/* ===== CSS Custom Properties ===== */
:root {
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --bg-modal: #ffffff;
    --text: #0f172a;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --red: #ef4444;
    --yellow: #f59e0b;
    --green: #22c55e;
    --gray: #94a3b8;
    --snooze-bg: #f1f5f9;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-sm: 8px;
}

[data-theme="dark"] {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-modal: #1e293b;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --snooze-bg: #334155;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100dvh;
    padding-bottom: 80px;
    transition: background 0.3s, color 0.3s;
}

/* ===== Header ===== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow);
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 700;
}

.icon-btn {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    transition: background 0.2s;
}

.icon-btn:hover {
    background: rgba(255,255,255,0.15);
}

/* ===== Filter Bar ===== */
.filter-bar {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    flex-shrink: 0;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.filter-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ===== Toggle Completed ===== */
.toggle-completed {
    padding: 0 16px 8px;
}

.toggle-completed label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.toggle-completed input[type="checkbox"] {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
}

/* ===== Reminder List ===== */
.reminder-list {
    padding: 0 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 0;
    font-size: 0.9375rem;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 16px;
    font-size: 0.9375rem;
    line-height: 1.5;
}

/* ===== Reminder Card ===== */
.reminder-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--gray);
    transition: transform 0.15s, box-shadow 0.15s;
    cursor: pointer;
}

.reminder-card:active {
    transform: scale(0.985);
}

.reminder-card.status-overdue {
    border-left-color: var(--red);
}

.reminder-card.status-soon {
    border-left-color: var(--yellow);
}

.reminder-card.status-ok {
    border-left-color: var(--green);
}

.reminder-card.status-completed {
    border-left-color: var(--gray);
    opacity: 0.6;
}

.reminder-card.status-snoozed {
    border-left-color: var(--gray);
    background: var(--snooze-bg);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}

.card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.3;
    flex: 1;
}

.card-type-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    border-radius: 10px;
    flex-shrink: 0;
}

.card-type-badge.type-contact {
    background: #dbeafe;
    color: #1d4ed8;
}

.card-type-badge.type-task {
    background: #fef3c7;
    color: #92400e;
}

[data-theme="dark"] .card-type-badge.type-contact {
    background: #1e3a5f;
    color: #93c5fd;
}

[data-theme="dark"] .card-type-badge.type-task {
    background: #451a03;
    color: #fcd34d;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.card-status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.card-status-dot.dot-red { background: var(--red); }
.card-status-dot.dot-yellow { background: var(--yellow); }
.card-status-dot.dot-green { background: var(--green); }
.card-status-dot.dot-gray { background: var(--gray); }

/* ===== Checkbox Group (Kontaktwege) ===== */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text);
    cursor: pointer;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: background 0.15s, border-color 0.15s;
}

.checkbox-label:has(input:checked) {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.checkbox-label input {
    display: none;
}

/* ===== Contact Buttons ===== */
.contact-btns {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    transition: background 0.15s, transform 0.1s;
    white-space: nowrap;
}

.contact-btn:active {
    transform: scale(0.95);
}

.contact-btn:hover {
    background: var(--border);
}

.contact-btn svg {
    flex-shrink: 0;
}

.contact-btn-wa {
    color: #25d366;
    border-color: #25d366;
}

.contact-btn-wa:hover {
    background: #25d366;
    color: #fff;
}

.contact-btn-threema {
    color: #3fe669;
    border-color: #3fe669;
}

.contact-btn-threema:hover {
    background: #3fe669;
    color: #fff;
}

[data-theme="dark"] .contact-btn {
    background: var(--bg-card);
}

[data-theme="dark"] .contact-btn:hover {
    background: var(--border);
}

[data-theme="dark"] .contact-btn-wa:hover {
    background: #25d366;
    color: #fff;
}

[data-theme="dark"] .contact-btn-threema:hover {
    background: #3fe669;
    color: #fff;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.card-actions .btn {
    flex: 1;
    font-size: 0.8125rem;
    padding: 7px 10px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.96);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

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

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

.btn-done {
    background: var(--green);
    color: #fff;
}

.btn-snooze {
    background: var(--snooze-bg);
    color: var(--text);
    border: 1px solid var(--border);
    width: 100%;
    padding: 12px;
}

.btn-snooze:hover {
    background: var(--border);
}

/* ===== FAB ===== */
.fab {
    position: fixed;
    bottom: 24px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
    z-index: 90;
}

.fab:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.fab:active {
    transform: scale(0.95);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    transition: opacity 0.25s;
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    position: relative;
    background: var(--bg-modal);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 24px 20px;
    width: 100%;
    max-width: 480px;
    max-height: 85dvh;
    overflow-y: auto;
    animation: slideUp 0.25s ease-out;
}

.modal-small {
    max-width: 360px;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.modal-content h2 {
    font-size: 1.125rem;
    margin-bottom: 16px;
}

.modal-content h3 {
    font-size: 1rem;
    margin-bottom: 12px;
}

.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.modal-actions .btn {
    flex: 1;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.toggle-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.toggle-label input {
    width: 18px !important;
    height: 18px;
    accent-color: var(--primary);
}

/* ===== Settings ===== */
.settings-section {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.settings-section h3 {
    font-size: 0.9375rem;
    margin-bottom: 12px;
}

/* ===== Snooze Options ===== */
.snooze-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ===== Detail Modal ===== */
#detailBody {
    font-size: 0.9375rem;
    line-height: 1.6;
}

#detailBody .detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

#detailBody .detail-label {
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

#detailBody .detail-value {
    font-weight: 500;
    text-align: right;
}

/* ===== Utility ===== */
.hidden {
    display: none !important;
}

/* ===== Desktop ===== */
@media (min-width: 600px) {
    .reminder-list {
        max-width: 560px;
        margin: 0 auto;
    }

    .filter-bar {
        justify-content: center;
    }

    .toggle-completed {
        max-width: 560px;
        margin: 0 auto;
        padding-bottom: 8px;
    }

    .modal-content {
        border-radius: var(--radius);
        margin: auto;
    }

    .modal {
        align-items: center;
    }

    @keyframes slideUp {
        from { transform: translateY(20px); opacity: 0; }
        to { transform: translateY(0); opacity: 1; }
    }
}