/* Fakturia Dashboard Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --ink: #0a0a0f;
    --paper: #fafaf8;
    --accent: #2d5bf0;
    --accent-hover: #2248cc;
    --accent-soft: #e8eeff;
    --warm: #f5f0e8;
    --muted: #6b6b7b;
    --border: #e2e2e8;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --danger: #dc2626;
    --danger-soft: #fef2f2;
    --warning: #f59e0b;
    --warning-soft: #fef9c3;
    --sidebar-w: 260px;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.6;
}

/* Auth Screen */
.auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--paper) 0%, #f0eee5 100%);
}

.auth-box {
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

.auth-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 32px;
    letter-spacing: -1px;
    text-align: center;
    margin-bottom: 4px;
}

.auth-logo span { color: var(--accent); }

.auth-subtitle {
    text-align: center;
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 36px;
}

.auth-form h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.3px;
}

.auth-switch {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin-top: 16px;
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

/* Form Elements */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    background: var(--paper);
    color: var(--ink);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b6b7b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

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

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.form-error {
    color: var(--danger);
    font-size: 13px;
    margin-bottom: 12px;
    min-height: 18px;
}

.form-section {
    margin-bottom: 24px;
}

.form-section h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

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

.checkbox-group label {
    font-size: 14px;
    margin-bottom: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--paper);
    color: var(--ink);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: white;
    border-color: var(--accent);
}

.btn-danger {
    background: var(--danger-soft);
    color: var(--danger);
}

.btn-danger:hover {
    background: #fee2e2;
}

.btn-success {
    background: var(--success-soft);
    color: var(--success);
}

.btn-accent {
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid rgba(45, 91, 240, 0.2);
}

.btn-accent:hover {
    background: #d4dfff;
    border-color: var(--accent);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    padding: 8px 12px;
}

.btn-ghost:hover {
    background: var(--paper);
    color: var(--ink);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 8px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

/* App Shell */
.app-shell {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: var(--ink);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-brand {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 24px;
    letter-spacing: -0.5px;
    padding: 28px 28px 32px;
}

.sidebar-brand span { color: var(--accent); }

.sidebar-nav {
    flex: 1;
    padding: 0 12px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    color: #8888a0;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    margin-bottom: 4px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.06);
    color: white;
}

.nav-item.active {
    background: rgba(45,91,240,0.15);
    color: #93b4ff;
}

.nav-item svg {
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 20px 12px;
    border-top: 1px solid #2a2a3a;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: #8888a0;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.06);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-w);
    padding: 32px 40px;
    min-height: 100vh;
}

/* View Header */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.view-header h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.view-header .subtitle {
    font-size: 14px;
    color: var(--muted);
    margin-top: 4px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
}

.stat-card .label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-card .value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
}

.stat-card .value.accent { color: var(--accent); }
.stat-card .value.success { color: var(--success); }
.stat-card .value.danger { color: var(--danger); }
.stat-card .value.warning { color: var(--warning); }

/* Tables */
.table-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
}

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

.table-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 600;
}

.table-filters {
    display: flex;
    gap: 4px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--paper);
}

.filter-btn {
    padding: 6px 16px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: white;
    color: var(--ink);
}

.filter-btn.active {
    background: var(--accent-soft);
    color: var(--accent);
}

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

table thead th {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    font-weight: 600;
    padding: 14px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    background: var(--paper);
}

table tbody tr {
    transition: background 0.15s;
}

table tbody tr:hover {
    background: #fafafa;
}

table tbody td {
    padding: 14px 24px;
    font-size: 14px;
    border-bottom: 1px solid #f5f5f7;
}

table tbody td.right {
    text-align: right;
}

table tbody td.mono {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
}

.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--muted);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    color: var(--ink);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 20px;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-draft { background: #f0f0f2; color: var(--muted); }
.badge-sent { background: var(--accent-soft); color: var(--accent); }
.badge-paid { background: var(--success-soft); color: var(--success); }
.badge-overdue { background: var(--danger-soft); color: var(--danger); }
.badge-cancelled { background: #f0f0f2; color: var(--danger); }

/* Action Buttons in tables */
.action-btns {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
}

.action-btn {
    padding: 6px 10px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--muted);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.action-btn:hover {
    background: var(--paper);
    color: var(--ink);
}

.action-btn.danger:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,15,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 200;
    padding: 48px 24px;
    overflow-y: auto;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 100%;
    max-width: 640px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    animation: modalIn 0.2s ease;
}

.modal-content.wide {
    max-width: 800px;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(-16px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: var(--paper);
    color: var(--muted);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

.modal-body {
    padding: 28px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 28px;
    border-top: 1px solid var(--border);
}

/* Invoice Form Line Items */
.line-items-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.line-items-table th {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    font-weight: 600;
    padding: 8px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.line-items-table td {
    padding: 6px 4px;
    vertical-align: top;
}

.line-items-table input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    background: var(--paper);
    outline: none;
}

.line-items-table input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.line-items-table .col-desc { width: 40%; }
.line-items-table .col-qty { width: 12%; }
.line-items-table .col-unit { width: 12%; }
.line-items-table .col-price { width: 18%; }
.line-items-table .col-total { width: 14%; }
.line-items-table .col-action { width: 4%; }

.line-total {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: 13px;
    padding: 8px 10px;
    color: var(--muted);
}

.remove-line-btn {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: #ccc;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4px;
}

.remove-line-btn:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

.invoice-totals {
    display: flex;
    justify-content: flex-end;
    padding: 16px 0;
}

.invoice-totals-box {
    width: 260px;
}

.totals-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
}

.totals-row .label { color: var(--muted); }
.totals-row .value {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
}

.totals-row.grand-total {
    border-top: 2px solid var(--ink);
    margin-top: 8px;
    padding-top: 12px;
    font-size: 18px;
}

.totals-row.grand-total .label { color: var(--ink); font-weight: 600; }
.totals-row.grand-total .value { font-weight: 700; }

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--ink);
    color: white;
    padding: 14px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    z-index: 300;
    animation: toastIn 0.3s ease;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Spin animation for loading */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Clickable rows */
.clickable-row {
    cursor: pointer;
}

/* Responsive */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .form-row-3 {
        grid-template-columns: 1fr;
    }
}