/* Modern Claude-inspired Theme for NeoQR */
/* Base Variables */
:root {
    /* Light Mode Colors (Claude-inspired) */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-hover: #f5f6f7;
    --border-color: #e5e7eb;
    --border-focus: #d1d5db;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --link-color: #4f7396;
    --link-hover: #3d5a75;

    /* Accent Colors - Sanfter und weniger knallig */
    --accent-primary: #5b8cb8;
    --accent-success: #4a9e6f;
    --accent-warning: #d4924e;
    --accent-danger: #c85a5f;
    --accent-info: #52a0b3;

    /* Button Colors - subtle und harmonisch */
    --btn-primary-bg: #5b8cb8;
    --btn-primary-hover: #4a7399;
    --btn-secondary-bg: transparent;
    --btn-secondary-hover: var(--bg-hover);
    --btn-secondary-border: var(--border-color);

    /* Shadows - very subtle */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Borders & Radius */
    --border-radius: 8px;
    --border-radius-sm: 6px;
    --border-radius-lg: 12px;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --bg-hover: #2d3748;
    --border-color: #374151;
    --border-focus: #4b5563;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --link-color: #7da8ca;
    --link-hover: #a3c4d9;
    --accent-primary: #6b9fc7;
    --accent-success: #5dae82;
    --accent-warning: #d9a362;
    --accent-danger: #d47176;
    --accent-info: #6bb3c5;
    --btn-primary-bg: #5b8cb8;
    --btn-primary-hover: #6b9fc7;
    --btn-secondary-bg: transparent;
    --btn-secondary-hover: var(--bg-hover);
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px -1px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

h1 { font-size: 1.875rem; font-weight: 700; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

/* Layout */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Header/Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgb(from var(--bg-secondary) r g b / 0.82);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) 0;
    transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
    backdrop-filter: blur(10px);
    box-shadow: 0 .25rem 1rem rgba(0, 0, 0, 0.072);
    /*box-shadow: var(--shadow-sm);*/
}

.navbar-brand {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    letter-spacing: -0.01em;
}

.navbar-nav {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
    display: flex;
    gap: var(--space-xs);
}

.navbar-nav .nav-item {
    list-style: none;
}

.navbar-nav .nav-link {
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-sm);
    transition: all 0.15s ease;
    font-weight: 500;
    font-size: 0.9375rem;
    text-decoration: none;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xs);
    margin-bottom: var(--space-lg);
    overflow: hidden;
}

.card-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--text-primary);
}

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

/* Buttons - Small and Subtle like claude.ai */
.btn {
    padding: 0.4375rem 0.875rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 0.8125rem;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--btn-primary-hover);
    border-color: var(--btn-primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary:hover {
    background-color: var(--btn-secondary-hover);
    border-color: var(--border-focus);
    color: var(--text-primary);
}

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

.btn-danger:hover {
    background-color: #b91c1c;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.3125rem 0.625rem;
    font-size: 0.75rem;
}

.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
}

/* Forms - Compact and Clean */
.form-control {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    padding: 0.4375rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.5;
    transition: all 0.15s ease;
}

.form-control:focus {
    background-color: var(--bg-primary);
    border-color: var(--accent-primary);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-label {
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    display: block;
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
}

/* Tables - Modern and Clean */
.table {
    background-color: var(--bg-primary) !important;
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
    margin-bottom: var(--space-lg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    color: var(--text-primary);
}

.table thead th {
    background-color: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color);
    padding: 0.625rem var(--space-md);
    font-weight: 600;
    text-align: left;
    font-size: 0.8125rem;
    color: var(--text-secondary) !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody td {
    padding: 0.75rem var(--space-md);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-primary);
    background-color: var(--bg-primary) !important;
}

.table tbody tr {
    transition: background-color 0.15s ease;
    background-color: var(--bg-primary) !important;
}

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

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

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

/* Dark Mode Table Overrides */
[data-theme="dark"] .table {
    background-color: var(--bg-primary) !important;
    --bs-table-bg: var(--bg-primary) !important;
    --bs-table-striped-bg: rgba(255, 255, 255, 0.02) !important;
    --bs-table-active-bg: var(--bg-hover) !important;
    --bs-table-hover-bg: var(--bg-hover) !important;
    --bs-table-color: var(--text-primary) !important;
    --bs-table-border-color: var(--border-color) !important;
}

[data-theme="dark"] .table thead th {
    background-color: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table tbody tr {
    background-color: var(--bg-primary) !important;
}

[data-theme="dark"] .table tbody td {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table tbody tr:hover,
[data-theme="dark"] .table tbody tr:hover td {
    background-color: var(--bg-hover) !important;
}

/* Bootstrap Table Variants for Dark Mode */
[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.02) !important;
    --bs-table-accent-bg: rgba(255, 255, 255, 0.02) !important;
}

[data-theme="dark"] .table-hover > tbody > tr:hover > * {
    background-color: var(--bg-hover) !important;
    --bs-table-accent-bg: var(--bg-hover) !important;
}

/* Override Bootstrap's default white backgrounds with higher specificity */
[data-theme="dark"] .table > :not(caption) > * > * {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-bottom-color: var(--border-color) !important;
}

[data-theme="dark"] .table > thead {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table > thead > tr > th {
    background-color: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table > tbody > tr > td,
[data-theme="dark"] .table > tbody > tr > th {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

/* Table Responsive Wrapper */
.table-responsive {
    background-color: transparent;
    border-radius: var(--border-radius);
}

[data-theme="dark"] .table-responsive {
    background-color: transparent;
}

/* Charts */
canvas {
    max-width: 100%;
    width: 100% !important;
    display: block;
}

.chart-container {
    position: relative;
    width: 100%;
    padding: var(--space-md) 0;
}

/* Chart Card Improvements */
.card canvas {
    margin: 0 auto;
}

/* Chart Specific Heights */
.card-body canvas {
    min-height: 250px;
    max-height: 400px;
    height: 300px;
}

/* Line/Bar Charts (Zeitreihen) - höher */
canvas[id*="scans"],
canvas[id*="timeline"],
canvas[id*="Chart"] {
    min-height: 280px;
    height: 320px;
}

/* Pie/Doughnut Charts - quadratisch */
canvas[id*="Pie"],
canvas[id*="device"],
canvas[id*="browser"],
canvas[id*="country"] {
    min-height: 280px;
    max-height: 320px;
    height: 300px;
}

/* Kompakte Pie Charts im Grid Layout (z.B. 4 nebeneinander) */
canvas[id*="global"] {
    min-height: 200px;
    max-height: 250px;
    height: 220px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .card-body canvas {
        min-height: 220px;
        height: 250px;
    }

    canvas[id*="scans"],
    canvas[id*="timeline"],
    canvas[id*="Chart"] {
        min-height: 220px;
        height: 260px;
    }

    canvas[id*="Pie"],
    canvas[id*="device"],
    canvas[id*="browser"],
    canvas[id*="country"] {
        min-height: 240px;
        height: 260px;
    }

    /* Globale Charts auf Mobile werden größer (volle Breite) */
    canvas[id*="global"] {
        min-height: 240px;
        height: 260px;
    }
}

/* Badges - Subtle */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1875rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 9999px;
    line-height: 1.4;
    letter-spacing: 0.025em;
}

.badge-success {
    background-color: rgba(5, 150, 105, 0.1);
    color: var(--accent-success);
}

.badge-danger {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--accent-danger);
}

.badge-warning {
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--accent-warning);
}

.badge-info {
    background-color: rgba(8, 145, 178, 0.1);
    color: var(--accent-info);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    text-align: center;
    transition: all 0.15s ease;
}

.stat-box:hover {
    border-color: var(--border-focus);
    box-shadow: var(--shadow-sm);
}

.stat-box h3 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--accent-primary);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-box p {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--space-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    transition: all 0.15s ease;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    border-color: var(--border-focus);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    fill: var(--text-primary);
}

/* Alerts */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius);
    border-left: 3px solid;
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
}

.alert-success {
    background-color: rgba(5, 150, 105, 0.1);
    border-color: var(--accent-success);
    color: var(--accent-success);
}

.alert-danger {
    background-color: rgba(220, 38, 38, 0.1);
    border-color: var(--accent-danger);
    color: var(--accent-danger);
}

.alert-info {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--accent-info);
    color: var(--accent-info);
}

.alert-warning {
    background-color: rgba(217, 119, 6, 0.1);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

/* Utilities */
.text-muted {
    color: var(--text-muted) !important;
}

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

.text-center {
    text-align: center;
}

.d-flex {
    display: flex !important;
}

.gap-2 {
    gap: var(--space-sm) !important;
}

.align-items-center {
    align-items: center !important;
}

.justify-content-between {
    justify-content: space-between !important;
}

/* Spacing Utilities */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }
.p-3 { padding: var(--space-lg); }
.p-4 { padding: var(--space-xl); }

/* Responsive */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .navbar-nav {
        flex-direction: column;
        padding-top: var(--space-md);
        gap: var(--space-xs);
    }

    .container {
        padding: 0 var(--space-md);
    }

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

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

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