/**
 * ============================================================
 * CAR DATA HUB — Design System v4.0
 * Premium UI · Dashcode-grade · Clean & Bold
 * ============================================================
 * Tokens → Componentes → Dark Mode → Utilitários
 * Zero cores hardcoded no HTML.
 * ============================================================
 */

/* ============================================================
   1. TOKENS — LIGHT MODE (default)
   ============================================================ */
:root {
    /* Brand */
    --brand-primary:    #0EA5E9;
    --brand-primary-d:  #0284C7;
    --brand-primary-l:  #38BDF8;
    --brand-accent:     #84CC16;
    --brand-accent-d:   #65A30D;
    --brand-gradient:   linear-gradient(135deg, #0EA5E9 0%, #84CC16 100%);
    --brand-gradient-r: linear-gradient(135deg, #84CC16 0%, #0EA5E9 100%);

    /* Semantic — primary */
    --color-primary:        var(--brand-primary);
    --color-primary-dark:   var(--brand-primary-d);
    --color-primary-light:  var(--brand-primary-l);
    --color-primary-subtle: rgba(14, 165, 233, 0.08);

    /* Semantic — secondary */
    --color-secondary:        var(--brand-accent);
    --color-secondary-dark:   var(--brand-accent-d);
    --color-secondary-subtle: rgba(132, 204, 22, 0.08);

    /* Status */
    --color-success:        #16A34A;
    --color-success-bg:     #F0FDF4;
    --color-success-text:   #15803D;
    --color-warning:        #D97706;
    --color-warning-bg:     #FFFBEB;
    --color-warning-text:   #92400E;
    --color-danger:         #DC2626;
    --color-danger-bg:      #FEF2F2;
    --color-danger-text:    #991B1B;
    --color-info:           #0EA5E9;
    --color-info-bg:        #F0F9FF;
    --color-info-text:      #0369A1;

    /* Surfaces */
    --surface-page:     #F1F5F9;
    --surface-card:     #FFFFFF;
    --surface-raised:   #FFFFFF;
    --surface-sunken:   #F8FAFC;
    --surface-overlay:  rgba(15, 23, 42, 0.55);

    /* Text */
    --text-primary:     #0F172A;
    --text-secondary:   #475569;
    --text-muted:       #94A3B8;
    --text-placeholder: #CBD5E1;
    --text-inverse:     #FFFFFF;
    --text-link:        var(--color-primary);
    --text-link-hover:  var(--color-primary-dark);

    /* Borders */
    --border-color:         #E2E8F0;
    --border-color-strong:  #CBD5E1;
    --border-subtle:        #E2E8F0;
    --border-focus:         var(--brand-primary);

    /* Shadows — subtle, premium */
    --shadow-xs:  0 1px 2px 0 rgba(15, 23, 42, 0.04);
    --shadow-sm:  0 1px 3px 0 rgba(15, 23, 42, 0.07), 0 1px 2px -1px rgba(15, 23, 42, 0.05);
    --shadow-md:  0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg:  0 10px 20px -4px rgba(15, 23, 42, 0.10), 0 4px 8px -4px rgba(15, 23, 42, 0.06);
    --shadow-xl:  0 20px 40px -8px rgba(15, 23, 42, 0.14), 0 8px 16px -8px rgba(15, 23, 42, 0.08);
    --shadow-glow:0 0 0 3px var(--color-primary-subtle);

    /* Spacing — 4px grid */
    --space-0:  0;
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-7:  1.75rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Radius */
    --radius-xs:   0.25rem;
    --radius-sm:   0.375rem;
    --radius-md:   0.5rem;
    --radius-lg:   0.75rem;
    --radius-xl:   1rem;
    --radius-2xl:  1.25rem;
    --radius-3xl:  1.5rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    --text-2xs:  0.625rem;
    --text-xs:   0.75rem;
    --text-sm:   0.8125rem;
    --text-base: 0.9375rem;
    --text-md:   1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;
    --fw-light:   300;
    --fw-normal:  400;
    --fw-medium:  500;
    --fw-semibold:600;
    --fw-bold:    700;
    /* Aliases —  var(--font-*) usado nas views */
    --font-light:   300;
    --font-normal:  400;
    --font-medium:  500;
    --font-semibold:600;
    --font-bold:    700;
    --lh-tight:   1.25;
    --lh-snug:    1.375;
    --lh-normal:  1.5;
    --lh-relaxed: 1.625;

    /* Transitions */
    --ease-in:   cubic-bezier(0.4, 0, 1, 1);
    --ease-out:  cubic-bezier(0, 0, 0.2, 1);
    --ease-io:   cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast:  120ms;
    --duration-base:  200ms;
    --duration-slow:  300ms;
    --transition-fast: all var(--duration-fast) var(--ease-io);
    --transition-base: all var(--duration-base) var(--ease-io);
    --transition-slow: all var(--duration-slow) var(--ease-io);

    /* Z-index */
    --z-base:    0;
    --z-raised:  10;
    --z-dropdown:20;
    --z-sticky:  30;
    --z-overlay: 40;
    --z-sidebar: 50;
    --z-modal:   60;
    --z-toast:   70;

    /* Sidebar */
    --sidebar-width:        15rem;
    --sidebar-width-mini:   4rem;
    --sidebar-bg:           #0D1526;
    --sidebar-bg-active:    rgba(14, 165, 233, 0.14);
    --sidebar-bg-hover:     rgba(255, 255, 255, 0.055);
    --sidebar-text:         rgba(255, 255, 255, 0.62);
    --sidebar-text-active:  #FFFFFF;
    --sidebar-text-muted:   rgba(255, 255, 255, 0.35);
    --sidebar-border:       rgba(255, 255, 255, 0.07);
    --sidebar-accent:       var(--brand-primary);
    --sidebar-accent-glow:  rgba(14, 165, 233, 0.30);

    /* Topbar */
    --topbar-bg:     #FFFFFF;
    --topbar-border: var(--border-color);
    --topbar-height: 3.25rem;

    /* Legacy aliases */
    --cdh-blue:           var(--brand-primary);
    --cdh-green:          var(--brand-accent);
    --cdh-gradient:       var(--brand-gradient);
    --cdh-gradient-rev:   var(--brand-gradient-r);
    --codental-primary:   var(--color-primary);
    --codental-background:var(--surface-page);
    --codental-surface:   var(--surface-card);
}

/* ============================================================
   2. DARK MODE
   ============================================================ */
[data-theme="dark"] {
    /* Surfaces */
    --surface-page:    #0B0F19;
    --surface-card:    #111827;
    --surface-raised:  #1A2234;
    --surface-sunken:  #0D1220;
    --surface-overlay: rgba(0, 0, 0, 0.70);

    /* Text */
    --text-primary:     #F1F5F9;
    --text-secondary:   #8B97B0;
    --text-muted:       #4A5568;
    --text-placeholder: #374151;
    --text-inverse:     #0F172A;

    /* Borders */
    --border-color:        #1E2D40;
    --border-color-strong: #2D3E55;
    --border-subtle:       #1E2D40;

    /* Subtle backgrounds */
    --color-primary-subtle:   rgba(14, 165, 233, 0.12);
    --color-secondary-subtle: rgba(132, 204, 22, 0.10);
    --color-success-bg:   rgba(22, 163, 74,  0.12);
    --color-success-text: #4ADE80;
    --color-warning-bg:   rgba(217, 119, 6,  0.12);
    --color-warning-text: #FCD34D;
    --color-danger-bg:    rgba(220, 38,  38, 0.12);
    --color-danger-text:  #F87171;
    --color-info-bg:      rgba(14, 165, 233, 0.12);
    --color-info-text:    #38BDF8;

    /* Shadows — deeper in dark */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.20);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.30), 0 1px 2px -1px rgba(0, 0, 0, 0.20);
    --shadow-md: 0 4px 8px -1px rgba(0, 0, 0, 0.40), 0 2px 4px -2px rgba(0, 0, 0, 0.30);
    --shadow-lg: 0 10px 24px -4px rgba(0, 0, 0, 0.50), 0 4px 8px -4px rgba(0, 0, 0, 0.30);
    --shadow-xl: 0 20px 48px -8px rgba(0, 0, 0, 0.60), 0 8px 16px -8px rgba(0, 0, 0, 0.40);

    /* Topbar / Sidebar */
    --topbar-bg:     #111827;
    --topbar-border: #1E2D40;
    --sidebar-bg:    #090E1A;
    --sidebar-border:rgba(255, 255, 255, 0.05);
}

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--lh-normal);
    color: var(--text-primary);
    background-color: var(--surface-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-io);
}
a:hover { color: var(--text-link-hover); }

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

hr {
    border: none;
    border-top: 1px solid var(--border-color);
}

/* ============================================================
   4. LAYOUT — Shell (Sidebar + Main)
   ============================================================ */
.cdh-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--surface-page);
}

/* ── Sidebar ── */
.cdh-sidebar {
    position: relative;
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    overflow-x: hidden;   /* só esconde overflow horizontal — ícones não são cortados */
    overflow-y: hidden;   /* scroll fica no .cdh-sidebar__scroll */
    transition: width var(--duration-slow) var(--ease-io);
    will-change: width;
    border-right: 1px solid var(--sidebar-border);
    text-align: left;
}

.cdh-sidebar.is-mini {
    width: var(--sidebar-width-mini);
}

.cdh-sidebar__scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.12) transparent;
}
.cdh-sidebar__scroll::-webkit-scrollbar { width: 3px; }
.cdh-sidebar__scroll::-webkit-scrollbar-track { background: transparent; }
.cdh-sidebar__scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: var(--radius-full); }

/* ── Main ── */
.cdh-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ── Topbar ── */
.cdh-topbar {
    height: var(--topbar-height);
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
    box-shadow: var(--shadow-xs);
    display: flex;
    align-items: center;
    padding: 0 var(--space-5);
    gap: var(--space-3);
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

/* ── Content ── */
.cdh-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-6);
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}
/* Content ocupa toda a largura disponível — sem cap fixo */
.cdh-content > * {
    width: 100%;
    box-sizing: border-box;
}
/* Pages que usam max-w-* centram-se a si próprias — sem interferência */
.cdh-content > .max-w-7xl,
.cdh-content > .max-w-5xl,
.cdh-content > .max-w-4xl,
.cdh-content > .max-w-3xl,
.cdh-content > .max-w-2xl {
    max-width: revert;
    margin-left: auto;
    margin-right: auto;
}
.cdh-content::-webkit-scrollbar { width: 5px; }
.cdh-content::-webkit-scrollbar-track { background: transparent; }
.cdh-content::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: var(--radius-full); }

/* ── Mobile Overlay ── */
.cdh-overlay {
    position: fixed;
    inset: 0;
    background: var(--surface-overlay);
    z-index: var(--z-overlay);
    display: none;
    backdrop-filter: blur(2px);
}
.cdh-overlay.is-active { display: block; }

@media (min-width: 1024px) {
    .cdh-overlay { display: none !important; }
}

/* ============================================================
   5. SIDEBAR NAV
   ============================================================ */

/* Logo area */
.sidebar-brand {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 var(--space-4);
    border-bottom: 1px solid var(--sidebar-border);
    flex-shrink: 0;
    gap: var(--space-3);
    /* overflow: hidden removido — logo/ícone não devem ser clipados */
}

.sidebar-brand__logo {
    width: 1.875rem;
    height: 1.875rem;
    border-radius: var(--radius-md);
    background: var(--brand-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--text-sm);
    flex-shrink: 0;
    box-shadow: 0 2px 8px var(--sidebar-accent-glow);
}

.sidebar-brand__name {
    font-size: var(--text-sm);
    font-weight: var(--fw-bold);
    color: #fff;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    opacity: 1;
    transition: opacity var(--duration-base) var(--ease-io);
}

/* Section label */
.nav-section {
    padding: var(--space-4) var(--space-4) var(--space-2);
    font-size: var(--text-2xs);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--sidebar-text-muted);
    white-space: nowrap;
    overflow: hidden;
    opacity: 1;
    transition: opacity var(--duration-base) var(--ease-io);
}

/* Nav item */
.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    margin: 1px var(--space-2);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    color: var(--sidebar-text);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-io), color var(--duration-fast) var(--ease-io);
    text-decoration: none;
    white-space: nowrap;
    /* overflow removido — label usa width:0 para recolher */
    position: relative;
}

.nav-item:hover {
    background: var(--sidebar-bg-hover);
    color: #fff;
}

.nav-item.is-active {
    background: var(--sidebar-bg-active);
    color: var(--sidebar-text-active);
}
/* Active left indicator */
.nav-item.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 1.25rem;
    background: var(--sidebar-accent);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    box-shadow: 1px 0 8px var(--sidebar-accent-glow);
}

.nav-item__icon {
    width: 1.125rem;
    text-align: center;
    font-size: var(--text-sm);
    flex-shrink: 0;
    color: inherit;
    opacity: 0.8;
}
.nav-item.is-active .nav-item__icon { opacity: 1; color: var(--sidebar-accent); }

.nav-item__label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: opacity var(--duration-base) var(--ease-io), width var(--duration-slow) var(--ease-io);
}

/* Sub-item */
.nav-subitem {
    padding-left: calc(var(--space-4) + 1.125rem + var(--space-3));
    padding-top: calc(var(--space-2) - 2px);
    padding-bottom: calc(var(--space-2) - 2px);
    font-size: var(--text-xs);
    color: var(--sidebar-text-muted);
}
.nav-subitem:hover { color: var(--sidebar-text); }
.nav-subitem.is-active {
    color: var(--sidebar-accent);
    background: transparent;
}
.nav-subitem.is-active::before { display: none; }

/* Collapsible nav group */
.nav-group {}
.nav-group__toggle {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: calc(100% - var(--space-2) * 2);
    padding: var(--space-2) var(--space-4);
    margin: 1px var(--space-2);
    text-align: left;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--sidebar-text-muted);
    font-size: var(--text-2xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: color var(--duration-fast) var(--ease-io), background var(--duration-fast) var(--ease-io);
}
.nav-group__toggle:hover {
    color: var(--sidebar-text);
    background: var(--sidebar-bg-hover);
}
.nav-group__toggle .nav-group__arrow {
    margin-left: auto;
    font-size: 0.5rem;
    transition: transform var(--duration-fast) var(--ease-io);
    opacity: 0.5;
}
.nav-group.is-open .nav-group__arrow {
    transform: rotate(90deg);
}
.nav-group__items {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-base) var(--ease-io);
}
.nav-group.is-open .nav-group__items {
    max-height: 60rem;
}
/* Group with active child always shows indicator */
.nav-group.has-active .nav-group__toggle {
    color: var(--sidebar-text);
}

/* Mini mode: hide group toggles, show only icons */
.cdh-sidebar.is-mini .nav-group__toggle { display: none; }
.cdh-sidebar.is-mini .nav-group__items {
    max-height: none;
    overflow: visible;
}

/* Divider */
.nav-divider {
    height: 1px;
    background: var(--sidebar-border);
    margin: var(--space-3) var(--space-4);
}

/* ── Mini mode ── */
.cdh-sidebar.is-mini .sidebar-brand__name,
.cdh-sidebar.is-mini .nav-item__label {
    opacity: 0;
    width: 0;
    overflow: hidden;
    flex-shrink: 1;
    transition: opacity var(--duration-base) var(--ease-io), width var(--duration-slow) var(--ease-io);
}

.cdh-sidebar.is-mini .nav-section {
    opacity: 0;
    height: 0;
    overflow: hidden;
    padding: 0;
    margin: 0;
}

/* Brand: centraliza o logo no mini */
.cdh-sidebar.is-mini .sidebar-brand {
    justify-content: center;
    padding: 0;
    gap: 0;
}

/* Nav items: centraliza o ícone, sem width fixo */
.cdh-sidebar.is-mini .nav-item {
    justify-content: center;
    padding: var(--space-3) 0;
    margin: 1px var(--space-1);
    gap: 0;
    width: auto;
}

/* Ícone sempre visível e tamanho fixo */
.cdh-sidebar.is-mini .nav-item__icon {
    width: 1.25rem;
    font-size: var(--text-base);
    flex-shrink: 0;
    opacity: 1;
    text-align: center;
}

/* Sub-itens desaparecem */
.cdh-sidebar.is-mini .nav-subitem { display: none; }

/* Nav divider mais discreto */
.cdh-sidebar.is-mini .nav-divider { margin: var(--space-2) var(--space-2); }

/* Footer: centraliza tudo no mini */
.cdh-sidebar.is-mini .sidebar-footer {
    padding: var(--space-2) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

/* Collapse btn row: centralizado */
.cdh-sidebar.is-mini .sidebar-footer > div:first-child {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-bottom: 0;
}

/* Avatar centralizado */
.cdh-sidebar.is-mini .sidebar-user {
    justify-content: center;
    padding: var(--space-1) 0;
    width: 100%;
}
.cdh-sidebar.is-mini .sidebar-user__info,
.cdh-sidebar.is-mini .sidebar-user__more {
    display: none;
}

/* Collapse icon rotation is handled via JS (inline style) */

/* Collapse button */
.sidebar-collapse-btn {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--radius-full);
    background: var(--sidebar-border);
    border: 1px solid rgba(255,255,255,.12);
    color: var(--sidebar-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.625rem;
    flex-shrink: 0;
}
.sidebar-collapse-btn:hover { background: var(--sidebar-bg-hover); color: #fff; }

/* ── Sidebar footer ── */
.sidebar-footer {
    border-top: 1px solid var(--sidebar-border);
    padding: var(--space-3);
    flex-shrink: 0;
    position: relative; /* for dropdown absolute positioning */
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-2);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-io);
    /* overflow: hidden removido — avatar clipado em mini mode */
}
.sidebar-user:hover { background: var(--sidebar-bg-hover); }

.sidebar-user__avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-md);
    background: var(--brand-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    flex-shrink: 0;
    overflow: hidden;
}
.sidebar-user__avatar img { width: 100%; height: 100%; object-fit: cover; }

.sidebar-user__info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    transition: opacity var(--duration-base) var(--ease-io);
}
.sidebar-user__name {
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-user__role {
    font-size: var(--text-2xs);
    color: var(--sidebar-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 1px;
}
/* ============================================================
   6. TOPBAR ELEMENTS
   ============================================================ */
.topbar-title {
    font-size: var(--text-md);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    letter-spacing: -0.01em;
}
.topbar-title__icon {
    color: var(--color-primary);
    font-size: var(--text-base);
}

.topbar-search {
    position: relative;
}
.topbar-search__input {
    width: 14rem;
    padding: 0.4375rem var(--space-3) 0.4375rem 2.125rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--surface-sunken);
    color: var(--text-primary);
    font-size: var(--text-xs);
    font-family: var(--font-sans);
    transition: var(--transition-base);
}
.topbar-search__input::placeholder { color: var(--text-muted); }
.topbar-search__input:focus {
    outline: none;
    border-color: var(--border-focus);
    background: var(--surface-card);
    width: 18rem;
    box-shadow: var(--shadow-glow);
}
.topbar-search__icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--text-xs);
    pointer-events: none;
}

.topbar-btn {
    width: 2.125rem;
    height: 2.125rem;
    border-radius: var(--radius-lg);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--text-sm);
    position: relative;
}
.topbar-btn:hover {
    background: var(--surface-page);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* ============================================================
   7. CARD
   ============================================================ */
.card {
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: var(--space-5);
    transition: box-shadow var(--duration-base) var(--ease-io);
}

.card--flat   { box-shadow: none; }
.card--raised { box-shadow: var(--shadow-md); }
.card--hover:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    transition: box-shadow var(--duration-base) var(--ease-io), transform var(--duration-base) var(--ease-io);
}

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-color);
}

.card__title {
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    letter-spacing: -0.01em;
}

.card__label {
    font-size: var(--text-2xs);
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: var(--space-2);
}

/* ============================================================
   8. STAT CARD
   ============================================================ */
.stat-card {
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: var(--space-5);
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--duration-base) var(--ease-io), transform var(--duration-base) var(--ease-io);
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.stat-card__icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}
.stat-card__icon--blue    { background: var(--color-primary-subtle); color: var(--color-primary); }
.stat-card__icon--green   { background: var(--color-secondary-subtle); color: var(--color-secondary-dark); }
.stat-card__icon--success { background: var(--color-success-bg); color: var(--color-success); }
.stat-card__icon--warning { background: var(--color-warning-bg); color: var(--color-warning); }
.stat-card__icon--danger  { background: var(--color-danger-bg); color: var(--color-danger); }

.stat-card__value {
    font-size: var(--text-2xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    line-height: var(--lh-tight);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-1);
}

.stat-card__label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-weight: var(--fw-medium);
}

.stat-card__trend {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    margin-top: var(--space-2);
}
.stat-card__trend--up   { color: var(--color-success); }
.stat-card__trend--down { color: var(--color-danger); }

/* Decorative corner glow */
.stat-card::after {
    content: '';
    position: absolute;
    top: -1rem;
    right: -1rem;
    width: 5rem;
    height: 5rem;
    border-radius: var(--radius-full);
    background: var(--color-primary-subtle);
    pointer-events: none;
}

/* ============================================================
   9. BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    font-family: var(--font-sans);
    line-height: 1;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: -0.005em;
    position: relative;
    outline: none;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px var(--color-primary-subtle), 0 0 0 1px var(--color-primary);
}

.btn:disabled, .btn[disabled] {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary — gradient */
.btn-primary {
    background: var(--brand-gradient);
    color: #fff;
    font-weight: var(--fw-semibold);
    box-shadow: 0 1px 4px rgba(14, 165, 233, 0.25);
}
.btn-primary:hover {
    background: var(--brand-gradient-r);
    color: #fff;
    box-shadow: 0 3px 10px rgba(14, 165, 233, 0.35);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); box-shadow: none; }

/* Secondary */
.btn-secondary {
    background: var(--surface-card);
    color: var(--text-secondary);
    border-color: var(--border-color);
    font-weight: var(--fw-medium);
}
.btn-secondary:hover {
    background: var(--surface-page);
    border-color: var(--border-color-strong);
    color: var(--text-primary);
}

/* Outline */
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary-subtle);
}

/* Danger */
.btn-danger {
    background: var(--color-danger-bg);
    color: var(--color-danger-text);
    border-color: transparent;
}
.btn-danger:hover {
    background: var(--color-danger);
    color: #fff;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.30);
}

/* Ghost */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}
.btn-ghost:hover {
    background: var(--surface-page);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* Sizes */
.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: var(--text-xs);
    border-radius: var(--radius-md);
    gap: var(--space-1);
}
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--text-xs);
    border-radius: var(--radius-md);
}
.btn-lg {
    padding: 0.6875rem 1.375rem;
    font-size: var(--text-base);
    border-radius: var(--radius-xl);
}
.btn-icon {
    padding: 0.5rem;
    aspect-ratio: 1;
    gap: 0;
}
.btn-icon.btn-sm { padding: 0.375rem; }
.btn-icon.btn-lg { padding: 0.75rem; }

/* ============================================================
   10. FORMS / INPUTS
   ============================================================ */
.form-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    letter-spacing: 0.01em;
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-hint {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
    line-height: var(--lh-snug);
}

.form-error {
    font-size: var(--text-xs);
    color: var(--color-danger-text);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.form-group { margin-bottom: var(--space-5); }

.form-row {
    display: grid;
    gap: var(--space-4);
}
.form-row-2 { grid-template-columns: repeat(2, 1fr); }
.form-row-3 { grid-template-columns: repeat(3, 1fr); }
.form-row-4 { grid-template-columns: repeat(4, 1fr); }

/* Input */
.input {
    display: block;
    width: 100%;
    padding: 0.5625rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--surface-card);
    color: var(--text-primary);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    line-height: var(--lh-normal);
    transition: border-color var(--duration-fast) var(--ease-io), box-shadow var(--duration-fast) var(--ease-io);
    appearance: none;
    -webkit-appearance: none;
}
.input::placeholder { color: var(--text-placeholder); }
.input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    background: var(--surface-card);
}
.input:disabled, .input[readonly] {
    background: var(--surface-sunken);
    color: var(--text-muted);
    cursor: not-allowed;
}
.input[readonly]:not([style*="background"]) {
    cursor: default;
}

.input-error  { border-color: var(--color-danger) !important; box-shadow: 0 0 0 3px rgba(220,38,38,.08) !important; }
.input-success{ border-color: var(--color-success) !important; box-shadow: 0 0 0 3px rgba(22,163,74,.08) !important; }

/* Input group */
.input-group {
    display: flex;
    gap: var(--space-2);
    align-items: stretch;
}
.input-group .input { flex: 1; min-width: 0; }

/* Textarea */
textarea.input { resize: vertical; min-height: 5rem; }

/* Select arrow */
select.input {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A3B8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-8);
    cursor: pointer;
}

/* ============================================================
   11. BADGES
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0.1875rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    white-space: nowrap;
    letter-spacing: 0.01em;
    line-height: 1.4;
}

.badge-primary   { background: var(--color-primary-subtle);   color: var(--color-primary); }
.badge-success   { background: var(--color-success-bg);       color: var(--color-success-text); }
.badge-warning   { background: var(--color-warning-bg);       color: var(--color-warning-text); }
.badge-danger    { background: var(--color-danger-bg);        color: var(--color-danger-text); }
.badge-info      { background: var(--color-info-bg);          color: var(--color-info-text); }
.badge-gray,
.badge-secondary { background: var(--surface-sunken);         color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-green     { background: var(--color-secondary-subtle); color: var(--color-secondary-dark); }

/* Status dot */
.badge::before {
    display: none;
}
.badge--dot::before {
    content: '';
    display: block;
    width: 0.375rem;
    height: 0.375rem;
    border-radius: var(--radius-full);
    background: currentColor;
    flex-shrink: 0;
}

/* ============================================================
   12. ALERTS
   ============================================================ */
.alert {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    line-height: var(--lh-snug);
    margin-bottom: var(--space-4);
    border: 1px solid transparent;
}

.alert > i { margin-top: 1px; flex-shrink: 0; }

.alert-info    { background: var(--color-info-bg);    color: var(--color-info-text);    border-color: rgba(14,165,233,.20); }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); border-color: rgba(22,163,74,.20); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning-text); border-color: rgba(217,119,6,.20); }
.alert-danger  { background: var(--color-danger-bg);  color: var(--color-danger-text);  border-color: rgba(220,38,38,.20); }

/* ============================================================
   13. TABLE
   ============================================================ */
.table-wrap {
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.table-wrap--scrollable { overflow-x: auto; }

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    min-width: 36rem;
}

.table thead {
    background: var(--surface-sunken);
    border-bottom: 1px solid var(--border-color);
}

.table th {
    padding: 0.625rem 1rem;
    text-align: left;
    font-size: var(--text-2xs);
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    white-space: nowrap;
}
.table th.text-right, .table td.text-right { text-align: right; }
.table th.text-center, .table td.text-center { text-align: center; }

.table td {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.table tbody tr { transition: background var(--duration-fast) var(--ease-io); }
.table tbody tr:hover { background: var(--surface-sunken); }

.table-actions {
    display: flex;
    gap: var(--space-1);
    justify-content: flex-end;
    align-items: center;
}

/* ============================================================
   14. PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--border-color);
    gap: var(--space-4);
    flex-wrap: wrap;
}

.pagination__info {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.pagination__pages {
    display: flex;
    gap: var(--space-1);
}

.pagination__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    padding: 0 var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    transition: var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}
.pagination__btn:hover {
    border-color: var(--border-color);
    background: var(--surface-page);
    color: var(--text-primary);
}
.pagination__btn.is-active {
    background: var(--color-primary);
    color: #fff;
    font-weight: var(--fw-semibold);
}
.pagination__btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================================
   15. EMPTY STATE
   ============================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-4);
}
.empty-state__icon {
    font-size: 2.5rem;
    color: var(--border-color-strong);
    margin-bottom: var(--space-4);
    display: block;
}
.empty-state__title {
    font-size: var(--text-lg);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}
.empty-state__desc {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-6);
    max-width: 26rem;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--lh-relaxed);
}

/* ============================================================
   16. PAGE HEADER
   ============================================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-6);
    gap: var(--space-4);
    flex-wrap: wrap;
}

.page-header__title {
    font-size: var(--text-xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin: 0;
    line-height: var(--lh-tight);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.page-header__subtitle {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
    font-weight: var(--fw-medium);
}

.page-header__icon {
    color: var(--color-primary);
}

.page-header__actions {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    flex-shrink: 0;
}

/* ============================================================
   17. FILTER BAR
   ============================================================ */
.filter-bar {
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: var(--space-4);
    margin-bottom: var(--space-5);
}

.filter-bar__grid {
    display: grid;
    gap: var(--space-3);
    grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
}

/* ============================================================
   18. TABS
   ============================================================ */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    gap: 0;
    margin-bottom: var(--space-6);
}

.tab {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}
.tab:hover { color: var(--text-primary); border-bottom-color: var(--border-color-strong); }
.tab.is-active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: var(--fw-semibold);
}

/* ============================================================
   19. MODAL
   ============================================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--surface-overlay);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.modal {
    background: var(--surface-card);
    border-radius: var(--radius-3xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 30rem;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modal-in var(--duration-base) var(--ease-out);
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(.96) translateY(8px); }
    to   { opacity: 1; transform: scale(1)  translateY(0); }
}

.modal--md { max-width: 38rem; }
.modal--lg { max-width: 52rem; }
.modal--xl { max-width: 68rem; }

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.modal__title {
    font-size: var(--text-lg);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    letter-spacing: -0.01em;
}
.modal__close {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--text-sm);
}
.modal__close:hover { background: var(--surface-page); color: var(--text-primary); }

.modal__body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}
.modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

/* ============================================================
   20. MISC COMPONENTS
   ============================================================ */

/* Divider */
.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--space-5) 0;
}

/* Section title */
.section-title {
    font-size: var(--text-2xs);
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-3);
}

/* Dropdown */
.dropdown {
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-1);
    min-width: 12rem;
    animation: dropdown-in var(--duration-fast) var(--ease-out);
}
@keyframes dropdown-in {
    from { opacity: 0; transform: translateY(-6px) scale(.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.dropdown__item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-io), color var(--duration-fast) var(--ease-io);
    text-decoration: none;
}
.dropdown__item:hover { background: var(--surface-sunken); color: var(--text-primary); }
.dropdown__item--danger { color: var(--color-danger-text); }
.dropdown__item--danger:hover { background: var(--color-danger-bg); color: var(--color-danger-text); }

.dropdown__divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-1) 0;
}

/* Tooltip */
.tooltip {
    position: relative;
}
.tooltip::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--text-inverse);
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-fast) var(--ease-io);
    z-index: var(--z-toast);
}
.tooltip:hover::after { opacity: 1; }

/* Avatar */
.avatar {
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--fw-bold);
    color: #fff;
    background: var(--brand-gradient);
    overflow: hidden;
    flex-shrink: 0;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 1.75rem; height: 1.75rem; font-size: var(--text-xs); }
.avatar-md { width: 2.25rem; height: 2.25rem; font-size: var(--text-sm); border-radius: var(--radius-lg); }
.avatar-lg { width: 3rem;    height: 3rem;    font-size: var(--text-md); border-radius: var(--radius-xl); }

/* Notification badge */
.notif-badge {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 1rem;
    height: 1rem;
    padding: 0 3px;
    background: var(--color-danger);
    color: #fff;
    font-size: 0.5625rem;
    font-weight: var(--fw-bold);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid var(--topbar-bg);
    line-height: 1;
}

/* ============================================================
   21. UTILITIES
   ============================================================ */

/* Display */
.flex         { display: flex !important; }
.inline-flex  { display: inline-flex !important; }
.grid         { display: grid !important; }
.block        { display: block !important; }
.inline-block { display: inline-block !important; }
.hidden       { display: none !important; }
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Flex */
.items-center   { align-items: center !important; }
.items-start    { align-items: flex-start !important; }
.items-end      { align-items: flex-end !important; }
.justify-center { justify-content: center !important; }
.justify-end    { justify-content: flex-end !important; }
.justify-between{ justify-content: space-between !important; }
.flex-1         { flex: 1 1 0% !important; }
.flex-wrap      { flex-wrap: wrap !important; }
.flex-col       { flex-direction: column !important; }
.flex-shrink-0  { flex-shrink: 0 !important; }
.gap-1  { gap: var(--space-1) !important; }
.gap-2  { gap: var(--space-2) !important; }
.gap-3  { gap: var(--space-3) !important; }
.gap-4  { gap: var(--space-4) !important; }
.gap-5  { gap: var(--space-5) !important; }

/* Spacing */
.m-0  { margin: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mr-1 { margin-right: var(--space-1) !important; }
.mr-2 { margin-right: var(--space-2) !important; }
.mr-3 { margin-right: var(--space-3) !important; }
.ml-2 { margin-left: var(--space-2) !important; }
.p-0  { padding: 0 !important; }
.p-4  { padding: var(--space-4) !important; }
.p-5  { padding: var(--space-5) !important; }
.p-6  { padding: var(--space-6) !important; }

.space-y-4 > * + * { margin-top: var(--space-4); }
.space-y-5 > * + * { margin-top: var(--space-5); }
.space-y-6 > * + * { margin-top: var(--space-6); }

/* Sizing */
.w-full  { width: 100% !important; }
.w-4     { width: 1rem !important; }
.w-5     { width: 1.25rem !important; }
.min-w-0 { min-width: 0 !important; }
.max-w-2xl { max-width: 42rem;  margin-left: auto; margin-right: auto; }
.max-w-3xl { max-width: 48rem;  margin-left: auto; margin-right: auto; }
.max-w-4xl { max-width: 56rem;  margin-left: auto; margin-right: auto; }
.max-w-5xl { max-width: 64rem;  margin-left: auto; margin-right: auto; }
.max-w-6xl { max-width: 72rem;  margin-left: auto; margin-right: auto; }
.max-w-7xl { max-width: 80rem;  margin-left: auto; margin-right: auto; }

/* Typography */
.font-mono    { font-family: var(--font-mono) !important; }
.font-medium  { font-weight: var(--fw-medium) !important; }
.font-semibold{ font-weight: var(--fw-semibold) !important; }
.font-bold    { font-weight: var(--fw-bold) !important; }
.text-2xs     { font-size: var(--text-2xs) !important; }
.text-xs      { font-size: var(--text-xs) !important; }
.text-sm      { font-size: var(--text-sm) !important; }
.text-base    { font-size: var(--text-base) !important; }
.text-md      { font-size: var(--text-md) !important; }
.text-lg      { font-size: var(--text-lg) !important; }
.text-xl      { font-size: var(--text-xl) !important; }
.text-2xl     { font-size: var(--text-2xl) !important; }
.text-right   { text-align: right !important; }
.text-center  { text-align: center !important; }
.text-left    { text-align: left !important; }
.uppercase    { text-transform: uppercase !important; }
.truncate     { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.leading-tight{ line-height: var(--lh-tight) !important; }

/* Colors */
.text-primary   { color: var(--color-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-muted) !important; }
.text-success   { color: var(--color-success) !important; }
.text-warning   { color: var(--color-warning) !important; }
.text-danger    { color: var(--color-danger) !important; }
.text-inverse   { color: var(--text-inverse) !important; }
.text-gradient  {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-primary  { background: var(--color-primary) !important; color: #fff !important; }
.bg-gradient { background: var(--brand-gradient) !important; }
.bg-surface  { background: var(--surface-card) !important; }
.bg-page     { background: var(--surface-page) !important; }

/* Misc */
.rounded     { border-radius: var(--radius-md) !important; }
.rounded-lg  { border-radius: var(--radius-lg) !important; }
.rounded-xl  { border-radius: var(--radius-xl) !important; }
.rounded-full{ border-radius: var(--radius-full) !important; }
.relative    { position: relative !important; }
.cursor-pointer { cursor: pointer !important; }
.overflow-hidden{ overflow: hidden !important; }
.shadow-sm   { box-shadow: var(--shadow-sm) !important; }
.shadow-md   { box-shadow: var(--shadow-md) !important; }

/* Hover helpers */
.hover\:bg-page:hover    { background: var(--surface-page) !important; }
.hover\:bg-sunken:hover  { background: var(--surface-sunken) !important; }
.hover\:text-primary:hover{ color: var(--color-primary) !important; }
.transition-colors { transition: color var(--duration-fast) var(--ease-io), background var(--duration-fast) var(--ease-io); }

/* ============================================================
   22. SETTINGS NAV
   ============================================================ */
.settings-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1-5, 0.375rem);
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-6);
}

.settings-nav__item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    text-decoration: none;
    transition: background var(--duration-fast) var(--ease-io), color var(--duration-fast) var(--ease-io);
    white-space: nowrap;
}

.settings-nav__item:hover {
    background: var(--surface-sunken);
    color: var(--text-primary);
}

.settings-nav__item.is-active {
    background: var(--color-primary-subtle, rgba(14,165,233,.12));
    color: var(--color-primary);
    font-weight: var(--fw-semibold);
}

.settings-nav__item i {
    font-size: var(--text-xs);
    opacity: 0.8;
}

/* ============================================================
   23. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .cdh-sidebar {
        position: fixed;
        top: 0; bottom: 0; left: 0;
        z-index: var(--z-sidebar);
        transform: translateX(-100%);
        transition: transform var(--duration-slow) var(--ease-io);
    }
    .cdh-sidebar.is-open { transform: translateX(0); }
    .cdh-sidebar.is-mini { width: var(--sidebar-width); transform: translateX(-100%); }
    .cdh-sidebar.is-mini.is-open { transform: translateX(0); }
}

@media (max-width: 768px) {
    /* Layout */
    .cdh-content { padding: var(--space-4); }

    /* Page header */
    .page-header { flex-direction: column; align-items: stretch; gap: var(--space-3); }
    .page-header__actions { justify-content: flex-start; flex-wrap: wrap; width: 100%; }
    .page-header__actions .btn { flex: 1 1 auto; justify-content: center; min-width: 0; }

    /* Forms */
    .form-row-2, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }

    /* Filter bar */
    .filter-bar__grid { grid-template-columns: 1fr 1fr; }

    /* Tables */
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .table th, .table td { padding: 0.5rem 0.75rem; font-size: var(--text-xs); }

    /* Pagination */
    .pagination {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
        text-align: center;
        padding: var(--space-3) var(--space-4);
    }

    /* Modal */
    .modal { border-radius: var(--radius-2xl); }
    .modal--lg, .modal--xl { max-width: 100%; }
    .modal__body { padding: var(--space-4); }
    .modal__footer { padding: var(--space-3) var(--space-4); gap: var(--space-2); }
    .modal__footer .btn { flex: 1; justify-content: center; }

    /* Topbar search */
    .topbar-search__input { width: 10rem; }
    .topbar-search__input:focus { width: 12rem; }

    /* Tabs: horizontal scroll on small screens */
    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .tabs::-webkit-scrollbar { display: none; }
    .tab { flex-shrink: 0; }

    /* Stat cards */
    .stat-card { padding: var(--space-4); }
    .stat-card__value { font-size: var(--text-xl); }

    /* Card padding */
    .card { padding: var(--space-4); }

    /* Alert */
    .alert { font-size: var(--text-xs); padding: var(--space-3); }

    /* Topbar title */
    .topbar-title { font-size: var(--text-sm); }
}

@media (max-width: 480px) {
    /* Content */
    .cdh-content { padding: var(--space-3); }

    /* Filter bar — single column */
    .filter-bar__grid { grid-template-columns: 1fr; }
    .filter-bar { padding: var(--space-3); }

    /* Page header */
    .page-header__title { font-size: var(--text-lg); }
    .page-header__actions .btn { width: 100%; }

    /* Topbar: hide title text, keep icon */
    .topbar-title span { display: none; }
    .topbar-title__icon { margin-right: 0; }

    /* Topbar padding */
    .cdh-topbar { padding: 0 var(--space-3); gap: var(--space-2); }

    /* Modal — full screen on very small screens */
    .modal-backdrop { padding: var(--space-2); align-items: flex-end; }
    .modal {
        border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
        max-height: 92vh;
    }

    /* Tables: reduce font further */
    .table th, .table td { padding: 0.375rem 0.5rem; font-size: var(--text-2xs); }

    /* Buttons: full width in action areas */
    .page-header__actions { flex-direction: column; }
    .page-header__actions .btn { width: 100%; }

    /* Stat cards */
    .stat-card__value { font-size: var(--text-lg); }
    .stat-card__icon { width: 2.25rem; height: 2.25rem; font-size: var(--text-base); }

    /* Settings nav: make items scrollable horizontally */
    .settings-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: var(--space-2);
        gap: var(--space-1);
    }
    .settings-nav::-webkit-scrollbar { display: none; }
    .settings-nav__item { flex-shrink: 0; font-size: var(--text-xs); padding: var(--space-2) var(--space-2); }

    /* Pagination: compact */
    .pagination__btn { min-width: 1.75rem; height: 1.75rem; }
    .pagination__info { font-size: var(--text-2xs); }

    /* Card */
    .card { padding: var(--space-3); border-radius: var(--radius-xl); }
    .card__header { padding-bottom: var(--space-3); margin-bottom: var(--space-3); }

    /* Empty state */
    .empty-state { padding: var(--space-10) var(--space-3); }
    .empty-state__title { font-size: var(--text-base); }

    /* Alert */
    .alert { flex-direction: column; gap: var(--space-2); }
    .alert > i { align-self: flex-start; }
}

/* ============================================================
   23. SCROLLBAR GLOBAL
   ============================================================ */
.overflow-y-auto {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}
.overflow-y-auto::-webkit-scrollbar { width: 5px; }
.overflow-y-auto::-webkit-scrollbar-track { background: transparent; }
.overflow-y-auto::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: var(--radius-full); }
.overflow-y-auto::-webkit-scrollbar-thumb:hover { background: var(--border-color-strong); }

/* ============================================================
   24. DASHBOARD GRID + STAT CARDS
   ============================================================ */

/* Dashboard grid layouts */
.dash-grid {
    display: grid;
    gap: var(--space-5);
}
.dash-grid--2 { grid-template-columns: repeat(2, 1fr); }
.dash-grid--3 { grid-template-columns: repeat(3, 1fr); }
.dash-grid--4 { grid-template-columns: repeat(4, 1fr); }
.dash-grid--5 { grid-template-columns: repeat(5, 1fr); }
.dash-grid--6 { grid-template-columns: repeat(6, 1fr); }

/* Stat card */
.card--stat {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: var(--space-5);
    position: relative;
    overflow: hidden;
}
/* Versão compacta: grid 6 colunas */
.dash-grid--6 .card--stat {
    padding: var(--space-4);
}
.dash-grid--6 .card--stat__value {
    font-size: var(--text-xl);
}
.dash-grid--6 .card--stat__icon {
    width: 38px;
    height: 38px;
    margin-bottom: var(--space-2);
}
.card--stat__icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: var(--space-3);
    flex-shrink: 0;
}
.card--stat__body { flex: 1; }
.card--stat__label {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}
.card--stat__value {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--space-1);
}
.card--stat__sub {
    font-size: var(--text-xs);
    color: var(--text-muted);
}
.card--stat__link {
    font-size: var(--text-xs);
    color: var(--color-primary);
    text-decoration: none;
    margin-top: var(--space-3);
    display: inline-block;
}
.card--stat__link:hover { text-decoration: underline; }

/* Responsive dashboard grid */
@media (max-width: 1400px) {
    .dash-grid--6 { grid-template-columns: repeat(3, 1fr); }
    .dash-grid--5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1200px) {
    .dash-grid--6 { grid-template-columns: repeat(3, 1fr); }
    .dash-grid--5 { grid-template-columns: repeat(3, 1fr); }
    .dash-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .dash-grid--6 { grid-template-columns: repeat(2, 1fr); }
    .dash-grid--5 { grid-template-columns: repeat(2, 1fr); }
    .dash-grid--4 { grid-template-columns: repeat(2, 1fr); }
    .dash-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .dash-grid--2,
    .dash-grid--3,
    .dash-grid--4,
    .dash-grid--5,
    .dash-grid--6 { grid-template-columns: 1fr; }
}

/* Utility spacing helpers used in dashboard */
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* ============================================================
   25. SETTINGS LAYOUT
   ============================================================ */

/* Settings page: sidebar nav + content side-by-side */
.settings-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-6);
    align-items: start;
}

/* Vertical sidebar nav for settings */
.settings-sidebar {
    position: sticky;
    top: calc(var(--topbar-height) + var(--space-4));
}

.settings-sidebar .settings-nav {
    flex-direction: column;
    gap: 2px;
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    padding: var(--space-2);
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--border-subtle);
}

.settings-sidebar .settings-nav__item {
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    width: 100%;
    justify-content: flex-start;
    gap: var(--space-3);
}

.settings-sidebar .settings-nav__item i {
    width: 16px;
    text-align: center;
    font-size: var(--text-sm);
    opacity: 1;
}

/* Form section card inside settings */
.settings-section {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-subtle);
    margin-bottom: var(--space-5);
    overflow: hidden;
}

.settings-section__header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.settings-section__icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.settings-section__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.settings-section__subtitle {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: 1px;
}

.settings-section__body {
    padding: var(--space-5);
}

/* Form grid inside settings */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.settings-grid .col-span-2 {
    grid-column: span 2;
}

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--duration-base), background var(--duration-base);
    background: var(--surface-sunken);
}

.upload-zone:hover,
.upload-zone.is-dragover {
    border-color: var(--color-primary);
    background: rgba(14, 165, 233, 0.04);
}

.upload-zone__icon {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.upload-zone__text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.upload-zone__sub {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* API key input row */
.api-key-row {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.api-key-row .input {
    flex: 1;
    font-family: monospace;
    font-size: var(--text-sm);
}

/* Settings responsive */
@media (max-width: 900px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }
    .settings-sidebar {
        position: static;
    }
    .settings-sidebar .settings-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .settings-sidebar .settings-nav__item {
        width: auto;
    }
    .settings-grid {
        grid-template-columns: 1fr;
    }
    .settings-grid .col-span-2 {
        grid-column: span 1;
    }
}

/* ============================================================
   26. SETTINGS EXTRAS
   ============================================================ */
/* Active modifier alias (BEM style) */
.settings-nav__item--active,
.settings-nav__item.is-active {
    background: var(--color-primary-subtle, rgba(14,165,233,.12));
    color: var(--brand-primary);
    font-weight: var(--font-semibold);
}

/* Monospace input for API keys */
.input--mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: var(--text-sm);
    letter-spacing: 0.02em;
}

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}
.upload-zone:hover {
    border-color: var(--brand-primary);
    background: var(--color-primary-subtle, rgba(14,165,233,.05));
}

/* API key row */
.api-key-row {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}