/*
Theme Name: WebCraft Agency
Theme URI: https://agency.edmondmasionvn.com
Author: WebCraft
Description: Theme landing page agency thiết kế website - dark tech style, kho giao diện mẫu nhúng demo ThemeForest.
Version: 1.1.0
License: GNU General Public License v2 or later
Text Domain: webcraft
*/

/* ============ TOKENS ============ */
:root {
  --bg: #070b14;
  --bg-alt: #0c1220;
  --surface: #111a2e;
  --surface-2: #16213a;
  --border: rgba(148, 163, 184, 0.14);
  --text: #e6edf7;
  --text-dim: #94a3b8;
  --primary: #6366f1;
  --primary-2: #22d3ee;
  --grad: linear-gradient(100deg, #6366f1 0%, #8b5cf6 50%, #22d3ee 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(2, 6, 23, 0.6);
  --font: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font); font-weight: 600; font-size: 15px;
  padding: 12px 24px; border-radius: 999px;
  cursor: pointer; transition: all .25s ease; white-space: nowrap;
}
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5); }
.btn-ghost {
  background: rgba(148, 163, 184, 0.08); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border);
}
.btn-ghost:hover { background: rgba(148, 163, 184, 0.16); box-shadow: inset 0 0 0 1px rgba(148,163,184,.3); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* ============ NAV ============ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 14px 0; transition: all .3s ease;
}
.site-nav.scrolled {
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800;
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.4);
}
.logo-text em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text-dim); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }

/* ============ HERO ============ */
.hero { position: relative; padding: 160px 0 90px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; }
.orb-1 { width: 480px; height: 480px; background: #6366f1; top: -140px; left: -120px; }
.orb-2 { width: 420px; height: 420px; background: #22d3ee; bottom: -160px; right: -100px; opacity: .22; }
.grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(148,163,184,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(148,163,184,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 40%, transparent 100%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.badge {
  display: inline-block; font-size: 13.5px; font-weight: 500;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(99, 102, 241, 0.12); border: 1px solid rgba(99, 102, 241, 0.35);
  color: #c7d2fe; margin-bottom: 22px;
}
.hero h1 { font-size: 50px; line-height: 1.15; font-weight: 800; letter-spacing: -1px; margin-bottom: 20px; }
.hero-sub { font-size: 17.5px; color: var(--text-dim); max-width: 560px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.stat strong { display: block; font-size: 26px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat span { font-size: 13px; color: var(--text-dim); }

/* Hero mockups */
.hero-visual { position: relative; min-height: 380px; }
.browser-mock {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden; box-shadow: var(--shadow);
  width: 100%; max-width: 420px;
}
.browser-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.browser-bar span { width: 10px; height: 10px; border-radius: 50%; background: #334155; }
.browser-bar span:nth-child(1) { background: #f87171; }
.browser-bar span:nth-child(2) { background: #fbbf24; }
.browser-bar span:nth-child(3) { background: #34d399; }
.browser-url {
  flex: 1; margin-left: 8px; font-size: 11px; color: var(--text-dim);
  background: rgba(148,163,184,.08); padding: 4px 12px; border-radius: 6px;
}
.browser-body { padding: 18px; }
.mock-hero { height: 90px; border-radius: 8px; background: var(--grad); opacity: .8; margin-bottom: 14px; }
.mock-hero.small { height: 64px; }
.mock-row { display: flex; gap: 10px; margin-bottom: 14px; }
.mock-card { flex: 1; height: 52px; border-radius: 8px; background: rgba(148,163,184,.12); }
.mock-line { height: 9px; border-radius: 4px; background: rgba(148,163,184,.16); margin-bottom: 9px; }
.mock-line.w80 { width: 80%; } .mock-line.w60 { width: 60%; }
.mock-btn { width: 46%; height: 28px; border-radius: 999px; background: var(--grad); margin-top: 12px; opacity: .85; }
.mock-mobile {
  position: absolute; width: 150px; right: -6px; bottom: -30px;
  border-radius: 20px;
}
.float-anim { animation: floaty 6s ease-in-out infinite; }
.float-anim-delay { animation: floaty 6s ease-in-out 1.4s infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

/* ============ SECTIONS ============ */
.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--primary-2); margin-bottom: 14px;
}
.section-head h2 { font-size: 38px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 16px; }
.section-head p { color: var(--text-dim); font-size: 16.5px; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

/* ============ CARDS ============ */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 26px;
  transition: all .3s ease; position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad); opacity: 0; transition: opacity .3s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(99,102,241,.4); }
.card:hover::before { opacity: 1; }
.card-icon { font-size: 34px; margin-bottom: 16px; }
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-dim); margin-bottom: 18px; }
.card-tag {
  font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  background: rgba(34, 211, 238, 0.1); color: var(--primary-2); border: 1px solid rgba(34,211,238,.25);
}

/* ============ FILTER TABS ============ */
.filter-tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.tab {
  font-family: var(--font); font-size: 14.5px; font-weight: 600;
  padding: 10px 22px; border-radius: 999px; cursor: pointer;
  background: rgba(148,163,184,.07); color: var(--text-dim);
  box-shadow: inset 0 0 0 1px var(--border);
  transition: all .25s;
}
.tab:hover { color: var(--text); }
.tab.active { background: var(--grad); color: #fff; box-shadow: 0 6px 18px rgba(99,102,241,.35); }

/* ============ TEMPLATE GRID ============ */
.template-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.tpl-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; transition: all .3s ease;
}
.tpl-card:hover { transform: translateY(-6px); border-color: rgba(99,102,241,.45); box-shadow: var(--shadow); }
.tpl-card.hidden { display: none; }
.tpl-thumb {
  position: relative; padding: 22px 22px 0;
  background: linear-gradient(135deg, var(--tc1), var(--tc2));
  height: 210px; overflow: hidden;
}
.tpl-browser {
  display: flex; flex-direction: column;
  background: #0d1424; border-radius: 10px 10px 0 0; height: 100%;
  box-shadow: 0 -8px 30px rgba(0,0,0,.35); overflow: hidden;
}
.tpl-browser-bar { display: flex; align-items: center; gap: 5px; padding: 9px 12px; background: #131c31; flex-shrink: 0; }
.tpl-browser-bar i { width: 8px; height: 8px; border-radius: 50%; background: rgba(148,163,184,.3); flex-shrink: 0; }
.tpl-browser-bar i:nth-child(1) { background: #f87171; }
.tpl-browser-bar i:nth-child(2) { background: #fbbf24; }
.tpl-browser-bar i:nth-child(3) { background: #34d399; }
.tpl-browser-url {
  margin-left: 8px; font-size: 10.5px; color: var(--text-dim);
  background: rgba(148,163,184,.1); padding: 3px 10px; border-radius: 5px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 74%;
}
/* Ảnh chụp thật của trang demo (WordPress mShots) */
.tpl-shot {
  flex: 1; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--tc1), var(--tc2));
}
.tpl-shot::after {
  content: 'Đang tải ảnh xem trước…';
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: rgba(255,255,255,.85); font-weight: 500; letter-spacing: .3px;
  z-index: 0;
}
.tpl-shot img {
  position: relative; z-index: 1;
  width: 100%; height: 100%; object-fit: cover; object-position: top center;
  display: block; background: #0d1424;
}
.tpl-overlay {
  position: absolute; inset: 0; z-index: 3;
  background: rgba(7, 11, 20, 0.72); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; padding: 16px;
  opacity: 0; transition: opacity .3s ease;
}
.tpl-card:hover .tpl-overlay { opacity: 1; }
.tpl-info { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; }
.tpl-info h4 { font-size: 16.5px; font-weight: 700; }
.tpl-cat { font-size: 12.5px; color: var(--text-dim); }
.tpl-choose { font-size: 13.5px; font-weight: 600; color: var(--primary-2); transition: opacity .2s; }
.tpl-choose:hover { opacity: .75; }
.tpl-note { text-align: center; margin-top: 40px; color: var(--text-dim); font-size: 15px; }
.tpl-note a { color: var(--primary-2); font-weight: 600; }

/* ============ STEPS ============ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step {
  position: relative; padding: 28px 24px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  transition: all .3s;
}
.step:hover { transform: translateY(-5px); border-color: rgba(34,211,238,.4); }
.step-num {
  font-size: 42px; font-weight: 800; line-height: 1; margin-bottom: 16px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  opacity: .9;
}
.step h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-dim); }

/* ============ PRICING ============ */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 36px 30px; display: flex; flex-direction: column;
  transition: all .3s;
}
.price-card:hover { transform: translateY(-6px); }
.price-card.featured {
  background: linear-gradient(160deg, rgba(99,102,241,.14), rgba(34,211,238,.06)), var(--surface);
  border: 1.5px solid rgba(99, 102, 241, 0.55);
  box-shadow: 0 24px 60px rgba(99, 102, 241, 0.22);
}
.popular {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--grad); color: #fff; font-size: 12.5px; font-weight: 700;
  padding: 6px 18px; border-radius: 999px; white-space: nowrap;
  box-shadow: 0 6px 18px rgba(99,102,241,.45);
}
.price-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 14px; }
.price { margin-bottom: 24px; }
.price .amount { font-size: 36px; font-weight: 800; letter-spacing: -1px; }
.price .unit { font-size: 18px; color: var(--text-dim); margin-left: 2px; }
.price-card ul { list-style: none; margin-bottom: 28px; flex: 1; }
.price-card li { font-size: 14.5px; color: var(--text-dim); padding: 7px 0; border-bottom: 1px dashed rgba(148,163,184,.1); }

/* ============ QUOTES ============ */
.quote-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 26px; transition: all .3s;
}
.quote-card:hover { transform: translateY(-5px); border-color: rgba(99,102,241,.35); }
.stars { color: #fbbf24; font-size: 15px; letter-spacing: 3px; margin-bottom: 14px; }
.quote-card > p { font-size: 15px; color: var(--text); font-style: italic; margin-bottom: 22px; }
.quote-author { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: var(--grad); color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
}
.quote-author strong { display: block; font-size: 14.5px; }
.quote-author span { font-size: 12.5px; color: var(--text-dim); }

/* ============ CONTACT ============ */
.section-contact {
  background:
    radial-gradient(ellipse 60% 80% at 20% 40%, rgba(99,102,241,.12), transparent),
    radial-gradient(ellipse 50% 70% at 85% 70%, rgba(34,211,238,.08), transparent),
    var(--bg-alt);
  border-top: 1px solid var(--border);
}
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start;
}
.contact-info h2 { font-size: 34px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 16px; }
.contact-info > p { color: var(--text-dim); margin-bottom: 30px; }
.contact-methods { display: flex; flex-direction: column; gap: 14px; }
.contact-method {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 16px 20px; border-radius: var(--radius-sm); transition: all .25s;
}
.contact-method:hover { border-color: rgba(99,102,241,.45); transform: translateX(4px); }
.contact-method span { font-size: 24px; }
.contact-method strong { display: block; font-size: 14px; }
.contact-method em { font-style: normal; font-size: 13.5px; color: var(--text-dim); }

.contact-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 36px; box-shadow: var(--shadow);
}
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; font-family: var(--font); font-size: 15px; color: var(--text);
  background: rgba(148,163,184,.06); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 14px;
  outline: none; transition: border-color .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  border-color: var(--primary);
}
.contact-form select { appearance: none; cursor: pointer; }
.contact-form select option { background: var(--surface-2); color: var(--text); }
.contact-form textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-note { text-align: center; font-size: 12.5px; color: var(--text-dim); margin-top: 14px; }
.form-alert {
  padding: 14px 18px; border-radius: var(--radius-sm); font-size: 14.5px; margin-bottom: 18px;
}
.form-alert.success { background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.35); color: #86efac; }
.form-alert.error { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.35); color: #fca5a5; }

/* ============ FOOTER ============ */
.site-footer { border-top: 1px solid var(--border); padding-top: 64px; background: #05080f; }
.footer-inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px;
}
.footer-brand p { font-size: 14px; color: var(--text-dim); margin-top: 16px; max-width: 300px; }
.footer-col h4 { font-size: 15px; font-weight: 700; margin-bottom: 18px; }
.footer-col a { display: block; font-size: 14px; color: var(--text-dim); padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--primary-2); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom p { font-size: 13px; color: var(--text-dim); text-align: center; }

/* ============ DEMO MODAL ============ */
.demo-modal { position: fixed; inset: 0; z-index: 1000; display: none; }
.demo-modal.open { display: block; }
.demo-backdrop { position: absolute; inset: 0; background: rgba(3, 6, 12, 0.85); backdrop-filter: blur(4px); }
.demo-dialog {
  position: absolute; inset: 3% 4%;
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px;
  display: flex; flex-direction: column; overflow: hidden; box-shadow: var(--shadow);
  animation: modalIn .3s ease;
}
@keyframes modalIn { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: scale(1); } }
.demo-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px 18px; background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.demo-title { font-weight: 700; font-size: 15px; }
.demo-actions { display: flex; gap: 10px; }
.demo-frame-wrap { position: relative; flex: 1; background: #fff; }
.demo-frame-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.demo-loading {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 18px;
  background: var(--bg-alt); color: var(--text-dim); text-align: center; font-size: 14.5px;
  z-index: 1; transition: opacity .4s;
}
.demo-loading.fade { opacity: 0; pointer-events: none; }
.spinner {
  width: 42px; height: 42px; border-radius: 50%;
  border: 3px solid rgba(148,163,184,.2); border-top-color: var(--primary);
  animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ FLOAT BUTTONS ============ */
.float-contact { position: fixed; right: 20px; bottom: 24px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 54px; height: 54px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; box-shadow: 0 10px 26px rgba(0,0,0,.4);
  transition: transform .25s; animation: pulse 2.4s infinite;
}
.float-btn:hover { transform: scale(1.1); }
.float-phone { background: linear-gradient(135deg, #22c55e, #16a34a); }
.float-zalo { background: linear-gradient(135deg, #0ea5e9, #2563eb); color: #fff; font-size: 13px; }
@keyframes pulse {
  0% { box-shadow: 0 10px 26px rgba(0,0,0,.4), 0 0 0 0 rgba(99,102,241,.4); }
  70% { box-shadow: 0 10px 26px rgba(0,0,0,.4), 0 0 0 14px rgba(99,102,241,0); }
  100% { box-shadow: 0 10px 26px rgba(0,0,0,.4), 0 0 0 0 rgba(99,102,241,0); }
}

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 40px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .template-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .hero { padding: 130px 0 70px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .pricing { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .price-card.featured { order: -1; }
  .grid-3 { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 12px 24px 20px;
    background: rgba(7, 11, 20, 0.97); border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid rgba(148,163,184,.08); }
  .nav-toggle { display: flex; }
  .nav-actions .btn { display: none; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 31px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
  .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .template-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .hero-stats { gap: 24px; }
  .demo-dialog { inset: 2%; }
  .contact-form { padding: 26px 20px; }
}

/* ============ TOUCH: hiện sẵn nút Xem demo trên điện thoại (không có hover) ============ */
@media (hover: none) {
  .tpl-overlay {
    opacity: 1;
    top: auto; height: auto;
    background: linear-gradient(to top, rgba(7,11,20,.94) 45%, rgba(7,11,20,0));
    backdrop-filter: none;
    align-items: flex-end; padding: 30px 14px 14px;
  }
}