/* Experiment Report System – Stylesheet
   Bewusst kein CSS-Framework (siehe Entwicklungsprinzipien), aber ein
   kleines, konsistentes Design-System über CSS-Variablen. */

:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-surface-alt: #f1f3f6;
    --color-border: #e1e4ea;
    --color-text: #1a1d23;
    --color-text-muted: #5b6270;

    --color-primary: #2f6fed;
    --color-primary-hover: #2555bd;
    --color-primary-contrast: #ffffff;

    --color-success-bg: #e4f7ec;
    --color-success-text: #147a45;
    --color-error-bg: #fdeaea;
    --color-error-text: #b3261e;
    --color-warning-bg: #fff4e0;
    --color-warning-text: #9a5b00;
    --color-info-bg: #e8eefc;
    --color-info-text: #2555bd;

    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 6px 16px rgba(16, 24, 40, 0.08);

    --font-sans: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #14161a;
        --color-surface: #1c1f26;
        --color-surface-alt: #23262e;
        --color-border: #33373f;
        --color-text: #e7e9ee;
        --color-text-muted: #9aa1ad;

        --color-primary: #6f9bff;
        --color-primary-hover: #8fb0ff;
        --color-primary-contrast: #0e1116;

        --color-success-bg: #113626;
        --color-success-text: #5fd898;
        --color-error-bg: #3a1a1a;
        --color-error-text: #ff8f87;
        --color-warning-bg: #3a2c0f;
        --color-warning-text: #f4b944;
        --color-info-bg: #1c2740;
        --color-info-text: #93b4ff;

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.45);
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.55;
}

h1, h2, h3 {
    line-height: 1.25;
    letter-spacing: -0.01em;
}

h1 {
    font-size: 1.6rem;
    margin: 0 0 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

h2 {
    font-size: 1.15rem;
    margin: 2rem 0 0.75rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.1em 0.4em;
    font-size: 0.9em;
}

/* ---------- Layout ---------- */

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.9rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text);
}

.brand:hover {
    text-decoration: none;
    color: var(--color-primary);
}

.site-nav {
    display: flex;
    gap: 1.25rem;
}

.site-nav a {
    color: var(--color-text-muted);
    font-weight: 500;
}

.site-nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

/* Formular-lastige Seiten (Login, öffentliches Meldeformular) bleiben
   schmaler und damit besser lesbar. */
body:has(.report-page) .page,
body:has(.auth-page) .page {
    max-width: 640px;
}

/* ---------- Flash messages ---------- */

.flashes {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    display: grid;
    gap: 0.5rem;
}

.flash {
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    border: 1px solid transparent;
}

.flash-success { background: var(--color-success-bg); color: var(--color-success-text); }
.flash-error { background: var(--color-error-bg); color: var(--color-error-text); }

/* ---------- Forms ---------- */

.form {
    max-width: 640px;
}

.form p {
    margin: 0 0 1.1rem;
}

label {
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 0.3rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
select,
textarea {
    width: 100%;
    max-width: 100%;
    padding: 0.55rem 0.7rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin-right: 0.4rem;
    accent-color: var(--color-primary);
}

.field-error {
    color: var(--color-error-text);
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 0.3rem;
}

.checkbox-option {
    font-weight: 400;
    display: block;
    margin: 0.3rem 0;
}

/* ---------- Buttons ---------- */

button,
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

button:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

button:active {
    transform: translateY(1px);
}

/* Kleine Aktionsbuttons in Tabellen (toggle/testen/löschen) wirken
   zurückhaltender als der primäre Submit-Button eines Formulars. */
table button,
.actions-cell button {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
    font-size: 0.85rem;
    padding: 0.35rem 0.7rem;
}

table button:hover,
.actions-cell button:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-text-muted);
}

button.danger {
    color: var(--color-error-text);
}

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

button.link-button {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-weight: 500;
    padding: 0.3rem 0;
}

button.link-button:hover {
    background: none;
    color: var(--color-primary);
    text-decoration: underline;
}

.inline-form {
    display: inline;
}

/* ---------- Tables ---------- */

.table-wrap {
    overflow-x: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.92rem;
}

th, td {
    padding: 0.65rem 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

td.url-cell {
    white-space: normal;
    word-break: break-all;
    max-width: 24rem;
}

thead th {
    background: var(--color-surface-alt);
    color: var(--color-text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
}

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

tbody tr:hover {
    background: var(--color-surface-alt);
}

.actions-cell {
    white-space: nowrap;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

table.details {
    box-shadow: none;
}

table.details th {
    width: 10rem;
    background: var(--color-surface-alt);
    white-space: nowrap;
}

table.details td {
    white-space: normal;
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: 1rem;
}

.panel table {
    margin: 0;
}

.panel-padded {
    padding: 2rem;
}

.empty-state {
    color: var(--color-text-muted);
    padding: 2rem;
    text-align: center;
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
}

/* ---------- Badges ---------- */

.badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    vertical-align: middle;
}

.badge-open { background: var(--color-info-bg); color: var(--color-info-text); }
.badge-in_progress { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-resolved { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-critical { background: var(--color-error-bg); color: var(--color-error-text); }

/* ---------- Admin shell ---------- */

.admin-shell {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.admin-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.5rem;
    box-shadow: var(--shadow-sm);
}

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

.admin-nav-links a {
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
}

.admin-nav-links a:hover {
    background: var(--color-surface-alt);
    text-decoration: none;
}

.admin-nav-links a.active {
    background: var(--color-primary);
    color: var(--color-primary-contrast);
}

/* ---------- Dashboard stat cards ---------- */

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--shadow-sm);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.stat-card:hover {
    text-decoration: none;
    border-color: var(--color-primary);
}

.stat-card.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.stat-card-count {
    font-size: 1.6rem;
    font-weight: 700;
}

.stat-card-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ---------- QR codes ---------- */

.qr-experiment {
    margin-bottom: 2rem;
}

.qr-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.qr-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1rem;
    margin: 0;
    text-align: center;
    font-size: 0.85rem;
}

.qr-card img {
    display: block;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    background: #fff;
    padding: 0.4rem;
}

/* ---------- Public report page ---------- */

.report-intro {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

/* ---------- QR-Code-Druckbogen ---------- */

.qr-print-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
    gap: 1rem;
}

.qr-print-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.75rem;
    text-align: center;
    break-inside: avoid;
}

.qr-print-card img {
    width: 100%;
    height: auto;
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 0.3rem;
}

.qr-print-label {
    margin-top: 0.4rem;
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
}

.qr-print-label span {
    color: var(--color-text-muted);
}

/* Beim Drucken: Header/Navigation/Flash-Messages weg, reines
   Papier-Layout, Karten dürfen nicht über eine Seitengrenze
   umgebrochen werden. */
@media print {
    .site-header,
    .no-print,
    .flashes {
        display: none !important;
    }

    body {
        background: #fff;
    }

    .page {
        max-width: none;
        padding: 0;
    }

    .qr-print-card {
        box-shadow: none;
        border: 1px solid #999;
    }
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
    .page {
        padding: 1.25rem 1rem 3rem;
    }

    .admin-nav {
        flex-direction: column;
        align-items: stretch;
    }

    table.details th {
        width: auto;
    }
}