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

:root {
    --fo-primary: #3b82f6;
    --fo-primary-hover: #2563eb;
    --fo-dark: #0f172a;
    --fo-dark-surface: #1e293b;
    --fo-bg: #f8fafc;
    --fo-card-bg: #ffffff;
    --fo-border: #e2e8f0;
    --fo-text: #0f172a;
    --fo-text-muted: #64748b;
    --fo-success: #10b981;
    --fo-warning: #f59e0b;
    --fo-danger: #ef4444;
    
    --fo-radius-sm: 8px;
    --fo-radius: 14px;
    --fo-radius-lg: 20px;
    
    --fo-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --fo-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    --fo-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.14);

    --fo-touch-min: 48px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--fo-bg);
    color: var(--fo-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* Header & Top Navigation */
header.app-header {
    background: var(--fo-dark);
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    gap: 16px;
    flex-wrap: wrap;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 1.3rem;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.app-brand span {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.top-nav a, .top-nav button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--fo-radius-sm);
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 42px;
    white-space: nowrap;
}

.top-nav a:hover, .top-nav button:hover {
    color: #ffffff;
    background: var(--fo-dark-surface);
}

.top-nav a.active {
    color: #ffffff;
    background: var(--fo-primary);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.user-badge-container {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    padding: 6px 12px;
    border-radius: var(--fo-radius-sm);
    font-size: 0.85rem;
    color: #e2e8f0;
}

.logout-btn {
    background: rgba(239, 68, 68, 0.15) !important;
    color: #fca5a5 !important;
    border: 1px solid rgba(239, 68, 68, 0.3) !important;
}

.logout-btn:hover {
    background: var(--fo-danger) !important;
    color: #ffffff !important;
}

/* Container */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 16px;
}

@media (max-width: 768px) {
    header.app-header {
        padding: 8px 12px;
        gap: 10px;
    }
    .top-nav {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
        justify-content: flex-start;
    }
    .container {
        padding: 10px;
    }
}

/* Cards & Layout */
.card {
    background: var(--fo-card-bg);
    border-radius: var(--fo-radius);
    padding: 20px;
    box-shadow: var(--fo-shadow);
    border: 1px solid var(--fo-border);
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--fo-border);
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--fo-dark);
}

/* Big Touch Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--fo-touch-min);
    padding: 12px 20px;
    border-radius: var(--fo-radius-sm);
    font-size: 1rem;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary {
    background-color: var(--fo-primary);
    color: #ffffff;
}
.btn-primary:hover {
    background-color: var(--fo-primary-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-success {
    background-color: var(--fo-success);
    color: #ffffff;
}
.btn-success:hover {
    filter: brightness(0.95);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background-color: var(--fo-danger);
    color: #ffffff;
}
.btn-danger:hover {
    filter: brightness(0.95);
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--fo-text);
    border: 1px solid var(--fo-border);
}
.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-block {
    width: 100%;
}

/* Forms & Controls */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fo-text);
    margin-bottom: 6px;
}

.form-control, input, select, textarea {
    width: 100%;
    min-height: var(--fo-touch-min);
    padding: 12px 14px;
    border-radius: var(--fo-radius-sm);
    border: 1px solid var(--fo-border);
    background-color: #ffffff;
    font-size: 1rem;
    color: var(--fo-text);
    font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus, input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--fo-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: var(--fo-radius-sm);
    margin-bottom: 16px;
    font-size: 0.95rem;
    font-weight: 600;
}

.alert-success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}

.alert-danger {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.alert-info {
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

/* Shared Table Tile Component Grid */
.table-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-top: 10px;
    transition: all 0.2s ease-in-out;
}

.table-tile {
    background: #ffffff;
    border: 2px solid var(--fo-border);
    border-radius: var(--fo-radius-sm);
    padding: 12px 6px;
    min-height: 76px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--fo-dark);
    user-select: none;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.table-tile:active {
    transform: scale(0.96);
}

.table-tile.selected {
    border-color: var(--fo-primary);
    background: #eff6ff;
    color: var(--fo-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.table-tile.status-ready {
    border-top: 6px solid var(--fo-success);
    background: #f0fdf4;
}

.table-tile.status-working {
    border-top: 6px solid var(--fo-warning);
    background: #fffbe6;
}

.table-tile.status-to_pay, .table-tile.status-unpaid {
    border-top: 6px solid var(--fo-danger);
    background: #fef2f2;
}

.table-tile.status-free, .table-tile.status-open {
    border-top: 6px solid #cbd5e1;
    background: #ffffff;
}

.table-tile.is-merged-parent {
    box-shadow: 0 0 0 2px #f59e0b, 0 4px 12px rgba(245, 158, 11, 0.25);
}

.table-tile.is-merged-child {
    box-shadow: 0 0 0 2.5px #3b82f6, 0 4px 12px rgba(59, 130, 246, 0.25);
    background-color: #f0f9ff !important;
    border-left: 4px dashed #3b82f6;
}

/* User Dropdown Menu */
.user-menu-wrapper {
    position: relative;
    display: inline-block;
}

.user-badge-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 12px;
    border-radius: var(--fo-radius-sm);
    font-size: 0.85rem;
    color: #e2e8f0;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    user-select: none;
    min-height: 38px;
}

.user-badge-btn:hover, .user-menu-wrapper.active .user-badge-btn {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--fo-dark-surface);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--fo-radius-sm);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    min-width: 200px;
    z-index: 1000;
    display: none;
    flex-direction: column;
    overflow: hidden;
    padding: 4px 0;
}

.user-menu-wrapper.active .user-dropdown-menu {
    display: flex;
}

.user-dropdown-header {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: #94a3b8;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    color: #e2e8f0;
    text-decoration: none;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.user-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.user-dropdown-item.danger {
    color: #fca5a5;
}
.user-dropdown-item.danger:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ffffff;
}

/* Modal Dialog Component */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.active {
    display: flex !important;
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: #ffffff;
    border-radius: var(--fo-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 440px;
    overflow: hidden;
    transform: translateY(12px) scale(0.98);
    transition: transform 0.2s ease;
}

.modal-overlay.active .modal-card {
    transform: translateY(0) scale(1);
}

.modal-header {
    background: var(--fo-dark);
    color: #ffffff;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: #cbd5e1;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.modal-close-btn:hover {
    color: #ffffff;
}

.modal-body {
    padding: 20px;
}