/* ============================================================
   Erinnerung V2 — Modern Reminder Tool
   ============================================================ */

:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #3730a3;
    --primary-bg: #eef2ff;
    --surface: #ffffff;
    --bg: #f1f5f9;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-focus: #a5b4fc;
    --success: #059669;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.05);
    --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* --- Navbar --- */
.navbar {
    background: var(--primary);
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(79,70,229,0.3);
}

.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.nav-brand {
    color: #fff;
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.02em;
}

.nav-brand svg { width: 22px; height: 22px; }

.nav-links {
    display: flex;
    gap: 0.25rem;
}

.nav-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
}

/* --- Container --- */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem;
    width: 100%;
}

main.container { flex: 1; }

/* --- Cards --- */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    background: var(--bg);
}

.card-header svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; }

.card-body { padding: 1.25rem; }

/* --- Forms --- */
.form-group { margin-bottom: 1rem; }

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* --- Quick Links (Datum/Zeit Shortcuts) --- */
.shortcuts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.375rem;
}

.shortcut {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    color: var(--primary);
    background: var(--primary-bg);
    border: 1px solid transparent;
    border-radius: 1rem;
    cursor: pointer;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition);
    user-select: none;
}

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.575rem 1.1rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    border: 1.5px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    line-height: 1.4;
    white-space: nowrap;
}

.btn svg { width: 16px; height: 16px; }

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

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

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: transparent;
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-success {
    background: var(--success-bg);
    color: var(--success);
    border-color: transparent;
}
.btn-success:hover { background: var(--success); color: #fff; }

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8125rem;
}

.btn-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* --- Alerts --- */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert svg { width: 18px; height: 18px; flex-shrink: 0; }

.alert-success { background: var(--success-bg); color: var(--success); }
.alert-error { background: var(--danger-bg); color: var(--danger); }

/* --- Table --- */
.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead th {
    text-align: left;
    padding: 0.625rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

thead th a {
    color: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

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

tbody td {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tbody tr:hover { background: var(--primary-bg); }
tbody tr:last-child td { border-bottom: none; }

td.actions {
    white-space: nowrap;
    text-align: right;
}

td.actions form { display: inline; }

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-overdue { background: var(--danger-bg); color: var(--danger); }

/* --- Email tags --- */
.email-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.email-tag {
    font-size: 0.75rem;
    background: var(--bg);
    padding: 0.15rem 0.45rem;
    border-radius: 0.25rem;
    color: var(--text-secondary);
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* --- Standalone pages (Setup, Login) --- */
.standalone {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--bg) 50%, #f8fafc 100%);
}

.standalone-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    overflow: hidden;
}

.standalone-card.narrow { max-width: 420px; }
.standalone-card.wide { max-width: 640px; }

.standalone-header {
    background: var(--primary);
    color: #fff;
    padding: 2rem 2rem 1.5rem;
    text-align: center;
}

.standalone-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.standalone-header p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.standalone-body { padding: 2rem; }

.standalone-section {
    margin-bottom: 1.75rem;
}

.standalone-section h3 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-bg);
}

/* --- Admin header bar --- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
}

/* --- Stats mini --- */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    text-align: center;
}

.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

/* --- Confirm Dialog --- */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(2px);
}

.confirm-overlay.active { display: flex; }

.confirm-box {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    max-width: 380px;
    width: 100%;
    text-align: center;
}

.confirm-box p {
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
}

.confirm-box .btn-group { justify-content: center; }

/* --- Mobile Cards (table replacement) --- */
.mobile-cards { display: none; }

.m-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.m-card-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.2rem 0;
}

.m-card-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    font-weight: 600;
}

.m-card-value {
    font-size: 0.875rem;
    color: var(--text);
    text-align: right;
}

.m-card-desc {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.m-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.m-card-actions .btn { flex: 1; justify-content: center; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-toggle { display: block; }

    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 0.5rem;
        box-shadow: var(--shadow-md);
    }

    .nav-links.open { display: flex; }

    .nav-links a {
        padding: 0.65rem 1rem;
        border-radius: var(--radius-sm);
    }

    .navbar { position: relative; }

    .container { padding: 1rem; }

    .form-row { grid-template-columns: 1fr; }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .standalone-body { padding: 1.25rem; }
    .standalone-header { padding: 1.5rem 1.25rem 1.25rem; }

    /* Table → Cards */
    .table-wrap { display: none; }
    .mobile-cards { display: block; }

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

@media (max-width: 400px) {
    .stats-row { grid-template-columns: 1fr; }
    .btn-group { flex-direction: column; }
    .btn-group .btn { justify-content: center; }
}