:root {
  color-scheme: light;
  --navy: #0b1130;
  --navy-2: #131b3d;
  --accent: #2b3fe0;
  --accent-hover: #202fb0;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1a1f36;
  --muted: #6b7280;
  --border: #e4e7f2;
  --pill-bg: #eef0fd;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site-header {
  background: var(--navy);
  color: #fff;
}

.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1160px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.brand .dot { color: var(--accent); }

.logo-mark {
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(.34,1.56,.64,1);
}

a.brand:hover .logo-mark { transform: rotate(-8deg) scale(1.08); }

.brand-accent { color: #8fa0ff; }
.admin-sidebar .brand-accent { color: #8fa0ff; }

nav.main-nav {
  display: flex;
  gap: 22px;
  align-items: center;
}

nav.main-nav a {
  position: relative;
  color: rgba(255,255,255,0.78);
  font-size: 14px;
  font-weight: 500;
  padding-bottom: 4px;
  transition: color 0.2s ease;
}

nav.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: right 0.25s ease;
}

nav.main-nav a:hover, nav.main-nav a.active { color: #fff; }
nav.main-nav a:hover::after, nav.main-nav a.active::after { right: 0; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-btn {
  position: relative;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.icon-btn .badge-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  min-width: 18px;
  height: 18px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #f1f3f9; }
.btn-ghost { background: rgba(255,255,255,0.1); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.18); }
.btn-danger { background: #fdecec; color: var(--danger); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #128038; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn:active:not(:disabled) { transform: scale(0.96); }

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  font-size: 13px;
}

.hero {
  position: relative;
  background: var(--navy);
  color: #fff;
  padding: 56px 0 80px;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
  pointer-events: none;
  animation: blob-float 14s ease-in-out infinite;
}
.hero-blob.b1 { width: 340px; height: 340px; background: #2b3fe0; top: -120px; right: 10%; }
.hero-blob.b2 { width: 260px; height: 260px; background: #7b4fd6; bottom: -100px; right: 30%; animation-delay: -6s; }
.hero-blob.b3 { width: 200px; height: 200px; background: #2fbf9f; top: 20%; right: -40px; animation-delay: -3s; }

@keyframes blob-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20px, 24px) scale(1.08); }
  66% { transform: translate(16px, -18px) scale(0.94); }
}

.hero .container { position: relative; z-index: 1; }
.hero .pills { display: flex; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.hero h1 { font-size: 44px; font-weight: 800; line-height: 1.12; margin: 0 0 20px; max-width: 640px; }
.hero p { color: rgba(255,255,255,0.7); max-width: 560px; font-size: 16px; margin-bottom: 30px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }

.feature-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: -56px;
  padding-bottom: 20px;
}

.feature-card {
  border-radius: var(--radius-lg);
  padding: 28px;
  color: #fff;
  min-height: 170px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(11,17,48,0.22);
}

.feature-card h3 { font-size: 20px; margin: 0 0 10px; }
.feature-card p { margin: 0; font-size: 14px; color: rgba(255,255,255,0.85); }

.feature-card.blue { background: linear-gradient(135deg, #2f6bd6, #1c3fa8); }
.feature-card.teal { background: linear-gradient(135deg, #2fbf9f, #1c8f7c); }
.feature-card.purple { background: linear-gradient(135deg, #7b4fd6, #4e2ea8); }

section { padding: 64px 0; }
.section-title { font-size: 30px; font-weight: 800; margin: 0 0 10px; }
.section-sub { color: var(--muted); margin: 0 0 36px; max-width: 560px; }

.type-tabs { display: flex; gap: 10px; margin-bottom: 30px; }
.type-tab {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.type-tab.active { background: var(--navy); color: #fff; border-color: var(--navy); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(11,17,48,0.08);
  border-color: transparent;
}

.product-card h3 { margin: 0; font-size: 18px; }
.product-card .price { font-size: 26px; font-weight: 800; }
.product-card .price span { font-size: 14px; font-weight: 500; color: var(--muted); }

.spec-list { display: flex; flex-direction: column; gap: 8px; margin: 0; }
.spec-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); border-bottom: 1px dashed var(--border); padding-bottom: 8px; }
.spec-row span:last-child { color: var(--text); font-weight: 600; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--muted); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.form-error { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }
.form-note { color: var(--muted); font-size: 13px; margin-top: 14px; text-align: center; }

.auth-page { max-width: 420px; margin: 60px auto; }
.auth-page h1 { font-size: 26px; margin-bottom: 6px; }
.auth-page .section-sub { margin-bottom: 30px; }

.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th { text-align: left; font-size: 12px; text-transform: uppercase; color: var(--muted); padding: 10px 0; border-bottom: 1px solid var(--border); }
.cart-table td { padding: 16px 0; border-bottom: 1px solid var(--border); vertical-align: middle; }
.qty-input { width: 64px; padding: 8px; border-radius: var(--radius-sm); border: 1px solid var(--border); text-align: center; }
.cart-summary { display: flex; justify-content: flex-end; margin-top: 24px; }
.cart-summary-box { min-width: 280px; }
.cart-summary-row { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 15px; }
.cart-summary-row.total { font-weight: 800; font-size: 20px; border-top: 1px solid var(--border); padding-top: 14px; margin-top: 14px; }

.badge { display: inline-flex; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.pending_payment { background: #fef3c7; color: var(--warning); }
.badge.paid { background: #dbeafe; color: var(--accent); }
.badge.fulfilled { background: #dcfce7; color: var(--success); }
.badge.cancelled { background: #fee2e2; color: var(--danger); }

.order-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; margin-bottom: 16px; }
.order-card .order-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.order-item-row { display: flex; justify-content: space-between; font-size: 14px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.stock-payload { background: #f4f6fb; border-radius: var(--radius-sm); padding: 12px; font-family: monospace; font-size: 13px; margin-top: 6px; white-space: pre-wrap; word-break: break-all; }

footer.site-footer { background: var(--navy); color: rgba(255,255,255,0.6); padding: 40px 0; margin-top: auto; font-size: 13px; }

.chat-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(43,63,224,0.4);
  z-index: 1000;
}

.chat-panel {
  position: fixed;
  bottom: 92px;
  right: 24px;
  width: 340px;
  height: 460px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 1000;
  border: 1px solid var(--border);
}

.chat-panel.open { display: flex; }
.chat-panel .chat-head { background: var(--navy); color: #fff; padding: 16px 18px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.chat-panel .chat-head button { background: none; border: none; color: #fff; font-size: 18px; cursor: pointer; }
.chat-messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.chat-msg { max-width: 80%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.4; }
.chat-msg.client { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.admin { align-self: flex-start; background: #f1f3f9; color: var(--text); border-bottom-left-radius: 4px; }
.chat-input-row { display: flex; border-top: 1px solid var(--border); padding: 10px; gap: 8px; }
.chat-input-row input { flex: 1; border: 1px solid var(--border); border-radius: 999px; padding: 10px 16px; font-size: 14px; }
.chat-input-row button { border: none; background: var(--accent); color: #fff; border-radius: 999px; padding: 0 18px; cursor: pointer; font-weight: 600; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

.balance-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: linear-gradient(120deg, var(--navy), var(--navy-2));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 34px;
}
.balance-label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: rgba(255,255,255,0.7); }
.balance-amount { font-size: 30px; font-weight: 800; margin-top: 4px; }

.topup-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.topup-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; background: var(--card); }
.topup-card h3 { margin: 0 0 14px; font-size: 17px; }

.field { margin-bottom: 6px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--muted); }
.input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
.hint { font-size: 13px; color: var(--muted); margin-top: 8px; }

.pay-methods { display: flex; flex-direction: column; gap: 10px; }
.pay-method {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; cursor: pointer; font-size: 14px; font-weight: 600;
}
.pay-method:has(input:checked) { border-color: var(--accent); background: var(--pill-bg); }

.notice { border-radius: var(--radius-sm); padding: 14px 16px; font-size: 14px; margin-top: 16px; }
.notice-warn { background: #fef3c7; color: var(--warning); }

.pay-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 15px; }
.copy-row { display: flex; gap: 10px; }
.copy-row .input { font-family: monospace; font-size: 13px; }
.form-success { color: var(--success); font-size: 14px; margin-top: 10px; }

@media (max-width: 760px) {
  .topup-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr; margin-top: 20px; }
  nav.main-nav { display: none; }
  .hero h1 { font-size: 32px; }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(.16,.84,.44,1), transform 0.7s cubic-bezier(.16,.84,.44,1);
  transition-delay: var(--reveal-delay, 0s);
}

[data-reveal].in-view { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .hero-blob { animation: none !important; }
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  color: #fff;
}

.stat-item { text-align: center; }
.stat-item .stat-num {
  font-size: 36px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #fff, #9fb0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-item .stat-label { color: rgba(255,255,255,0.65); font-size: 13px; margin-top: 6px; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.why-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(11,17,48,0.08); }

.why-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--pill-bg);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.why-card h3 { margin: 0 0 8px; font-size: 17px; }
.why-card p { margin: 0; color: var(--muted); font-size: 14px; }

.cta-banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #2b3fe0, #7b4fd6);
  padding: 48px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-banner h2 { margin: 0 0 10px; font-size: 28px; }
.cta-banner p { margin: 0; color: rgba(255,255,255,0.85); max-width: 460px; }
.cta-banner .btn-primary { background: #fff; color: var(--navy); }
.cta-banner .btn-primary:hover { background: #eef0fd; }

.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 760px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: none;
  border: none;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
}
.faq-question .chevron { transition: transform 0.25s ease; flex-shrink: 0; color: var(--muted); }
.faq-item.open .faq-question .chevron { transform: rotate(180deg); }
.faq-answer-wrap { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.3s ease; }
.faq-item.open .faq-answer-wrap { grid-template-rows: 1fr; }
.faq-answer-inner { overflow: hidden; }
.faq-answer { padding: 0 22px 20px; color: var(--muted); font-size: 14px; line-height: 1.6; }

@media (max-width: 900px) {
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 32px; }
}

.configurator-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: start;
}

.config-row { margin-bottom: 26px; }
.config-row-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.config-row-head label { font-weight: 700; font-size: 14px; }
.config-row-head .config-value { color: var(--accent); font-weight: 700; font-size: 14px; }

.config-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--border);
  outline: none;
}
.config-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(43,63,224,0.4);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.config-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.config-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(43,63,224,0.4);
  cursor: pointer;
}

.config-chip-group { display: flex; gap: 10px; flex-wrap: wrap; }
.config-chip {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: #fff;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.config-chip.active { border-color: var(--accent); background: var(--pill-bg); color: var(--accent); }
.config-chip:hover { border-color: var(--accent); }

.cpu-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.cpu-select-current {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  text-align: left;
}

.cpu-select-current .chevron { transition: transform 0.25s ease; color: var(--muted); flex-shrink: 0; }
.cpu-select.open .cpu-select-current .chevron { transform: rotate(180deg); }

.cpu-select-list-wrap { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.3s ease; }
.cpu-select.open .cpu-select-list-wrap { grid-template-rows: 1fr; }
.cpu-select-list-inner { overflow: hidden; }

.cpu-select-list {
  max-height: 280px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}

.cpu-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 13px 18px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  text-align: left;
  font-size: 14px;
  color: var(--muted);
  transition: background 0.15s ease;
}
.cpu-option:last-child { border-bottom: none; }
.cpu-option:hover { background: var(--pill-bg); }
.cpu-option.selected { color: var(--text); font-weight: 700; background: var(--pill-bg); }
.cpu-option .cpu-price { flex-shrink: 0; font-variant-numeric: tabular-nums; }

.config-summary {
  position: sticky;
  top: 24px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
}
.config-summary h3 { margin: 0 0 18px; }
.config-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.75);
}
.config-summary-row span:last-child { color: #fff; font-weight: 600; }
.config-price {
  font-size: 38px;
  font-weight: 800;
  margin: 18px 0 4px;
  font-variant-numeric: tabular-nums;
  transition: color 0.2s ease;
}
.config-price-sub { color: rgba(255,255,255,0.6); font-size: 13px; margin-bottom: 22px; }

@media (max-width: 900px) {
  .configurator-layout { grid-template-columns: 1fr; }
  .config-summary { position: static; }
}