/* UI skins — applied via html[data-ui="..."] (default/cyber already in app.css :root) */

html[data-ui="modern"] {
  --bg: #f5f7fb;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #eef2f8;
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: #2563eb;
  --text: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --secondary: #3b82f6;
  --accent: #059669;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --info: #0284c7;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  --font: "Segoe UI", system-ui, sans-serif;
  --font-display: "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", Consolas, monospace;
  --grid-line: transparent;
  --glow-cyan: rgba(37, 99, 235, 0.08);
  --glow-lime: rgba(5, 150, 105, 0.06);
  --sidebar-bg: #0f172a;
  --topbar-bg: rgba(255, 255, 255, 0.92);
  --card-bg: #ffffff;
  --card-shine: transparent;
  --table-head: #f1f5f9;
  --hover-row: rgba(37, 99, 235, 0.04);
  --btn-primary-bg: #2563eb;
  --dock-bg: rgba(255, 255, 255, 0.96);
  --overlay: rgba(15, 23, 42, 0.4);
  --theme-color: #f5f7fb;
}
html[data-ui="modern"] .sidebar { color: #e2e8f0; }
html[data-ui="modern"] .sidebar-brand h1,
html[data-ui="modern"] .nav a,
html[data-ui="modern"] .nav-toggle { color: #cbd5e1; }
html[data-ui="modern"] .nav a.active { color: #fff; background: rgba(37,99,235,.35); border-left-color: #60a5fa; }
html[data-ui="modern"] .btn-primary { color: #fff; border-color: #2563eb; }
html[data-ui="modern"] .card::before,
html[data-ui="modern"] .deck-panel::before { display: none; }
html[data-ui="modern"] body {
  background: radial-gradient(900px 400px at 0% 0%, rgba(37,99,235,.08), transparent 55%), var(--bg);
}

html[data-ui="swiss"] {
  --bg: #f2f0eb;
  --bg-elevated: #fff;
  --surface: #fff;
  --surface-2: #ebe8e1;
  --border: #111;
  --border-strong: #111;
  --text: #111;
  --text-muted: #444;
  --primary: #111;
  --secondary: #333;
  --accent: #c2410c;
  --danger: #b91c1c;
  --success: #166534;
  --warning: #a16207;
  --info: #1d4ed8;
  --radius: 0;
  --shadow: none;
  --font: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
  --grid-line: rgba(17, 17, 17, 0.08);
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: #fff;
  --topbar-bg: #fff;
  --card-bg: #fff;
  --card-shine: #111;
  --table-head: #ebe8e1;
  --hover-row: rgba(0,0,0,.03);
  --btn-primary-bg: #111;
  --dock-bg: #fff;
  --overlay: rgba(0,0,0,.35);
  --theme-color: #f2f0eb;
}
html[data-ui="swiss"] .btn-primary { color: #fff; border-color: #111; }
html[data-ui="swiss"] .btn { text-transform: uppercase; letter-spacing: 0.12em; }
html[data-ui="swiss"] .card,
html[data-ui="swiss"] .deck-panel { border-width: 1.5px; }
html[data-ui="swiss"] .sidebar { border-right-width: 1.5px; }
html[data-ui="swiss"] .page-heading h2 { letter-spacing: 0.14em; }

html[data-ui="flat"] {
  --bg: #ecf0f1;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #e8eef1;
  --border: #bdc3c7;
  --border-strong: #2980b9;
  --text: #2c3e50;
  --text-muted: #7f8c8d;
  --primary: #3498db;
  --secondary: #5dade2;
  --accent: #27ae60;
  --danger: #e74c3c;
  --success: #27ae60;
  --warning: #f39c12;
  --info: #2980b9;
  --radius: 6px;
  --shadow: none;
  --font: "Segoe UI", Tahoma, sans-serif;
  --font-display: "Segoe UI", Tahoma, sans-serif;
  --font-mono: Consolas, monospace;
  --grid-line: transparent;
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: #2c3e50;
  --topbar-bg: #fff;
  --card-bg: #fff;
  --card-shine: transparent;
  --table-head: #ecf0f1;
  --hover-row: #f7f9fa;
  --btn-primary-bg: #3498db;
  --dock-bg: #fff;
  --overlay: rgba(44, 62, 80, 0.4);
  --theme-color: #ecf0f1;
}
html[data-ui="flat"] .sidebar,
html[data-ui="flat"] .sidebar-brand h1,
html[data-ui="flat"] .nav a,
html[data-ui="flat"] .nav-toggle { color: #ecf0f1; }
html[data-ui="flat"] .nav a.active { background: #3498db; color: #fff; border-left: 0; }
html[data-ui="flat"] .btn-primary { color: #fff; }
html[data-ui="flat"] .card::before { display: none; }
html[data-ui="flat"] body { background: var(--bg); }

html[data-ui="style3d"] {
  --bg: #d7dce4;
  --bg-elevated: #eceff4;
  --surface: #e8ecf2;
  --surface-2: #cfd6e2;
  --border: #8b95a5;
  --border-strong: #3b82f6;
  --text: #1e293b;
  --text-muted: #475569;
  --primary: #1d4ed8;
  --secondary: #2563eb;
  --accent: #15803d;
  --danger: #b91c1c;
  --success: #15803d;
  --warning: #b45309;
  --info: #0369a1;
  --radius: 10px;
  --shadow: 4px 4px 0 #94a3b8, inset 0 1px 0 #fff;
  --font: "Trebuchet MS", "Segoe UI", sans-serif;
  --font-display: "Trebuchet MS", "Segoe UI", sans-serif;
  --font-mono: "Courier New", monospace;
  --grid-line: transparent;
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: linear-gradient(180deg, #c9d2df, #aeb9c9);
  --topbar-bg: #dfe5ee;
  --card-bg: linear-gradient(180deg, #f4f6fa, #d9dee8);
  --card-shine: #fff;
  --table-head: #cfd6e2;
  --hover-row: rgba(29,78,216,.06);
  --btn-primary-bg: linear-gradient(180deg, #60a5fa, #2563eb);
  --dock-bg: #dfe5ee;
  --overlay: rgba(30, 41, 59, 0.4);
  --theme-color: #d7dce4;
}
html[data-ui="style3d"] .btn {
  box-shadow: 0 3px 0 #64748b, inset 0 1px 0 rgba(255,255,255,.55);
  border-color: #64748b;
}
html[data-ui="style3d"] .btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #64748b, inset 0 2px 4px rgba(0,0,0,.2);
}
html[data-ui="style3d"] .btn-primary { color: #fff; border-color: #1e40af; box-shadow: 0 3px 0 #1e3a8a, inset 0 1px 0 rgba(255,255,255,.35); }
html[data-ui="style3d"] .card,
html[data-ui="style3d"] .deck-panel {
  box-shadow: 6px 6px 0 #94a3b8, inset 0 1px 0 #fff;
  border-color: #7c8798;
}
html[data-ui="style3d"] .form-control {
  box-shadow: inset 2px 2px 4px rgba(0,0,0,.12);
  border-color: #7c8798;
}
html[data-ui="style3d"] body { background: var(--bg); }

html[data-ui="winxp"] {
  --bg: #3a6ea5;
  --bg-elevated: #ece9d8;
  --surface: #ece9d8;
  --surface-2: #d4d0c8;
  --border: #0054e3;
  --border-strong: #0054e3;
  --text: #000;
  --text-muted: #333;
  --primary: #0054e3;
  --secondary: #1e74dd;
  --accent: #008080;
  --danger: #c00;
  --success: #008000;
  --warning: #808000;
  --info: #000080;
  --radius: 3px;
  --shadow: inset 1px 1px 0 #fff, inset -1px -1px 0 #808080;
  --font: Tahoma, "MS Sans Serif", sans-serif;
  --font-display: Tahoma, "MS Sans Serif", sans-serif;
  --font-mono: "Lucida Console", monospace;
  --grid-line: transparent;
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: linear-gradient(180deg, #245edb 0%, #1a4cb3 40%, #0f2f7a 100%);
  --topbar-bg: linear-gradient(180deg, #0a246a, #3a6ea5);
  --card-bg: #ece9d8;
  --card-shine: transparent;
  --table-head: #d4d0c8;
  --hover-row: #c1d2ee;
  --btn-primary-bg: linear-gradient(180deg, #fff, #ece9d8);
  --dock-bg: linear-gradient(180deg, #245edb, #1a4cb3);
  --overlay: rgba(0,0,0,.35);
  --theme-color: #3a6ea5;
}
html[data-ui="winxp"] body {
  background: #3a6ea5;
  background-image: none;
}
html[data-ui="winxp"] .sidebar-brand h1,
html[data-ui="winxp"] .nav a,
html[data-ui="winxp"] .nav-toggle,
html[data-ui="winxp"] .nav-label { color: #fff; }
html[data-ui="winxp"] .nav a.active {
  background: linear-gradient(180deg, #3c81f3, #1657d2);
  color: #fff;
  border-left: 0;
  border-radius: 3px;
}
html[data-ui="winxp"] .topbar {
  color: #fff;
  border-bottom: 2px solid #0831d9;
}
html[data-ui="winxp"] .page-heading h2,
html[data-ui="winxp"] .breadcrumb,
html[data-ui="winxp"] .breadcrumb a { color: #fff; }
html[data-ui="winxp"] .btn {
  background: linear-gradient(180deg, #fff, #ece9d8);
  border: 1px solid #003c74;
  color: #000;
  border-radius: 3px;
  box-shadow: inset 1px 1px 0 #fff;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}
html[data-ui="winxp"] .btn-primary {
  background: linear-gradient(180deg, #fff, #d4e4fc 45%, #a8c6f0);
  border-color: #003c74;
  color: #000;
}
html[data-ui="winxp"] .card,
html[data-ui="winxp"] .deck-panel {
  border: 2px solid #0054e3;
  border-radius: 0;
  box-shadow: inset 1px 1px 0 #fff;
}
html[data-ui="winxp"] .card-header {
  background: linear-gradient(90deg, #0a246a, #a6caf0);
  color: #fff;
  border-bottom: 1px solid #0054e3;
}
html[data-ui="winxp"] .card-header h3 { color: #fff; }
html[data-ui="winxp"] .form-control {
  border: 2px inset #808080;
  background: #fff;
  border-radius: 0;
  box-shadow: none;
}
html[data-ui="winxp"] .mobile-dock a,
html[data-ui="winxp"] .mobile-dock button { color: #fff; }
html[data-ui="winxp"] .mobile-dock a.active { color: #ffe45c; }

html[data-ui="glass"] {
  --bg: #0b1220;
  --bg-elevated: rgba(255,255,255,0.06);
  --surface: rgba(255,255,255,0.08);
  --surface-2: rgba(255,255,255,0.12);
  --border: rgba(255,255,255,0.18);
  --border-strong: rgba(125, 211, 252, 0.55);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #7dd3fc;
  --secondary: #bae6fd;
  --accent: #bef264;
  --danger: #fb7185;
  --success: #4ade80;
  --warning: #fbbf24;
  --info: #38bdf8;
  --radius: 18px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --font: "Space Grotesk", system-ui, sans-serif;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --grid-line: rgba(125, 211, 252, 0.04);
  --glow-cyan: rgba(56, 189, 248, 0.18);
  --glow-lime: rgba(190, 242, 100, 0.1);
  --sidebar-bg: rgba(15, 23, 42, 0.55);
  --topbar-bg: rgba(15, 23, 42, 0.45);
  --card-bg: rgba(255,255,255,0.08);
  --card-shine: rgba(255,255,255,0.45);
  --table-head: rgba(255,255,255,0.06);
  --hover-row: rgba(125, 211, 252, 0.08);
  --btn-primary-bg: rgba(125, 211, 252, 0.18);
  --dock-bg: rgba(15, 23, 42, 0.65);
  --overlay: rgba(2, 6, 23, 0.55);
  --theme-color: #0b1220;
}
html[data-ui="glass"] .sidebar,
html[data-ui="glass"] .topbar,
html[data-ui="glass"] .card,
html[data-ui="glass"] .deck-panel,
html[data-ui="glass"] .mobile-dock,
html[data-ui="glass"] .auth-card {
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}
html[data-ui="glass"] body {
  background:
    radial-gradient(800px 500px at 10% 0%, rgba(56,189,248,.25), transparent 50%),
    radial-gradient(700px 400px at 90% 20%, rgba(167,139,250,.2), transparent 45%),
    linear-gradient(160deg, #020617, #0f172a 45%, #111827);
}

html[data-ui="neumorph"] {
  --bg: #e6e9ef;
  --bg-elevated: #e6e9ef;
  --surface: #e6e9ef;
  --surface-2: #dde1e9;
  --border: transparent;
  --border-strong: #6b7280;
  --text: #334155;
  --text-muted: #64748b;
  --primary: #4f46e5;
  --secondary: #6366f1;
  --accent: #0d9488;
  --danger: #e11d48;
  --success: #059669;
  --warning: #d97706;
  --info: #0284c7;
  --radius: 16px;
  --shadow: 8px 8px 16px #c5c9d1, -8px -8px 16px #ffffff;
  --font: "Segoe UI", system-ui, sans-serif;
  --font-display: "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, Consolas, monospace;
  --grid-line: transparent;
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: #e6e9ef;
  --topbar-bg: #e6e9ef;
  --card-bg: #e6e9ef;
  --card-shine: transparent;
  --table-head: #dde1e9;
  --hover-row: rgba(79,70,229,.05);
  --btn-primary-bg: #e6e9ef;
  --dock-bg: #e6e9ef;
  --overlay: rgba(51, 65, 85, 0.35);
  --theme-color: #e6e9ef;
}
html[data-ui="neumorph"] body { background: var(--bg); }
html[data-ui="neumorph"] .card,
html[data-ui="neumorph"] .deck-panel,
html[data-ui="neumorph"] .sidebar,
html[data-ui="neumorph"] .topbar,
html[data-ui="neumorph"] .btn,
html[data-ui="neumorph"] .form-control,
html[data-ui="neumorph"] .icon-btn,
html[data-ui="neumorph"] .theme-toggle,
html[data-ui="neumorph"] .user-chip {
  border: none;
  box-shadow: 8px 8px 16px #c5c9d1, -8px -8px 16px #ffffff;
}
html[data-ui="neumorph"] .form-control {
  box-shadow: inset 4px 4px 8px #c5c9d1, inset -4px -4px 8px #ffffff;
}
html[data-ui="neumorph"] .btn-primary { color: var(--primary); }
html[data-ui="neumorph"] .card::before { display: none; }
html[data-ui="neumorph"] .nav a.active {
  box-shadow: inset 4px 4px 8px #c5c9d1, inset -4px -4px 8px #ffffff;
  border-left: 0;
}

html[data-ui="minimal"] {
  --bg: #ffffff;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #fafafa;
  --border: #e5e5e5;
  --border-strong: #171717;
  --text: #171717;
  --text-muted: #737373;
  --primary: #171717;
  --secondary: #404040;
  --accent: #525252;
  --danger: #b91c1c;
  --success: #166534;
  --warning: #a16207;
  --info: #1d4ed8;
  --radius: 2px;
  --shadow: none;
  --font: "Segoe UI", system-ui, sans-serif;
  --font-display: "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, Consolas, monospace;
  --grid-line: transparent;
  --glow-cyan: transparent;
  --glow-lime: transparent;
  --sidebar-bg: #fafafa;
  --topbar-bg: #fff;
  --card-bg: #fff;
  --card-shine: transparent;
  --table-head: #fafafa;
  --hover-row: #f5f5f5;
  --btn-primary-bg: #171717;
  --dock-bg: #fff;
  --overlay: rgba(0,0,0,.25);
  --theme-color: #ffffff;
}
html[data-ui="minimal"] body { background: #fff; }
html[data-ui="minimal"] .btn-primary { color: #fff; }
html[data-ui="minimal"] .card::before { display: none; }
html[data-ui="minimal"] .stat-card .value { letter-spacing: -0.04em; }

html[data-ui="terminal"] {
  --bg: #020804;
  --bg-elevated: #041108;
  --surface: #06140b;
  --surface-2: #0a1c10;
  --border: rgba(74, 222, 128, 0.35);
  --border-strong: #4ade80;
  --text: #bbf7d0;
  --text-muted: #4ade80;
  --primary: #4ade80;
  --secondary: #86efac;
  --accent: #a3e635;
  --danger: #f87171;
  --success: #22c55e;
  --warning: #facc15;
  --info: #67e8f9;
  --radius: 0;
  --shadow: 0 0 0 1px rgba(74, 222, 128, 0.15);
  --font: "IBM Plex Mono", "Consolas", monospace;
  --font-display: "IBM Plex Mono", "Consolas", monospace;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --grid-line: rgba(74, 222, 128, 0.06);
  --glow-cyan: rgba(74, 222, 128, 0.1);
  --glow-lime: rgba(163, 230, 53, 0.08);
  --sidebar-bg: #030a05;
  --topbar-bg: rgba(2, 8, 4, 0.92);
  --card-bg: #06140b;
  --card-shine: #4ade80;
  --table-head: #041108;
  --hover-row: rgba(74, 222, 128, 0.06);
  --btn-primary-bg: rgba(74, 222, 128, 0.12);
  --dock-bg: rgba(2, 8, 4, 0.95);
  --overlay: rgba(0,0,0,.7);
  --theme-color: #020804;
}
html[data-ui="terminal"] body {
  background:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(74,222,128,.03) 3px),
    var(--bg);
  text-shadow: 0 0 6px rgba(74, 222, 128, 0.25);
}
html[data-ui="terminal"] .btn { text-transform: uppercase; }

/* Ensure cyber is explicit too */
html[data-ui="cyber"] {
  /* inherits :root / dark tokens from app.css */
}

/* Settings theme picker */
.settings-box {
  margin-top: 16px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-2) 80%, transparent);
}
.settings-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 600;
  color: var(--text);
}
.settings-check input { margin-top: 3px; }
.theme-picker-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
  padding-right: 4px;
}
.theme-option {
  display: grid;
  grid-template-columns: 18px 42px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--bg-elevated);
}
.theme-option.is-selected,
.theme-option:has(input:checked) {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}
.theme-option input { margin: 0; }
.theme-swatch {
  width: 42px; height: 28px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, #111 40%, #22d3ee 40%, #22d3ee 70%, #a3e635 70%);
}
.theme-swatch[data-preview="modern"] { background: linear-gradient(135deg, #0f172a 45%, #2563eb 45%); }
.theme-swatch[data-preview="swiss"] { background: linear-gradient(135deg, #f2f0eb 50%, #111 50%); }
.theme-swatch[data-preview="flat"] { background: linear-gradient(90deg, #2c3e50 33%, #3498db 33%, #3498db 66%, #27ae60 66%); }
.theme-swatch[data-preview="style3d"] { background: linear-gradient(180deg, #f4f6fa, #94a3b8); }
.theme-swatch[data-preview="winxp"] { background: linear-gradient(180deg, #245edb, #3a6ea5 55%, #ece9d8 55%); }
.theme-swatch[data-preview="glass"] { background: linear-gradient(135deg, #0b1220, #7dd3fc); }
.theme-swatch[data-preview="neumorph"] { background: radial-gradient(circle at 30% 30%, #fff, #c5c9d1); }
.theme-swatch[data-preview="minimal"] { background: linear-gradient(90deg, #fff 70%, #171717 70%); }
.theme-swatch[data-preview="terminal"] { background: linear-gradient(135deg, #020804, #4ade80); }
.theme-swatch[data-preview="cyber"] { background: linear-gradient(135deg, #07090d 40%, #22d3ee 40%, #22d3ee 70%, #a3e635 70%); }
.theme-meta strong { display: block; font-size: 12px; letter-spacing: 0.04em; }
.theme-meta small { display: block; color: var(--text-muted); font-size: 11px; font-weight: 400; margin-top: 2px; line-height: 1.35; }

.ui-skin-select {
  max-width: 150px;
  padding: 6px 8px;
  font-size: 11px;
  text-transform: none;
  letter-spacing: 0;
  height: 36px;
}
@media (max-width: 768px) {
  .ui-skin-select { max-width: 110px; font-size: 10px; }
}