/* ============================================================
   FACIL-UI — Design System Compartilhado
   Versão: 1.0.0
   Descrição: Sistema de componentes padronizado para o ecossistema Facil-SaaS.
   Dark mode glassmorphism, mobile-first, customizável por vertical.
   ============================================================ */

/* ============================================================
   1. DESIGN TOKENS
   Cada vertical sobrescreve --ui-primary, --ui-primary-hover, --ui-secondary
   ============================================================ */
:root {
    /* --- Cores da Marca (padrão: driver/laranja) --- */
    --ui-primary: #F97316;
    --ui-primary-hover: #EA580C;
    --ui-primary-soft: rgba(249, 115, 22, 0.1);
    --ui-primary-glow: rgba(249, 115, 22, 0.4);
    --ui-secondary: #3B82F6;
    --ui-secondary-soft: rgba(59, 130, 246, 0.1);

    /* --- Backgrounds --- */
    --ui-bg: #0B0F1A;
    --ui-surface: rgba(23, 31, 51, 0.6);
    --ui-surface-hover: rgba(30, 41, 59, 0.8);
    --ui-surface-solid: #1E293B;

    /* --- Texto --- */
    --ui-text: #F8FAFC;
    --ui-text-muted: #94A3B8;
    --ui-text-dim: #64748B;

    /* --- Cores Semânticas --- */
    --ui-success: #22C55E;
    --ui-success-soft: rgba(34, 197, 94, 0.1);
    --ui-warning: #EAB308;
    --ui-warning-soft: rgba(234, 179, 8, 0.1);
    --ui-danger: #EF4444;
    --ui-danger-soft: rgba(239, 68, 68, 0.1);
    --ui-info: #3B82F6;
    --ui-info-soft: rgba(59, 130, 246, 0.1);

    /* --- Bordas --- */
    --ui-border: rgba(255, 255, 255, 0.08);
    --ui-border-light: rgba(255, 255, 255, 0.12);

    /* --- Tipografia --- */
    --ui-font-heading: 'Outfit', sans-serif;
    --ui-font-body: 'Inter', sans-serif;

    /* --- Espaçamento --- */
    --ui-sp-1: 4px;
    --ui-sp-2: 8px;
    --ui-sp-3: 12px;
    --ui-sp-4: 16px;
    --ui-sp-5: 20px;
    --ui-sp-6: 24px;
    --ui-sp-8: 32px;
    --ui-sp-10: 40px;
    --ui-sp-12: 48px;
    --ui-sp-16: 64px;

    /* --- Border Radius --- */
    --ui-radius-sm: 8px;
    --ui-radius-md: 12px;
    --ui-radius-lg: 16px;
    --ui-radius-xl: 20px;
    --ui-radius-2xl: 24px;
    --ui-radius-pill: 999px;
    --ui-radius-full: 50%;

    /* --- Efeitos --- */
    --ui-glass-blur: blur(20px) saturate(160%);
    --ui-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --ui-transition-fast: all 0.15s ease;
    --ui-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    --ui-shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.2);
    --ui-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);

    /* --- Layout --- */
    --ui-sidebar-width: 260px;
    --ui-topbar-height: 70px;
    --ui-bottom-nav-height: 75px;
}

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

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

body {
    font-family: var(--ui-font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ui-text);
    background: var(--ui-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--ui-font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--ui-text);
}

a {
    color: var(--ui-primary);
    text-decoration: none;
    transition: var(--ui-transition-fast);
}

a:hover { color: var(--ui-primary-hover); }

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

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    outline: none;
}

ul, ol { list-style: none; }

::selection {
    background: var(--ui-primary);
    color: white;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--ui-border-light);
    border-radius: var(--ui-radius-pill);
}

/* ============================================================
   3. LAYOUT UTILITIES
   ============================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--ui-sp-6);
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--ui-sp-1); }
.gap-2 { gap: var(--ui-sp-2); }
.gap-3 { gap: var(--ui-sp-3); }
.gap-4 { gap: var(--ui-sp-4); }
.gap-5 { gap: var(--ui-sp-5); }
.gap-6 { gap: var(--ui-sp-6); }
.gap-8 { gap: var(--ui-sp-8); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.relative { position: relative; }
.absolute { position: absolute; }
.hidden { display: none; }
.block { display: block; }
.inline-flex { display: inline-flex; }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Margin / Padding helpers */
.mt-1 { margin-top: var(--ui-sp-1); }
.mt-2 { margin-top: var(--ui-sp-2); }
.mt-3 { margin-top: var(--ui-sp-3); }
.mt-4 { margin-top: var(--ui-sp-4); }
.mt-5 { margin-top: var(--ui-sp-5); }
.mt-6 { margin-top: var(--ui-sp-6); }
.mt-8 { margin-top: var(--ui-sp-8); }
.mb-1 { margin-bottom: var(--ui-sp-1); }
.mb-2 { margin-bottom: var(--ui-sp-2); }
.mb-3 { margin-bottom: var(--ui-sp-3); }
.mb-4 { margin-bottom: var(--ui-sp-4); }
.mb-6 { margin-bottom: var(--ui-sp-6); }
.mb-8 { margin-bottom: var(--ui-sp-8); }
.p-3 { padding: var(--ui-sp-3); }
.p-4 { padding: var(--ui-sp-4); }
.p-5 { padding: var(--ui-sp-5); }
.p-6 { padding: var(--ui-sp-6); }
.p-8 { padding: var(--ui-sp-8); }

/* Text utilities */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 2rem; }
.text-4xl { font-size: 2.5rem; }
.fw-medium { font-weight: 500; }
.fw-semibold { font-weight: 600; }
.fw-bold { font-weight: 700; }
.fw-extrabold { font-weight: 800; }
.text-muted { color: var(--ui-text-muted); }
.text-primary { color: var(--ui-primary); }
.text-success { color: var(--ui-success); }
.text-danger { color: var(--ui-danger); }
.text-warning { color: var(--ui-warning); }
.uppercase { text-transform: uppercase; letter-spacing: 1px; }
.capitalize { text-transform: capitalize; }
.no-wrap { white-space: nowrap; }

/* ============================================================
   4. CARD (Glass Card)
   ============================================================ */
.ui-card {
    background: var(--ui-surface);
    backdrop-filter: var(--ui-glass-blur);
    -webkit-backdrop-filter: var(--ui-glass-blur);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-2xl);
    padding: var(--ui-sp-6);
    box-shadow: var(--ui-shadow);
    transition: var(--ui-transition);
}

.ui-card:hover {
    border-color: var(--ui-border-light);
}

.ui-card-sm {
    padding: var(--ui-sp-4);
    border-radius: var(--ui-radius-lg);
}

.ui-card-lg {
    padding: var(--ui-sp-8);
}

.ui-card-flat {
    box-shadow: none;
    background: rgba(255, 255, 255, 0.03);
}

.ui-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--ui-sp-5);
    border-bottom: 1px solid var(--ui-border);
    margin-bottom: var(--ui-sp-5);
}

.ui-card-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

/* ============================================================
   5. BUTTONS
   ============================================================ */
.ui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ui-sp-2);
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: var(--ui-radius-md);
    font-family: var(--ui-font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--ui-transition);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.4;
}

.ui-btn:active { transform: scale(0.97); }

/* Primary */
.ui-btn-primary {
    background: var(--ui-primary);
    color: white;
    border-color: var(--ui-primary);
}

.ui-btn-primary:hover {
    background: var(--ui-primary-hover);
    border-color: var(--ui-primary-hover);
    box-shadow: 0 10px 25px -5px var(--ui-primary-glow);
    transform: translateY(-2px);
    color: white;
}

/* Secondary */
.ui-btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--ui-text);
    border-color: var(--ui-border-light);
}

.ui-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--ui-text);
}

/* Outline */
.ui-btn-outline {
    background: transparent;
    color: var(--ui-text);
    border-color: var(--ui-border-light);
}

.ui-btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--ui-primary);
    color: var(--ui-primary);
}

/* Danger */
.ui-btn-danger {
    background: var(--ui-danger);
    color: white;
    border-color: var(--ui-danger);
}

.ui-btn-danger:hover {
    background: #DC2626;
    box-shadow: 0 10px 25px -5px rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
    color: white;
}

/* Ghost (transparent) */
.ui-btn-ghost {
    background: transparent;
    color: var(--ui-text-muted);
    border-color: transparent;
    padding: 8px 12px;
}

.ui-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--ui-text);
}

/* Sizes */
.ui-btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: var(--ui-radius-sm);
}

.ui-btn-lg {
    padding: 14px 28px;
    font-size: 1.1rem;
    border-radius: var(--ui-radius-md);
}

.ui-btn-block { width: 100%; }

.ui-btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--ui-radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--ui-border);
    color: var(--ui-text-muted);
}

.ui-btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--ui-text);
}

/* ============================================================
   6. FORM INPUTS
   ============================================================ */
.ui-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--ui-sp-2);
    margin-bottom: var(--ui-sp-5);
}

.ui-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ui-input,
.ui-select,
.ui-textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    color: var(--ui-text);
    font-size: 1rem;
    transition: var(--ui-transition);
}

.ui-input::placeholder,
.ui-textarea::placeholder {
    color: var(--ui-text-dim);
}

.ui-input:focus,
.ui-select:focus,
.ui-textarea:focus {
    border-color: var(--ui-primary);
    box-shadow: 0 0 0 3px var(--ui-primary-soft);
}

.ui-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

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

.ui-input-group {
    display: flex;
    gap: var(--ui-sp-3);
}

.ui-input-group .ui-input { flex: 1; }

.ui-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--ui-sp-4);
}

@media (max-width: 600px) {
    .ui-form-row { grid-template-columns: 1fr; }
}

/* ============================================================
   7. STATUS BADGES
   ============================================================ */
.ui-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--ui-sp-1);
    padding: 4px 12px;
    border-radius: var(--ui-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.ui-badge-success {
    background: var(--ui-success-soft);
    color: var(--ui-success);
}

.ui-badge-warning {
    background: var(--ui-warning-soft);
    color: var(--ui-warning);
}

.ui-badge-danger {
    background: var(--ui-danger-soft);
    color: var(--ui-danger);
}

.ui-badge-info {
    background: var(--ui-info-soft);
    color: var(--ui-info);
}

.ui-badge-primary {
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
}

.ui-badge-neutral {
    background: rgba(255, 255, 255, 0.08);
    color: var(--ui-text-muted);
}

/* Status-specific aliases */
.ui-badge-pending { background: var(--ui-warning-soft); color: var(--ui-warning); }
.ui-badge-accepted { background: var(--ui-success-soft); color: var(--ui-success); }
.ui-badge-confirmed { background: var(--ui-success-soft); color: var(--ui-success); }
.ui-badge-in_progress { background: var(--ui-info-soft); color: var(--ui-info); }
.ui-badge-completed { background: var(--ui-success-soft); color: var(--ui-success); }
.ui-badge-canceled { background: var(--ui-danger-soft); color: var(--ui-danger); }
.ui-badge-paid { background: var(--ui-success-soft); color: var(--ui-success); }

/* ============================================================
   8. TABLES
   ============================================================ */
.ui-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.ui-table {
    width: 100%;
    border-collapse: collapse;
}

.ui-table th {
    text-align: left;
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.2);
    color: var(--ui-text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

.ui-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--ui-border);
    font-size: 0.9rem;
    vertical-align: middle;
}

.ui-table tr:last-child td { border-bottom: none; }

.ui-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Mobile card view */
@media (max-width: 768px) {
    .ui-table thead { display: none; }

    .ui-table tr {
        display: block;
        background: var(--ui-surface);
        border: 1px solid var(--ui-border);
        border-radius: var(--ui-radius-lg);
        padding: var(--ui-sp-4);
        margin-bottom: var(--ui-sp-3);
    }

    .ui-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--ui-sp-2) 0;
        border-bottom: 1px solid var(--ui-border);
        font-size: 0.85rem;
    }

    .ui-table td:last-child { border-bottom: none; }

    .ui-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--ui-text-muted);
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 1px;
    }
}

/* ============================================================
   9. MODAL
   ============================================================ */
.ui-modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--ui-sp-5);
}

.ui-modal-overlay.active { display: flex; }

.ui-modal {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--ui-surface-solid);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-2xl);
    padding: var(--ui-sp-8);
    box-shadow: var(--ui-shadow-lg);
    animation: uiModalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ui-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--ui-sp-6);
}

.ui-modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.ui-modal-close {
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-sm);
    color: var(--ui-text-muted);
    cursor: pointer;
    transition: var(--ui-transition-fast);
    font-size: 1.2rem;
}

.ui-modal-close:hover {
    background: var(--ui-danger-soft);
    color: var(--ui-danger);
    border-color: var(--ui-danger);
}

.ui-modal-body { margin-bottom: var(--ui-sp-6); }

.ui-modal-footer {
    display: flex;
    gap: var(--ui-sp-3);
    justify-content: flex-end;
}

@keyframes uiModalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ============================================================
   10. TOAST NOTIFICATIONS
   ============================================================ */
.ui-toast-container {
    position: fixed;
    top: var(--ui-sp-6);
    right: var(--ui-sp-6);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--ui-sp-3);
    pointer-events: none;
}

.ui-toast {
    display: flex;
    align-items: center;
    gap: var(--ui-sp-3);
    padding: var(--ui-sp-4) var(--ui-sp-5);
    background: var(--ui-surface-solid);
    backdrop-filter: var(--ui-glass-blur);
    -webkit-backdrop-filter: var(--ui-glass-blur);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    box-shadow: var(--ui-shadow);
    min-width: 300px;
    max-width: 450px;
    pointer-events: auto;
    animation: uiToastIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-left: 4px solid var(--ui-text-muted);
}

.ui-toast-success { border-left-color: var(--ui-success); }
.ui-toast-error { border-left-color: var(--ui-danger); }
.ui-toast-warning { border-left-color: var(--ui-warning); }
.ui-toast-info { border-left-color: var(--ui-info); }

.ui-toast-icon { font-size: 1.2rem; flex-shrink: 0; }
.ui-toast-success .ui-toast-icon { color: var(--ui-success); }
.ui-toast-error .ui-toast-icon { color: var(--ui-danger); }
.ui-toast-warning .ui-toast-icon { color: var(--ui-warning); }
.ui-toast-info .ui-toast-icon { color: var(--ui-info); }

.ui-toast-content { flex: 1; }
.ui-toast-title { font-weight: 600; font-size: 0.9rem; }
.ui-toast-message { font-size: 0.8rem; color: var(--ui-text-muted); margin-top: 2px; }

@keyframes uiToastIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 480px) {
    .ui-toast-container {
        left: var(--ui-sp-4);
        right: var(--ui-sp-4);
        top: var(--ui-sp-4);
    }
    .ui-toast { min-width: auto; width: 100%; }
}

/* ============================================================
   11. STAT CARDS (Dashboard)
   ============================================================ */
.ui-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--ui-sp-6);
}

.ui-stat-card {
    background: var(--ui-surface);
    backdrop-filter: var(--ui-glass-blur);
    -webkit-backdrop-filter: var(--ui-glass-blur);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    padding: var(--ui-sp-6);
    display: flex;
    flex-direction: column;
    gap: var(--ui-sp-3);
    transition: var(--ui-transition);
    position: relative;
    overflow: hidden;
}

.ui-stat-card:hover {
    border-color: var(--ui-border-light);
    transform: translateY(-2px);
}

.ui-stat-card .stat-icon {
    position: absolute;
    top: var(--ui-sp-4);
    right: var(--ui-sp-4);
    font-size: 2.5rem;
    opacity: 0.08;
    color: var(--ui-primary);
}

.ui-stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ui-stat-value {
    font-family: var(--ui-font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
}

.ui-stat-trend {
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: var(--ui-sp-1);
}

.ui-stat-trend.up { color: var(--ui-success); }
.ui-stat-trend.down { color: var(--ui-danger); }

/* ============================================================
   12. AVATAR (Iniciais)
   ============================================================ */
.ui-avatar {
    width: 48px; height: 48px;
    border-radius: var(--ui-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--ui-font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: white;
    background: linear-gradient(135deg, var(--ui-primary), var(--ui-secondary));
    flex-shrink: 0;
}

.ui-avatar-sm { width: 36px; height: 36px; font-size: 0.85rem; }
.ui-avatar-lg { width: 64px; height: 64px; font-size: 1.5rem; }
.ui-avatar-xl { width: 90px; height: 90px; font-size: 2rem; }

.ui-avatar-border {
    border: 3px solid var(--ui-primary);
    padding: 3px;
}

/* ============================================================
   13. STATUS TRACKER
   ============================================================ */
.ui-tracker {
    display: flex;
    justify-content: space-between;
    position: relative;
    padding: var(--ui-sp-4) 0;
}

.ui-tracker::before {
    content: '';
    position: absolute;
    top: calc(var(--ui-sp-4) + 9px);
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--ui-border);
}

.ui-tracker-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ui-sp-2);
    z-index: 1;
}

.ui-tracker-dot {
    width: 20px; height: 20px;
    border-radius: var(--ui-radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--ui-border);
    transition: var(--ui-transition);
}

.ui-tracker-step.active .ui-tracker-dot {
    background: var(--ui-primary);
    border-color: var(--ui-primary);
    box-shadow: 0 0 12px var(--ui-primary-glow);
}

.ui-tracker-step.done .ui-tracker-dot {
    background: var(--ui-success);
    border-color: var(--ui-success);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.4);
}

.ui-tracker-label {
    font-size: 0.7rem;
    color: var(--ui-text-dim);
    text-align: center;
}

.ui-tracker-step.active .ui-tracker-label,
.ui-tracker-step.done .ui-tracker-label {
    color: var(--ui-text);
    font-weight: 600;
}

/* ============================================================
   14. SKELETON LOADING
   ============================================================ */
.ui-skeleton {
    background: linear-gradient(90deg,
        rgba(255, 255, 255, 0.03) 25%,
        rgba(255, 255, 255, 0.08) 50%,
        rgba(255, 255, 255, 0.03) 75%
    );
    background-size: 200% 100%;
    animation: uiShimmer 1.5s infinite;
    border-radius: var(--ui-radius-md);
}

.ui-skeleton-text { height: 14px; margin-bottom: var(--ui-sp-2); }
.ui-skeleton-title { height: 20px; width: 60%; margin-bottom: var(--ui-sp-3); }
.ui-skeleton-avatar { width: 48px; height: 48px; border-radius: var(--ui-radius-full); }
.ui-skeleton-card { height: 120px; }

@keyframes uiShimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ============================================================
   15. NAVIGATION — SIDEBAR + BOTTOM NAV
   ============================================================ */
.ui-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar (desktop) */
.ui-sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--ui-sidebar-width);
    height: 100vh;
    background: var(--ui-surface);
    backdrop-filter: var(--ui-glass-blur);
    -webkit-backdrop-filter: var(--ui-glass-blur);
    border-right: 1px solid var(--ui-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--ui-transition);
}

.ui-sidebar-logo {
    padding: var(--ui-sp-5) var(--ui-sp-6);
    border-bottom: 1px solid var(--ui-border);
    display: flex;
    align-items: center;
    gap: var(--ui-sp-3);
    height: var(--ui-topbar-height);
}

.ui-sidebar-logo .logo-text {
    font-family: var(--ui-font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--ui-primary), var(--ui-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ui-sidebar-nav {
    flex: 1;
    padding: var(--ui-sp-4) var(--ui-sp-3);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--ui-sp-1);
}

.ui-nav-item {
    display: flex;
    align-items: center;
    gap: var(--ui-sp-3);
    padding: 12px 16px;
    border-radius: var(--ui-radius-md);
    color: var(--ui-text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--ui-transition-fast);
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.ui-nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--ui-text);
}

.ui-nav-item.active {
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
    font-weight: 600;
}

.ui-nav-item i { font-size: 1.2rem; }

.ui-sidebar-footer {
    padding: var(--ui-sp-4) var(--ui-sp-6);
    border-top: 1px solid var(--ui-border);
}

/* Content area */
.ui-content {
    flex: 1;
    margin-left: var(--ui-sidebar-width);
    padding: var(--ui-sp-6);
    padding-top: calc(var(--ui-topbar-height) + var(--ui-sp-6));
    min-height: 100vh;
}

/* Top Bar */
.ui-topbar {
    position: fixed;
    top: 0;
    left: var(--ui-sidebar-width);
    right: 0;
    height: var(--ui-topbar-height);
    background: var(--ui-surface);
    backdrop-filter: var(--ui-glass-blur);
    -webkit-backdrop-filter: var(--ui-glass-blur);
    border-bottom: 1px solid var(--ui-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--ui-sp-6);
    z-index: 90;
}

.ui-topbar-title {
    font-family: var(--ui-font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.ui-topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--ui-sp-3);
}

/* Bottom Navigation (mobile) */
.ui-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: var(--ui-bottom-nav-height);
    background: var(--ui-surface);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid var(--ui-border);
    z-index: 100;
    justify-content: space-around;
    align-items: center;
    padding: 0 var(--ui-sp-2);
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.ui-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: var(--ui-sp-2) var(--ui-sp-3);
    color: var(--ui-text-dim);
    font-size: 0.65rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--ui-transition-fast);
    text-decoration: none;
    border: none;
    background: none;
    border-radius: var(--ui-radius-sm);
}

.ui-bottom-nav-item i { font-size: 1.3rem; }

.ui-bottom-nav-item:hover,
.ui-bottom-nav-item.active {
    color: var(--ui-primary);
}

.ui-bottom-nav-item.active {
    background: var(--ui-primary-soft);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .ui-sidebar { display: none; }

    .ui-content {
        margin-left: 0;
        padding: var(--ui-sp-4);
        padding-top: var(--ui-sp-4);
        padding-bottom: calc(var(--ui-bottom-nav-height) + var(--ui-sp-4));
    }

    .ui-topbar {
        left: 0;
        padding: 0 var(--ui-sp-4);
    }

    .ui-bottom-nav { display: flex; }
}

/* ============================================================
   16. HERO / LANDING SECTIONS
   ============================================================ */
.ui-hero {
    padding: 120px 0 80px;
    text-align: center;
}

.ui-hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    letter-spacing: -2px;
    margin-bottom: var(--ui-sp-5);
    line-height: 1.1;
}

.ui-hero p {
    font-size: 1.15rem;
    color: var(--ui-text-muted);
    max-width: 600px;
    margin: 0 auto var(--ui-sp-8);
    line-height: 1.7;
}

.ui-section {
    padding: 80px 0;
}

.ui-section-header {
    text-align: center;
    margin-bottom: var(--ui-sp-16);
}

.ui-section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: var(--ui-sp-3);
}

.ui-section-header p {
    font-size: 1.1rem;
    color: var(--ui-text-muted);
    max-width: 500px;
    margin: 0 auto;
}

.ui-highlight {
    color: var(--ui-primary);
}

.ui-highlight-gradient {
    background: linear-gradient(135deg, var(--ui-primary), var(--ui-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================================
   17. ANIMATIONS
   ============================================================ */
.ui-animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.ui-animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.ui-delay-1 { transition-delay: 0.1s; }
.ui-delay-2 { transition-delay: 0.2s; }
.ui-delay-3 { transition-delay: 0.3s; }
.ui-delay-4 { transition-delay: 0.4s; }

@keyframes uiPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes uiFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes uiSpin {
    to { transform: rotate(360deg); }
}

.ui-animate-pulse { animation: uiPulse 2s infinite; }
.ui-animate-float { animation: uiFloat 6s ease-in-out infinite; }
.ui-animate-spin { animation: uiSpin 1s linear infinite; }

/* ============================================================
   18. EMPTY STATE
   ============================================================ */
.ui-empty {
    text-align: center;
    padding: var(--ui-sp-12) var(--ui-sp-6);
    color: var(--ui-text-muted);
}

.ui-empty i {
    font-size: 3rem;
    margin-bottom: var(--ui-sp-4);
    opacity: 0.3;
}

.ui-empty h4 {
    font-size: 1.1rem;
    margin-bottom: var(--ui-sp-2);
    color: var(--ui-text);
}

.ui-empty p {
    font-size: 0.9rem;
    max-width: 300px;
    margin: 0 auto;
}

/* ============================================================
   19. DIVIDER
   ============================================================ */
.ui-divider {
    height: 1px;
    background: var(--ui-border);
    margin: var(--ui-sp-6) 0;
    border: none;
}

/* ============================================================
   20. TOGGLE / SWITCH
   ============================================================ */
.ui-toggle {
    position: relative;
    width: 48px;
    height: 26px;
    cursor: pointer;
}

.ui-toggle input { display: none; }

.ui-toggle-slider {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--ui-radius-pill);
    transition: var(--ui-transition);
}

.ui-toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px; height: 20px;
    left: 3px; top: 3px;
    background: white;
    border-radius: var(--ui-radius-full);
    transition: var(--ui-transition);
}

.ui-toggle input:checked + .ui-toggle-slider {
    background: var(--ui-primary);
}

.ui-toggle input:checked + .ui-toggle-slider::before {
    transform: translateX(22px);
}