/* ============================================================
   ReviveAuto - Main Stylesheet
   Mobile-first • Responsive • Light (default) + Dark themes
   Colors: Navy #0A1F44 • Red #D62828 • Green #2A9D8F
   ============================================================ */

/* ------------------------------------------------------------
   1. THEME VARIABLES — LIGHT (DEFAULT)
   ------------------------------------------------------------ */
:root {
  /* Brand */
  --ra-navy: #0A1F44;
  --ra-red: #D62828;
  --ra-green: #2A9D8F;
  --ra-amber: #F4A261;
  --ra-blue: #2563EB;

  /* Surface */
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-elev: #FFFFFF;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --divider: #EDF2F7;

  /* Text */
  --text: #1E1E1E;
  --text-muted: #64748B;
  --text-invert: #FFFFFF;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);

  /* Radius & Motion */
  --r-sm: 8px;
  --r: 12px;
  --r-lg: 18px;
  --r-xl: 24px;
  --r-pill: 999px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --speed: 0.25s;

  /* Layout */
  --max: 1240px;
  --nav-h: 68px;
}

/* ------------------------------------------------------------
   2. THEME VARIABLES — DARK
   ------------------------------------------------------------ */
[data-theme="dark"] {
  --bg: #0B0F19;
  --bg-soft: #111827;
  --bg-elev: #111827;
  --card: #111827;
  --border: #1F2937;
  --divider: #1F2937;

  --text: #F1F5F9;
  --text-muted: #94A3B8;
  --text-invert: #0B0F19;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.7);
}

/* ------------------------------------------------------------
   3. RESET & BASE
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--speed) var(--ease), color var(--speed) var(--ease);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--ra-blue);
  text-decoration: none;
  transition: opacity var(--speed) var(--ease);
}

a:hover {
  opacity: 0.8;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ------------------------------------------------------------
   4. LAYOUT HELPERS
   ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

main {
  flex: 1;
  padding: 24px 0 80px;
}

/* ------------------------------------------------------------
   5. NAVBAR
   ------------------------------------------------------------ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(12px);
  transition: background var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.navbar-inner {
  height: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo .logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--ra-navy), var(--ra-red));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: 15px;
}

.logo span.brand-red {
  color: var(--ra-red);
}

/* Nav links */
.nav-links {
  display: none;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  transition: all var(--speed) var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--bg-soft);
  opacity: 1;
}

/* Right side actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Hamburger */
.hamburger {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--speed) var(--ease);
}

.hamburger span + span {
  margin-top: 4px;
}

/* Mobile drawer */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 20px 16px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all var(--speed) var(--ease);
  overflow-y: auto;
  z-index: 99;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  display: block;
  padding: 14px 12px;
  border-radius: var(--r);
  color: var(--text);
  font-weight: 500;
  border-bottom: 1px solid var(--divider);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu hr {
  border: 0;
  border-top: 1px solid var(--divider);
  margin: 10px 0;
}

/* ------------------------------------------------------------
   6. THEME TOGGLE
   ------------------------------------------------------------ */
.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--speed) var(--ease);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--speed) var(--ease), opacity var(--speed) var(--ease);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ------------------------------------------------------------
   7. BUTTONS
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--r);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--speed) var(--ease);
  text-align: center;
  line-height: 1.2;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--ra-navy);
  color: #fff;
}

.btn-primary:hover {
  background: #071633;
  opacity: 1;
}

.btn-danger {
  background: var(--ra-red);
  color: #fff;
}

.btn-danger:hover {
  background: #b91c1c;
  opacity: 1;
}

.btn-success {
  background: var(--ra-green);
  color: #fff;
}

.btn-success:hover {
  background: #21867a;
  opacity: 1;
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background: var(--bg-soft);
  opacity: 1;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text);
  background: var(--bg-soft);
  opacity: 1;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 13.5px;
  border-radius: var(--r-sm);
}

.btn-lg {
  padding: 16px 28px;
  font-size: 16px;
}

/* ------------------------------------------------------------
   8. CARDS
   ------------------------------------------------------------ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--speed) var(--ease);
}

.card:hover {
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.card-sub {
  font-size: 13px;
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   9. HERO (LANDING PAGE)
   ------------------------------------------------------------ */
.hero {
  padding: 60px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(30px, 6vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--ra-navy), var(--ra-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(15px, 2.4vw, 19px);
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 28px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 48px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px 20px;
  transition: all var(--speed) var(--ease);
}

.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(10, 31, 68, 0.1), rgba(214, 40, 40, 0.1));
  color: var(--ra-navy);
  font-size: 22px;
}

[data-theme="dark"] .feature .icon {
  background: linear-gradient(135deg, rgba(214, 40, 40, 0.15), rgba(10, 31, 68, 0.2));
  color: #fff;
}

.feature h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature p {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0;
}

/* ------------------------------------------------------------
   10. FORMS
   ------------------------------------------------------------ */
.form-wrap {
  max-width: 440px;
  margin: 32px auto;
  padding: 0 16px;
}

.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 32px 24px;
  box-shadow: var(--shadow);
}

.form-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  text-align: center;
}

.form-subtitle {
  font-size: 14.5px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 15px;
  transition: all var(--speed) var(--ease);
  outline: none;
}

.form-control:focus {
  border-color: var(--ra-navy);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(10, 31, 68, 0.12);
}

[data-theme="dark"] .form-control:focus {
  border-color: var(--ra-red);
  box-shadow: 0 0 0 3px rgba(214, 40, 40, 0.18);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

select.form-control {
  cursor: pointer;
}

.form-hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 5px;
}

.form-footer {
  text-align: center;
  margin-top: 18px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   11. DASHBOARD GRIDS
   ------------------------------------------------------------ */
.dash-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.dash-header h1 {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.dash-header p {
  color: var(--text-muted);
  font-size: 14.5px;
}

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 18px 16px;
  transition: all var(--speed) var(--ease);
}

.stat:hover {
  box-shadow: var(--shadow);
}

.stat-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.stat-value.green { color: var(--ra-green); }
.stat-value.red { color: var(--ra-red); }
.stat-value.amber { color: var(--ra-amber); }

.stat-meta {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Content two-column */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* ------------------------------------------------------------
   12. TABLES / LISTS
   ------------------------------------------------------------ */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--card);
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 560px;
}

th,
td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--divider);
  white-space: nowrap;
}

th {
  background: var(--bg-soft);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--bg-soft);
}

.tx-list {
  list-style: none;
}

.tx-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--divider);
}

.tx-item:last-child {
  border-bottom: none;
}

.tx-info {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.tx-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--bg-soft);
  color: var(--ra-navy);
  font-size: 17px;
  flex-shrink: 0;
}

[data-theme="dark"] .tx-icon { color: #fff; }

.tx-meta {
  min-width: 0;
}

.tx-meta strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
}

.tx-meta small {
  font-size: 12.5px;
  color: var(--text-muted);
}

.tx-amount {
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
}

.tx-amount.pos { color: var(--ra-green); }
.tx-amount.neg { color: var(--ra-red); }

/* ------------------------------------------------------------
   13. BADGES
   ------------------------------------------------------------ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.badge-pending {
  background: rgba(244, 162, 97, 0.15);
  color: #B7701C;
}

.badge-success {
  background: rgba(42, 157, 143, 0.15);
  color: #1F7A70;
}

.badge-danger {
  background: rgba(214, 40, 40, 0.15);
  color: #A81E1E;
}

.badge-info {
  background: rgba(37, 99, 235, 0.15);
  color: #1D4ED8;
}

[data-theme="dark"] .badge-pending { color: #F4A261; }
[data-theme="dark"] .badge-success { color: #4ADED0; }
[data-theme="dark"] .badge-danger { color: #F87171; }
[data-theme="dark"] .badge-info { color: #60A5FA; }

/* ------------------------------------------------------------
   14. ALERTS / FLASH
   ------------------------------------------------------------ */
.flash-wrap {
  position: fixed;
  top: calc(var(--nav-h) + 12px);
  right: 12px;
  left: 12px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.flash {
  pointer-events: auto;
  padding: 12px 16px;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  background: var(--card);
  animation: slideIn 0.3s var(--ease);
}

.flash-success { border-left: 4px solid var(--ra-green); }
.flash-danger { border-left: 4px solid var(--ra-red); }
.flash-warning { border-left: 4px solid var(--ra-amber); }
.flash-info { border-left: 4px solid var(--ra-blue); }

@keyframes slideIn {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ------------------------------------------------------------
   15. WALLET / QR
   ------------------------------------------------------------ */
.wallet-box {
  background: linear-gradient(135deg, var(--ra-navy), #12306B);
  color: #fff;
  border-radius: var(--r-xl);
  padding: 24px 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-lg);
}

.wallet-box h2 {
  font-size: 15px;
  font-weight: 600;
  opacity: 0.85;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.wallet-address {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  word-break: break-all;
  background: rgba(255, 255, 255, 0.12);
  padding: 14px;
  border-radius: var(--r);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.qr-wrap {
  background: #fff;
  padding: 12px;
  border-radius: var(--r);
  width: fit-content;
  margin: 16px auto 0;
}

/* ------------------------------------------------------------
   16. LIVE CHAT
   ------------------------------------------------------------ */
.chat-shell {
  display: grid;
  grid-template-columns: 1fr;
  height: calc(100vh - var(--nav-h) - 40px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
}

.chat-sidebar {
  display: none;
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 16px;
}

.chat-agent {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--speed) var(--ease);
}

.chat-agent:hover { background: var(--bg); }
.chat-agent.active { background: var(--bg); box-shadow: var(--shadow-sm); }

.chat-agent .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ra-navy), var(--ra-red));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.chat-agent .info strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
}

.chat-agent .info small {
  font-size: 12px;
  color: var(--text-muted);
}

.chat-main {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.chat-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg);
}

.chat-header .status-dot {
  width: 9px;
  height: 9px;
  background: var(--ra-green);
  border-radius: 50%;
  display: inline-block;
}

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-soft);
}

.msg {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.45;
  word-wrap: break-word;
  animation: msgIn 0.2s var(--ease);
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.msg.me {
  align-self: flex-end;
  background: var(--ra-navy);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.msg.agent {
  align-self: flex-start;
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.msg small {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  opacity: 0.7;
}

.chat-input {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.chat-input input {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 15px;
  outline: none;
}

.chat-input input:focus {
  border-color: var(--ra-navy);
}

.chat-input button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--ra-navy);
  color: #fff;
  border: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all var(--speed) var(--ease);
}

.chat-input button:hover {
  background: var(--ra-red);
}

/* ------------------------------------------------------------
   17. UTILITIES
   ------------------------------------------------------------ */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.hide-mobile { display: none; }
.show-mobile { display: block; }
.w-full { width: 100%; }

/* ------------------------------------------------------------
   18. FOOTER — EXPANDED GRID
   ------------------------------------------------------------ */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 48px 0 32px;
  margin-top: auto;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  text-align: left;
}

.footer .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
  grid-column: 1 / -1;
}

.footer-links-group h4 {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 14px;
}

.footer-links-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-group a {
  color: var(--text-muted);
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links-group a:hover {
  color: var(--ra-red);
  opacity: 1;
}

.footer-bottom {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid var(--divider);
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
  font-size: 13px;
}

.footer-tagline {
  font-size: 12.5px;
  opacity: 0.85;
}

/* ------------------------------------------------------------
   19. RESPONSIVE — TABLET (>= 640px)
   ------------------------------------------------------------ */
@media (min-width: 640px) {
  .container { padding: 0 24px; }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .chat-shell {
    grid-template-columns: 260px 1fr;
  }

  .chat-sidebar { display: block; }

  .flash-wrap {
    left: auto;
    right: 20px;
    width: 380px;
  }

  .form-card { padding: 40px 32px; }

  .split {
    grid-template-columns: 1fr 1fr;
  }

  /* Footer tablet layout */
  .footer-inner {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px 40px;
    padding: 0 24px;
  }
  .footer .logo {
    grid-column: 1 / -1;
    margin-bottom: 8px;
  }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ------------------------------------------------------------
   20. RESPONSIVE — DESKTOP (>= 960px)
   ------------------------------------------------------------ */
@media (min-width: 960px) {
  :root { --nav-h: 72px; }

  .container { padding: 0 32px; }

  .nav-links { display: flex; }
  .hamburger { display: none; }

  .hide-mobile { display: block; }
  .show-mobile { display: none; }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .split-2-1 {
    grid-template-columns: 2fr 1fr;
  }

  .split-1-2 {
    grid-template-columns: 1fr 2fr;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .card {
    padding: 24px;
  }

  .dash-header {
    margin-bottom: 32px;
  }

  /* Footer desktop layout */
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 0 32px;
  }
  .footer .logo { grid-column: 1 / -1; }
}

/* ------------------------------------------------------------
   21. RESPONSIVE — LARGE (>= 1200px)
   ------------------------------------------------------------ */
@media (min-width: 1200px) {
  .feature-grid { gap: 24px; }
  .stats-grid { gap: 18px; }
}

/* ------------------------------------------------------------
   22. SCROLLBARS (subtle)
   ------------------------------------------------------------ */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--r-pill);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ------------------------------------------------------------
   23. REDUCED MOTION
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ------------------------------------------------------------
   24. PRINT
   ------------------------------------------------------------ */
@media print {
  .navbar, .footer, .theme-toggle, .chat-input, .btn { display: none !important; }
  body { background: #fff; color: #000; }
}