/* ==========================================================================
   Ideentagebuch (https://ideentagebuch.kajomat.eu/)
   Design-System in Blautönen mit White-Mode (Light) & Dark-Mode
   ========================================================================== */

:root,
[data-theme="light"] {
    --bg-body: #f0f6ff;
    --bg-gradient: radial-gradient(circle at top left, #e0edff 0%, #f0f6ff 45%, #f8fbff 100%);
    --bg-surface: #ffffff;
    --bg-surface-alt: #f5f9ff;
    --bg-surface-hover: #ebf3ff;
    --bg-input: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.88);
    --bg-comment: #f3f8ff;

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;

    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: rgba(37, 99, 235, 0.1);
    --accent: #0284c7;

    --border-color: #cfe0fc;
    --border-subtle: #e2ecfc;
    --shadow-sm: 0 2px 8px rgba(30, 58, 138, 0.05);
    --shadow-md: 0 10px 28px rgba(30, 58, 138, 0.08);
    --shadow-lg: 0 16px 40px rgba(30, 58, 138, 0.12);

    --success-bg: #ecfdf5;
    --success-text: #065f46;
    --success-border: #a7f3d0;

    --error-bg: #fef2f2;
    --error-text: #991b1b;
    --error-border: #fecaca;

    --warning-bg: #fffbeb;
    --warning-text: #92400e;
    --warning-border: #fde68a;
}

[data-theme="dark"] {
    --bg-body: #070e1d;
    --bg-gradient: radial-gradient(circle at top left, #0f2147 0%, #091326 50%, #060c18 100%);
    --bg-surface: #0f1b33;
    --bg-surface-alt: #132240;
    --bg-surface-hover: #182b50;
    --bg-input: #0a1428;
    --bg-header: rgba(11, 22, 43, 0.9);
    --bg-comment: #0b162b;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-soft: rgba(59, 130, 246, 0.18);
    --accent: #38bdf8;

    --border-color: #1e3a6e;
    --border-subtle: #172d56;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 18px 46px rgba(0, 0, 0, 0.6);

    --success-bg: rgba(16, 185, 129, 0.14);
    --success-text: #6ee7b7;
    --success-border: rgba(16, 185, 129, 0.35);

    --error-bg: rgba(239, 68, 68, 0.15);
    --error-text: #fca5a5;
    --error-border: rgba(239, 68, 68, 0.35);

    --warning-bg: rgba(245, 158, 11, 0.15);
    --warning-text: #fcd34d;
    --warning-border: rgba(245, 158, 11, 0.35);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-body);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.25s ease, color 0.25s ease;
}

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

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-header);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 55%, #0ea5e9 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-weight: 800;
    font-size: 1.12rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.95rem;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.18s ease;
    border: 1px solid transparent;
}

.nav-link:hover {
    background: var(--bg-surface-hover);
    color: var(--primary);
}

.nav-link.active {
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.nav-badge {
    font-size: 0.72rem;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 700;
}

.nav-link.active .nav-badge {
    background: rgba(255, 255, 255, 0.22);
    color: #ffffff;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.theme-toggle {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.18s ease;
}

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

.user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.38rem 0.75rem;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    font-size: 0.84rem;
    color: var(--text-secondary);
}

.user-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb, #0284c7);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.78rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   Main Container & Layout
   ========================================================================== */

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.75rem 1.25rem 3.5rem;
}

.auth-container {
    max-width: 480px;
    margin: 2.5rem auto;
    padding: 0 1.25rem;
}

.page-hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 55%, #0284c7 100%);
    color: #ffffff;
    border-radius: 18px;
    padding: 1.65rem 2rem;
    margin-bottom: 1.65rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.page-hero h1 {
    margin: 0 0 0.3rem 0;
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.page-hero p {
    margin: 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.95rem;
}

.hero-meta {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.24);
    padding: 0.6rem 1rem;
    border-radius: 12px;
    font-size: 0.86rem;
    font-weight: 600;
    backdrop-filter: blur(6px);
}

/* ==========================================================================
   Cards, Panels & Grid
   ========================================================================== */

.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.35rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.1rem;
    flex-wrap: wrap;
}

.card-title {
    margin: 0;
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-subtitle {
    margin: 0.2rem 0 0;
    font-size: 0.86rem;
    color: var(--text-muted);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.35rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.15rem;
}

.stat-box {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-value {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}

.stat-label {
    font-size: 0.83rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* ==========================================================================
   Forms, Inputs & Buttons
   ========================================================================== */

.form-group {
    margin-bottom: 1.15rem;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.42rem;
    color: var(--text-primary);
}

.form-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.form-control {
    width: 100%;
    padding: 0.72rem 0.95rem;
    font-size: 0.96rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: 11px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3.5px var(--primary-soft);
}

textarea.diary-textarea {
    min-height: 240px;
    line-height: 1.7;
    font-size: 1.02rem;
    resize: vertical;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.68rem 1.25rem;
    font-size: 0.92rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.18s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1e40af, #1d4ed8);
    color: #ffffff;
    transform: translateY(-1px);
}

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

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

.btn-danger {
    background: var(--error-bg);
    color: var(--error-text);
    border-color: var(--error-border);
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 0.4rem 0.78rem;
    font-size: 0.82rem;
    border-radius: 8px;
}

/* ==========================================================================
   Kategorien-Auswahl & Badges
   ========================================================================== */

.category-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.category-check-label {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.85rem;
    background: var(--bg-surface-alt);
    border: 1.5px solid var(--border-color);
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.16s ease;
    user-select: none;
}

.category-check-label:hover {
    border-color: var(--primary);
    background: var(--bg-surface-hover);
}

.category-check-label input[type="checkbox"] {
    accent-color: var(--primary);
    width: 15px;
    height: 15px;
    margin: 0;
}

.category-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.38rem;
    padding: 0.25rem 0.72rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ==========================================================================
   Ideeneinträge & Kommentarspalte
   ========================================================================== */

.entry-card {
    position: relative;
    overflow: hidden;
}

.entry-meta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding-bottom: 0.85rem;
    margin-bottom: 0.95rem;
    border-bottom: 1px solid var(--border-subtle);
}

.entry-author {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.entry-date-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.82rem;
    padding: 0.3rem 0.75rem;
    border-radius: 8px;
}

.entry-title {
    margin: 0 0 0.6rem 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.entry-content {
    white-space: pre-wrap;
    font-size: 0.98rem;
    line-height: 1.72;
    color: var(--text-primary);
    background: var(--bg-surface-alt);
    padding: 1.1rem 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
    margin-bottom: 1rem;
}

/* Kommentarspalte unter jedem Eintrag */
.comments-section {
    margin-top: 1.15rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
}

.comments-title {
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin: 0 0 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-bottom: 0.85rem;
}

.comment-item {
    background: var(--bg-comment);
    border: 1px solid var(--border-subtle);
    border-left: 3.5px solid var(--primary);
    border-radius: 10px;
    padding: 0.7rem 0.95rem;
    font-size: 0.9rem;
}

.comment-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.comment-author {
    font-weight: 700;
    color: var(--primary);
}

.comment-body {
    white-space: pre-wrap;
    color: var(--text-primary);
}

.comment-form {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
}

.comment-form input[type="text"],
.comment-form textarea {
    flex: 1;
}

/* ==========================================================================
   Alerts, Tables & Footer
   ========================================================================== */

.alert {
    padding: 0.95rem 1.2rem;
    border-radius: 12px;
    margin-bottom: 1.35rem;
    font-weight: 500;
    font-size: 0.93rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

.alert-error {
    background: var(--error-bg);
    color: var(--error-text);
    border: 1px solid var(--error-border);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
    border: 1px solid var(--warning-border);
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--bg-surface-alt);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.code-pill {
    font-family: 'JetBrains Mono', Consolas, monospace;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 0.25rem 0.6rem;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.filter-bar {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 1.25rem;
}

.empty-state {
    text-align: center;
    padding: 2.5rem 1.5rem;
    color: var(--text-muted);
}

.site-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.82rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: stretch;
    }
    .main-nav {
        justify-content: center;
    }
    .header-actions {
        justify-content: space-between;
    }
    .comment-form {
        flex-direction: column;
    }
    .comment-form .btn {
        width: 100%;
    }
}