/* ===========================================================================
   Software-Download-Portal – Stylesheet
   Eigenes, schlankes CSS ohne externe Abhängigkeiten.
   =========================================================================== */

:root {
    --color-bg: #f4f6f9;
    --color-surface: #ffffff;
    --color-border: #e2e6ec;
    --color-text: #1f2733;
    --color-text-muted: #667085;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-contrast: #ffffff;
    --color-success-bg: #ecfdf3;
    --color-success-text: #027a48;
    --color-success-border: #a6f4c5;
    --color-error-bg: #fef3f2;
    --color-error-text: #b42318;
    --color-error-border: #fecdca;
    --color-info-bg: #eff8ff;
    --color-info-text: #175cd3;
    --color-info-border: #b2ddff;

    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.1);
    --shadow-lg: 0 4px 12px rgba(16, 24, 40, 0.08);
    --container-width: 960px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

    --color-hover: #f8fafc;
    --color-status-off-bg: #f2f4f7;
}

/* Dunkles Farbschema – wird automatisch bei entsprechender Systemeinstellung aktiv.
   Da alle Flächen über Variablen gefärbt sind, genügt das Überschreiben hier. */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0e131c;
        --color-surface: #171f2b;
        --color-border: #2a3646;
        --color-text: #e6edf3;
        --color-text-muted: #94a3b8;
        --color-primary: #3b82f6;
        --color-primary-hover: #60a5fa;
        --color-primary-contrast: #ffffff;
        --color-success-bg: #0f2a1e;
        --color-success-text: #4ade80;
        --color-success-border: #1c5238;
        --color-error-bg: #2c1615;
        --color-error-text: #f87171;
        --color-error-border: #5b2321;
        --color-info-bg: #12233d;
        --color-info-text: #60a5fa;
        --color-info-border: #1e3a5f;

        --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.5);
        --color-hover: #1e2836;
        --color-status-off-bg: #26313f;
    }
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.55;
    color: var(--color-text);
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3 {
    line-height: 1.25;
    margin: 0 0 0.5em;
}

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

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Kopf- und Fußzeile -------------------------------------------------- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-text);
}

.brand:hover {
    text-decoration: none;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    font-weight: 700;
}

.site-nav a {
    margin-left: 18px;
    color: var(--color-text-muted);
    font-weight: 500;
}

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

.main-content {
    flex: 1 0 auto;
    padding-top: 32px;
    padding-bottom: 48px;
}

.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

/* --- Seitentitel --------------------------------------------------------- */
.page-intro {
    margin-bottom: 28px;
}

.page-intro h1 {
    font-size: 1.9rem;
}

.lead {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    margin: 0;
}

/* --- Karten / Programm-Liste -------------------------------------------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.card h2,
.card h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.card .summary {
    color: var(--color-text-muted);
    flex: 1 0 auto;
    margin: 0 0 16px;
}

/* --- Badges / Meta ------------------------------------------------------- */
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--color-info-bg);
    color: var(--color-info-text);
    border: 1px solid var(--color-info-border);
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.meta-row .meta-label {
    color: var(--color-text);
    font-weight: 600;
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
    text-decoration: none;
    background: var(--color-hover);
}

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-primary-contrast);
}

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

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

.btn-danger:hover {
    background: #912018;
    border-color: #912018;
}

.btn-sm {
    padding: 5px 11px;
    font-size: 0.85rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* --- Alerts / Flash ------------------------------------------------------ */
.flash-area {
    margin-top: 20px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

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

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

.alert-info {
    background: var(--color-info-bg);
    color: var(--color-info-text);
    border-color: var(--color-info-border);
}

/* --- Empty-State --------------------------------------------------------- */
.empty-state {
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--color-text-muted);
}

/* --- Fehlerseiten -------------------------------------------------------- */
.error-page {
    text-align: center;
    padding: 60px 20px;
}

.error-code {
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-primary);
    margin: 0;
    line-height: 1;
}

.debug-box {
    text-align: left;
    margin-top: 32px;
    padding: 16px;
    background: #1f2733;
    color: #e6edf3;
    border-radius: var(--radius);
    overflow-x: auto;
}

.debug-box pre {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: pre-wrap;
}

/* --- Detailseite --------------------------------------------------------- */
.back-link {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

.detail-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-bottom: 8px;
}

.detail-header h1 {
    margin: 0;
    font-size: 1.7rem;
}

.download-box {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 20px;
    margin: 24px 0;
}

.download-box-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.muted {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.detail-section {
    margin-top: 32px;
}

.detail-section h2 {
    font-size: 1.2rem;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.description {
    color: var(--color-text);
    margin: 0;
}

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

.release-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.94rem;
}

.release-table th,
.release-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.release-table th {
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.release-table .hash code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.col-action {
    text-align: right;
    width: 1%;
}

/* --- Responsiv ----------------------------------------------------------- */
@media (max-width: 640px) {
    .header-inner {
        height: 56px;
    }

    .page-intro h1 {
        font-size: 1.6rem;
    }

    .download-box {
        flex-direction: column;
        align-items: stretch;
    }

    .download-box .btn {
        text-align: center;
    }
}

/* ===========================================================================
   Formulare
   =========================================================================== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.92rem;
}

input[type="text"],
input[type="password"],
input[type="url"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.98rem;
    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, box-shadow 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

input[type="file"] {
    width: 100%;
    padding: 9px;
    background: var(--color-bg);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
}

.form-hint {
    margin: 6px 0 0;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1 1 200px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check input {
    width: auto;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    align-items: center;
    margin-top: 8px;
}

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    max-width: 760px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}

.danger-zone {
    border-color: var(--color-error-border);
}

.danger-zone .card-title {
    color: var(--color-error-text);
    border-bottom-color: var(--color-error-border);
}

/* ===========================================================================
   Anmeldeseite (auth-Layout)
   =========================================================================== */
.auth-body {
    background: var(--color-bg);
}

.auth-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-box {
    width: 100%;
    max-width: 380px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 32px;
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.auth-title {
    font-size: 1.4rem;
    margin-bottom: 4px;
}

.auth-subtitle {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    margin: 0 0 22px;
}

.auth-form .btn-block {
    margin-top: 6px;
}

.auth-footer {
    margin-top: 20px;
    font-size: 0.9rem;
}

.auth-note {
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    font-size: 0.83rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ===========================================================================
   Admin-Bereich
   =========================================================================== */
.admin-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.admin-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.admin-tag {
    display: inline-block;
    padding: 1px 7px;
    margin-left: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-primary);
    background: var(--color-info-bg);
    border-radius: 4px;
    vertical-align: middle;
}

.admin-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.admin-nav-link {
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.92rem;
    font-weight: 500;
}

.admin-nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg);
    text-decoration: none;
}

.admin-nav-link.active {
    color: var(--color-primary);
    background: var(--color-info-bg);
}

.admin-logout {
    margin-left: 6px;
}

.admin-main {
    max-width: 1100px;
    padding-top: 28px;
    padding-bottom: 48px;
}

.admin-page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.admin-page-head h1 {
    margin: 0;
    font-size: 1.5rem;
}

/* --- Admin-Tabelle ------------------------------------------------------- */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    font-size: 0.94rem;
}

.admin-table th,
.admin-table td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.admin-table thead th {
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.mono {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.status {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-on {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

.status-off {
    background: var(--color-status-off-bg);
    color: var(--color-text-muted);
}

.inline-form {
    display: inline;
}

.col-action {
    white-space: nowrap;
}

.col-action .btn,
.col-action .inline-form {
    vertical-align: middle;
}

@media (max-width: 640px) {
    .admin-header-inner {
        height: auto;
        flex-direction: column;
        align-items: flex-start;
        padding-top: 10px;
        padding-bottom: 10px;
    }

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