/* ===== BASE STYLES ===== */
:root {
    --primary: #1a3a5c;
    --primary-light: #2c5282;
    --danger: #c53030;
    --warning: #b7791f;
    --success: #2f855a;
    --info: #3182ce;
    --bg: #f7fafc;
    --card-bg: #ffffff;
    --text: #2d3748;
    --text-light: #718096;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.12);
    --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

/* ===== NAVBAR ===== */
.navbar {
    background: var(--primary);
    color: white;
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.nav-brand {
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    margin-right: 32px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    transition: all 0.2s;
    font-size: 13px;
}

.nav-link:hover, .nav-link.active {
    background: rgba(255,255,255,0.15);
    color: white;
}

.nav-search {
    margin-left: auto;
}

.nav-search input {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    padding: 6px 14px;
    border-radius: var(--radius);
    width: 240px;
    font-size: 13px;
}

.nav-search input::placeholder { color: rgba(255,255,255,0.6); }
.nav-search input:focus { outline: none; background: rgba(255,255,255,0.25); }

/* ===== MAIN ===== */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.page { display: none; }
.page.active { display: block; }

/* ===== PAGE HEADER ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

/* ===== STAT CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-light);
}

.stat-card.stat-danger { border-left-color: var(--danger); }
.stat-card.stat-warning { border-left-color: var(--warning); }
.stat-card.stat-info { border-left-color: var(--info); }
.stat-card.stat-success { border-left-color: var(--success); }

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-light);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
}

/* ===== CARDS ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

.card-body { padding: 20px; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* ===== TABLES ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    background: var(--primary);
    color: white;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    position: sticky;
    top: 0;
}

.data-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.data-table tr:hover { background: #f0f4f8; }
.data-table tr:nth-child(even) { background: #fafbfc; }
.data-table tr:nth-child(even):hover { background: #f0f4f8; }

/* ===== BUTTONS ===== */
.btn {
    padding: 8px 18px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary { background: var(--primary-light); color: white; }
.btn-primary:hover { background: var(--primary); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #cbd5e0; }
.btn-danger { background: var(--danger); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(44,82,130,0.1);
}

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

/* ===== SEVERITY BADGES ===== */
.badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-high { background: #fed7d7; color: var(--danger); }
.badge-medium { background: #fefcbf; color: var(--warning); }
.badge-low { background: #c6f6d5; color: var(--success); }
.badge-critical { background: #9b2c2c; color: white; }

/* ===== STATUS BADGES ===== */
.status-badge {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.status-active { background: #c6f6d5; color: var(--success); }
.status-proposed { background: #fefcbf; color: var(--warning); }
.status-defaulted { background: #fed7d7; color: var(--danger); }
.status-completed { background: #bee3f8; color: var(--info); }
.status-cancelled { background: #e2e8f0; color: var(--text-light); }

/* ===== MODAL ===== */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: var(--radius);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 24px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 12px; right: 16px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
}

/* ===== LOADING ===== */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .two-col { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .navbar { flex-wrap: wrap; height: auto; padding: 8px 16px; }
    .nav-links { order: 3; width: 100%; overflow-x: auto; }
}

/* ===== MONEY ===== */
.money { font-family: 'SF Mono', monospace; text-align: right; }
.positive { color: var(--danger); font-weight: 600; }
.negative { color: var(--success); }

/* ===== CHART ===== */
.chart-bar {
    display: inline-block;
    width: 20px;
    margin: 0 2px;
    background: var(--primary-light);
    border-radius: 3px 3px 0 0;
    vertical-align: bottom;
    min-height: 2px;
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 16px;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

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

/* ===== SECTION ===== */
.section { margin-bottom: 24px; }
.section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    padding-bottom: 4px;
    border-bottom: 2px solid var(--border);
}

/* ===== FLAG CARD ===== */
.flag-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flag-card.unresolved { border-left: 4px solid var(--danger); }
.flag-card.resolved { opacity: 0.5; }

/* ===== ARRANGEMENT FORM ===== */
.arrangement-form {
    background: #f0f4f8;
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

/* ===== EDIT MODAL ===== */
#edit-modal .modal-content {
    max-width: 700px;
}
#edit-modal h2 {
    margin-bottom: 16px;
    color: var(--primary);
}
#edit-modal .form-group {
    margin-bottom: 18px;
}
#edit-modal .form-group label {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
    display: block;
}
#edit-modal .form-group input,
#edit-modal .form-group select,
#edit-modal .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
}
#edit-modal .form-group input:focus,
#edit-modal .form-group select:focus,
#edit-modal .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(44,82,130,0.1);
}

/* ===== BLOCK SECTION ===== */
.block-summary-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

/* ===== RESPONSIVE UPDATES ===== */
@media (max-width: 768px) {
    .nav-links { flex-wrap: wrap; }
    .nav-link { font-size: 11px; padding: 6px 10px; }
    .modal-content { width: 95%; }
}

/* ===== TABS IN ACCOUNT DETAIL ===== */
#account-content .tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 16px;
}
#account-content .tab {
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}
#account-content .tab:hover { color: var(--primary); }
#account-content .tab.active { color: var(--primary); border-bottom-color: var(--primary); }
#account-content .tab-content { display: none; }

/* ===== STATS BAR ===== */
.stats-bar {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}
.stats-bar-inner {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.stat-mini {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    border-radius: var(--radius);
    background: #f0f4f8;
    min-width: 100px;
}
.stat-mini-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-light);
    letter-spacing: 0.5px;
}
.stat-mini-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}
.stat-mini-danger { background: #fff5f5; }
.stat-mini-danger .stat-mini-value { color: var(--danger); }

/* ===== FILTER BAR ===== */
.filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card-bg);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}
.filter-btn:hover { border-color: var(--primary-light); color: var(--primary); }
.filter-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ===== DASHBOARD GRID ===== */
.programme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* ===== UNIT DETAIL ===== */
#unit-content .tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 16px;
}
#unit-content .tab {
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}
#unit-content .tab:hover { color: var(--primary); }
#unit-content .tab.active { color: var(--primary); border-bottom-color: var(--primary); }
#unit-content .tab-content { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .stats-bar-inner { gap: 12px; }
    .stat-mini { min-width: 80px; padding: 6px 10px; }
    .stat-mini-value { font-size: 16px; }
    .filter-btn { font-size: 11px; padding: 4px 10px; }
}