/* Design System Variables */
:root {
    font-size: 70%; /* Default is 16px, so this makes it ~11.2px
    /* Color System */
    --bg-deepest: #0a0a0f;
    --bg-deeper: #12121a;
    --bg-deep: #16161e;
    --bg-base: #1a1a24;
    --bg-elevated: #20202c;
    --bg-highlight: #2a2a38;

    /* Accent Colors */
    --accent-primary: #a855f7;
    --accent-primary-hover: #9333ea;
    --accent-primary-muted: #7e22ce;
    --accent-secondary: #3b82f6;
    --accent-success: #10b981;
    --accent-danger: #ef4444;
    --accent-warning: #f59e0b;

    /* Gradients */
    --gradient-purple: linear-gradient(135deg, #a855f7 0%, #7928ca 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);

    /* Text Colors */
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.45);
    --text-muted: rgba(255, 255, 255, 0.3);

    /* Border Colors */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --border-strong: rgba(255, 255, 255, 0.16);

    /* Effects */
    --card-glow: 0 0 20px rgba(168, 85, 247, 0.15);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --glow-purple: 0 0 10px rgba(168, 85, 247, 0.5);
    --flagged-item: rgba(239, 68, 68, 0.08);

    /* Spacing - adjust by 0.7 multiplier */
    --space-2xs: 0.175rem; /* 0.25rem × 0.7 */
    --space-xs: 0.35rem;   /* 0.5rem × 0.7 */
    --space-sm: 0.525rem;  /* 0.75rem × 0.7 */
    --space-md: 0.7rem;    /* 1rem × 0.7 */
    --space-lg: 1.05rem;   /* 1.5rem × 0.7 */
    --space-xl: 1.4rem;    /* 2rem × 0.7 */
    --space-2xl: 2.1rem;   /* 3rem × 0.7 */

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

/* Base Styles */
body {
    background: var(--bg-deepest);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.text-gradient {
    background: var(--gradient-purple);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Text Color Utilities */
.text-secondary { color: var(--text-secondary) !important; }
.text-tertiary { color: var(--text-tertiary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--accent-primary) !important; }
.text-success { color: var(--accent-success) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-warning { color: var(--accent-warning) !important; }

/* Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-content {
    flex: 1;
    padding: var(--space-xl) 0;
}

/* Navbar */
.navbar {
    background-color: var(--bg-deeper);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-md) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 1020;
}

.navbar-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.navbar-brand i {
    color: var(--accent-primary);
    filter: drop-shadow(0 0 5px rgba(168, 85, 247, 0.7));
}

/* Cards */
.card {
    background: var(--bg-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--card-glow);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-lg);
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    background: transparent;
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.6rem 1.25rem;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255,255,255,0.1), rgba(255,255,255,0));
    opacity: 0;
    transition: opacity 0.2s ease;
}

.btn:hover::after { opacity: 1; }
.btn:active::after { background: rgba(0,0,0,0.1); }

/* Button variations */
.btn-primary {
    background: var(--gradient-purple);
    border: none;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.25);
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--gradient-purple);
    box-shadow: 0 6px 16px rgba(168, 85, 247, 0.35);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--gradient-success);
    border: none;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-success:hover, .btn-success:focus {
    background: var(--gradient-success);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--gradient-danger);
    border: none;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover, .btn-danger:focus {
    background: var(--gradient-danger);
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
}

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

.btn-outline-primary:hover, .btn-outline-primary:focus {
    color: white;
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Stats Cards */
.stats-card {
    background: var(--bg-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stats-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--card-glow);
    transform: translateY(-3px);
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-purple);
    opacity: 0.8;
}

.stats-card.purple::before { background: var(--gradient-purple); }
.stats-card.blue::before { background: var(--gradient-blue); }
.stats-card.green::before { background: var(--gradient-success); }
.stats-card.red::before { background: var(--gradient-danger); }
.stats-card.yellow::before { background: var(--gradient-warning); }

.stats-card .stat-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.stats-card .stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stats-card .stat-detail {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.stats-card .icon-bg {
    position: absolute;
    right: 10px;
    bottom: 10px;
    font-size: 4rem;
    opacity: 0.07;
    transform: rotate(-10deg);
}

/* Loading overlay */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.spinner-border {
    color: var(--accent-primary);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Mini Stats */
.mini-stats {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.mini-stat {
    background-color: var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.mini-stat-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--space-xs) 0;
}

.mini-stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

/* Modals */
.modal-content {
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
}

.modal-header, .modal-footer {
    border-color: var(--border-subtle);
}

/* Forms */
.form-control, .form-select {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-elevated);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 0.25rem rgba(168, 85, 247, 0.25);
    color: var(--text-primary);
}

.form-check-input {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-medium);
}

.form-check-input:checked {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Flash messages */
.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--accent-success);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

/* Responsive Design */
@media (max-width: 992px) {
    .card-stats .card-text { font-size: 2rem; }
    .card-stats .icon-bg { font-size: 5rem; }
}

@media (max-width: 768px) {
    .app-content { padding: var(--space-md) 0; }
    .mini-stats { flex-direction: column; gap: var(--space-md); }
    .mini-stat { width: 100%; }
}

@media (max-width: 576px) {
    .navbar { padding: var(--space-sm) var(--space-md); }
    .btn { padding: 0.5rem 1rem; font-size: 0.875rem; }
    .card-body { padding: var(--space-md); }
}