@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/inter-400.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('fonts/inter-500.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('fonts/inter-600.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('fonts/inter-700.woff2') format('woff2');
}

:root {
    --bg: #0A0E1A;
    --card: #131B2E;
    --hover: #1E2A47;
    --primary: #2F5DFF;
    --primary-hover: #5B82FF;
    --primary-text: #FFFFFF;
    --text: #F1F4FB;
    --text-secondary: #AEB9D6;
    --text-muted: #6B7594;
    --success: #34D399;
    --error: #F2545B;
    --warning: #F5A524;
    --border: rgba(241, 244, 251, .12);
    --overlay-bg: #050810;
    --radius: 20px;
}

* { box-sizing: border-box; }

.hidden {
    display: none !important;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 18px;
    line-height: 1.5;
}

.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    padding: 12px 22px;
    transition: background-color .15s ease, color .15s ease, transform .15s ease;
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    background: var(--primary);
    color: var(--primary-text);
    border: 1px solid var(--border);
}

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

.btn-text {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

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

.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1px solid var(--error);
    margin-left: auto;
}

.btn-danger:hover {
    background: var(--error);
    color: var(--primary-text);
}

.btn:disabled,
.btn.is-disabled {
    opacity: .4;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color .15s ease, color .15s ease;
}

.btn-icon:hover {
    background: var(--hover);
    color: var(--text);
}

/* Kopf-Bereich */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 28px 0 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.brand-title {
    font-size: 20px;
    font-weight: 700;
}

.brand-version {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 8px;
    vertical-align: middle;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lock-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--text-muted);
}

/* Einstellungen */
.settings-panel {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow: hidden;
    animation: settings-open .2s ease;
}

.settings-panel.hidden {
    display: none;
}

@keyframes settings-open {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.setting-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-label {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.setting-value {
    font-weight: 600;
    color: var(--text);
}

.setting-row-toggle {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.setting-label-inline {
    font-size: 14px;
    color: var(--text-secondary);
}

.setting-warning {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: rgba(245, 165, 36, .1);
    border: 1px solid var(--warning);
    border-radius: calc(var(--radius) - 8px);
    padding: 14px 16px;
    color: var(--warning);
}

.setting-warning.hidden {
    display: none;
}

.setting-warning svg {
    flex-shrink: 0;
    margin-top: 1px;
}

.approve-banner {
    display: flex;
    gap: 12px;
    align-items: center;
    background: rgba(52, 211, 153, .1);
    border: 1px solid var(--success);
    border-radius: calc(var(--radius) - 8px);
    padding: 14px 16px;
    color: var(--success);
    font-weight: 600;
    margin-bottom: 20px;
}

.approve-banner.approve-banner-stale {
    background: rgba(245, 165, 36, .1);
    border-color: var(--warning);
    color: var(--warning);
}

.approve-banner.hidden {
    display: none;
}

.approve-banner svg {
    flex-shrink: 0;
}

.setting-warning p {
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-secondary);
}

input[type="color"] {
    width: 44px;
    height: 32px;
    padding: 2px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
}

input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 2px;
    background: var(--hover);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-hover);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    background: var(--primary-hover);
    cursor: pointer;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 26px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-track {
    position: absolute;
    inset: 0;
    background: var(--hover);
    border-radius: 999px;
    cursor: pointer;
    transition: background-color .15s ease;
}

.switch-track::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    top: 3px;
    background: var(--text);
    border-radius: 50%;
    transition: transform .15s ease;
}

.switch input:checked + .switch-track {
    background: var(--primary);
}

.switch input:disabled + .switch-track {
    cursor: not-allowed;
    opacity: .5;
}

.switch input:checked + .switch-track::before {
    transform: translateX(18px);
}

/* Insert-Box */
.insert-box {
    background: var(--card);
    border: 2px dashed var(--hover);
    border-radius: var(--radius);
    padding: 48px 24px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
}

.insert-icon {
    color: var(--text-muted);
}

.create-own-box {
    padding: 32px 24px;
    border-style: solid;
}

.insert-box.is-dragover {
    border-color: var(--primary);
}

#mainContent.hidden {
    display: none;
}

/* Zustands-Ersatzansichten (nicht freigegeben / nicht verfügbar) */
.state-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
    color: var(--text-secondary);
    padding: 80px 24px;
}

.state-message.hidden {
    display: none;
}

.state-message svg {
    color: var(--text-muted);
}

/* Ladeanzeige */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 16, .55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}

.loading-overlay.hidden {
    display: none;
}

.spinner {
    width: 44px;
    height: 44px;
    border: 4px solid rgba(241, 244, 251, .2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spinner-rotate .8s linear infinite;
}

@keyframes spinner-rotate {
    to { transform: rotate(360deg); }
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 16, .7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 24px;
}

.modal-overlay.hidden {
    display: none;
}

.modal-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    max-width: 440px;
    width: 100%;
}

.modal-card h2 {
    margin: 0 0 12px;
    font-size: 18px;
}

.modal-card p {
    margin: 0 0 18px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.55;
}

.modal-link-row {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
}

.modal-link-row.hidden {
    display: none;
}

.modal-link-row input {
    flex: 1;
    min-width: 0;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 13px;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

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

/* Panel */
.panel {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 20px;
}

.panel-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* Thumbnails */
.thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.thumb {
    position: relative;
    aspect-ratio: 4 / 3;
    background: #0E1626;
    border: 2px solid rgba(241, 244, 251, .28);
    border-radius: var(--radius);
    cursor: grab;
    transition: border-color .15s ease;
}

.thumb:hover {
    border-color: var(--text-secondary);
}

.thumb-img {
    position: absolute;
    inset: 6px;
    width: calc(100% - 12px);
    height: calc(100% - 12px);
    object-fit: cover;
    border-radius: calc(var(--radius) - 4px);
}

.thumb.is-dragging {
    opacity: .4;
}

.thumb-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 26px;
    height: 26px;
    border: none;
    border-radius: 50%;
    background: rgba(5, 8, 16, .55);
    color: #fff;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
}

.thumb-remove:hover {
    background: var(--error);
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 24px 0 40px;
    color: var(--text-muted);
    font-size: 13px;
}

/* Vollbild-Slideshow */
.fullscreen-overlay {
    position: fixed;
    inset: 0;
    background: var(--fs-bg, var(--overlay-bg));
    z-index: 100;
}

.fullscreen-overlay.hidden {
    display: none;
}

.fs-slide {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.fs-slide-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity .7s ease;
}

.fs-slide-img.is-visible {
    opacity: 1;
}

.fs-slide-img.is-zooming {
    animation: fs-zoom var(--zoom-duration, 120s) ease-in-out infinite;
}

@keyframes fs-zoom {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(var(--zoom-scale, 1.3)); }
}

/* Auto-Ausblenden der Bedienelemente (nicht Uhrzeit/Countdown) */
.fs-auto-hide {
    transition: opacity .3s ease;
}

.fullscreen-overlay.controls-hidden .fs-auto-hide {
    opacity: 0;
    pointer-events: none;
}

.btn-fs {
    background: rgba(30, 42, 71, .85);
    border: 1px solid rgba(241, 244, 251, .18);
    color: var(--text);
}

.btn-fs.btn:hover {
    background: rgba(46, 63, 102, .95);
}

.fs-top-left {
    position: absolute;
    top: 20px;
    left: 20px;
}

.fs-top-center {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.fs-top-right {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px 18px;
    border-radius: var(--radius);
    background: rgba(30, 42, 71, .85);
    border: 1px solid rgba(241, 244, 251, .18);
    font-variant-numeric: tabular-nums;
}

.fs-bottom-left {
    position: absolute;
    bottom: 20px;
    left: 20px;
    padding: 10px 18px;
    border-radius: var(--radius);
    background: rgba(30, 42, 71, .85);
    border: 1px solid rgba(241, 244, 251, .18);
}

.fs-bottom-right {
    position: absolute;
    bottom: 20px;
    right: 20px;
    padding: 10px 18px;
    border-radius: var(--radius);
    background: rgba(30, 42, 71, .85);
    border: 1px solid rgba(241, 244, 251, .18);
    font-variant-numeric: tabular-nums;
    display: flex;
    align-items: center;
    gap: 6px;
}

.fs-bottom-right.is-paused {
    font-weight: 700;
    font-size: 1.15em;
}

.fs-countdown-pause-icon {
    flex-shrink: 0;
}

.fs-bottom-center {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    background: rgba(30, 42, 71, .85);
    border: 1px solid rgba(241, 244, 251, .18);
    border-radius: var(--radius);
    padding: 4px;
}

.fs-bottom-center .btn-icon {
    color: var(--text);
}

/* Breakpoints */
@media (max-width: 1024px) {
    .thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 640px) {
    body {
        font-size: 16px;
    }
    .wrap {
        padding: 0 16px;
    }
    .app-header {
        flex-wrap: wrap;
    }
    .panel-buttons {
        flex-direction: column;
    }
    .panel-buttons .btn {
        width: 100%;
    }
    .thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    .fs-bottom-center {
        gap: 4px;
    }
}