*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a12;
  --bg2: #12121f;
  --surface: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.08);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary2: #8b5cf6;
  --gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  --radius: 16px;
  --shadow: 0 20px 50px rgba(0,0,0,0.4);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}
.bg-glow-1 { width: 500px; height: 500px; background: #6366f1; top: -100px; right: -100px; }
.bg-glow-2 { width: 400px; height: 400px; background: #ec4899; bottom: 0; left: -100px; }

main, header, footer { position: relative; z-index: 1; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(10,10,18,0.85);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 16px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--text);
  font-weight: 800; font-size: 1.25rem;
}
.logo-icon { font-size: 1.4rem; }
.nav { display: flex; gap: 28px; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color .2s; }
.nav a:hover { color: var(--text); }
.header-actions { display: flex; gap: 10px; align-items: center; }
.header-server-clock {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  min-width: 210px;
}
.header-clock-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.header-server-clock time {
  font-size: 0.82rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: #fbbf24;
  white-space: nowrap;
}
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: 10px; font-weight: 600;
  font-size: 0.9rem; text-decoration: none; border: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, opacity .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--gradient); color: #fff;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
}
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--primary); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

/* Cards */
.card-glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

/* Hero */
.hero { padding: 80px 0 60px; }
.hero-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(99,102,241,0.15); border: 1px solid rgba(99,102,241,0.3);
  color: #a5b4fc; font-size: 0.85rem; font-weight: 600; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-lead { color: var(--muted); font-size: 1.1rem; max-width: 520px; margin-bottom: 28px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats { display: flex; gap: 32px; }
.hero-stats strong { display: block; font-size: 1.4rem; color: var(--text); }
.hero-stats span { font-size: 0.85rem; color: var(--muted); }

.hero-card { padding: 20px; box-shadow: var(--shadow); }
.hero-card-header { font-weight: 700; margin-bottom: 16px; color: #a5b4fc; }
.hero-chat { display: flex; flex-direction: column; gap: 10px; }
.chat-bubble {
  padding: 12px 16px; border-radius: 12px; font-size: 0.9rem; max-width: 90%;
}
.chat-bubble.user { background: rgba(99,102,241,0.2); align-self: flex-end; border: 1px solid rgba(99,102,241,0.3); }
.chat-bubble.ai { background: rgba(255,255,255,0.06); align-self: flex-start; border: 1px solid var(--border); }
.chat-bubble.typing { color: var(--muted); font-style: italic; }

/* Sections */
.section { padding: 70px 0; }
.section-alt { background: rgba(255,255,255,0.02); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 2rem; font-weight: 800; margin-bottom: 10px; }
.section-head p { color: var(--muted); }

/* Categories */
.categories-strip { padding: 30px 0; }
.cat-pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.cat-pill {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); cursor: pointer;
  font-weight: 500; font-size: 0.9rem; transition: all .2s;
}
.cat-pill:hover, .cat-pill.active {
  background: rgba(99,102,241,0.2); border-color: var(--primary); color: #c7d2fe;
}

/* Tools grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.tool-card {
  display: block; padding: 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  text-decoration: none; color: var(--text);
  transition: transform .2s, border-color .2s, box-shadow .2s;
  position: relative; overflow: hidden;
}
.tool-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--accent, var(--primary));
}
.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent, var(--primary));
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}
.tool-icon { font-size: 2rem; margin-bottom: 12px; }
.tool-icon-lg { font-size: 3rem; }
.tool-cat {
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--accent, var(--primary));
}
.tool-card h3 { font-size: 1.15rem; margin: 8px 0; font-weight: 700; }
.tool-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 14px; }
.tool-link { font-size: 0.85rem; font-weight: 600; color: var(--accent, #a5b4fc); }

/* Features */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px;
}
.feature-card { padding: 28px; text-align: center; }
.feature-icon { font-size: 2.2rem; margin-bottom: 14px; }
.feature-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.feature-card p { color: var(--muted); font-size: 0.9rem; }

/* CTA */
.cta-box { text-align: center; padding: 56px 32px; }
.cta-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
.cta-box p { color: var(--muted); margin-bottom: 24px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 24px; margin-top: 40px;
  background: rgba(0,0,0,0.3);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px;
}
.footer-logo { margin-bottom: 12px; }
.footer-desc { color: var(--muted); font-size: 0.9rem; max-width: 280px; }
.site-footer h4 { margin-bottom: 14px; font-size: 0.95rem; }
.site-footer a { display: block; color: var(--muted); text-decoration: none; font-size: 0.9rem; margin-bottom: 8px; }
.site-footer a:hover { color: var(--text); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; }

/* Auth page */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  max-width: 960px; width: 100%; align-items: center;
}
.auth-brand h1 { font-size: 2rem; font-weight: 800; margin: 24px 0 12px; }
.auth-brand p { color: var(--muted); margin-bottom: 24px; }
.auth-features { list-style: none; }
.auth-features li { color: var(--muted); margin-bottom: 10px; font-size: 0.95rem; }
.auth-form-box { padding: 40px; }
.auth-form-box h2 { font-size: 1.5rem; margin-bottom: 24px; }
.auth-form label { display: block; margin-bottom: 18px; }
.auth-form label span { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--muted); }
.auth-form input {
  width: 100%; padding: 14px 16px; border-radius: 10px;
  border: 1px solid var(--border); background: rgba(0,0,0,0.3);
  color: var(--text); font-size: 1rem; outline: none;
}
.auth-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.2); }
.auth-footer-note { text-align: center; margin-top: 20px; }
.auth-footer-note a { color: var(--muted); text-decoration: none; }
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 0.9rem; }
.alert-error { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.4); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.15); border: 1px solid rgba(34,197,94,0.4); color: #86efac; }

/* Dashboard */
.dashboard-hero { padding-top: 40px; }
.dash-welcome {
  display: flex; justify-content: space-between; align-items: center;
  padding: 32px; flex-wrap: wrap; gap: 20px;
}
.dash-welcome h1 { font-size: 1.8rem; margin: 8px 0; }
.dash-user-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.role-badge {
  padding: 4px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: rgba(99,102,241,0.2); color: #a5b4fc;
}
.role-admin { background: rgba(234,179,8,0.2); color: #fde047; }

/* Admin panel */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  padding: 24px;
  text-align: center;
}
.stat-card strong { display: block; font-size: 2rem; margin-bottom: 4px; }
.stat-card span { color: var(--muted); font-size: 0.85rem; }
.stat-active strong { color: #4ade80; }
.stat-pending strong { color: #fbbf24; }
.stat-suspended strong { color: #f87171; }

.admin-table-wrap { padding: 28px; overflow: hidden; }
.table-scroll { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.admin-table th,
.admin-table td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.admin-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.admin-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.admin-table small { color: var(--muted); }

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.status-active { background: rgba(34,197,94,0.15); color: #86efac; }
.status-pending { background: rgba(234,179,8,0.15); color: #fde047; }
.status-suspended { background: rgba(239,68,68,0.15); color: #fca5a5; }

.admin-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.admin-tools-cell { min-width: 220px; vertical-align: top; }
.tool-assign-details { margin-top: 4px; }
.tool-assign-details summary {
  cursor: pointer;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  list-style: none;
}
.tool-assign-details summary::-webkit-details-marker { display: none; }
.tool-assign-form { margin-top: 10px; padding-top: 10px; border-top: 1px solid rgba(255,255,255,0.08); }
.tool-assign-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}
.tool-assign-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  line-height: 1.35;
}
.tool-assign-item input { margin-top: 3px; }
.inline-form { display: inline; }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; border-radius: 8px; }
.btn-success { background: #16a34a; color: #fff; border: none; cursor: pointer; }
.btn-warn { background: #d97706; color: #fff; border: none; cursor: pointer; }
.btn-danger { background: #dc2626; color: #fff; border: none; cursor: pointer; }
.text-muted { color: var(--muted); font-size: 0.85rem; }

/* Tool page */
.tool-page-inner { max-width: 800px; }
.back-link { color: var(--muted); text-decoration: none; display: inline-block; margin-bottom: 20px; }
.back-link:hover { color: var(--text); }
.tool-page-header {
  display: flex; gap: 20px; align-items: flex-start; padding: 28px; margin-bottom: 24px;
}
.tool-page-header h1 { font-size: 1.6rem; margin: 6px 0; }
.tool-workspace { padding: 40px; }
.coming-soon { text-align: center; }
.coming-icon { font-size: 3rem; margin-bottom: 16px; }
.coming-soon h2 { margin-bottom: 10px; }
.coming-soon p { color: var(--muted); margin-bottom: 24px; }
.coming-soon textarea {
  width: 100%; padding: 16px; border-radius: 12px; margin-bottom: 16px;
  border: 1px solid var(--border); background: rgba(0,0,0,0.3); color: var(--text);
  font-family: inherit; resize: vertical;
}
.coming-soon button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Chat Bot */
.chat-section { padding-top: 24px; padding-bottom: 40px; }
.chat-container { max-width: 960px; }
.chat-topbar {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 20px; padding: 24px 28px; margin-bottom: 16px; flex-wrap: wrap;
}
.chat-topbar h1 { font-size: 1.5rem; margin: 8px 0 4px; }
.chat-topbar p { color: var(--muted); font-size: 0.9rem; }
.chat-topbar-right { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.model-select-wrap { display: flex; flex-direction: column; gap: 6px; }
.model-select-wrap span { font-size: 0.8rem; color: var(--muted); font-weight: 600; }
.model-select {
  padding: 10px 14px; border-radius: 10px; min-width: 220px;
  border: 1px solid var(--border); background: rgba(0,0,0,0.35);
  color: var(--text); font-size: 0.9rem;
}
.chat-layout { display: flex; flex-direction: column; min-height: 520px; overflow: hidden; }
.chat-messages {
  flex: 1; padding: 24px; overflow-y: auto; max-height: 58vh; min-height: 360px;
}
.chat-welcome { text-align: center; padding: 40px 20px; color: var(--muted); }
.chat-welcome-icon { font-size: 3rem; margin-bottom: 12px; }
.chat-welcome h2 { color: var(--text); margin-bottom: 8px; }
.chat-suggestions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 20px; }
.suggestion-chip {
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: rgba(99,102,241,0.1); color: #c7d2fe; cursor: pointer; font-size: 0.85rem;
  transition: background .2s;
}
.suggestion-chip:hover { background: rgba(99,102,241,0.25); }
.chat-msg { margin-bottom: 18px; max-width: 88%; }
.chat-msg-user { margin-left: auto; }
.chat-msg-user .chat-msg-body {
  background: rgba(99,102,241,0.2); border: 1px solid rgba(99,102,241,0.35);
  border-radius: 14px 14px 4px 14px;
}
.chat-msg-ai .chat-msg-body {
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  border-radius: 14px 14px 14px 4px;
}
.chat-msg-head {
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
  font-size: 0.82rem; color: var(--muted);
}
.chat-msg-model {
  padding: 2px 8px; border-radius: 999px; font-size: 0.72rem;
  background: rgba(255,255,255,0.06);
}
.chat-msg-body {
  padding: 14px 18px; line-height: 1.65; font-size: 0.95rem; word-break: break-word;
}
.chat-msg-body code {
  background: rgba(0,0,0,0.35); padding: 2px 6px; border-radius: 4px; font-size: 0.88em;
}
.chat-typing .dots::after { content: '...'; animation: dots 1.2s infinite; }
@keyframes dots { 0%,20%{content:'.'} 40%{content:'..'} 60%,100%{content:'...'} }
.chat-input-area {
  display: flex; gap: 12px; padding: 16px 20px; border-top: 1px solid var(--border);
  align-items: flex-end; background: rgba(0,0,0,0.2);
}
.chat-input-area textarea {
  flex: 1; padding: 14px 16px; border-radius: 12px; resize: none;
  border: 1px solid var(--border); background: rgba(0,0,0,0.3);
  color: var(--text); font-family: inherit; font-size: 0.95rem; max-height: 160px;
  outline: none;
}
.chat-input-area textarea:focus { border-color: var(--primary); }
.chat-disclaimer { text-align: center; color: var(--muted); font-size: 0.8rem; margin-top: 12px; }

.api-settings-form label { display: block; margin-bottom: 16px; }
.api-settings-form label span { display: block; font-weight: 600; margin-bottom: 6px; }
.api-settings-form input[type="password"],
.api-settings-form input[type="text"] {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: rgba(0,0,0,0.3); color: var(--text);
  box-sizing: border-box;
}
.api-settings-form small { display: block; margin-top: 8px; color: var(--muted); font-size: 0.82rem; line-height: 1.5; }
.api-settings-form small a { color: #a5b4fc; }

.api-settings-panel { margin-top: 40px; }
.api-settings-head { text-align: left; margin-bottom: 24px; }
.api-settings-head p { color: var(--muted); margin-top: 6px; }

.api-key-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(0,0,0,0.22);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.api-key-card-openai { margin-bottom: 28px; }
.api-key-card-claude.is-active {
  border-color: rgba(34,197,94,0.45);
  box-shadow: 0 0 0 1px rgba(34,197,94,0.12);
  background: rgba(34,197,94,0.05);
}
.api-key-card-claude.is-inactive {
  border-color: rgba(255,255,255,0.08);
  opacity: 0.88;
}

.api-key-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.api-key-card-top h3 {
  font-size: 1rem;
  margin: 0;
  color: var(--text);
}
.api-key-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.api-key-card-desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.key-status-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.key-status-badge.active {
  background: rgba(34,197,94,0.18);
  color: #86efac;
  border: 1px solid rgba(34,197,94,0.35);
}
.key-status-badge.inactive {
  background: rgba(148,163,184,0.12);
  color: #94a3b8;
  border: 1px solid rgba(148,163,184,0.22);
}

.key-provider-pill {
  flex-shrink: 0;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.key-provider-openai { background: rgba(16,163,127,0.15); color: #6ee7b7; }
.key-provider-anthropic { background: rgba(217,119,87,0.15); color: #fdba74; }
.key-provider-claudeopus { background: rgba(99,102,241,0.15); color: #c4b5fd; }

.api-key-current {
  margin-bottom: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}
.api-key-current-label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.api-key-current code {
  display: block;
  font-family: Consolas, Monaco, monospace;
  font-size: 0.82rem;
  color: #cbd5e1;
  word-break: break-all;
  line-height: 1.4;
}

.api-key-field { margin-bottom: 12px; }
.api-key-field span {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #cbd5e1;
}

.api-key-active-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
}
.api-key-active-choice input { width: auto; margin: 0; accent-color: #22c55e; }
.api-key-active-choice span { font-size: 0.88rem; font-weight: 600; color: var(--text); }

.api-claude-section { margin-top: 8px; }
.api-claude-section-head { margin-bottom: 16px; }
.api-claude-section-head h3 { font-size: 1.05rem; margin-bottom: 6px; }
.api-claude-section-head p { color: var(--muted); font-size: 0.88rem; line-height: 1.5; }

.api-key-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.api-settings-actions {
  margin-top: 20px;
  padding-top: 8px;
}

@media (max-width: 900px) {
  .api-key-cards { grid-template-columns: 1fr; }
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .auth-wrap { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .nav, .header-actions { display: none; }
  .header-server-clock { display: none; }
  .mobile-menu-btn { display: block; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: 68px; left: 0; right: 0; background: var(--bg2);
    padding: 20px; border-bottom: 1px solid var(--border);
  }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
}