@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #eef2ff;
    --primary-glow: rgba(99, 102, 241, 0.15);
    --success: #10b981;
    --success-light: #ecfdf5;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --info: #3b82f6;
    --info-light: #eff6ff;
    --bg: #f8fafc;
    --bg-secondary: #f1f5f9;
    --white: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --sidebar-bg: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --sidebar-text: #94a3b8;
    --sidebar-hover: rgba(255,255,255,0.06);
    --sidebar-active-bg: rgba(99, 102, 241, 0.12);
    --sidebar-active-text: #818cf8;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --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(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.admin-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.admin-wrapper { display: flex; min-height: 100vh; }

.admin-sidebar {
    width: 272px;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    border-right: 1px solid rgba(255,255,255,0.06);
}

.sidebar-header {
    padding: 28px 24px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-header h2 {
    color: #fff;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-header h2::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    border-radius: 8px;
    flex-shrink: 0;
}

.sidebar-header p {
    font-size: 0.8rem;
    color: var(--sidebar-text);
    margin-top: 6px;
    font-weight: 400;
    padding-left: 42px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.sidebar-nav a:hover {
    background: var(--sidebar-hover);
    color: #e2e8f0;
}

.sidebar-nav a.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
    font-weight: 600;
}

.sidebar-nav a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.nav-icon {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-divider {
    height: 1px;
    background: rgba(255,255,255,0.06);
    margin: 10px 14px;
}

.sidebar-section-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.3);
    padding: 12px 14px 6px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.logout-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.logout-link:hover {
    background: rgba(239,68,68,0.1);
    color: #f87171;
}

.admin-main {
    flex: 1;
    margin-left: 272px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-topbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: rgba(255,255,255,0.85);
}

.admin-topbar h1 {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text);
}

.topbar-right {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-right a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.topbar-right a:hover { color: var(--primary-dark); }

.topbar-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.8rem;
}

.admin-content {
    padding: 28px 32px;
    flex: 1;
    width: 100%;
}

.alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.dash-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.dash-stat {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dash-stat:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.2);
}

.dash-stat .stat-icon {
    font-size: 1.5rem;
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.dash-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.dash-stat .stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
    margin-top: 8px;
    letter-spacing: -0.025em;
}

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--white);
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    color: var(--text);
}

.card-body { padding: 24px; }

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.data-table th:first-child { border-radius: 8px 0 0 0; }
.data-table th:last-child { border-radius: 0 8px 0 0; }

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    color: var(--text-secondary);
}

.data-table td:first-child { color: var(--text); font-weight: 500; }

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.03);
}

.data-table tbody tr:last-child td { border-bottom: none; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge-success { background: var(--success-light); color: #065f46; }
.badge-danger { background: var(--danger-light); color: #991b1b; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-info { background: var(--info-light); color: #1e40af; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
    line-height: 1.4;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 1px 2px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: #fff;
    box-shadow: 0 1px 2px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 1px 2px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
}

.btn-warning { background: var(--warning); color: #fff; }

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

.btn-outline:hover {
    background: var(--bg-secondary);
    border-color: var(--text-light);
}

.btn-outline.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-sm { padding: 7px 14px; font-size: 0.8rem; border-radius: 8px; }
.btn-xs { padding: 5px 10px; font-size: 0.75rem; border-radius: 6px; }

.actions { display: flex; gap: 6px; }

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.84rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 0.875rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
    color: var(--text);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

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

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

.form-text {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 6px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p { font-size: 0.9rem; }

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(129, 140, 248, 0.08) 0%, transparent 50%);
    animation: loginBgPulse 8s ease-in-out infinite alternate;
}

@keyframes loginBgPulse {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-2%, 2%) scale(1.05); }
}

.login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.1);
    position: relative;
    z-index: 1;
}

.login-card h1 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text);
    letter-spacing: -0.03em;
}

.login-card p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 36px;
    font-size: 0.9rem;
}

.login-logo {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    border-radius: 16px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.filter-bar select, .filter-bar input {
    padding: 8px 14px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 0.84rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.filter-bar select:focus, .filter-bar input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
    outline: none;
}

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

.upload-preview {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 8px;
}

.upload-preview img {
    height: 50px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.report-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.report-card .label {
    font-size: 0.72rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.report-card .value {
    font-size: 1.5rem;
    font-weight: 800;
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.report-card .value.income { color: var(--success); }
.report-card .value.expense { color: var(--danger); }
.report-card .value.balance { color: var(--primary); }

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 10px;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.timeline-item:last-child { border-bottom: none; }

.timeline-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    background: var(--bg-secondary);
}

.profile-form { max-width: 600px; }

#addModal, .modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.6);
    backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

#addModal .card, .modal-overlay .card {
    width: 540px;
    max-width: 92vw;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 4px;
    border-radius: 8px;
    transition: var(--transition);
    line-height: 1;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

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

.dash-grid-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--border-light);
}

.dash-grid-item:last-child { border-bottom: none; }

.dash-grid-item .item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.dash-grid-item .item-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
}

.dash-grid-item .item-meta {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 4px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.green { background: var(--success); }
.status-dot.red { background: var(--danger); }
.status-dot.yellow { background: var(--warning); }
.status-dot.blue { background: var(--info); }

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

.page-header h2 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 6px;
}

.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

.tab-nav {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 10px;
    width: fit-content;
    margin-bottom: 20px;
}

.tab-nav a, .tab-nav button {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    color: var(--text-secondary);
    border: none;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.tab-nav a:hover, .tab-nav button:hover { color: var(--text); }

.tab-nav a.active, .tab-nav button.active {
    background: var(--white);
    color: var(--text);
    box-shadow: var(--shadow-xs);
    font-weight: 600;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item .info-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.info-item .info-value {
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 500;
}

@media (max-width: 1024px) {
    .dash-grid { grid-template-columns: 1fr; }
    .admin-content { padding: 20px 24px; }
}

@media (max-width: 768px) {
    .admin-sidebar { display: none; }
    .admin-main { margin-left: 0; }
    .admin-content { padding: 16px; }
    .admin-topbar { padding: 0 16px; }
    .form-row { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }
    .dash-stats { grid-template-columns: 1fr 1fr; }
    .report-summary { grid-template-columns: 1fr 1fr; }
    .dash-grid { grid-template-columns: 1fr; }
}