/* ─── Base Reset & Typography ─────────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --brand-primary: #4F46E5;
    --brand-primary-dark: #3730A3;
    --brand-primary-light: #EEF2FF;
    --brand-secondary: #06B6D4;
    --brand-accent: #10B981;
    --brand-gradient: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    --brand-gradient-subtle: linear-gradient(135deg, #EEF2FF 0%, #ECFEFF 100%);
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --bg-body: #F3F4F6;
    --bg-card: #FFFFFF;
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --radius: 10px;
    --radius-lg: 14px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ─── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 50;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-brand-logo {
    height: 34px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13.5px;
    font-weight: 500;
    padding: 7px 14px;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-links a:hover {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.nav-user {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 5px 12px;
    background: var(--border-light);
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}
.nav-user:hover {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.settings-form {
    max-width: 400px;
    margin-top: 0.75rem;
}
.settings-form .form-group {
    margin-bottom: 1rem;
}
.settings-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 14px;
}
.settings-form input[type="text"],
.settings-form input[type="password"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.btn-logout {
    color: #EF4444 !important;
    font-weight: 500 !important;
}
.btn-logout:hover {
    background: #FEF2F2 !important;
}

.btn-mfa {
    color: #D97706 !important;
    border: 1px solid #FDE68A;
    background: #FFFBEB !important;
}

/* ─── Container ───────────────────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ─── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 14px;
    font-weight: 500;
}

.alert-success { background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.alert-error { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }
.alert-warning { background: #FFFBEB; color: #92400E; border: 1px solid #FDE68A; }

/* ─── Filter Bar ──────────────────────────────────────────────────────────── */
.filter-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

/* ─── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover { background: #F9FAFB; border-color: #D1D5DB; box-shadow: var(--shadow-sm); }
.btn-primary { background: var(--brand-primary); color: #fff; border-color: var(--brand-primary); }
.btn-primary:hover { background: var(--brand-primary-dark); box-shadow: 0 2px 8px rgba(79,70,229,0.3); }
.btn-success { background: var(--brand-accent); color: #fff; border-color: var(--brand-accent); }
.btn-success:hover { background: #059669; }
.btn-danger { background: #EF4444; color: #fff; border-color: #EF4444; }
.btn-danger:hover { background: #DC2626; }
.btn-warning { background: #F59E0B; color: #fff; border-color: #F59E0B; }
.btn-warning:hover { background: #D97706; }
.btn-secondary { background: var(--border-light); color: var(--text-secondary); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; padding: 12px; font-size: 15px; }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ─── Dashboard Header ───────────────────────────────────────────────────── */
.dashboard h1 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* ─── Stats Grid ──────────────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}
.stat-card:hover { box-shadow: var(--shadow-md); }

.stat-card-link {
    text-decoration: none;
    cursor: pointer;
    border-bottom: 3px solid transparent;
}
.stat-card-link:hover {
    border-bottom: 3px solid var(--brand-primary);
    transform: translateY(-2px);
    transition: all 0.2s;
}
.stat-card-link.stat-info:hover { border-bottom-color: var(--brand-primary); }
.stat-card-link.stat-success:hover { border-bottom-color: var(--brand-accent); }
.stat-card-link.stat-warning:hover { border-bottom-color: #F59E0B; }

.stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-value {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-info .stat-value { color: var(--brand-primary); }
.stat-success .stat-value { color: var(--brand-accent); }
.stat-warning .stat-value { color: #F59E0B; }

/* ─── Sections ────────────────────────────────────────────────────────────── */
.section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.section h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-title-warning { color: #F59E0B !important; }

/* ─── Tables ──────────────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    padding: 10px 12px;
    background: #F9FAFB;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border-bottom: 2px solid var(--border-color);
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: all 0.15s;
}

.data-table th.sortable:hover {
    background: #EEF2FF;
    color: var(--brand-primary);
}

.data-table th.sorted-asc,
.data-table th.sorted-desc {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.sort-arrow {
    font-size: 10px;
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.data-table tbody tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: #FAFBFF; }

.amount { font-weight: 600; font-family: 'SF Mono', 'Fira Code', monospace; }
.memo-cell { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; color: var(--text-secondary); }
.desc-cell { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gl-code { font-size: 12px; }
.actions-cell { white-space: nowrap; display: flex; gap: 4px; }

.row-rejected { background: #FFFBEB; }
.rejection-note { color: #D97706; font-size: 13px; font-style: italic; }

/* ─── Badges ──────────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-pending { background: #F3F4F6; color: #6B7280; }
.badge-coded { background: #EEF2FF; color: var(--brand-primary); }
.badge-approved { background: #ECFDF5; color: #065F46; }
.badge-rejected { background: #FEF2F2; color: #991B1B; }
.badge-success { background: #ECFDF5; color: #065F46; }

/* ─── Login ───────────────────────────────────────────────────────────────── */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-gradient);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(6,182,212,0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(79,70,229,0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, -1%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-brand-logo {
    width: 220px;
    height: auto;
    margin-bottom: 16px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-card .btn-primary {
    background: var(--brand-gradient);
    border: none;
    padding: 12px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(79,70,229,0.3);
}
.login-card .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(79,70,229,0.4);
    transform: translateY(-1px);
}

/* ─── Forms ───────────────────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
    background: var(--bg-card);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group small {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 1.5rem;
}

/* ─── Upload Zone ─────────────────────────────────────────────────────────── */
.upload-zone {
    border: 2px dashed #D1D5DB;
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    margin-bottom: 1rem;
    background: #FAFBFF;
}

.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--brand-primary);
    background: var(--brand-primary-light);
}

.upload-zone input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    cursor: pointer;
}

.upload-icon { font-size: 36px; margin-bottom: 8px; }
.upload-text { font-size: 15px; color: var(--text-primary); font-weight: 500; }
.upload-hint { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.upload-zone-small {
    border: 2px dashed #D1D5DB;
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    background: #FAFBFF;
}

.upload-zone-small:hover, .upload-zone-small.drag-over {
    border-color: var(--brand-primary);
    background: var(--brand-primary-light);
}

.upload-zone-small input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    cursor: pointer;
}

.upload-zone-small p {
    font-size: 14px;
    color: var(--text-secondary);
}

.file-name {
    font-size: 14px;
    color: var(--brand-accent);
    font-weight: 500;
    margin-bottom: 1rem;
    text-align: center;
}

/* ─── Code Transaction Page ───────────────────────────────────────────────── */
.back-link {
    display: inline-block;
    font-size: 14px;
    color: var(--brand-primary);
    text-decoration: none;
    margin-bottom: 1.5rem;
    font-weight: 500;
}
.back-link:hover { text-decoration: underline; }

.transaction-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.txn-info h1 { font-size: 22px; margin-bottom: 4px; }
.txn-details { font-size: 14px; color: var(--text-secondary); }
.txn-memo { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.txn-amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: right;
}

.credit-tag {
    display: block;
    font-size: 11px;
    color: var(--brand-accent);
    font-weight: 600;
}

.code-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.existing-receipt {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.existing-receipt a {
    font-size: 13px;
    color: var(--brand-primary);
}

/* ─── Searchable GL Dropdown ──────────────────────────────────────────────── */
.search-dropdown {
    display: none;
    position: absolute;
    z-index: 100;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 250px;
    overflow-y: auto;
    width: calc(100% - 2px);
    box-shadow: var(--shadow-lg);
}

.form-group { position: relative; }

.search-option {
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-light);
}

.search-option:hover, .search-option-active {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.search-option strong {
    color: var(--brand-primary);
    font-weight: 700;
}

.search-no-results {
    padding: 12px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

/* ─── Split Transaction ───────────────────────────────────────────────────── */
.split-toggle {
    margin-bottom: 1.5rem;
    padding: 12px 16px;
    background: #FAFBFF;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--brand-primary);
}

.split-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.split-header h3 { font-size: 16px; }

.split-total {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.split-line {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 12px;
    background: #FAFBFF;
}

.split-line .form-row {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 12px;
}

.split-line-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.split-line-num {
    font-size: 13px;
    font-weight: 600;
    color: var(--brand-primary);
}

.split-details-row td {
    padding: 0 12px 12px !important;
}

.split-details-box {
    background: #FAFBFF;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 16px;
}

.split-details-box strong {
    display: block;
    font-size: 13px;
    margin-bottom: 8px;
}

.split-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.split-table th {
    text-align: left;
    padding: 6px 8px;
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
}

.split-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-light);
}

/* ─── Batch Results ───────────────────────────────────────────────────────── */
.batch-results {
    margin-top: 1rem;
    padding: 1rem;
    background: #FAFBFF;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.batch-results h3 {
    font-size: 15px;
    margin-bottom: 8px;
}

.match-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.match-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    transition: all 0.15s;
}

.match-file { font-weight: 500; color: var(--text-primary); }
.match-arrow { color: var(--text-muted); }
.match-txn { color: var(--text-secondary); flex: 1; }

.match-item .match-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--brand-primary);
}

.match-confirmed {
    background: #ECFDF5 !important;
    border-color: #A7F3D0 !important;
    opacity: 0.7;
}

.batch-actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.batch-actions-bar h3 { margin: 0; }

/* ─── Modal ───────────────────────────────────────────────────────────────── */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-lg);
}

.modal-content h3 {
    margin-bottom: 1rem;
}

/* ─── MFA Setup ───────────────────────────────────────────────────────────── */
.mfa-setup {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.mfa-setup h1 { margin-bottom: 0.5rem; }
.mfa-setup > p { color: var(--text-secondary); margin-bottom: 1.5rem; }

.qr-container {
    display: inline-block;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.qr-container img { width: 200px; height: 200px; }

.manual-key {
    margin-bottom: 1.5rem;
}

.manual-key p { font-size: 13px; color: var(--text-secondary); }
.manual-key code {
    display: inline-block;
    padding: 6px 12px;
    background: var(--border-light);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-top: 4px;
}

.mfa-setup form { text-align: left; }

/* ─── Empty State ─────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 15px;
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 8px;
        padding: 0.75rem 1rem;
        height: auto;
    }
    .nav-links { flex-wrap: wrap; gap: 6px; }
    .container { padding: 1rem; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .transaction-header { flex-direction: column; gap: 12px; }
    .data-table { font-size: 12px; }
    .data-table th, .data-table td { padding: 8px 6px; }
    .login-card { margin: 1rem; padding: 2rem; }
}