/* Building Manager – Κοινόχρηστα */

:root {
    --bm-primary: #2563eb;
    --bm-primary-hover: #1d4ed8;
    --bm-primary-light: #eff6ff;
    --bm-nav-dark: #1e3a5f;
    --bm-link: #2563eb;
    --bm-border: #e5e7eb;
    --bm-radius: 0.5rem;
    --bm-radius-sm: 0.375rem;
    --bm-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --bm-shadow-hover: 0 4px 12px rgba(0,0,0,0.1);
}

/* Base */
body {
    background-color: #f8fafc;
    color: #1e293b;
}

/* ========== Buttons ========== */
.btn {
    border-radius: var(--bm-radius-sm);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: transform 0.05s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--bm-shadow);
}
.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--bm-primary);
    border-color: var(--bm-primary);
    box-shadow: var(--bm-shadow);
}
.btn-primary:hover {
    background-color: var(--bm-primary-hover);
    border-color: var(--bm-primary-hover);
    box-shadow: var(--bm-shadow-hover);
}

.btn-outline-primary {
    border-width: 1.5px;
}
.btn-outline-primary:hover {
    background-color: var(--bm-primary-light);
}

.btn-outline-secondary,
.btn-secondary {
    border-radius: var(--bm-radius-sm);
}
.btn-secondary:hover {
    background-color: #64748b;
    border-color: #64748b;
}

.btn-success {
    box-shadow: var(--bm-shadow);
}
.btn-success:hover {
    box-shadow: var(--bm-shadow-hover);
}

.btn-warning {
    color: #1e293b;
}
.btn-warning:hover {
    color: #1e293b;
}

.btn-danger,
.btn-outline-danger {
    border-radius: var(--bm-radius-sm);
}
.btn-outline-danger:hover {
    background-color: #fef2f2;
}

/* Link-style buttons inside tables (Διαγραφή κτλ) */
.btn-link {
    text-decoration: none;
    border-radius: var(--bm-radius-sm);
}
.btn-link:hover {
    text-decoration: underline;
    transform: none;
}
.btn-link.text-danger:hover {
    background-color: #fef2f2;
}

/* Small buttons */
.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.875rem;
}

/* ========== Header / Nav ========== */
.navbar.bg-primary,
.navbar.bg-bm-dark {
    background-color: var(--bm-nav-dark) !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.navbar-brand {
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.navbar-brand::before {
    content: "🏢";
    font-size: 1.25rem;
}
.nav-link {
    font-weight: 500;
    border-radius: var(--bm-radius-sm);
    padding: 0.5rem 0.75rem !important;
}
.nav-link:hover {
    background-color: rgba(255,255,255,0.1);
}
.nav-link.active {
    border-bottom: 2px solid #fff;
    font-weight: 600;
}
.navbar .btn-outline-light {
    border-radius: var(--bm-radius-sm);
}
.navbar .btn-outline-light:hover {
    background-color: rgba(255,255,255,0.2);
    color: #fff;
}

/* ========== Main ========== */
main.container {
    min-height: calc(100vh - 120px);
}

/* Page title block */
.d-flex.justify-content-between.align-items-center.mb-3 h2,
main h2:first-of-type {
    font-size: 1.5rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0;
}

/* ========== Cards / Content blocks ========== */
.content-card {
    background: #fff;
    border-radius: var(--bm-radius);
    box-shadow: var(--bm-shadow);
    border: 1px solid var(--bm-border);
    overflow: hidden;
}

.content-section {
    margin-bottom: 2rem;
}
.content-section:last-of-type {
    margin-bottom: 1rem;
}

/* ========== Tables ========== */
.table-responsive {
    border-radius: var(--bm-radius);
    overflow: hidden;
    box-shadow: var(--bm-shadow);
    background: #fff;
    border: 1px solid var(--bm-border);
}

.table {
    border-collapse: collapse;
    margin-bottom: 0;
}
.table thead th {
    background-color: #f8fafc;
    border-bottom: 2px solid var(--bm-border);
    font-weight: 600;
    color: #475569;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}
.table tbody td {
    border-bottom: 1px solid #f1f5f9;
    padding: 0.75rem 1rem;
    vertical-align: middle;
}
.table tbody tr:last-child td {
    border-bottom: none;
}
.table tbody tr:hover {
    background-color: #f8fafc;
}
.table tfoot th {
    border-top: 2px solid var(--bm-border);
    background-color: #f1f5f9 !important;
    font-weight: 600;
    padding: 0.75rem 1rem;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: #fafafa;
}
.table-striped tbody tr:hover {
    background-color: #f1f5f9 !important;
}

.amount, .table .amount, td.amount {
    font-weight: 600;
    color: inherit;
}
.table tfoot .amount {
    font-weight: 700;
}

.table a:not(.btn) {
    color: var(--bm-link);
    font-weight: 500;
    text-decoration: none;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}
.table a:not(.btn):hover {
    text-decoration: none;
    background-color: var(--bm-primary-light);
}

/* ========== Alerts ========== */
.alert {
    border-radius: var(--bm-radius-sm);
    border: 1px solid transparent;
    padding: 0.75rem 1rem;
}
.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}
.alert-warning {
    background-color: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}
.alert-danger {
    background-color: #fef2f2;
    border-color: #fecaca;
}

/* ========== Forms ========== */
.form-control,
.form-select {
    border-radius: var(--bm-radius-sm);
    border-color: var(--bm-border);
    padding: 0.5rem 0.75rem;
}
.form-control:focus,
.form-select:focus {
    border-color: var(--bm-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.form-label {
    font-weight: 500;
    color: #475569;
    margin-bottom: 0.35rem;
}

/* ========== Badges ========== */
.badge {
    border-radius: 9999px;
    padding: 0.35em 0.65em;
    font-weight: 500;
}

/* ========== Section titles ========== */
.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #0f172a;
}
.section-title .section-icon {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Period badge */
.period-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background-color: var(--bm-primary-light);
    color: var(--bm-primary-hover);
    border-radius: 9999px;
    font-weight: 500;
    font-size: 0.95rem;
}

/* Period tabs */
.period-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.period-tabs .btn-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: var(--bm-radius-sm);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--bm-border);
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.period-tabs .btn-tab.active {
    background-color: var(--bm-primary);
    color: #fff;
    border-color: var(--bm-primary);
    box-shadow: var(--bm-shadow);
}
.period-tabs .btn-tab:not(.active) {
    background-color: #fff;
    color: #64748b;
    border-color: var(--bm-border);
}
.period-tabs .btn-tab:not(.active):hover {
    background-color: #f8fafc;
    border-color: var(--bm-primary);
    color: var(--bm-primary);
}

.add-expense-link {
    color: var(--bm-link);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.5rem;
    border-radius: var(--bm-radius-sm);
}
.add-expense-link:hover {
    color: var(--bm-primary-hover);
    text-decoration: none;
    background-color: var(--bm-primary-light);
}

/* ========== Footer ========== */
.site-footer,
footer {
    border-top: 1px solid var(--bm-border);
    margin-top: 2rem;
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
}
.site-footer small,
footer small {
    color: #64748b;
    font-size: 0.875rem;
}

/* ========== Back link ========== */
.back-link {
    color: #64748b;
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}
.back-link:hover {
    color: var(--bm-primary);
}