600; margin-bottom: 20px; }
.modal-progress { height: 4px; background: rgba(255,255,255,.08); border-radius: 2px; overflow: hidden; margin-bottom: 12px; }
.modal-progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0; border-radius: 2px; transition: width .1s linear;
}
.modal-hint { font-size: .75rem; color: var(--text-muted); }

/* ======= INFO BOX ======= */
.info-box {
  background: rgba(245,166,35,.06); border: 1px solid rgba(245,166,35,.2);
  border-radius: var(--radius); padding: 16px 20px;
  font-size: .875rem; color: var(--text-secondary);
}
.info-box strong { color: var(--primary); }

/* ======= FADE IN ======= */
.fade-in {
  opacity: 0; transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }