:root {
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-blur: blur(26px) saturate(180%);
  --accent-blue: #007aff;
  --accent-purple: #5e5ce6;
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --bg-page: #f5f5f7;
  --radius-3xl: 32px;
  --radius-2xl: 24px;
  --radius-xl: 18px;
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.04), 0 0 0 1px rgba(0,0,0,0.02);
  --transition-spring: cubic-bezier(0.23, 1, 0.32, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

header {
  position: sticky; top: 0; z-index: 100;
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  background: rgba(255,255,255,0.68);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #1d1d1f; font-weight: 700; font-size: 1.25rem; }
.logo img { width: 38px; height: 38px; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.btn-glass {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: #1d1d1f; padding: 10px 22px; border-radius: 100px; font-weight: 600;
  text-decoration: none; font-size: 0.9rem; transition: all 0.3s var(--transition-spring);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03); display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
}
.btn-glass:hover { background: #fff; border-color: rgba(0,0,0,0.15); box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: scale(1.02); }
.btn-primary {
  background: #007aff; color: #fff; border: none; padding: 12px 26px; border-radius: 100px;
  font-weight: 600; text-decoration: none; transition: all 0.3s var(--transition-spring);
  display: inline-flex; align-items: center; gap: 6px; box-shadow: 0 8px 20px rgba(0,122,255,0.25); cursor: pointer;
}
.btn-primary:hover { background: #0066d6; box-shadow: 0 12px 28px rgba(0,122,255,0.35); transform: translateY(-2px); }

.animate {
  opacity: 1 !important;
  transform: none !important;
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}
html.js-ready .animate { opacity: 0; transform: translateY(30px); }
html.js-ready .animate.visible { opacity: 1; transform: translateY(0); }

.section-header { text-align: center; margin-bottom: 48px; }
.section-title { font-size: 2.4rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.5px; }
.section-title span { background: linear-gradient(135deg, #007aff, #5e5ce6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-subtitle { color: var(--text-secondary); max-width: 500px; margin: 0 auto; }

.hero {
  text-align: center; padding: 120px 0 80px;
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,122,255,0.08) 0%, transparent 70%);
}
.hero::before {
  content: ''; position: absolute; top: -50px; left: -50px; width: 200px; height: 200px;
  background: rgba(94,92,230,0.1); border-radius: 50%; filter: blur(80px); z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.badge { display: inline-flex; align-items: center; gap: 6px; background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 100px; padding: 6px 18px; color: #007aff; font-size: 0.8rem; font-weight: 600; margin-bottom: 24px; box-shadow: var(--shadow-glass); }
.hero h1 { font-size: clamp(3rem, 7vw, 5.5rem); font-weight: 800; line-height: 1.08; letter-spacing: -2px; margin-bottom: 20px; }
.gradient-text { background: linear-gradient(135deg, #007aff, #5e5ce6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { color: var(--text-secondary); max-width: 650px; margin: 0 auto 36px; font-size: 1.2rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.stats-row { display: flex; justify-content: center; gap: 80px; margin-top: 60px; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-number { font-size: 2.8rem; font-weight: 800; background: linear-gradient(135deg, #007aff, #5e5ce6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { color: #86868b; font-size: 0.85rem; font-weight: 500; text-transform: uppercase; letter-spacing: 1px; }

.game-support { padding: 80px 0; }
.games-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 24px; }
.game-card {
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-2xl);
  padding: 28px 18px; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 8px; transition: all 0.4s var(--transition-spring);
  box-shadow: var(--shadow-glass); cursor: default;
}
.game-card:hover { transform: translateY(-6px); border-color: rgba(0,122,255,0.4); box-shadow: 0 20px 35px -10px rgba(0,122,255,0.15); background: rgba(255,255,255,0.85); }
.game-card img { max-width: 80px; max-height: 60px; object-fit: contain; transition: 0.3s; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.05)); }
.game-card:hover img { transform: scale(1.1); filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1)); }
.game-name { font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }

.features { padding: 80px 0; }
.bento-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.bento-card { background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-3xl); padding: 40px 32px; transition: all 0.4s var(--transition-spring); box-shadow: var(--shadow-glass); }
.bento-card:hover { transform: translateY(-8px); border-color: rgba(0,122,255,0.3); box-shadow: 0 25px 45px -12px rgba(0,122,255,0.1); background: rgba(255,255,255,0.85); }
.bento-card i { font-size: 2.4rem; color: #007aff; background: rgba(0,122,255,0.08); padding: 16px; border-radius: 20px; margin-bottom: 24px; display: inline-block; }
.bento-card h3 { margin-bottom: 8px; font-size: 1.3rem; font-weight: 700; }
.bento-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }
.bento-large { grid-column: span 2; }

.steps-section { padding: 80px 0; }
.steps-grid { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.step-card { background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-2xl); padding: 36px 24px; flex: 1 1 200px; max-width: 220px; text-align: center; box-shadow: var(--shadow-glass); transition: all 0.4s; }
.step-card:hover { transform: translateY(-8px); border-color: #007aff; }
.step-number { width: 44px; height: 44px; background: #007aff; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.2rem; margin: 0 auto 16px; box-shadow: 0 4px 12px rgba(0,122,255,0.3); }
.step-card h3 { font-weight: 700; margin-bottom: 8px; font-size: 1rem; }
.step-card p { color: var(--text-secondary); font-size: 0.85rem; }

.json-section { padding: 80px 0; }
.json-container { background: #1e1e1e; border-radius: var(--radius-2xl); overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.15); max-width: 720px; margin: 0 auto; }
.json-header { background: #2d2d2d; padding: 12px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid #3e3e3e; }
.json-dot { width: 12px; height: 12px; border-radius: 50%; }
.json-dot.red { background: #ff5f56; }
.json-dot.yellow { background: #ffbd2e; }
.json-dot.green { background: #27c93f; }
.json-title { color: #aaa; font-size: 0.8rem; margin-left: 8px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.json-body { padding: 20px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; color: #d4d4d4; overflow-x: auto; white-space: pre; line-height: 1.6; }

.faq { padding: 80px 0; }
.accordion { max-width: 800px; margin: 0 auto; }
.accordion-item { background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-xl); margin-bottom: 16px; box-shadow: var(--shadow-glass); overflow: hidden; }
.accordion-header { padding: 20px 24px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background 0.2s; }
.accordion-header:hover { background: rgba(0,0,0,0.02); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 24px; color: var(--text-secondary); line-height: 1.6; }
.accordion-content.open { max-height: 300px; padding-bottom: 20px; }
.accordion-header i.fa-chevron-down { transition: transform 0.3s; }
.accordion-header.active i.fa-chevron-down { transform: rotate(180deg); }

.testimonials { padding: 80px 0; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.testimonial-card { background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-2xl); padding: 28px; box-shadow: var(--shadow-glass); transition: 0.3s; }
.testimonial-card:hover { transform: translateY(-5px); border-color: rgba(0,122,255,0.3); }
.stars { color: #fbbf24; margin-bottom: 12px; }
.testimonial-text { color: var(--text-secondary); margin-bottom: 16px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.avatar { width: 40px; height: 40px; border-radius: 50%; background: #007aff; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; }
.author-info h4 { font-weight: 600; margin-bottom: 2px; }
.author-info span { font-size: 0.85rem; color: #86868b; }

.key-grid-section { padding: 80px 0; }
.lbl { text-align: center; font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.lbl span { background: linear-gradient(135deg, #007aff, #5e5ce6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.key-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.kc {
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-2xl);
  padding: 28px 24px; text-align: center; transition: all 0.4s var(--transition-spring);
  box-shadow: var(--shadow-glass); position: relative; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; cursor: pointer;
}
.kc:hover { transform: translateY(-8px); border-color: rgba(0,122,255,0.4); box-shadow: 0 25px 40px -12px rgba(0,122,255,0.15); }
.kc-icon { width: 50px; height: 50px; margin: 0 auto 12px; color: #007aff; }
.kc-badge { display: inline-block; padding: 4px 12px; border-radius: 100px; font-size: 0.7rem; font-weight: 600; margin-bottom: 8px; background: rgba(0,122,255,0.1); color: #007aff; }
.kc-name { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; }
.kc-price { font-size: 2.2rem; font-weight: 800; color: #007aff; }
.kc-price small { font-size: 0.9rem; font-weight: 500; }
.kc-perday { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 12px; }
.kc-div { height: 1px; width: 100%; background: rgba(0,0,0,0.05); margin: 12px 0; }
.kc-desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 16px; flex-grow: 1; }
.kc-btn {
  background: #007aff; color: #fff; border: none; padding: 12px 24px; border-radius: 100px;
  font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.3s; box-shadow: 0 6px 16px rgba(0,122,255,0.3);
}
.kc-btn svg { width: 18px; height: 18px; }
.kc-btn:hover { background: #0066d6; transform: scale(1.02); box-shadow: 0 10px 22px rgba(0,122,255,0.4); }
.best-seller-tag {
  position: absolute; top: 12px; right: -30px; background: #fbbf24; color: #1d1d1f;
  padding: 4px 30px; font-size: 0.7rem; font-weight: 700; transform: rotate(45deg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* --- VÌ SAO CHỌN PHANMEMTOOL.SITE --- */
.why-choose { padding: 80px 0; background: rgba(255,255,255,0.4); }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.why-card {
  background: #fff; border-radius: var(--radius-2xl); padding: 32px 28px;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.04);
  transition: all 0.4s var(--transition-spring);
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: flex-start; gap: 14px;
}
.why-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 45px -12px rgba(0,122,255,0.15);
  border-color: rgba(0,122,255,0.25);
}
.why-icon {
  width: 56px; height: 56px; border-radius: 18px;
  background: linear-gradient(135deg, rgba(0,122,255,0.1), rgba(94,92,230,0.1));
  display: flex; align-items: center; justify-content: center;
  color: #007aff; font-size: 1.6rem;
}
.why-card h3 { font-size: 1.15rem; font-weight: 700; margin: 0; }
.why-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin: 0; }
.why-highlight {
  background: linear-gradient(135deg, #007aff, #5e5ce6);
  color: #fff;
}
.why-highlight .why-icon {
  background: rgba(255,255,255,0.2);
  color: #fff;
}
.why-highlight h3 { color: #fff; }
.why-highlight p { color: rgba(255,255,255,0.8); }
.why-highlight:hover { box-shadow: 0 25px 45px -12px rgba(0,122,255,0.3); }

.modal-wrap { position: fixed; inset: 0; z-index: 200; display: none; }
.modal-wrap.active { display: block; }
.modal-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.3); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.modal {
  position: absolute; top: 50%; left: 50%;
  background: rgba(255,255,255,0.85); -webkit-backdrop-filter: blur(30px); backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.8); border-radius: var(--radius-3xl);
  padding: 40px 32px; text-align: center; max-width: 400px; width: 90%;
  box-shadow: 0 30px 60px rgba(0,0,0,0.2);
  transform: translate(-50%, -50%) scale(0.95); transition: transform 0.3s ease;
}
.modal-wrap.active .modal { transform: translate(-50%, -50%) scale(1); }
.modal h3 { font-size: 1.5rem; margin-bottom: 12px; }
.modal p { color: var(--text-secondary); margin-bottom: 24px; }
.modal .btn-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.toast-container { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 10000; pointer-events: none; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast { background: #1d1d1f; color: #fff; padding: 12px 20px; border-radius: 30px; font-size: 14px; font-weight: 700; display: flex; align-items: center; gap: 10px; box-shadow: 0 8px 24px rgba(0,0,0,0.3); transform: translateY(-50px) scale(0.9); opacity: 0; transition: all 0.5s cubic-bezier(0.32, 0.72, 0, 1.1); pointer-events: auto; }
.toast.show { transform: translateY(0) scale(1); opacity: 1; }

footer { background: #fff; border-top: 1px solid rgba(0,0,0,0.05); padding: 60px 0 30px; margin-top: 80px; position: relative; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
.footer-col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1.5px; color: #86868b; margin-bottom: 18px; }
.footer-col a { color: #6e6e73; text-decoration: none; font-size: 0.9rem; display: block; margin-bottom: 8px; transition: color 0.2s; }
.footer-col a:hover { color: #000; }
.footer-col ul { list-style: none; }
.social-links { display: flex; gap: 12px; margin-top: 16px; }
.social-links a { width: 38px; height: 38px; border-radius: 12px; background: #f5f5f7; display: flex; align-items: center; justify-content: center; color: #1d1d1f; transition: 0.3s; margin: 0; }
.social-links a:hover { background: #007aff; color: #fff; }
.footer-bottom { border-top: 1px solid #e5e5ea; padding-top: 24px; margin-top: 40px; display: flex; justify-content: space-between; color: #86868b; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }
.badge-online { background: #e8f8ee; color: #1d7a3d; padding: 4px 14px; border-radius: 100px; font-weight: 600; font-size: 0.8rem; display: inline-flex; align-items: center; gap: 6px; }
.footer-glow-line {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 40%; height: 2px; background: linear-gradient(135deg, #007aff, #5e5ce6);
  box-shadow: 0 0 30px rgba(0,122,255,0.3);
}

@media (max-width: 768px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-large { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 2.5rem; }
  .steps-grid { flex-direction: column; align-items: center; }
  .step-card { max-width: 100%; flex: 1 1 auto; }
  .key-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .hero { padding: 80px 0 50px; }
  section { padding: 50px 0; }
  .section-title { font-size: 1.8rem; }
  .stats-row { gap: 30px; }
  .stat-number { font-size: 2rem; }
}