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

:root {
  --primary:        #0061ff;
  --secondary:      #00c2ff;
  --gradient:       linear-gradient(135deg, #0061ff 0%, #00c2ff 100%);
  --gradient-soft:  linear-gradient(135deg, rgba(0,97,255,0.08), rgba(0,194,255,0.08));
  --bg-primary:     #fff;
  --bg-secondary:   #f8fafc;
  --bg-tertiary:    #f1f5f9;
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #64748b;
  --glass-bg:       rgba(255,255,255,0.7);
  --glass-shadow:   0 8px 32px rgba(0,97,255,0.08);
  --glass-inset:    inset 0 1px 0 rgba(255,255,255,0.6);
  --blob-opacity:   0.35;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   20px;
  --radius-2xl:  24px;
  --radius-pill: 50px;
  --transition-normal:  .3s ease;
  --transition-smooth:  .4s cubic-bezier(.4,0,.2,1);
  --transition-slow:    .8s cubic-bezier(.4,0,.2,1);
  --edge-color:   rgba(0,97,255,0.08);

  --red:   #ef4444;
  --green: #16a34a;
}

html { scroll-behavior: smooth; }

/* Page-level background: white left → blue-periwinkle right (giống ảnh gốc) */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #fff;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Blob background dải xanh bên phải – consistent toàn trang */
body::before {
  content: '';
  position: fixed;
  top: 0; right: 0;
  width: 55%;
  height: 100%;
  background: radial-gradient(ellipse 80% 90% at 100% 50%,
    rgba(0,194,255,0.18) 0%,
    rgba(0,97,255,0.12) 40%,
    transparent 75%);
  pointer-events: none;
  z-index: 0;
}

a  { color: inherit; text-decoration: none; }
strong { font-weight: 700; }
s  { text-decoration: line-through; color: var(--text-muted); }
small { font-size: 13px; color: var(--text-muted); }

/* ===========================
   CONTAINER
=========================== */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
.text-center { text-align: center; }

/* ===========================
   GRADIENT TEXT
=========================== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: var(--transition-smooth);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,97,255,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,97,255,0.4);
}
.btn-outline {
  background: rgba(255,255,255,0.9);
  color: var(--primary);
  border: 1.5px solid rgba(0,97,255,0.3);
}
.btn-outline:hover {
  background: var(--gradient-soft);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.btn-white {
  background: rgba(255,255,255,0.95);
  color: var(--primary);
  font-weight: 800;
  border: none;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.btn-lg   { padding: 14px 36px; font-size: 16px; }
.btn-full { width: 100%; font-size: 17px; padding: 16px; }

/* ===========================
   HEADER
=========================== */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 12px rgba(0,97,255,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 13px;
  padding-bottom: 13px;
}
.logo {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.nav { display: flex; gap: 28px; flex: 1; }
.nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}
.nav a:hover { color: var(--primary); }
.nav-cta { padding: 9px 22px; font-size: 14px; }
.hamburger {
  display: none;
  background: none; border: none;
  color: var(--text-primary);
  font-size: 22px; cursor: pointer;
  margin-left: auto; line-height: 1;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: #fff;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 15px; font-weight: 500;
  color: var(--text-secondary);
  padding: 13px 24px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: color var(--transition-normal), background var(--transition-normal);
}
.mobile-menu a:hover { color: var(--primary); background: var(--gradient-soft); }
.mobile-menu .btn { margin: 12px 24px 16px; width: auto; border: none; }

/* ===========================
   SECTION BASE
=========================== */
.section { padding: 96px 0; background: transparent; }
.section-alt { background: rgba(248,250,252,0.7); }

.section-head { margin-bottom: 52px; }
.section-head.text-center { text-align: center; }

/* Badge pill */
.section-badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--gradient-soft);
  border: 1px solid rgba(0,97,255,0.15);
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(26px, 4.5vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===========================
   HERO
=========================== */
.hero {
  padding: 88px 0 80px;
  text-align: center;
}
.hero-inner { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.hero-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
}
.hero-title {
  font-size: clamp(32px, 5.5vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 660px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.hero-sub strong { color: var(--text-primary); }

/* Video placeholder */
.hero-video {
  max-width: 820px;
  margin: 0 auto 20px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,97,255,0.15);
  border: 1px solid rgba(0,97,255,0.1);
  background: #1e1e2e;
  aspect-ratio: 16/9;
  position: relative;
}
.video-screen {
  width: 100%; height: 100%;
  display: flex;
  align-items: stretch;
  position: relative;
}
.video-ui {
  display: flex;
  width: 100%;
  padding: 16px;
  gap: 12px;
}
.video-sidebar {
  width: 180px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}
.vs-item {
  height: 20px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
}
.video-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
}
.vm-line {
  height: 10px;
  background: rgba(0,97,255,0.3);
  border-radius: 4px;
}
.vm-line.short { width: 65%; background: rgba(255,255,255,0.1); }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(0,97,255,0.85);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 24px rgba(0,97,255,0.4);
  cursor: pointer;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}
.video-play-btn:hover { transform: translate(-50%, -50%) scale(1.1); }
.video-duration {
  position: absolute;
  bottom: 12px; right: 16px;
  font-size: 13px; font-weight: 600;
  color: rgba(255,255,255,0.8);
}

.hero-note {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.hero-note strong { color: var(--primary); }

.hero-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-checks {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}
.check-icon {
  color: var(--green);
  font-weight: 700;
  margin-right: 4px;
}

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 760px;
  margin: 0 auto;
}
.stat-card {
  background: var(--glass-bg);
  border: 1px solid rgba(0,97,255,0.1);
  border-radius: var(--radius-xl);
  padding: 22px 14px;
  display: flex; flex-direction: column;
  align-items: center; gap: 6px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(10px);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,97,255,0.14);
}
.stat-num {
  font-size: 44px; font-weight: 900; line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; text-align: center; }

/* ===========================
   PAIN — 4 columns
=========================== */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.pain-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: var(--radius-2xl);
  padding: 26px 22px 26px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
  position: relative;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}
.pain-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,97,255,0.1);
}
.pain-num {
  position: absolute;
  top: 18px; right: 18px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 13px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.pain-card h3 {
  font-size: 16px; font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-right: 40px;
  line-height: 1.35;
}
.pain-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===========================
   FORMULAS — 5 columns
=========================== */
.formula-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.formula-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,97,255,0.1);
  border-radius: var(--radius-xl);
  padding: 20px 16px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-normal);
  position: relative;
}
.formula-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,97,255,0.14);
  border-color: rgba(0,97,255,0.25);
}
.formula-num {
  display: inline-flex;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 11px; font-weight: 800;
  align-items: center; justify-content: center;
  margin-bottom: 10px;
}
.formula-name {
  font-size: 16px; font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 5px;
}
.formula-steps {
  font-size: 12px; font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  line-height: 1.4;
}
.formula-card p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

/* ===========================
   VAULT
=========================== */
.vault-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.vault-col {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,97,255,0.1);
  border-radius: var(--radius-2xl);
  padding: 32px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
}
.vault-badge {
  display: inline-flex;
  font-size: 12px; font-weight: 800;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--gradient);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}
.vault-col h3 {
  font-size: 20px; font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.vault-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.vault-list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.6;
}
.vdot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
  margin-top: 6px;
}
.vdot-muted { background: var(--text-muted); }
.vterm {
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.vmuted { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ===========================
   BEFORE / AFTER — 2 cards
=========================== */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}
.compare-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: var(--radius-2xl);
  padding: 30px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
}
.compare-title {
  font-size: 17px; font-weight: 900;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.compare-title.bad  { color: var(--red); }
.compare-title.good { color: var(--green); }
.compare-card ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.compare-card li { font-size: 14px; color: var(--text-secondary); display: flex; gap: 10px; align-items: flex-start; line-height: 1.5; }
.x-icon { color: var(--red);   font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.v-icon { color: var(--green); font-weight: 700; flex-shrink: 0; margin-top: 1px; }

/* ===========================
   AUDIENCE
=========================== */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.audience-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,97,255,0.08);
  border-radius: var(--radius-2xl);
  padding: 30px 22px;
  text-align: center;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-normal);
}
.audience-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,97,255,0.12);
  border-color: rgba(0,97,255,0.2);
}
.audience-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-lg);
  background: var(--gradient-soft);
  border: 1px solid rgba(0,97,255,0.12);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  color: var(--primary);
}
.audience-card h3 { font-size: 15px; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; }
.audience-card p  { font-size: 13px; color: var(--text-muted); line-height: 1.65; }

/* ===========================
   TESTIMONIALS
=========================== */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testi-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,97,255,0.08);
  border-radius: var(--radius-2xl);
  padding: 28px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}
.testi-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,97,255,0.12);
}
.testi-stars { font-size: 18px; color: #f59e0b; margin-bottom: 14px; letter-spacing: 2px; }
.testi-quote {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient);
  color: #fff; font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.testi-info strong { display: block; font-size: 14px; font-weight: 700; color: var(--text-primary); }
.testi-info span   { font-size: 12px; color: var(--text-muted); }

/* ===========================
   PRICING
=========================== */
.pricing-card {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(0,97,255,0.12);
  border-radius: var(--radius-2xl);
  padding: 48px 48px 40px;
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,97,255,0.12);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}
.pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient);
}
.pricing-tag {
  display: inline-flex;
  font-size: 12px; font-weight: 800;
  letter-spacing: 0.07em;
  color: #fff;
  background: var(--gradient);
  padding: 7px 22px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}
.pricing-old {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.pricing-old s { color: var(--text-muted); }
.pricing-price {
  font-size: 68px; font-weight: 900; line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.pricing-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.pricing-features li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 15px; color: var(--text-secondary); line-height: 1.6;
}
.pricing-features li strong {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.pcheck {
  display: inline-flex;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 12px; font-weight: 800;
  align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.pricing-daily {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ===========================
   FAQ
=========================== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex; flex-direction: column; gap: 12px;
}
.faq-item {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,97,255,0.04);
  backdrop-filter: blur(8px);
  transition: border-color var(--transition-normal);
}
.faq-item.open { border-color: rgba(0,97,255,0.2); }
.faq-q {
  width: 100%; background: none; border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 15px; font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  font-family: inherit;
  transition: color var(--transition-normal);
}
.faq-q:hover { color: var(--primary); }
.faq-ico {
  font-size: 22px; font-weight: 300;
  color: var(--primary);
  flex-shrink: 0; line-height: 1;
  transition: transform var(--transition-smooth);
}
.faq-a {
  display: none;
  padding: 0 24px 18px;
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.78;
  border-top: 1px solid rgba(0,0,0,0.05);
}
.faq-a.open { display: block; }
.faq-a p { padding-top: 14px; }
.faq-a strong { color: var(--text-primary); }

/* ===========================
   CTA BANNER
=========================== */
.cta-banner {
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
.cta-inner {
  background: var(--gradient);
  border-radius: var(--radius-2xl);
  padding: 56px 48px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 24px 60px rgba(0,97,255,0.3);
}
.cta-inner h2 {
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 900;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255,255,255,0.82);
  margin-bottom: 28px;
  max-width: 540px;
  margin-left: auto; margin-right: auto;
  line-height: 1.7;
}

/* ===========================
   REGISTER FORM
=========================== */
.form-wrap {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(0,97,255,0.1);
  border-radius: var(--radius-2xl);
  padding: 40px;
  max-width: 580px;
  margin: 0 auto;
  box-shadow: 0 8px 40px rgba(0,97,255,0.1);
  backdrop-filter: blur(10px);
  text-align: center;
}
.form-title {
  font-size: 20px; font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.form-subtitle {
  font-size: 14px; color: var(--text-muted);
  margin-bottom: 24px;
}
.reg-form { text-align: left; display: flex; flex-direction: column; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label {
  font-size: 13px; font-weight: 700;
  color: var(--text-primary);
  display: flex; align-items: center; gap: 5px; flex-wrap: wrap;
}
.req  { color: var(--primary); }
.warn { font-weight: 500; color: #d97706; font-size: 12px; }
.form-field input {
  background: var(--bg-secondary);
  border: 1.5px solid rgba(0,0,0,0.09);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 15px; color: var(--text-primary);
  font-family: inherit; outline: none;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.form-field input::placeholder { color: #b0b8cc; }
.form-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,97,255,0.1);
  background: #fff;
}
.form-check {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13px; color: var(--text-muted); line-height: 1.5;
}
.form-check input { margin-top: 2px; accent-color: var(--primary); flex-shrink: 0; cursor: pointer; }
.form-check a { color: var(--primary); text-decoration: underline; }
.btn-submit { font-size: 16px; letter-spacing: 0.01em; }

/* ===========================
   TERMS
=========================== */
.terms-section {
  padding: 28px 0;
  background: rgba(248,250,252,0.7);
  border-top: 1px solid rgba(0,0,0,0.05);
  position: relative; z-index: 1;
}
.terms-section h4 {
  font-size: 13px; font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.terms-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.terms-list li {
  font-size: 13px; color: var(--text-muted);
  padding-left: 14px; position: relative; line-height: 1.6;
}
.terms-list li::before {
  content: '•'; position: absolute; left: 0;
  color: var(--primary);
}
.terms-list strong { color: var(--text-secondary); }

/* ===========================
   FOOTER
=========================== */
.footer {
  background: #fff;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: 36px 0 16px;
  position: relative; z-index: 1;
}
.footer-inner {
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap;
  gap: 20px; margin-bottom: 24px;
}
.footer-logo {
  font-size: 20px; font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-tagline { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--text-muted); transition: color var(--transition-normal); }
.footer-links a:hover { color: var(--primary); }
.footer-copy {
  text-align: center; font-size: 12px; color: var(--text-muted);
  border-top: 1px solid rgba(0,0,0,0.05); padding-top: 16px;
}

/* ===========================
   SCROLL ANIMATION
=========================== */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===========================
   HEADER RIGHT + THEME TOGGLE
=========================== */
.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.theme-toggle {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(0,97,255,0.18);
  background: var(--gradient-soft);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: var(--transition-smooth);
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--primary);
  transform: rotate(20deg) scale(1.1);
}
/* show sun in light, moon in dark */
.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark  { display: inline; }

/* ===========================
   DARK MODE VARIABLES
=========================== */
[data-theme="dark"] {
  --bg-primary:     #0f172a;
  --bg-secondary:   #1e293b;
  --bg-tertiary:    #334155;
  --text-primary:   #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted:     #94a3b8;
  --glass-bg:       rgba(30,41,59,0.85);
  --glass-shadow:   0 8px 32px rgba(0,0,0,0.4);
  --edge-color:     rgba(0,97,255,0.15);
  --gradient-soft:  linear-gradient(135deg,rgba(0,97,255,0.15),rgba(0,194,255,0.15));
}
[data-theme="dark"] body {
  background: #0f172a;
}
[data-theme="dark"] body::before {
  background: radial-gradient(ellipse 80% 90% at 100% 50%,
    rgba(0,194,255,0.12) 0%,
    rgba(0,97,255,0.08) 40%,
    transparent 75%);
}
[data-theme="dark"] .header {
  background: rgba(15,23,42,0.92);
  border-bottom-color: rgba(255,255,255,0.07);
}
[data-theme="dark"] .mobile-menu {
  background: #1e293b;
  border-top-color: rgba(255,255,255,0.07);
}
[data-theme="dark"] .mobile-menu a {
  border-bottom-color: rgba(255,255,255,0.05);
}
[data-theme="dark"] .section-alt {
  background: rgba(30,41,59,0.6);
}
[data-theme="dark"] .stat-card,
[data-theme="dark"] .pain-card,
[data-theme="dark"] .formula-card,
[data-theme="dark"] .vault-col,
[data-theme="dark"] .audience-card,
[data-theme="dark"] .testi-card,
[data-theme="dark"] .compare-card,
[data-theme="dark"] .pricing-card,
[data-theme="dark"] .faq-item,
[data-theme="dark"] .form-wrap,
[data-theme="dark"] .bank-table,
[data-theme="dark"] .qr-box {
  background: rgba(30,41,59,0.9);
  border-color: rgba(255,255,255,0.08);
}
[data-theme="dark"] .compare-title { border-bottom-color: rgba(255,255,255,0.07); }
[data-theme="dark"] .vault-col h3  { border-bottom-color: rgba(255,255,255,0.07); }
[data-theme="dark"] .pricing-features { border-top-color: rgba(255,255,255,0.07); border-bottom-color: rgba(255,255,255,0.07); }
[data-theme="dark"] .faq-a { border-top-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .form-field input {
  background: rgba(15,23,42,0.8);
  border-color: rgba(255,255,255,0.1);
  color: var(--text-primary);
}
[data-theme="dark"] .form-field input:focus {
  border-color: var(--primary);
  background: rgba(15,23,42,1);
}
[data-theme="dark"] .bank-row-s { border-bottom-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .terms-section { background: rgba(15,23,42,0.7); border-top-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .footer { background: #0f172a; border-top-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .footer-copy { border-top-color: rgba(255,255,255,0.05); }
[data-theme="dark"] .btn-outline {
  background: rgba(30,41,59,0.8);
  border-color: rgba(0,97,255,0.4);
}

/* ===========================
   HONEYPOT
=========================== */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ===========================
   FORM STEP 2 – QR
=========================== */
.step2-wrap { text-align: center; }
.step2-success { margin-bottom: 24px; }
.step2-check-icon {
  display: inline-flex;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 24px; font-weight: 700;
  align-items: center; justify-content: center;
  margin-bottom: 14px;
  box-shadow: 0 4px 20px rgba(0,97,255,0.35);
}
.step2-success h3 {
  font-size: 22px; font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.step2-success p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

.qr-box {
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(0,97,255,0.12);
  border-radius: var(--radius-2xl);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--glass-shadow);
}
.vietqr-logo {
  font-size: 18px; font-weight: 900;
  color: #cc0000;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.vietqr-logo span { color: #0061ff; }
.qr-img {
  width: 200px; height: 200px;
  border-radius: var(--radius-md);
  display: block;
  margin: 0 auto 12px;
  border: 1px solid rgba(0,0,0,0.08);
}
.qr-bank-logos {
  font-size: 13px; font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.mb-logo { color: #cc0000; }
.divider-dot { color: var(--text-muted); }
.qr-account-name { font-size: 14px; font-weight: 800; color: var(--text-primary); margin-bottom: 2px; }
.qr-account-no   { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.qr-amount       { font-size: 13px; color: var(--text-secondary); font-weight: 600; }

.bank-table {
  background: rgba(248,250,252,0.9);
  border: 1px solid rgba(0,97,255,0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 14px;
  text-align: left;
}
.bank-row-s {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  gap: 12px;
}
.bank-row-s:last-child { border-bottom: none; }
.bank-row-s span { font-size: 13px; color: var(--text-muted); flex-shrink: 0; }
.bank-row-s strong { font-size: 14px; font-weight: 700; color: var(--text-primary); text-align: right; }
.price-hl { color: var(--primary) !important; font-size: 16px !important; }
.transfer-note {
  color: var(--primary) !important;
  font-size: 13px !important;
  word-break: break-all;
}
.step2-note {
  margin-top: 14px;
  font-size: 13px; color: var(--text-muted);
  line-height: 1.6;
}
.form-error {
  font-size: 13px; color: var(--red);
  text-align: center; min-height: 18px;
  margin-top: -4px;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 1024px) {
  .formula-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: block; }
  .pain-grid     { grid-template-columns: repeat(2, 1fr); }
  .formula-grid  { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .vault-grid    { grid-template-columns: 1fr; }
  .testi-grid    { grid-template-columns: 1fr; }
  .compare-grid  { grid-template-columns: 1fr; }
  .stats-row     { grid-template-columns: repeat(2, 1fr); }
  .pricing-card  { padding: 32px 24px; }
  .pricing-price { font-size: 52px; }
  .cta-inner     { padding: 40px 28px; }
  .form-wrap     { padding: 28px 20px; }
}
@media (max-width: 560px) {
  .section { padding: 64px 0; }
  .hero { padding: 64px 0 52px; }
  .pain-grid     { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .formula-grid  { grid-template-columns: repeat(2, 1fr); }
  .hero-btns     { flex-direction: column; align-items: stretch; }
  .hero-checks   { flex-direction: column; gap: 10px; align-items: center; }
  .footer-inner  { flex-direction: column; text-align: center; }
  .footer-links  { justify-content: center; }
}

/* ===========================
   BACKGROUND BLOBS
=========================== */
body::before { display: none; } /* tắt blob cũ – dùng .bg-decoration thay */
.bg-decoration {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: var(--blob-opacity);
  animation: blobFloat 20s ease-in-out infinite;
}
.bg-blob-1 { width: 600px; height: 600px; background: var(--primary);   top: -200px; right: -200px; }
.bg-blob-2 { width: 500px; height: 500px; background: var(--secondary);  bottom: -150px; left: -150px; animation-delay: -7s; }
.bg-blob-3 { width: 400px; height: 400px; background: var(--gradient);   top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: -14s; }
@keyframes blobFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  25%      { transform: translate(30px,-30px) scale(1.05); }
  50%      { transform: translate(-20px,20px) scale(.95); }
  75%      { transform: translate(-30px,-20px) scale(1.02); }
}
.bg-blob-3 { animation: blobFloat3 20s ease-in-out infinite; animation-delay: -14s; }
@keyframes blobFloat3 {
  0%,100% { transform: translate(-50%,-50%) scale(1); }
  25%      { transform: translate(calc(-50% + 30px),calc(-50% - 30px)) scale(1.05); }
  50%      { transform: translate(calc(-50% - 20px),calc(-50% + 20px)) scale(.95); }
  75%      { transform: translate(calc(-50% - 30px),calc(-50% - 20px)) scale(1.02); }
}
[data-theme="dark"] .bg-blob-1 { opacity: .18; }
[data-theme="dark"] .bg-blob-2 { opacity: .15; }
[data-theme="dark"] .bg-blob-3 { opacity: .1; }

/* ===========================
   HEADER SCROLL EFFECT
=========================== */
#header { transition: background var(--transition-smooth), box-shadow var(--transition-smooth); }
#header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(1.8);
  -webkit-backdrop-filter: blur(24px) saturate(1.8);
  box-shadow: 0 4px 30px rgba(0,97,255,0.12);
}
[data-theme="dark"] #header.scrolled { background: rgba(15,23,42,0.95); }

/* ===========================
   MOBILE OVERLAY + CLOSE
=========================== */
.mobile-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 199;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.mobile-overlay.open { display: block; }
.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: min(320px, 85vw); height: 100vh;
  background: var(--bg-primary);
  box-shadow: -4px 0 40px rgba(0,0,0,.15);
  z-index: 200;
  padding: 5rem 1.5rem 2rem;
  transition: right .4s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 0;
  border-top: none;
}
.mobile-menu.open { right: 0; display: flex; }
.mobile-menu a {
  display: block;
  font-size: 15px; font-weight: 600;
  color: var(--text-primary);
  padding: 13px 0;
  border-bottom: 1px solid var(--edge-color);
}
.mobile-menu .btn-primary { display: flex; justify-content: center; margin-top: 18px; width: 100%; border: none; }
.mobile-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 40px; height: 40px;
  border-radius: 50%; border: none;
  background: var(--bg-tertiary); color: var(--text-primary);
  cursor: pointer; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-normal);
}
.mobile-close:hover { background: var(--gradient-soft); color: var(--primary); }

/* ===========================
   HERO GRID ANIMATION
=========================== */
.hero { position: relative; }
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(0,97,255,.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(0,97,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
  animation: gridPulse 8s ease-in-out infinite;
  z-index: 0;
}
@keyframes gridPulse {
  0%,100% { opacity: .6; }
  50%      { opacity: 1; }
}

/* ===========================
   HERO VIDEO – REAL IFRAME
=========================== */
.hero-video {
  background: #000;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,97,255,0.22);
  border: none;
  aspect-ratio: unset;
}
.hero-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  height: 0;
}
.hero-video-wrap iframe {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  border: 0; display: block;
}

/* Hero checks – SVG icons */
.hero-checks svg { color: #22c55e; flex-shrink: 0; }
.hero-checks span { display: inline-flex; align-items: center; gap: 6px; }

/* ===========================
   STATS SECTION (standalone)
=========================== */
.stats-section { padding: 40px 0; position: relative; z-index: 1; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

/* ===========================
   FORMULA-STRUCT (alias)
=========================== */
.formula-struct {
  font-size: 12px; font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  line-height: 1.4;
}
/* formula-card h3 in new HTML (was formula-name) */
.formula-card h3 {
  font-size: 16px; font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 5px;
}

/* ===========================
   FAQ – CSS-ONLY ACCORDION
=========================== */
.faq-q::after {
  content: "+";
  font-size: 1.4rem; font-weight: 300;
  color: var(--primary);
  flex-shrink: 0; line-height: 1;
  transition: transform var(--transition-smooth);
}
.faq-item.open .faq-q::after { content: "−"; }
/* override display:none → max-height transition */
.faq-a {
  display: block !important;
  max-height: 0;
  overflow: hidden;
  transition: max-height .38s ease, padding .38s ease;
  padding: 0 24px;
  border-top: none;
  font-size: 14px; color: var(--text-secondary); line-height: 1.78;
}
.faq-item.open .faq-a {
  max-height: 420px;
  padding: 0 24px 18px;
  border-top: 1px solid rgba(0,0,0,0.05);
}
.faq-a p { padding-top: 14px; }
/* remove old faq-ico element if still present */
.faq-ico { display: none; }

/* ===========================
   TERMS CHECKBOX GROUP
=========================== */
.terms-group {
  display: flex; align-items: flex-start; gap: 10px;
  cursor: pointer; user-select: none;
}
.terms-group input[type="checkbox"] { display: none; }
.terms-checkmark {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 6px;
  border: 2px solid var(--bg-tertiary);
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: all .25s; margin-top: 1px;
}
.terms-group input:checked + .terms-checkmark {
  background: var(--gradient);
  border-color: transparent;
}
.terms-group input:checked + .terms-checkmark svg { opacity: 1; transform: scale(1); }
.terms-checkmark svg {
  width: 14px; height: 14px;
  stroke: #fff; stroke-width: 2.5; fill: none;
  opacity: 0; transform: scale(.5);
  transition: all .25s;
}
.terms-label { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.terms-label a {
  color: var(--primary); font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(0,97,255,.3);
  text-underline-offset: 2px;
  transition: all .2s;
}
.terms-label a:hover { text-decoration-color: var(--primary); }
.terms-group.has-error .terms-checkmark {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.12);
}
.terms-error {
  display: none;
  color: #ef4444; font-size: .8rem;
  margin-top: -6px;
}
.terms-group.has-error ~ .terms-error { display: block; }

/* ===========================
   SUBMIT BUTTON LOADING
=========================== */
.btn-spinner { display: none; animation: spin 1s linear infinite; }
.btn-submit.loading .btn-text,
.btn-submit.loading .btn-icon { display: none; }
.btn-submit.loading .btn-spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===========================
   TERMS MODAL OVERLAY
=========================== */
.terms-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  justify-content: center; align-items: center;
  padding: 1rem;
  animation: tmFadeIn .25s ease;
}
.terms-overlay.open { display: flex; }
@keyframes tmFadeIn { from { opacity: 0; } to { opacity: 1; } }
.terms-modal {
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  max-width: 560px; width: 100%;
  max-height: 85vh; overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.25);
  animation: tmSlideUp .35s cubic-bezier(.4,0,.2,1);
}
@keyframes tmSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.terms-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--edge-color);
}
.terms-modal-header h3 {
  font-size: 1.1rem; font-weight: 700;
  display: flex; align-items: center; gap: .5rem;
  color: var(--text-primary);
}
.terms-modal-header h3 svg { color: var(--primary); flex-shrink: 0; }
.terms-modal-close {
  width: 36px; height: 36px;
  border-radius: 50%; border: none;
  background: var(--bg-tertiary); color: var(--text-primary);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all .2s; flex-shrink: 0;
}
.terms-modal-close:hover { background: var(--gradient-soft); color: var(--primary); }
.terms-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: calc(85vh - 140px);
}
.terms-modal-body ul {
  list-style: none;
  display: flex; flex-direction: column; gap: .85rem;
}
.terms-modal-body li {
  display: flex; gap: .75rem; align-items: flex-start;
  font-size: .92rem; line-height: 1.6;
  color: var(--text-secondary);
}
.terms-modal-body li svg { flex-shrink: 0; margin-top: 3px; color: var(--primary); }
.terms-modal-body li strong { color: var(--text-primary); font-weight: 700; }
.terms-modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--edge-color);
  text-align: center;
}
.terms-modal-footer button {
  background: var(--gradient); color: #fff;
  border: none; padding: .75rem 2rem;
  border-radius: var(--radius-pill);
  font-family: inherit; font-weight: 700; font-size: .95rem;
  cursor: pointer; transition: all .3s;
  box-shadow: 0 4px 16px rgba(0,97,255,.3);
}
.terms-modal-footer button:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,97,255,.4); }
@media (max-width: 480px) {
  .terms-modal { max-height: 90vh; border-radius: var(--radius-xl) var(--radius-xl) 0 0; align-self: flex-end; }
  .terms-modal-body { max-height: calc(90vh - 140px); }
  .terms-overlay { align-items: flex-end; padding: 0; }
}

/* ===========================
   CHECK PAYMENT + CONFIRMED
=========================== */
.check-payment-btn {
  width: 100%; margin-top: 16px; padding: 14px;
  background: var(--bg-tertiary); color: var(--text-primary);
  border: none; border-radius: var(--radius-pill);
  font-family: inherit; font-weight: 700; font-size: 15px;
  cursor: pointer; transition: all .3s;
}
.check-payment-btn:hover { background: var(--gradient); color: #fff; }
.check-payment-btn:disabled { opacity: .6; cursor: not-allowed; }
.payment-status-msg {
  margin-top: 12px; padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px; display: none; line-height: 1.55;
}
.payment-status-msg.show { display: block; }
.payment-status-msg.error   { background: rgba(239,68,68,.1);  color: #ef4444; }
.payment-status-msg.success { background: rgba(34,197,94,.1);  color: #16a34a; }
.payment-confirmed {
  text-align: center; padding: 32px 0;
  animation: tmFadeIn .5s ease;
}
.confirmed-icon {
  width: 72px; height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 32px rgba(0,97,255,.3);
}
.payment-confirmed h3 { font-size: 22px; font-weight: 900; margin-bottom: 10px; color: var(--text-primary); }
.payment-confirmed p  { font-size: 14px; color: var(--text-muted); line-height: 1.65; max-width: 400px; margin: 0 auto; }

/* ===========================
   RESPONSIVE ADDITIONS
=========================== */
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .bg-blob-1 { width: 280px; height: 280px; top: -100px; right: -100px; }
  .bg-blob-2 { width: 230px; height: 230px; bottom: -80px; left: -80px; }
  .bg-blob-3 { width: 200px; height: 200px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-field input, .form-field select { font-size: 16px; } /* prevent iOS zoom */
}