/* =========================================================================
   VoiceFree Web — Design System
   Phong cách: developer-SaaS sáng màu, accent cam/coral (tham chiếu 9Router).
   Nền trắng/off-white ấm, card viền mảnh, pill bo tròn, typography geometric.
   ========================================================================= */

/* ---- Fonts: nạp qua <link> Google Fonts trong <head> (Plus Jakarta Sans + Inter) ---- */

:root {
  /* Màu nền */
  --bg: #ffffff;
  --bg-soft: #faf9f7;      /* section xen kẽ, off-white ấm */
  --bg-muted: #f4f3f1;
  --card: #ffffff;

  /* Viền + đường kẻ */
  --border: #ececea;
  --border-strong: #e0ded9;

  /* Chữ */
  --text: #18181b;
  --text-muted: #6b6b71;
  --text-faint: #767680;

  /* Accent cam/coral */
  --accent: #ff5a1f;
  --accent-hover: #ed4810;
  --accent-soft: #fff1ea;   /* nền tint nhạt */
  --accent-ring: rgba(255, 90, 31, 0.22);

  /* Trạng thái */
  --success: #16a34a;
  --success-soft: #e9f7ee;
  --danger: #ef4444;
  --danger-soft: #fdecec;
  --warning: #d97706;

  /* Bo góc */
  --r-sm: 8px;
  --r: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-pill: 999px;

  /* Đổ bóng */
  --shadow-xs: 0 1px 2px rgba(24, 24, 27, 0.05);
  --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.04), 0 2px 6px rgba(24, 24, 27, 0.05);
  --shadow-md: 0 6px 18px rgba(24, 24, 27, 0.08);
  --shadow-accent: 0 8px 22px rgba(255, 90, 31, 0.28);

  /* Typography */
  --font-head: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* Layout */
  --container: 1120px;
  --nav-h: 64px;

  /* Chuyển động */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 200ms;
}

/* ---- Reset ---- */
*,
*::before,
*::after { box-sizing: border-box; }

/* Đảm bảo thuộc tính [hidden] luôn ẩn — nếu không, class có display:flex/grid
   (vd .verify-banner) sẽ đè quy tắc [hidden]{display:none} của trình duyệt. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-soft);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Nền lưới ô vuông (graph-paper) phủ toàn trang — tham chiếu 9Router.
   Cố định sau nội dung (z-index:-1), mờ dần về phía dưới để không gắt mắt.
   Card/section nền đặc nổi lên trên như đang "trôi" trên lưới. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(24, 24, 27, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(24, 24, 27, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
          mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }

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

img { display: block; max-width: 100%; }

button { font-family: inherit; }

::selection { background: var(--accent-soft); color: var(--accent-hover); }

/* ---- Tiện ích bố cục ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: clamp(44px, 5vw, 72px); }
/* Trong suốt để lưới nền chạy liền mạch — card trắng vẫn nổi rõ nhờ viền + bóng. */
.section--soft { background: transparent; }
.text-accent { color: var(--accent); }
.muted { color: var(--text-muted); }
.center { text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 31, 0.18);
  padding: 5px 13px;
  border-radius: var(--r-pill);
}

.section-head {
  max-width: 660px;
  margin: 0 auto clamp(26px, 3.2vw, 40px);
  text-align: center;
}
.section-head h2 {
  font-size: clamp(1.7rem, 1.1rem + 2.4vw, 2.6rem);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}
.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* =========================================================================
   Nút
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  padding: 12px 20px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur) var(--ease),
              background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
  white-space: nowrap;
  user-select: none;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover:not(:disabled) { background: var(--bg-muted); border-color: var(--text-faint); }

.btn-soft {
  background: var(--accent-soft);
  color: var(--accent-hover);
}
.btn-soft:hover:not(:disabled) { background: #ffe6da; }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger-soft);
}
.btn-danger:hover:not(:disabled) { background: var(--danger-soft); }

.btn-lg { padding: 15px 28px; font-size: 1rem; }
.btn-sm { padding: 9px 15px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* =========================================================================
   Nav
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.brand-mark svg { width: 18px; height: 18px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--dur);
}
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

/* =========================================================================
   Hero
   ========================================================================= */
.hero { padding-block: clamp(40px, 5.5vw, 80px); position: relative; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
}
.hero h1 {
  font-size: clamp(2.4rem, 1.2rem + 4.6vw, 4.2rem);
  margin: 22px 0 20px;
}
.hero-sub {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.22rem);
  color: var(--text-muted);
  max-width: 36ch;
  margin-bottom: 30px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}
.stat-label { font-size: 0.82rem; color: var(--text-muted); }

/* Visual hero (SVG sóng âm) */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 0.92;
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 120% at 80% 0%, #fff3ec 0%, #fbfbfa 46%, #f6f5f3 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 50% 120%, var(--accent-ring), transparent 70%);
  pointer-events: none;
}

/* =========================================================================
   Lưới tính năng
   ========================================================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

.feature-card .ficon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-card .ficon svg { width: 22px; height: 22px; }
.feature-card h3 { font-size: 1.08rem; margin-bottom: 7px; }
.feature-card p { font-size: 0.93rem; color: var(--text-muted); }

/* =========================================================================
   Cách hoạt động — 3 bước
   ========================================================================= */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 16px;
  box-shadow: var(--shadow-accent);
}
.step h3 { font-size: 1.05rem; margin-bottom: 7px; }
.step p { font-size: 0.92rem; color: var(--text-muted); }

/* =========================================================================
   So sánh / bảng giá strip
   ========================================================================= */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.compare-card {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 30px;
  background: var(--card);
}
.compare-card.is-us {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), #fff 60%);
  box-shadow: var(--shadow-sm);
}
.compare-card h3 { font-size: 1.2rem; margin-bottom: 6px; }
.price { font-family: var(--font-head); font-weight: 800; font-size: 2rem; letter-spacing: -0.02em; }
.price small { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 11px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.93rem; }
.check-list li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--success); }
.check-list li.no svg { color: var(--text-faint); }
.check-list li.no { color: var(--text-faint); }

/* =========================================================================
   CTA cuối
   ========================================================================= */
.cta-band {
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: clamp(40px, 6vw, 72px) 24px;
  background:
    radial-gradient(120% 140% at 50% 0%, var(--accent-soft) 0%, #fff 55%);
}
.cta-band h2 { font-size: clamp(1.7rem, 1.1rem + 2.6vw, 2.7rem); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0; }
.cta-band p { color: var(--text-muted); margin-bottom: 28px; }

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding-block: 40px;
}
.footer .container { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
.footer p { font-size: 0.85rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 22px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }

/* =========================================================================
   Modal (auth + upload)
   ========================================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  padding: 20px;
  overflow-y: auto;             /* cuộn khi modal cao hơn viewport (modal nạp ký tự 6 gói) */
  background: rgba(24, 24, 27, 0.42);
  backdrop-filter: blur(4px);
  animation: fade var(--dur) var(--ease);
}
.modal-overlay.open { display: flex; } /* flex + margin:auto = căn giữa nhưng không cắt khi tràn */
.modal {
  width: 100%;
  max-width: 420px;
  margin: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  padding: 30px;
  animation: pop var(--dur) var(--ease);
}
.modal-lg { max-width: 480px; }
.modal h2 {
  font-size: 1.4rem;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0;
}
.modal-sub { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 22px; }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: none; background: transparent;
  color: var(--text-faint); cursor: pointer; border-radius: 8px;
}
.modal-close:hover { background: var(--bg-muted); color: var(--text); }
.modal-wrap { position: relative; }

/* ---- Modal nạp ký tự (gói PayOS) ---- */
.modal-pkg { max-width: 560px; }

.pkg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.pkg-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 18px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.pkg-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.pkg-name {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.pkg-price {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
}
.pkg-chars {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.pkg-buy { margin-top: auto; }

/* ---- Lịch sử giao dịch ---- */
.txn-toggle {
  margin-top: 20px;
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px dashed var(--border-strong);
  border-radius: var(--r);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.txn-toggle:hover { color: var(--accent); border-color: var(--accent); }
.txn-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}
.txn-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 0.88rem;
}
.txn-amount { font-weight: 700; color: var(--text); }
.txn-chars { color: var(--text-muted); }
.txn-status {
  justify-self: end;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--r-pill);
}
.txn-status.paid { background: var(--success-soft); color: var(--success); }
.txn-status.pending { background: var(--accent-soft); color: var(--accent); }
.txn-status.failed { background: var(--danger-soft); color: var(--danger); }

@media (max-width: 560px) {
  .pkg-grid { grid-template-columns: 1fr; }
}

@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(0.98); } }

/* Tabs (đăng nhập / đăng ký) */
.seg {
  display: flex;
  gap: 4px;
  background: var(--bg-muted);
  padding: 4px;
  border-radius: var(--r-pill);
  margin-bottom: 22px;
}
.seg button {
  flex: 1;
  border: none;
  background: transparent;
  padding: 9px;
  border-radius: var(--r-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--dur), color var(--dur);
}
.seg button.active { background: #fff; color: var(--text); box-shadow: var(--shadow-xs); }

/* =========================================================================
   Form
   ========================================================================= */
.field { margin-bottom: 16px; }
.label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}
.input,
.textarea,
.select {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  padding: 11px 14px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-ring);
}
.textarea { resize: vertical; min-height: 200px; line-height: 1.6; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236b6b71' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 38px; }

.form-error {
  display: none;
  font-size: 0.85rem;
  color: var(--danger);
  background: var(--danger-soft);
  border-radius: var(--r-sm);
  padding: 9px 12px;
  margin-bottom: 14px;
}
.form-error.show { display: block; }

.form-hint { font-size: 0.8rem; color: var(--text-faint); margin-top: 6px; }

/* Ô mật khẩu + nút con mắt ẩn/hiện */
.input-wrap { position: relative; }
.input-wrap .input { padding-right: 44px; }
.pw-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-faint);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: color var(--dur), background var(--dur);
}
.pw-toggle:hover { color: var(--text); background: var(--bg-muted); }
.pw-toggle .eye-off { display: none; }
.pw-toggle.on .eye-open { display: none; }
.pw-toggle.on .eye-off { display: block; }

/* Hàng "Ghi nhớ đăng nhập" + "Quên mật khẩu?" */
.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}
.checkbox input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}
.link-btn {
  border: none;
  background: none;
  padding: 0;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
}
.link-btn:hover { text-decoration: underline; }
.modal-foot {
  margin-top: 18px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Banner xác thực email trên dashboard */
.verify-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 22px;
  padding: 16px 20px;
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  border-radius: var(--r);
}
.verify-banner-text { display: flex; flex-direction: column; gap: 2px; }
.verify-banner-text strong { color: var(--text); font-size: 0.95rem; }
.verify-banner-text span { color: var(--text-muted); font-size: 0.85rem; }
.verify-banner-form { display: flex; align-items: center; gap: 8px; }
.verify-banner-form .input {
  width: 130px;
  letter-spacing: 0.18em;
  text-align: center;
  font-weight: 600;
}

/* =========================================================================
   App shell (dashboard)
   ========================================================================= */
.app-bg { background: var(--bg-soft); min-height: 100vh; }
.app-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.app-bar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.app-bar-right { display: flex; align-items: center; gap: 14px; }
.balance-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent-hover);
  border: 1px solid rgba(255, 90, 31, 0.18);
  padding: 7px 14px;
  border-radius: var(--r-pill);
}
.balance-chip svg { width: 16px; height: 16px; }
.user-email { font-size: 0.85rem; color: var(--text-muted); }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
}
.panel + .panel { margin-top: 22px; }
.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.panel-title h2 { font-size: 1.18rem; }
.panel-title .sub { font-size: 0.82rem; color: var(--text-faint); }

/* =========================================================================
   Voice picker
   ========================================================================= */
/* ---- Nút mở danh sách giọng (trigger) ---- */
.voice-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r);
  background: var(--bg);
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.voice-trigger:hover { border-color: var(--accent); }
.voice-trigger.open { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.voice-trigger-avatar {
  width: 40px; height: 40px; border-radius: 12px;
  flex-shrink: 0; overflow: hidden;
  background: var(--bg-muted);
  display: grid; place-items: center;
}
.voice-trigger-avatar svg { width: 100%; height: 100%; }
.voice-trigger-info { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.voice-trigger-name { font-weight: 700; font-size: 0.95rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.voice-trigger-sub { font-size: 0.78rem; color: var(--text-faint); }
.voice-trigger-caret { color: var(--text-muted); flex-shrink: 0; transition: transform var(--dur); }
.voice-trigger.open .voice-trigger-caret { transform: rotate(180deg); }

/* ---- Danh sách giọng sổ xuống ---- */
.voice-dropdown {
  margin-top: 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--r);
  background: var(--bg);
  padding: 14px;
}
.voice-dropdown[hidden] { display: none; }
.voice-dropdown .voice-grid.is-list { max-height: 340px; overflow-y: auto; }

/* ---- Hai nút lọc Giới tính / Chất giọng (sổ danh sách) ---- */
.vselect-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.vselect { position: relative; }
.vselect-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r);
  background: var(--bg);
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.vselect-btn:hover { border-color: var(--accent); }
.vselect-btn.open { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.vselect-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.vselect-label { font-size: 0.68rem; font-weight: 700; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.04em; }
.vselect-value { font-weight: 600; font-size: 0.9rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.vselect-caret { color: var(--text-muted); flex-shrink: 0; transition: transform var(--dur); }
.vselect-btn.open .vselect-caret { transform: rotate(180deg); }
.vselect-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 30;
  border: 1.5px solid var(--border);
  border-radius: var(--r);
  background: var(--bg);
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}
.vselect-menu[hidden] { display: none; }
.vselect-option {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: none;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  transition: background var(--dur);
}
.vselect-option:hover { background: var(--bg-muted); }
.vselect-option.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.voice-tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.voice-tabs button {
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all var(--dur);
}
.voice-tabs button.active { background: var(--text); color: #fff; border-color: var(--text); }

.voice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.voice-card {
  position: relative;
  border: 1.5px solid var(--border);
  border-radius: var(--r);
  padding: 16px;
  cursor: pointer;
  background: var(--bg);
  box-shadow: 0 1px 2px rgba(24, 24, 27, 0.04);
  transition: border-color var(--dur), box-shadow var(--dur), transform var(--dur);
}
.voice-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.voice-card.selected { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 3px var(--accent-ring); }
.voice-card .vc-name { font-weight: 600; font-size: 0.95rem; margin-bottom: 3px; }
.voice-card .vc-meta { font-size: 0.78rem; color: var(--text-muted); }
.voice-card .vc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.voice-avatar {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--bg-muted); color: var(--text-muted);
  margin-bottom: 12px;
}
.voice-card.selected .voice-avatar { background: #fff; color: var(--accent); }
.voice-avatar svg { width: 20px; height: 20px; }

/* Avatar hoạt hình theo giới tính — SVG fill toàn khung, không nền */
.voice-avatar--img { background: transparent; padding: 0; overflow: hidden; }
.voice-avatar--img svg { width: 100%; height: 100%; }
.voice-card.selected .voice-avatar--img { background: transparent; }

.vc-play {
  border: 1px solid var(--border-strong);
  background: #fff;
  width: 30px; height: 30px;
  border-radius: var(--r-pill);
  display: grid; place-items: center;
  cursor: pointer;
  color: var(--text);
  flex-shrink: 0;
  transition: all var(--dur);
}
.vc-play:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
/* Tam giác play lệch trái về quang học — nudge 1px sang phải cho cân giữa, đồng cỡ ♥/🗑 */
.vc-play svg { width: 15px; height: 15px; transform: translateX(1px); }

/* ---- Cụm hành động trên thẻ giọng: yêu thích + nghe thử ---- */
.vc-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.vc-fav {
  border: 1px solid var(--border-strong);
  background: #fff;
  width: 30px; height: 30px;
  border-radius: var(--r-pill);
  display: grid; place-items: center;
  cursor: pointer; color: var(--text-faint);
  flex-shrink: 0; transition: all var(--dur);
}
.vc-fav:hover { border-color: var(--danger); color: var(--danger); }
.vc-fav.active { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); }
.vc-fav.active svg { fill: currentColor; }
.vc-fav svg { width: 15px; height: 15px; }

/* Nút xoá giọng của người dùng (tab "Giọng của tôi") */
.vc-del {
  border: 1px solid var(--border-strong);
  background: #fff;
  width: 30px; height: 30px;
  border-radius: var(--r-pill);
  display: grid; place-items: center;
  cursor: pointer; color: var(--text-faint);
  flex-shrink: 0; transition: all var(--dur);
}
.vc-del:hover { border-color: var(--danger); color: var(--danger); background: var(--danger-soft); }
.vc-del svg { width: 15px; height: 15px; }

/* badge trạng thái giọng user */
.vc-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.72rem; font-weight: 600;
  padding: 2px 8px; border-radius: var(--r-pill);
}
.vc-status.ready { background: var(--success-soft); color: var(--success); }
.vc-status.pending,
.vc-status.processing { background: #fff6e6; color: #92400e; }
.vc-status.failed { background: var(--danger-soft); color: var(--danger); }

.voice-add {
  display: grid;
  place-content: center;
  text-align: center;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--r);
  padding: 16px;
  cursor: pointer;
  color: var(--text-muted);
  background: transparent;
  transition: all var(--dur);
  min-height: 120px;
}
.voice-add:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.voice-add svg { width: 22px; height: 22px; margin: 0 auto 6px; }
.voice-add span { font-size: 0.85rem; font-weight: 600; }

/* ---- Popup chọn giọng ---- */
.voice-panel-hint { margin-top: 10px; font-size: 0.82rem; color: var(--text-faint); }
.voice-modal { max-width: 520px; background: var(--bg-soft); overflow: hidden; isolation: isolate; }
/* Lưới mờ fade từ trên xuống — khớp nền trang web (body::before) */
.voice-modal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(24, 24, 27, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(24, 24, 27, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
          mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
}
.voice-modal .vm-lang { margin: 14px 0 16px; }
.voice-modal #sysFilters[hidden] { display: none; }
.voice-modal .voice-grid.is-list { max-height: 48vh; overflow: hidden auto; }

/* ---- Modal quản trị: nền lưới + tab + dashboard từng mục ---- */
.admin-modal { max-width: 560px; background: var(--bg-soft); overflow: hidden; isolation: isolate; }
.admin-modal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(24, 24, 27, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(24, 24, 27, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
          mask-image: radial-gradient(135% 95% at 50% -8%, #000 0%, #000 40%, transparent 80%);
}
.admin-tabs { margin-top: 16px; flex-wrap: wrap; }
.admin-panel[hidden] { display: none; }

.admin-toolbar { display: flex; gap: 8px; margin-bottom: 14px; }
.admin-search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r);
  background: var(--bg);
  padding: 0 12px;
  height: 42px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.admin-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.admin-search svg { width: 16px; height: 16px; color: var(--text-faint); flex-shrink: 0; }
.admin-search input { flex: 1; min-width: 0; border: none; outline: none; background: transparent; font-size: 0.9rem; color: var(--text); }
.admin-add-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: var(--r);
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0 16px;
  height: 42px;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur);
}
.admin-add-btn:hover { background: var(--accent-hover); }
.admin-add-btn.open { background: var(--bg-muted); color: var(--text); }
.admin-add-btn svg { width: 16px; height: 16px; transition: transform var(--dur); }
.admin-add-btn.open svg { transform: rotate(45deg); }

.admin-collapse {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
.admin-collapse[hidden] { display: none; }

.admin-list {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 14px;
  max-height: 300px;
  overflow: hidden auto;
}
.admin-list .history-item { padding: 12px 16px; border-bottom: 1px solid var(--bg-muted); }
.admin-list .history-item:last-child { border-bottom: none; }
.admin-list .result-empty { padding: 28px 16px; }

/* ---- Hàng tài khoản / giọng trong modal quản trị: avatar tròn + chip trạng thái ---- */
.u-avatar {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.95rem;
  background: var(--accent-soft); color: var(--accent);
}
.u-avatar--voice { background: var(--bg-muted); color: var(--text-muted); }
.u-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.u-chip {
  font-size: 0.68rem; font-weight: 600;
  padding: 2px 8px; border-radius: var(--r-pill);
  background: var(--bg-muted); color: var(--text-muted);
}
.u-chip--admin { background: var(--accent-soft); color: var(--accent); }
.u-chip--off { background: var(--danger-soft); color: var(--danger); }
.u-chip--warn { background: #fff6e6; color: #92400e; }
.u-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* =========================================================================
   Synthesis panel
   ========================================================================= */
.counter { font-size: 0.82rem; color: var(--text-faint); }
.counter.over { color: var(--danger); font-weight: 600; }

/* ---- Công cụ editor: nạp file .txt + kiểm tra ký tự ---- */
.editor-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.editor-tools .btn svg { margin-right: 4px; }
.editor-tools-info { font-size: 0.8rem; color: var(--text-muted); margin-left: auto; }
.editor-tools-info.over { color: var(--danger); font-weight: 600; }

.controls-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.cost-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--r);
  background: var(--bg-muted);
  font-size: 0.9rem;
}
.cost-bar .cost-val { font-family: var(--font-head); font-weight: 800; font-size: 1.05rem; }
.cost-bar .insufficient { color: var(--danger); }

.action-row { display: flex; gap: 12px; margin-top: 16px; }
.action-row .btn { flex: 1; }

.quota-note { font-size: 0.8rem; color: var(--text-faint); margin-top: 8px; text-align: center; }

/* =========================================================================
   Progress / kết quả
   ========================================================================= */
.result-empty {
  text-align: center;
  color: var(--text-faint);
  padding: 36px 16px;
}
.result-empty svg { width: 40px; height: 40px; margin: 0 auto 12px; opacity: 0.5; }

.progress-track {
  height: 8px;
  background: var(--bg-muted);
  border-radius: var(--r-pill);
  overflow: hidden;
  margin: 14px 0;
}
.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #ff8a4d);
  border-radius: var(--r-pill);
  transition: width 400ms var(--ease);
}
.progress-fill.indeterminate {
  width: 40%;
  animation: slide 1.2s ease-in-out infinite;
}
@keyframes slide {
  0% { margin-left: -40%; }
  100% { margin-left: 100%; }
}

.status-line {
  display: flex; align-items: center; gap: 9px;
  font-size: 0.92rem; font-weight: 500;
}
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

audio { width: 100%; margin-top: 16px; }

/* Sidebar dashboard */
.side-card { text-align: center; }
.side-balance { font-family: var(--font-head); font-weight: 800; font-size: 2.2rem; letter-spacing: -0.02em; }
.side-card .muted { font-size: 0.85rem; }
.soon-tag {
  display: inline-block;
  font-size: 0.72rem; font-weight: 600;
  color: var(--text-faint);
  background: var(--bg-muted);
  padding: 2px 9px; border-radius: var(--r-pill);
  margin-left: 6px;
}

/* =========================================================================
   Toast
   ========================================================================= */
.toast-wrap {
  position: fixed;
  bottom: 22px; right: 22px;
  z-index: 200;
  display: flex; flex-direction: column; gap: 10px;
}
.toast {
  display: flex; align-items: center; gap: 10px;
  background: var(--text);
  color: #fff;
  font-size: 0.9rem;
  padding: 13px 18px;
  border-radius: var(--r);
  box-shadow: var(--shadow-md);
  animation: pop var(--dur) var(--ease);
  max-width: 340px;
}
.toast.ok { background: #15803d; }
.toast.err { background: var(--danger); }
.toast svg { width: 18px; height: 18px; flex-shrink: 0; }

/* =========================================================================
   Bổ sung dashboard: thân voice card, trạng thái disabled, khối kết quả,
   spinner nhỏ trong nút
   ========================================================================= */
.voice-card .vc-body { padding-right: 6px; }
.voice-card.disabled { opacity: 0.55; cursor: default; }
.voice-card.disabled:hover { transform: none; border-color: var(--border); box-shadow: none; }
.voice-card .vc-play { position: absolute; top: 12px; right: 12px; }

.result-ready .result-head { display: flex; flex-direction: column; gap: 2px; margin-bottom: 2px; }
.result-ready .result-head strong { font-family: var(--font-head); font-size: 1.02rem; }
.result-ready .result-head span { font-size: 0.82rem; color: var(--text-muted); }
.result-ready .btn { margin-top: 14px; }

/* dùng kèm .spinner: ghi đè màu để nổi trên nền nút (theo currentColor của nút) */
.spinner--sm { width: 15px; height: 15px; border-color: currentColor; border-top-color: transparent; }

/* =========================================================================
   Studio layout (dashboard mới)
   ========================================================================= */
.studio { padding-block: 30px; }

.studio-grid {
  display: grid;
  grid-template-columns: 1.55fr 0.85fr;
  gap: 22px;
  align-items: start;
}

.history-panel { margin-top: 22px; }

/* result-slot: ngăn cách nhẹ với phần trên */
.result-slot { margin-top: 20px; border-top: 1px solid var(--border); padding-top: 18px; }

/* ---- Voice picker dạng danh sách: 1 khung cuộn, các dòng có vạch ngăn
   (giống danh sách tài khoản ở tab "Người dùng" trong Quản trị) ---- */
.voice-grid.is-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
  overflow: hidden;
}

.voice-grid.is-list .voice-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: none;
  border-radius: 0;
  box-shadow: none;
  border-bottom: 1px solid var(--bg-muted);
}
.voice-grid.is-list .voice-card:last-child { border-bottom: none; }
.voice-grid.is-list .voice-card:hover { transform: none; background: var(--bg-soft); }
.voice-grid.is-list .voice-card.selected {
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--accent);
}

.voice-grid.is-list .voice-avatar { margin-bottom: 0; flex-shrink: 0; }

.voice-grid.is-list .vc-body { flex: 1; min-width: 0; padding-right: 0; }

.voice-grid.is-list .vc-actions { margin-left: auto; }
.voice-grid.is-list .vc-play {
  position: static;
  flex-shrink: 0;
}

.voice-grid.is-list .voice-add {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: auto;
  flex-direction: row;
  gap: 10px;
  padding: 12px 16px;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid var(--bg-muted);
  background: transparent;
}
.voice-grid.is-list .voice-add:hover { background: var(--accent-soft); color: var(--accent); }
.voice-grid.is-list .voice-add svg { margin: 0; }

/* ---- Lịch sử audio ---- */
.history-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.history-item:last-child { border-bottom: none; }

.history-text {
  flex: 1;
  min-width: 0;
}

.history-preview {
  font-size: 0.92rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.history-meta {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 2px;
}

.history-item audio {
  width: 240px;
  max-width: 38vw;
  margin: 0;
  flex-shrink: 0;
}

.history-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 460px; order: -1; }
  .studio-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .nav-links { display: none; }
  .feature-grid,
  .steps,
  .compare,
  .controls-row { grid-template-columns: 1fr; }
  .action-row { flex-direction: column; }
  .hero-stats { gap: 20px; }
  /* Top bar dashboard: ẩn email, thu gọn để nút Đăng xuất không bị đẩy ra ngoài */
  .app-bar-right { gap: 10px; }
  .user-email { display: none; }
  .balance-chip { font-size: 0.8rem; padding: 6px 11px; white-space: nowrap; }
  .history-item { flex-wrap: wrap; }
  .history-item audio { width: 100%; max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto; }
}

/* =========================================================================
   Bảng giá trang chủ — 6 gói thật, khách xem trước khi đăng ký
   ========================================================================= */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px 24px;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.price-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.price-card.is-popular {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), #fff 55%);
  box-shadow: var(--shadow-sm);
}
.price-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  padding: 4px 11px;
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-accent);
}
.price-name {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.price-amount {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}
.price-amount small { font-size: 1rem; font-weight: 700; color: var(--text-muted); margin-left: 2px; }
.price-chars { font-size: 0.95rem; color: var(--accent); font-weight: 600; margin-top: 8px; }
.price-card .btn { margin-top: 20px; }

/* =========================================================================
   Liên hệ admin qua Zalo (header trang chủ + dashboard)
   ========================================================================= */
.nav-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 5px 13px 5px 5px;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.nav-contact:hover {
  border-color: #0068ff;
  box-shadow: 0 2px 12px rgba(0, 104, 255, 0.2);
  transform: translateY(-1px);
}
.zalo-badge {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: #0068ff;
  color: #fff;
  flex-shrink: 0;
}
.zalo-badge svg { width: 16px; height: 16px; }
.nav-contact-num { letter-spacing: 0.01em; white-space: nowrap; }

@media (max-width: 920px) { .price-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) {
  .price-grid { grid-template-columns: 1fr; }
  .nav-contact-num { display: none; }
  .nav-contact { padding: 5px; }
}
