/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* Brand */
    --brand: #E11D2A;
    --brand-dark: #B0151F;
    --brand-light: #FDE8E9;

    /* Supporting Colors */
    --success: #16A34A;
    --warning: #F59E0B;
    --danger: var(--brand);
    --info: #2563EB;

    /* Backgrounds */
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --surface-secondary: #F5F5F5;

    /* Text */
    --text: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --text-inverse: #FFFFFF;

    /* Borders */
    --border: #E5E7EB;
    --border-light: #F3F4F6;

    /* Navigation */
    --nav-bg: #FFFFFF;
    --nav-active: var(--brand);
    --nav-hover: var(--brand-light);

    /* Buttons */
    --button-primary: var(--brand);
    --button-primary-hover: var(--brand-dark);
    --button-primary-text: #FFFFFF;
    --button-secondary: #FFFFFF;
    --button-secondary-hover: #F8FAFC;
    --button-secondary-text: var(--brand);

    /* Cards */
    --card-bg: #FFFFFF;
    --card-hover: #FFF6F6;

    /* Links */
    --link: var(--brand);
    --link-hover: var(--brand-dark);

    /* Forms */
    --input-bg: #FFFFFF;
    --input-border: #D1D5DB;
    --input-focus: var(--brand);

    /* Badge */
    --badge-bg: var(--brand-light);
    --badge-text: var(--brand-dark);

    /* Progress */
    --progress-bg: #F3F4F6;
    --progress-fill: var(--brand);

    /* Table Hover */
    --table-hover: var(--brand-light);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,.05);
    --shadow-md: 0 6px 20px rgba(0,0,0,.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,.10);

    /* Motion */
    --transition-fast: .15s ease;
    --transition: .25s ease;
    --transition-slow: .35s ease;

    /* Layout */
    --container: 1280px;
    
    /* Priorities */
    --priority-critical: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --priority-high: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    --priority-medium: linear-gradient(135deg, #eab308 0%, #ca8a04 100%);
    --priority-low: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --priority-none: linear-gradient(135deg, #64748b 0%, #475569 100%);
    
    /* Statuses */
    --status-pending: #f59e0b;
    --status-progress: #3b82f6;
    --status-completed: #10b981;
    --status-deferred: #8b5cf6;
    --status-cancelled: #ef4444;
    --status-archived: #6b7280;
}

[data-theme="dark"] {
    --background: #0F172A;
    --surface: #1E293B;
    --surface-secondary: #273549;

    --card-bg: #1E293B;
    --card-hover: #2A3A4F;

    --text: #F9FAFB;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;

    --border: #334155;

    --nav-bg: #111827;

    --input-bg: #1E293B;
    --input-border: #334155;

    --link: #FF6B76;
    --link-hover: #FF8A93;

    --badge-bg: #4A1117;
    --badge-text: #FFD9DC;

    --progress-bg: #334155;
    
    --table-hover: #4A1117;
}

/* Global Rules */
html {
    font-size: var(--font-size-base);
}

body {
    background: var(--background);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: var(--line-height);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* Minimum Touch Targets */
button,
.btn,
input,
select,
textarea,
a {
    min-height: 44px;
    min-width: 44px;
}

/* Prevent inline body anchors from layout expansion */
p a, td a, .inline-link {
    min-height: auto;
    min-width: auto;
}

/* Links */
a {
    color: var(--link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--link-hover);
}

/* Global Bootstrap overrides for Brand theme */
.bg-primary {
    background-color: var(--brand) !important;
}

.text-primary {
    color: var(--brand) !important;
}

/* Buttons System */
.btn-primary, .btn-premium {
    background: var(--button-primary) !important;
    border: none !important;
    color: var(--button-primary-text) !important;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: 14px !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover, .btn-premium:hover {
    background: var(--button-primary-hover) !important;
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-1px);
}

.btn-secondary, .btn-outline-secondary {
    background: var(--button-secondary) !important;
    border: 1px solid var(--brand) !important;
    color: var(--button-secondary-text) !important;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: 14px !important;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-secondary:hover, .btn-outline-secondary:hover {
    background: var(--button-secondary-hover) !important;
    color: var(--button-secondary-text) !important;
}

.btn-danger {
    background-color: var(--brand) !important;
    border-color: var(--brand) !important;
    color: var(--text-inverse) !important;
    border-radius: 14px !important;
}

.btn-danger:hover {
    background-color: var(--brand-dark) !important;
    border-color: var(--brand-dark) !important;
}

/* Progress Bars */
.progress {
    background-color: var(--progress-bg) !important;
    border-radius: var(--radius-sm);
    height: 8px;
}

.progress-bar {
    background-color: var(--progress-fill) !important;
}

/* Cards & Panels */
.card, .glass-panel, .glass-panel-premium {
    background: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all var(--transition);
}

.card:hover, .glass-panel:hover, .glass-panel-premium:hover {
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-2px) !important;
}

/* Sidebar Navigation */
.sidebar-wrapper {
    width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all var(--transition);
    border-right: 1px solid var(--border);
    background: var(--nav-bg) !important;
    display: flex !important;
    flex-direction: column;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    margin-bottom: 0.25rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-nav-item:hover {
    background: var(--nav-hover) !important;
    color: var(--brand-dark) !important;
}

.sidebar-nav-item.active {
    background: var(--nav-active) !important;
    color: var(--text-inverse) !important;
}

.sidebar-nav-item i {
    width: 24px;
    font-size: 1.1rem;
    margin-right: 10px;
}

/* Main Spacing Layout */
.main-content-wrapper {
    min-height: 100vh;
    padding: 2rem;
    transition: all var(--transition);
}

/* Priority Badges */
.badge-priority {
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    color: var(--text-inverse);
    text-transform: uppercase;
}

.priority-critical { background: var(--priority-critical); }
.priority-high { background: var(--priority-high); }
.priority-medium { background: var(--priority-medium); }
.priority-low { background: var(--priority-low); }
.priority-none { background: var(--priority-none); }

/* Forms Configuration */
.form-control, .form-select {
    background-color: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    color: var(--text) !important;
    border-radius: var(--radius-md) !important;
    padding: 0.6rem 0.9rem;
    transition: all var(--transition-fast);
    font-size: 16px !important; /* Prevents mobile viewport zooming */
    min-height: 44px;
}

.form-control:focus, .form-select:focus {
    outline: none !important;
    border-color: var(--input-focus) !important;
    box-shadow: 0 0 0 3px rgba(225, 29, 42, 0.15) !important;
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

/* Floating Action Button (FAB) */
.fab-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--brand) !important;
    color: var(--text-inverse) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md) !important;
    z-index: 1000;
    text-decoration: none;
    transition: all var(--transition-slow) cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fab-btn:hover {
    transform: rotate(90deg) scale(1.08);
    box-shadow: var(--shadow-lg) !important;
    background: var(--brand-dark) !important;
    color: var(--text-inverse) !important;
}

/* Task Cards */
.task-card {
    border-left: 4px solid #6c757d;
    transition: all var(--transition-fast) ease;
}

.task-card.priority-critical { border-left-color: #ef4444; }
.task-card.priority-high { border-left-color: #f97316; }
.task-card.priority-medium { border-left-color: #eab308; }
.task-card.priority-low { border-left-color: #3b82f6; }
.task-card.priority-none { border-left-color: #64748b; }

.task-card.completed {
    opacity: 0.65;
}
.task-card.completed .task-title {
    text-decoration: line-through;
}

/* Drag-over indicator */
.drag-over {
    border: 2px dashed var(--brand) !important;
    background: rgba(225, 29, 42, 0.08) !important;
}

/* Tables Styling */
.table {
    color: var(--text) !important;
    background-color: var(--surface) !important;
    border-color: var(--border) !important;
    vertical-align: middle;
}

.table thead th {
    background-color: var(--surface-secondary) !important;
    color: var(--text) !important;
    border-bottom: 2px solid var(--border) !important;
}

.table tbody tr:hover {
    background-color: var(--table-hover) !important;
}

/* Alerts Block overrides */
.alert {
    border-radius: var(--radius-md);
    padding: 1rem;
    font-size: 0.9rem;
}

.alert-info {
    background-color: rgba(37, 99, 235, 0.1) !important;
    border: 1px solid var(--info) !important;
    color: var(--info) !important;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1) !important;
    border: 1px solid var(--warning) !important;
    color: var(--warning) !important;
}

.alert-success {
    background-color: rgba(22, 163, 74, 0.1) !important;
    border: 1px solid var(--success) !important;
    color: var(--success) !important;
}

.alert-danger, .alert-error {
    background-color: var(--badge-bg) !important;
    border: 1px solid var(--brand) !important;
    color: var(--badge-text) !important;
}

/* Responsive elements */
@media (min-width: 992px) {
    .sidebar-wrapper {
        transform: none !important;
    }
    .main-content-wrapper {
        margin-left: 260px !important;
    }
}

@media (max-width: 991.98px) {
    .sidebar-wrapper {
        transform: translateX(-100%) !important;
        width: 250px;
    }
    
    .sidebar-wrapper.show {
        transform: translateX(0) !important;
        box-shadow: 0 0 25px rgba(0, 0, 0, 0.5) !important;
    }
    
    .main-content-wrapper {
        margin-left: 0 !important;
        padding: 1rem;
        padding-bottom: 5rem;
    }

    header.app-header-mobile {
        position: sticky;
        top: 0;
        z-index: 990;
        background: var(--background) !important;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        margin-top: -1rem;
        padding-top: 1rem;
        padding-bottom: 1rem !important;
        border-bottom: 1px solid var(--border) !important;
    }
}

/* Mobile Bottom Navigation Menu: active only under 768px */
@media (max-width: 767.98px) {
    .mobile-bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--nav-bg) !important;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-top: 1px solid var(--border);
        z-index: 999;
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
    
    .mobile-nav-item {
        color: var(--text-secondary);
        text-decoration: none;
        display: flex;
        flex-direction: column;
        align-items: center;
        font-size: 0.7rem;
        min-height: 44px;
        justify-content: center;
    }
    
    .mobile-nav-item.active, .mobile-nav-item:hover {
        color: var(--brand);
        background: var(--brand-light) !important;
        border-radius: var(--radius-sm);
        padding: 4px 8px;
    }
    
    .mobile-nav-item i {
        font-size: 1.25rem;
        margin-bottom: 2px;
    }
    
    .fab-btn {
        bottom: 4.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
    }
}

/* Small Viewport Full-Width Cards stack */
@media (max-width: 575.98px) {
    .card, .glass-panel, .glass-panel-premium {
        border-radius: 12px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
    }
    .container-fluid {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
    }
    
    /* Make action buttons full-width on mobile while preserving compact icon-only control buttons */
    .btn:not(.btn-link):not(.btn-icon):not(.task-check-btn):not(.favorite-toggle-btn):not(.task-delete-btn) {
        width: 100% !important;
        display: inline-flex !important;
        justify-content: center !important;
    }
    
    /* Ensure tables are horizontally scrollable on mobile */
    table, .table {
        display: block !important;
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Make search box full width on mobile */
    .d-flex.justify-content-between.flex-wrap > .input-group {
        width: 100% !important;
    }
}

/* Smooth active tap states on buttons & links */
.btn:active, .btn-premium:active, .sidebar-nav-item:active, .mobile-nav-item:active {
    transform: scale(0.96) !important;
    opacity: 0.85;
    transition: transform 0.1s ease, opacity 0.1s ease;
}

/* Skeleton Loading Screens */
.skeleton {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.05) 75%);
    background-size: 200% 100%;
    animation: loading-skeleton 1.5s infinite;
}

@keyframes loading-skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Premium UI/UX Modernizations */
.glass-panel-premium {
    background: var(--card-bg) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border) !important;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.glass-panel-premium:hover {
    border-color: var(--border) !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Custom Checklist Checkbox styling */
.custom-checkbox-input {
    appearance: none;
    background-color: var(--input-bg);
    border: 1.5px solid var(--input-border);
    width: 20px;
    height: 20px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    vertical-align: middle;
}

.custom-checkbox-input:checked {
    background: var(--brand);
    border-color: var(--brand);
}

.custom-checkbox-input:checked::after {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--text-inverse);
    font-size: 11px;
}

/* Premium Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Micro-interaction Helper */
.hover-card {
    transition: all var(--transition);
}

.hover-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Fade-in Animation keyframes */
.animate-fade-in {
    animation: premium-fade-in 0.4s ease forwards;
}

@keyframes premium-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Icon-only button touch target styling */
.btn-icon {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    min-height: 44px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: var(--radius-md) !important;
}