/* ============================================================
   VAAD - Application de Gestion de Copropriété
   Stylesheet mobile-first moderne
   ============================================================ */

/* ============================================================
   CSS VARIABLES & THEME
   ============================================================ */
:root {
    /* Colors */
    --primary: #6c5ce7;
    --primary-light: #a29bfe;
    --primary-dark: #5a4bd1;
    --primary-bg: rgba(108, 92, 231, 0.1);

    --secondary: #00cec9;
    --secondary-light: #81ecec;

    --accent: #fd79a8;
    --accent-light: #fab1c4;

    --success: #00b894;
    --success-light: rgba(0, 184, 148, 0.1);
    --warning: #fdcb6e;
    --warning-light: rgba(253, 203, 110, 0.1);
    --danger: #e17055;
    --danger-light: rgba(225, 112, 85, 0.1);
    --info: #74b9ff;
    --info-light: rgba(116, 185, 255, 0.1);
    --orange: #e67e22;
    --orange-light: rgba(230, 126, 34, 0.1);
    --purple: #a855f7;
    --purple-light: rgba(168, 85, 247, 0.1);

    /* Background & Surface - Light theme */
    --bg-primary: #f5f6fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f9ff;
    --bg-input: #f5f6fa;
    --bg-modal: #ffffff;

    /* Text */
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-muted: #b2bec3;
    --text-inverse: #ffffff;

    /* Borders */
    --border: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.04);
    --border-focus: var(--primary);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.15);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;

    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-collapsed: 0px;

    /* Topbar */
    --topbar-height: 64px;

    /* Bottom nav */
    --bottomnav-height: 64px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Font */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--primary-bg);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
}

.nav-section {
    padding: var(--spacing-xs) var(--spacing-md);
}

.nav-section-title {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0.7rem var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    margin: 2px 0;
}

.nav-link:hover {
    background: var(--primary-bg);
    color: var(--primary-light);
}

.nav-link.active {
    background: var(--primary-bg);
    color: var(--primary-light);
    font-weight: 600;
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.nav-badge:empty { display: none; }

/* Language Selector */
.sidebar-lang {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    background: transparent;
    border: 1px solid var(--border);
    flex: 1;
    justify-content: center;
    min-width: 0;
}

.lang-btn:hover {
    background: var(--primary-bg);
    color: var(--primary-light);
    border-color: var(--primary);
}

.lang-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-weight: 600;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
}

.logout-link { color: var(--danger) !important; }
.logout-link:hover { background: var(--danger-light) !important; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
    backdrop-filter: blur(4px);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition);
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 100;
    backdrop-filter: blur(20px);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.page-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.topbar-search {
    position: relative;
    display: flex;
    align-items: center;
}

.topbar-search i {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.topbar-search input {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 0.5rem 1rem 0.5rem 2.3rem;
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 220px;
    transition: var(--transition);
    font-family: var(--font);
}

.topbar-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
    width: 280px;
}

.topbar-search input::placeholder { color: var(--text-muted); }

.topbar-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    font-size: 1rem;
}

.topbar-btn:hover {
    background: var(--primary-bg);
    color: var(--primary-light);
    border-color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--danger);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================================
   NOTIFICATIONS PANEL
   ============================================================ */
.notifications-panel {
    position: fixed;
    top: var(--topbar-height);
    right: var(--spacing-lg);
    width: min(380px, calc(100vw - 2rem));
    max-height: min(500px, 70vh);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    overflow: hidden;
}

.notif-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.notif-header h3 { font-size: 0.95rem; }

.notif-list {
    max-height: 400px;
    overflow-y: auto;
}

.notif-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: var(--transition-fast);
}

.notif-item:hover { background: var(--bg-card-hover); }
.notif-item.unread { border-left: 3px solid var(--primary); }

.notif-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.85rem;
}

.notif-content { flex: 1; min-width: 0; }
.notif-title { font-size: 0.85rem; font-weight: 600; }
.notif-message { font-size: 0.78rem; color: var(--text-secondary); margin-top: 2px; }
.notif-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 4px; }

.notif-empty {
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-muted);
}

/* ============================================================
   PAGE CONTENT
   ============================================================ */
.page-content {
    padding: var(--spacing-lg);
    max-width: 1400px;
}

/* ============================================================
   BOTTOM NAVIGATION (Mobile)
   ============================================================ */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottomnav-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    z-index: 100;
    justify-content: space-around;
    align-items: center;
    padding: 0 var(--spacing-sm);
    backdrop-filter: blur(20px);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.65rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    min-width: 56px;
}

.bottom-nav-item i { font-size: 1.15rem; }

.bottom-nav-item.active {
    color: var(--primary-light);
}

.bottom-nav-item.active i {
    background: var(--primary-bg);
    padding: 4px 12px;
    border-radius: var(--radius-xl);
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

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

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

.card-header h2, .card-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.card-body { padding: var(--spacing-lg); }

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ============================================================
   STAT CARDS
   ============================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    transition: var(--transition);
    cursor: default;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-icon.primary { background: var(--primary-bg); color: var(--primary-light); }
.stat-icon.success { background: var(--success-light); color: var(--success); }
.stat-icon.warning { background: var(--warning-light); color: var(--warning); }
.stat-icon.danger { background: var(--danger-light); color: var(--danger); }
.stat-icon.info { background: var(--info-light); color: var(--info); }
.stat-icon.secondary { background: rgba(160, 160, 184, 0.1); color: var(--text-secondary); }

.stat-content { flex: 1; min-width: 0; }

.stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 2px;
    font-weight: 500;
}

.stat-change {
    font-size: 0.72rem;
    font-weight: 600;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 6px;
    border-radius: 4px;
}

.stat-change.up { color: var(--success); background: var(--success-light); }
.stat-change.down { color: var(--danger); background: var(--danger-light); }

/* ============================================================
   GRID LAYOUTS
   ============================================================ */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

/* ============================================================
   TABLES
   ============================================================ */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

thead {
    background: var(--bg-secondary);
}

th {
    padding: 0.85rem var(--spacing-md);
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 0.85rem var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

tr:hover td { background: var(--bg-card-hover); }

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

.table-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ============================================================
   BADGES
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.badge-primary { background: var(--primary-bg); color: var(--primary-light); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-secondary { background: rgba(160, 160, 184, 0.15); color: var(--text-secondary); }
.badge-orange { background: var(--orange-light); color: var(--orange); }
.badge-purple { background: var(--purple-light); color: var(--purple); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

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

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
}
.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.4);
    color: white;
}

.btn-success { background: var(--success); color: white; }
.btn-success:hover { filter: brightness(1.1); color: white; }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { filter: brightness(1.1); color: white; }

.btn-warning { background: var(--warning); color: var(--text-inverse); }
.btn-warning:hover { filter: brightness(1.1); color: var(--text-inverse); }

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--primary-light);
    border: none;
    padding: 0.4rem 0.8rem;
}
.btn-ghost:hover { background: var(--primary-bg); }

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.78rem; }
.btn-lg { padding: 0.8rem 1.8rem; font-size: 1rem; }

.btn-block { width: 100%; }

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================================
   FORMS
   ============================================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 0.65rem var(--spacing-md);
    font-size: 0.9rem;
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a0a0b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
    gap: var(--spacing-md);
}

.form-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: 0.72rem;
    color: var(--danger);
    margin-top: 4px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* ============================================================
   MODALS
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.modal-lg { max-width: 900px; }
.modal.modal-sm { max-width: 420px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 1.1rem; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
}

.modal-close:hover { color: var(--danger); }

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border);
}

/* ============================================================
   TOASTS
   ============================================================ */
.toast-container {
    position: fixed;
    top: calc(var(--topbar-height) + var(--spacing-md));
    right: var(--spacing-lg);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: min(300px, calc(100vw - 2rem));
    max-width: min(420px, calc(100vw - 2rem));
    animation: slideInRight 0.3s ease;
}

.toast.toast-success { border-left: 4px solid var(--success); }
.toast.toast-error { border-left: 4px solid var(--danger); }
.toast.toast-warning { border-left: 4px solid var(--warning); }
.toast.toast-info { border-left: 4px solid var(--info); }

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

.toast-message { font-size: 0.85rem; flex: 1; }

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 1rem;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg) 0;
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.pagination-btn:hover { border-color: var(--primary); color: var(--primary-light); }

.pagination-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 0.85rem;
    max-width: 360px;
    margin: 0 auto var(--spacing-lg);
}

/* ============================================================
   TABS
   ============================================================ */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
    font-family: var(--font);
}

.tab-btn:hover { color: var(--text-secondary); }

.tab-btn.active {
    color: var(--primary-light);
    border-bottom-color: var(--primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ============================================================
   FILTER BAR
   ============================================================ */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.filter-bar .form-control {
    width: auto;
    min-width: 150px;
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
}

.filter-bar .search-input {
    flex: 1;
    min-width: 200px;
}

/* ============================================================
   DETAIL VIEW
   ============================================================ */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: var(--spacing-lg);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.detail-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.detail-value {
    font-size: 0.92rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-fill.primary { background: var(--primary); }
.progress-fill.success { background: var(--success); }
.progress-fill.warning { background: var(--warning); }
.progress-fill.danger { background: var(--danger); }

/* ============================================================
   CHARTS
   ============================================================ */
.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
    position: relative;
    padding-left: 28px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 4px;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-card);
}

.timeline-date {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.timeline-content {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================================
   LIST CARDS (Mobile-friendly alternative to tables)
   ============================================================ */
.list-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.list-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-fast);
    cursor: pointer;
}

.list-card:hover {
    border-color: var(--primary);
    background: var(--bg-card-hover);
}

.list-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.list-card-content {
    flex: 1;
    min-width: 0;
}

.list-card-title {
    font-weight: 600;
    font-size: 0.9rem;
}

.list-card-subtitle {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.list-card-meta {
    text-align: right;
    flex-shrink: 0;
}

.list-card-amount {
    font-weight: 700;
    font-size: 0.95rem;
}

.list-card-date {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

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

.animate-fade-in { animation: fadeIn 0.3s ease; }
.animate-slide-up { animation: slideUp 0.4s ease; }

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--border) 25%, var(--bg-card-hover) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: var(--spacing-lg);
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo .logo-icon {
    width: 64px;
    height: 64px;
    font-size: 1.8rem;
    margin: 0 auto var(--spacing-md);
}

.login-logo h1 {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-logo p {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-top: var(--spacing-xs);
}

.login-error {
    background: var(--danger-light);
    color: var(--danger);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-md);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
}

.login-error.show { display: flex; }

/* ============================================================
   RESPONSIVE - TABLET
   ============================================================ */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .topbar-search input { width: 180px; }
    .topbar-search input:focus { width: 220px; }
}

/* ============================================================
   RESPONSIVE - MOBILE
   ============================================================ */
@media (max-width: 768px) {
    :root {
        --topbar-height: 56px;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close { display: block; }

    .sidebar-overlay.show { display: block; }

    .main-content {
        margin-left: 0;
        padding-bottom: var(--bottomnav-height);
    }

    .menu-toggle { display: flex; }

    .bottom-nav { display: flex; }

    .page-content {
        padding: var(--spacing-md);
    }

    .page-title { font-size: 1.1rem; }

    .topbar-search { display: none; }

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

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-value { font-size: 1.3rem; }
    .stat-icon { width: 40px; height: 40px; font-size: 1rem; }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-control,
    .filter-bar .search-input {
        width: 100%;
    }

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

    .btn-group {
        width: 100%;
    }

    .btn-group .btn {
        flex: 1;
    }

    .modal { margin: var(--spacing-md); max-height: calc(100vh - 2rem); }

    .notifications-panel {
        left: var(--spacing-md);
        right: var(--spacing-md);
        width: auto;
    }

    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }

    .toast {
        min-width: auto;
        max-width: none;
    }

    /* Hide table on mobile, show cards */
    .table-desktop { display: none; }
    .cards-mobile { display: block; }

    .chart-container { height: 220px; }

    .form-row {
        grid-template-columns: 1fr;
    }

    .tabs {
        gap: 0;
    }

    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.78rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .stat-card {
        flex-direction: row;
        align-items: center;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .card-header .btn-group,
    .card-header .btn {
        width: 100%;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .login-card {
        padding: var(--spacing-lg);
    }

    .page-title { font-size: 1rem; }
}

/* ============================================================
   RESPONSIVE - EXTRA SMALL (320px phones)
   ============================================================ */
@media (max-width: 360px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.25rem;
    }

    .page-content {
        padding: var(--spacing-sm);
    }

    .stat-card {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .stat-value { font-size: 1.1rem; }
    .stat-icon { width: 36px; height: 36px; font-size: 0.9rem; }

    .card-body {
        padding: var(--spacing-md);
    }

    .card-header {
        padding: var(--spacing-md);
    }

    .btn { padding: 0.5rem 0.8rem; font-size: 0.8rem; }
    .btn-sm { padding: 0.3rem 0.6rem; font-size: 0.72rem; }

    .topbar {
        padding: 0 var(--spacing-sm);
    }

    .bottom-nav-item {
        min-width: 48px;
        padding: var(--spacing-xs) 2px;
        font-size: 0.6rem;
    }

    .modal {
        margin: var(--spacing-xs);
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-md);
    }

    .tab-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.72rem;
    }

    .list-card {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .list-card-icon {
        width: 36px;
        height: 36px;
        font-size: 0.95rem;
    }

    .badge { font-size: 0.65rem; padding: 2px 6px; }

    .empty-state i { font-size: 2rem; }
    .empty-state h3 { font-size: 0.95rem; }
    .empty-state p { font-size: 0.78rem; }
}

/* Desktop: hide mobile cards, show tables */
@media (min-width: 769px) {
    .cards-mobile { display: none; }
}

/* ============================================================
   RESPONSIVE GRID HELPERS
   ============================================================ */
.responsive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
    gap: var(--spacing-md);
}

.responsive-grid-sm {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
    gap: var(--spacing-md);
}

.responsive-grid-lg {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
    gap: var(--spacing-md);
}

/* Ensure progress bars are responsive */
.progress-bar {
    width: 100%;
    min-width: 60px;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-light); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.82rem; }
.text-xs { font-size: 0.72rem; }
.font-bold { font-weight: 700; }
.font-mono { font-family: var(--font-mono); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.hidden { display: none !important; }
.overflow-hidden { overflow: hidden; }
.w-100 { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Print */
@media print {
    .sidebar, .topbar, .bottom-nav, .modal-overlay, .toast-container { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .page-content { padding: 0; }
    body { background: white; color: black; }
}