/* ============================================================
   Terminbuchung — Main Stylesheet
   Font: Inter (modern, serifenlos, neutral)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
    --blue-50:  #eff6ff;
    --blue-100: #dbeafe;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;

    --slate-50:  #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;

    --green-50:  #f0fdf4;
    --green-100: #dcfce7;
    --green-600: #16a34a;

    --red-50:  #fef2f2;
    --red-100: #fee2e2;
    --red-600: #dc2626;

    --amber-100: #fef3c7;

    --radius-sm: 6px;
    --radius:    8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow:    0 4px 12px rgba(0,0,0,.07);
    --shadow-lg: 0 12px 28px rgba(0,0,0,.10);

    --transition: 140ms cubic-bezier(.4,0,.2,1);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--slate-50);
    color: var(--slate-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Typography ───────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: 'Inter', system-ui, sans-serif;
    font-weight: 600;
    line-height: 1.25;
    color: var(--slate-900);
    letter-spacing: -.02em;
}

h1 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; }
h2 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
h3 { font-size: 1rem; }

p { color: var(--slate-500); }

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────── */
.page-wrapper {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ── Header / Nav ─────────────────────────────────────── */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--slate-200);
    position: sticky;
    top: 0;
    z-index: 50;
}

.site-header .inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 58px;
    gap: 20px;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -.03em;
    text-decoration: none;
    white-space: nowrap;
}
.site-logo:hover { text-decoration: none; }

.site-nav { display: flex; gap: 4px; }
.nav-link {
    padding: 6px 14px;
    border-radius: var(--radius);
    font-size: .8125rem;
    font-weight: 500;
    color: var(--slate-500);
    transition: background var(--transition), color var(--transition);
}
.nav-link:hover { background: var(--slate-100); color: var(--slate-900); text-decoration: none; }
.nav-link.active { background: var(--slate-100); color: var(--slate-900); }

/* Header Icon */
.site-logo-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-header-icon {
    height: 36px;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .site-header-icon {
        height: 34px;
    }
}

/* Header Logo */
.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-header-logo {
    height: 48px;
    width: auto;
    object-fit: contain;
    margin-left: 20px;
}

@media (max-width: 768px) {
    .site-header-logo {
        height: 42px;      /* etwas kleiner auf Mobilgeräten */
    }
}

/* ── Hero Banner ──────────────────────────────────────── */
.hero {
    background: #fff;
    border-bottom: 1px solid var(--slate-200);
    padding: 44px 20px;
    text-align: center;
}
.hero .inner { max-width: 600px; margin: 0 auto; }
.hero h1 { color: var(--slate-900); margin-bottom: 8px; letter-spacing: -.03em; }
.hero p  { color: var(--slate-400); font-size: .9375rem; }

/* ── Appointment Grid ─────────────────────────────────── */
.appointments-section { padding: 40px 20px; }
.section-title { margin-bottom: 24px; }
.section-title h2 { margin-bottom: 4px; }

.appointments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.appt-card {
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}
.appt-card:hover { box-shadow: var(--shadow); transform: translateY(-1px); }

.appt-card-body { padding: 18px 20px; flex: 1; }
.appt-card-title {
    font-size: .9375rem;
    font-weight: 600;
    color: var(--slate-900);
    margin-bottom: 10px;
    letter-spacing: -.01em;
}

.appt-meta {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 12px;
}
.appt-meta-row {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: .8125rem;
    color: var(--slate-500);
}
.appt-meta-row .icon { width: 15px; text-align: center; flex-shrink: 0; font-size: .8rem; }

.appt-description {
    font-size: .8125rem;
    color: var(--slate-400);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.appt-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--slate-50);
}

/* ── Badges ───────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 99px;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .03em;
    text-transform: uppercase;
}
.badge-available { background: var(--green-100); color: var(--green-600); }
.badge-full      { background: var(--red-100);   color: var(--red-600); }
.badge-pending   { background: var(--amber-100);  color: #92400e; }
.badge-confirmed { background: var(--green-100);  color: var(--green-600); }
.badge-cancelled { background: var(--slate-100);  color: var(--slate-500); }

/* ── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius);
    font-family: 'Inter', sans-serif;
    font-size: .8125rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), opacity var(--transition);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: -.01em;
}
.btn:hover { text-decoration: none; }
.btn:active { opacity: .85; }

.btn-primary   { background: var(--slate-900); color: #fff; }
.btn-primary:hover { background: var(--slate-700); color: #fff; }

.btn-secondary { background: var(--slate-100); color: var(--slate-700); }
.btn-secondary:hover { background: var(--slate-200); }

.btn-danger    { background: var(--red-50); color: var(--red-600); border: 1px solid var(--red-100); }
.btn-danger:hover { background: var(--red-100); }

.btn-ghost     { background: transparent; color: var(--slate-600); border: 1px solid var(--slate-200); }
.btn-ghost:hover { background: var(--slate-50); }

.btn-sm  { padding: 5px 12px; font-size: .75rem; }
.btn-lg  { padding: 11px 26px; font-size: .9375rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── Forms ────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 5px;
    letter-spacing: -.01em;
}
.form-label .req { color: var(--red-600); margin-left: 2px; }

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--slate-200);
    border-radius: var(--radius);
    font-family: 'Inter', sans-serif;
    font-size: .875rem;
    color: var(--slate-800);
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--slate-400);
    box-shadow: 0 0 0 3px rgba(15,23,42,.06);
}
.form-control::placeholder { color: var(--slate-300); }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
@media (max-width: 768px) { .form-row { grid-template-columns: 1fr; } }

/* ── Modal ────────────────────────────────────────────── */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.4);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition), visibility var(--transition);
}
.modal-backdrop.open { opacity: 1; visibility: visible; pointer-events: all; }

.modal {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 460px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(16px);
    transition: transform .2s cubic-bezier(.34,1.4,.64,1);
}
.modal-backdrop.open .modal { transform: none; }

.modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}
.modal-title { font-size: .9375rem; font-weight: 700; color: var(--slate-900); letter-spacing: -.02em; }
.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--slate-400);
    font-size: 1.1rem;
    line-height: 1;
    padding: 2px;
    transition: color var(--transition);
    flex-shrink: 0;
}
.modal-close:hover { color: var(--slate-700); }

.modal-body { padding: 20px 24px; }
.modal-footer {
    padding: 14px 24px 20px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* ── Alerts ───────────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: .8125rem;
    display: flex;
    align-items: flex-start;
    gap: 9px;
    margin-bottom: 16px;
    line-height: 1.5;
    border: 1px solid transparent;
}
.alert-info    { background: var(--blue-50);  color: #1e40af; border-color: var(--blue-100); }
.alert-success { background: var(--green-50); color: var(--green-600); border-color: var(--green-100); }
.alert-warning { background: var(--amber-100); color: #92400e; border-color: #fde68a; }
.alert-error   { background: var(--red-50);   color: var(--red-600); border-color: var(--red-100); }

/* ── Tables ───────────────────────────────────────────── */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--slate-200);
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .8125rem;
}
table.data-table thead { background: var(--slate-50); }
table.data-table thead th {
    padding: 10px 14px;
    text-align: left;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--slate-400);
    border-bottom: 1px solid var(--slate-200);
    white-space: nowrap;
}
table.data-table tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--slate-100);
    color: var(--slate-700);
    vertical-align: middle;
}
table.data-table tbody tr:last-child td { border-bottom: none; }
table.data-table tbody tr:hover { background: var(--slate-50); }

.actions-cell { display: flex; gap: 5px; flex-wrap: wrap; }

/* ── Admin Layout ─────────────────────────────────────── */
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
    width: 220px;
    background: var(--slate-900);
    color: #fff;
    flex-shrink: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-logo {
    padding: 20px 18px;
    font-size: .9rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -.02em;
    border-bottom: 1px solid rgba(255,255,255,.08);
    margin-bottom: 10px;
}
.sidebar-logo small {
    display: block;
    font-size: .7rem;
    color: var(--slate-500);
    font-weight: 400;
    margin-top: 1px;
    letter-spacing: 0;
}

.sidebar-nav { flex: 1; padding: 0 8px; }
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 11px;
    border-radius: var(--radius);
    color: var(--slate-400);
    font-size: .8125rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
    margin-bottom: 2px;
    letter-spacing: -.01em;
}
.sidebar-link:hover { background: rgba(255,255,255,.06); color: #fff; text-decoration: none; }
.sidebar-link.active { background: rgba(255,255,255,.1); color: #fff; }
.sidebar-link .icon { font-size: .875rem; width: 18px; text-align: center; }

/* ── Admin Topbar ─────────────────────────────────────── */
.admin-main { flex: 1; overflow-x: hidden; display: flex; flex-direction: column; }

.admin-topbar {
    background: #fff;
    border-bottom: 1px solid var(--slate-200);
    padding: 0 28px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-shrink: 0;
}
.admin-topbar h1 { font-size: 1rem; letter-spacing: -.02em; }
.admin-topbar-left { display: flex; align-items: center; gap: 12px; }

.admin-content { padding: 28px; flex: 1; }

/* ── Hamburger (mobile) ───────────────────────────────── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.hamburger span {
    display: block;
    height: 2px;
    background: var(--slate-600);
    border-radius: 2px;
    transition: transform .2s, opacity .2s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile nav overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 90;
}
.sidebar-overlay.open { display: block; }

/* ── Toolbar ──────────────────────────────────────────── */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

/* ── Result pages ─────────────────────────────────────── */
.result-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.result-card {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 44px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    border: 1px solid var(--slate-200);
}
.result-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 20px;
}
.result-icon.success { background: var(--green-100); }
.result-icon.error   { background: var(--red-100); }
.result-icon.info    { background: var(--blue-50); }

/* ── Empty State ──────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 56px 20px;
    color: var(--slate-400);
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 12px; }
.empty-state h3 { color: var(--slate-500); margin-bottom: 6px; font-size: .9375rem; }

/* ── Footer ───────────────────────────────────────────── */
.site-footer {
    background: #fff;
    border-top: 1px solid var(--slate-200);
    padding: 20px;
    text-align: center;
    font-size: .75rem;
    color: var(--slate-400);
}

/* ── Toast ────────────────────────────────────────────── */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.toast {
    padding: 10px 16px;
    border-radius: var(--radius);
    background: var(--slate-900);
    color: #fff;
    font-size: .8125rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(calc(100% + 28px));
    transition: transform .25s cubic-bezier(.34,1.4,.64,1);
    max-width: 300px;
    font-weight: 500;
}
.toast.show { transform: none; }
.toast.success { background: var(--green-600); }
.toast.error   { background: var(--red-600); }

/* ── Count pills (admin) ──────────────────────────────── */
.count-pill {
    display: inline-flex; align-items: center; gap: 3px;
    padding: 2px 7px; border-radius: 99px; font-size: .7rem; font-weight: 600;
    letter-spacing: .02em;
}
.pill-confirmed { background: var(--green-100); color: var(--green-600); }
.pill-pending   { background: var(--amber-100); color: #92400e; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    .hamburger { display: flex; }

    .admin-sidebar {
        position: fixed;
        left: -220px;
        top: 0;
        height: 100vh;
        z-index: 95;
        transition: left .25s cubic-bezier(.4,0,.2,1);
    }
    .admin-sidebar.open { left: 0; }

    .admin-content { padding: 16px; }
    .admin-topbar  { padding: 0 16px; }
    .modal-body, .modal-header, .modal-footer { padding-left: 18px; padding-right: 18px; }
    .result-card { padding: 28px 20px; }
}
@media (max-width: 768px) {
    .appointments-grid { grid-template-columns: 1fr; }
}

/* ───────── Wartung / Maintenance ───────── */

.maintenance-card {
    background:#fff;
    border:1px solid var(--slate-200);
    border-radius:var(--radius-lg);
    padding:20px 22px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
}

.maintenance-card.maintenance-danger {
    border-color:var(--red-100);
}

.maintenance-title {
    font-weight:600;
    font-size:.9rem;
    color:var(--slate-800);
    margin-bottom:3px;
}

.maintenance-sub {
    font-size:.8rem;
    color:var(--slate-400);
}

/* Datenbankstruktur */

.db-title {
    margin-bottom:18px;
    font-size:1.4rem;
    font-weight:700;
    color:var(--slate-900);
}

.db-grid {
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(420px,1fr));
    gap:20px;
}

.db-table-card {
    background:#fff;
    border:1px solid var(--slate-200);
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:0 1px 2px rgba(0,0,0,.04);
}

.db-table-header {
    padding:14px 18px;
    background:var(--slate-100);
    border-bottom:1px solid var(--slate-200);
    font-weight:700;
    color:var(--slate-800);
    display:flex;
    align-items:center;
    justify-content:space-between;
}

.db-table-count {
    font-size:.75rem;
    color:var(--slate-500);
    font-weight:500;
}

.db-table-scroll {
    overflow:auto;
    max-height:420px;
}

.db-table {
    width:100%;
    border-collapse:collapse;
    font-size:.82rem;
}

.db-table thead {
    position:sticky;
    top:0;
    background:#f8fafc;
    z-index:1;
}

.db-table th,
.db-table td {
    text-align:left;
    padding:10px 12px;
}

.db-table tbody tr {
    border-top:1px solid var(--slate-100);
}

.db-field {
    font-weight:600;
    color:var(--slate-800);
}