/* ============================================
   AM_VM Platform — Aptitudes Méditerranée
   Premium Design System
   ============================================ */

:root {
    /* Brand colors from logo */
    --brand-blue: #5b9bd5;
    --brand-blue-dark: #3a7cc0;
    --brand-blue-light: #a3c9ed;
    --brand-gray: #6b7b8d;
    --brand-teal: #78b4b4;

    /* Semantic colors */
    --color-primary: #4a90d9;
    --color-primary-hover: #3a7cc0;
    --color-primary-light: rgba(74, 144, 217, 0.08);
    --color-primary-soft: rgba(74, 144, 217, 0.15);

    --color-success: #34c38f;
    --color-success-bg: rgba(52, 195, 143, 0.1);
    --color-danger: #f46a6a;
    --color-danger-bg: rgba(244, 106, 106, 0.1);
    --color-warning: #f1b44c;
    --color-warning-bg: rgba(241, 180, 76, 0.1);
    --color-info: #50a5f1;
    --color-info-bg: rgba(80, 165, 241, 0.1);

    /* Surfaces */
    --bg-body: #f4f6fb;
    --bg-card: #ffffff;
    --bg-sidebar: #1a2332;
    --bg-sidebar-hover: rgba(255,255,255,0.06);
    --bg-sidebar-active: rgba(74, 144, 217, 0.18);
    --bg-input: #f8fafc;

    /* Text */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-sidebar: rgba(255,255,255,0.65);
    --text-sidebar-active: #ffffff;

    /* Borders */
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);

    /* Sidebar */
    --sidebar-width: 260px;

    /* Font */
    --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Transitions */
    --transition: all 0.2s ease;
}

/* Dark theme */
[data-theme="dark"] {
    --bg-body: #0f1623;
    --bg-card: #1a2332;
    --bg-sidebar: #111827;
    --bg-input: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #2d3a4d;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.2);
    --color-primary-light: rgba(74, 144, 217, 0.12);
}

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

html { font-size: 14px; scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0; top: 0;
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-logo {
    width: 38px; height: 38px;
    border-radius: 10px;
    object-fit: contain;
    background: white;
    padding: 3px;
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
}

.nav-section {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.3);
    padding: 20px 12px 8px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    color: var(--text-sidebar);
    font-weight: 500;
    font-size: 0.92rem;
    transition: var(--transition);
    margin-bottom: 2px;
}

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

.nav-item.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
}

.nav-item i { width: 20px; text-align: center; font-size: 1rem; opacity: 0.8; }
.nav-item.active i { opacity: 1; }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.user-avatar {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-teal));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.user-info { min-width: 0; }
.user-name { color: #fff; font-weight: 600; font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { color: rgba(255,255,255,0.4); font-size: 0.75rem; }

.btn-logout {
    width: 36px; height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.4);
    transition: var(--transition);
}
.btn-logout:hover { background: rgba(244,106,106,0.2); color: var(--color-danger); }

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 64px;
    padding: 0 28px;
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.sidebar-toggle {
    display: none;
    border: none;
    background: none;
    font-size: 1.2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
}
.sidebar-toggle:hover { background: var(--color-primary-light); }

.search-global {
    flex: 1;
    max-width: 520px;
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0 14px;
    transition: var(--transition);
}
.search-global:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}
.search-global i { color: var(--text-muted); font-size: 0.9rem; }
.search-global input {
    flex: 1;
    border: none;
    background: none;
    padding: 10px 12px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--text-primary);
    outline: none;
}
.search-global input::placeholder { color: var(--text-muted); }

.search-results {
    position: absolute;
    top: calc(100% + 6px);
    left: 0; right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: none;
    max-height: 380px;
    overflow-y: auto;
    z-index: 200;
}

.search-results.show { display: block; }

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--color-primary-light); }

.search-result-type {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 3px 8px;
    border-radius: 6px;
    white-space: nowrap;
}

.theme-toggle {
    width: 38px; height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.theme-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ============================================
   PAGE CONTENT
   ============================================ */
.page-content { padding: 28px; flex: 1; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--text-muted); }

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

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 650;
    color: var(--text-primary);
}

.card-body { padding: 22px; }
.card-body.no-padding { padding: 0; }

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}
.kpi-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.kpi-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.kpi-icon.blue { background: var(--color-primary-light); color: var(--color-primary); }
.kpi-icon.green { background: var(--color-success-bg); color: var(--color-success); }
.kpi-icon.red { background: var(--color-danger-bg); color: var(--color-danger); }
.kpi-icon.orange { background: var(--color-warning-bg); color: var(--color-warning); }
.kpi-icon.cyan { background: var(--color-info-bg); color: var(--color-info); }

.kpi-content { flex: 1; min-width: 0; }
.kpi-value { font-size: 1.7rem; font-weight: 800; line-height: 1; color: var(--text-primary); letter-spacing: -1px; }
.kpi-label { font-size: 0.82rem; color: var(--text-secondary); margin-top: 4px; font-weight: 500; }

/* ============================================
   TABLES
   ============================================ */
.table-wrapper { overflow-x: auto; }

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

thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: var(--bg-input);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-primary);
    vertical-align: middle;
}

tbody tr { transition: var(--transition); }
tbody tr:hover { background: var(--color-primary-light); }
tbody tr:last-child td { border-bottom: none; }

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }
.badge-secondary { background: rgba(100,116,139,0.1); color: var(--text-secondary); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-main);
    font-size: 0.88rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-icon { width: 34px; height: 34px; padding: 0; justify-content: center; border-radius: 8px; }
.btn-icon.btn-sm { width: 30px; height: 30px; }

.btn-group { display: flex; gap: 6px; align-items: center; }

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-input);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

textarea.form-control { min-height: 80px; resize: vertical; }

.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-check input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: var(--color-primary);
}

/* ============================================
   ALERTS PANEL
   ============================================ */
.alerts-panel { margin-bottom: 24px; }

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 18px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
    font-size: 0.88rem;
}

.alert-item.alert-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.alert-item.alert-warning { background: var(--color-warning-bg); color: #946200; }
.alert-item.alert-info { background: var(--color-info-bg); color: var(--color-info); }

[data-theme="dark"] .alert-item.alert-warning { color: var(--color-warning); }

.alert-item i { margin-top: 2px; font-size: 1rem; flex-shrink: 0; }
.alert-item strong { font-weight: 650; }

/* ============================================
   FLASH MESSAGES
   ============================================ */
.flash-container { padding: 16px 28px 0; }

.flash-msg {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.flash-success { background: var(--color-success-bg); color: var(--color-success); }
.flash-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.flash-warning { background: var(--color-warning-bg); color: #946200; }
.flash-info { background: var(--color-info-bg); color: var(--color-info); }

.flash-close {
    margin-left: auto;
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    padding: 4px;
}
.flash-close:hover { opacity: 1; }

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   TABS
   ============================================ */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.tab-count {
    font-size: 0.75rem;
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 700;
}

/* ============================================
   PASSWORD FIELD
   ============================================ */
.password-field {
    display: flex;
    align-items: center;
    gap: 6px;
}

.password-mask {
    font-family: var(--font-mono);
    letter-spacing: 2px;
    color: var(--text-secondary);
}

.password-value {
    font-family: var(--font-mono);
    font-size: 0.88rem;
}

.password-actions .btn-icon {
    width: 28px; height: 28px;
    font-size: 0.75rem;
}

/* ============================================
   CHARTS
   ============================================ */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.chart-container { padding: 20px; }
.chart-container canvas { max-height: 280px; }

/* ============================================
   INFO GRID
   ============================================ */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 14px;
}

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

.info-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 20px;
}

.pagination a, .pagination span {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.pagination a:hover { background: var(--color-primary-light); border-color: var(--color-primary); color: var(--color-primary); }
.pagination .active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.3; }
.empty-state p { font-size: 1rem; margin-bottom: 16px; }

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.filter-bar .form-control { width: auto; min-width: 160px; padding: 8px 12px; font-size: 0.85rem; }
.filter-bar input[type="text"] { min-width: 260px; }

/* ============================================
   MODAL CONFIRM
   ============================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.show { display: flex; }

.modal-box {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.modal-box h3 { font-size: 1.1rem; margin-bottom: 12px; }
.modal-box p { color: var(--text-secondary); margin-bottom: 20px; }

.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-wrapper {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a2332 0%, #2d3a4d 50%, #1a2332 100%);
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.login-card .sidebar-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    border-radius: 16px;
    padding: 6px;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.login-card .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.login-card .form-group { text-align: left; }

.login-card .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    margin-top: 8px;
}

/* ============================================
   ERROR PAGES
   ============================================ */
.error-page {
    text-align: center;
    padding: 80px 24px;
}

.error-page .error-code {
    font-size: 6rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    letter-spacing: -4px;
}

.error-page p { color: var(--text-secondary); font-size: 1.1rem; margin: 12px 0 24px; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: flex; }
    .kpi-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

@media (max-width: 640px) {
    .page-content { padding: 16px; }
    .topbar { padding: 0 16px; }
    .page-title { font-size: 1.3rem; }
    .kpi-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .kpi-card { padding: 14px; }
    .kpi-value { font-size: 1.4rem; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-bar .form-control { min-width: 100%; }
    .chart-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; align-items: flex-start; }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-primary { color: var(--color-primary); }
.font-mono { font-family: var(--font-mono); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.w-100 { width: 100%; }

.tab-btn.tab-danger { color: var(--color-danger); }
.tab-btn.tab-danger.active { border-bottom-color: var(--color-danger); color: var(--color-danger); }
.tab-btn.tab-danger:hover { color: var(--color-danger); }
.tab-count-danger { background: var(--color-danger-bg); color: var(--color-danger); }