/* === Voltfang Media Renamer – Branding-konformes Styling === */

:root {
    --green: #89B2AA;
    --green-dark: #6a9991;
    --green-light: #c4d9d5;
    --petrol: #018287;
    --blue: #0544BB;
    --dark: #121212;
    --dark-mid: #24242B;
    --mid: #464E5B;
    --muted: #626A77;
    --light: #EEF1F6;
    --border: #D8DDE8;
    --white: #FFFFFF;
    --warn: #f59e0b;
    --warn-bg: #fef3c7;
    --danger: #dc2626;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 4px rgba(0,0,0,.10), 0 2px 12px rgba(0,0,0,.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,.14);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    --sidebar-width: 220px;
    --sidebar-width-collapsed: 52px;
    --topbar-height: 52px;
    --sidebar-bg: #1a1a22;
    --sidebar-border: rgba(255,255,255,.07);
    --nav-hover: rgba(255,255,255,.06);
    --nav-active-bg: rgba(137,178,170,.12);
    --nav-active-color: #89B2AA;
    --nav-group-color: rgba(255,255,255,.28);
}

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

body {
    font-family: var(--font);
    font-size: 0.6875rem;
    background: var(--light);
    color: var(--dark);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* === SIDEBAR === */
.sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 100;
    transition: width .22s ease;
}

.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .75rem .85rem;
    border-bottom: 1px solid var(--sidebar-border);
}

.brand-logo {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: opacity .22s ease, width .22s ease;
}

.sidebar.collapsed .brand-text {
    opacity: 0;
    width: 0;
}

.brand-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: .02em;
    line-height: 1.1;
}

.brand-product {
    font-size: 0.675rem;
    font-weight: 500;
    color: var(--green);
    line-height: 1.1;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: rgba(255,255,255,.4);
    cursor: pointer;
    margin-left: auto;
    padding: .25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .22s ease;
}

.sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

.sidebar-nav {
    padding: .5rem 0;
    flex: 1;
}

.nav-group-label {
    font-size: 0.52rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--nav-group-color);
    padding: .75rem .85rem .35rem;
}

.sidebar.collapsed .nav-group-label {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .5rem .85rem;
    color: rgba(255,255,255,.6);
    text-decoration: none;
    font-size: 0.68rem;
    font-weight: 500;
    transition: background .12s, color .12s;
    border-radius: 0;
}

.nav-item:hover {
    background: var(--nav-hover);
}

.nav-item.active {
    background: var(--nav-active-bg);
    color: var(--nav-active-color);
}

.nav-item svg {
    flex-shrink: 0;
}

.sidebar.collapsed .nav-item span {
    display: none;
}

/* === MAIN WRAPPER === */
.main-wrapper {
    margin-left: var(--sidebar-width);
    border-radius: 12px 0 0 12px;
    background: var(--light);
    min-height: 100vh;
    transition: margin-left .22s ease;
}

body.sidebar-collapsed .main-wrapper {
    margin-left: var(--sidebar-width-collapsed);
}

/* === TOPBAR === */
.topbar {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    border-radius: 12px 0 0 0;
}

.topbar-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--dark);
}

.topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.btn-sm {
    padding: .2rem .5rem;
    font-size: .62rem;
}

/* === CONTENT === */
.content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

/* === CARDS === */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: .75rem 1rem;
    transition: box-shadow .2s ease, transform .2s ease;
}

.card-header {
    margin-bottom: .75rem;
}

.section-title {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: .25rem;
}

.description-text {
    font-size: 0.6rem;
    font-weight: 400;
    color: var(--muted);
}

/* === DROPZONE === */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}

.dropzone:hover,
.dropzone.dragover {
    border-color: var(--petrol);
    background: rgba(1,130,135,.04);
}

.dropzone-icon {
    color: var(--muted);
    margin-bottom: .5rem;
}

.dropzone.dragover .dropzone-icon {
    color: var(--petrol);
}

.dropzone-text {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--mid);
}

.browse-link {
    color: var(--petrol);
    text-decoration: underline;
    font-weight: 600;
    cursor: pointer;
}

.dropzone-hint {
    font-size: 0.55rem;
    color: var(--muted);
    margin-top: .25rem;
}

/* === PREVIEW === */
.preview-media {
    text-align: center;
    margin-bottom: .5rem;
}

.preview-media img,
.preview-media video {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.preview-info {
    text-align: center;
    padding-top: .25rem;
}

/* === AI LOADING === */
.ai-loading {
    text-align: center;
    padding: 1.5rem 1rem;
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border);
    border-top-color: var(--petrol);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto .5rem;
}

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

.ai-loading p {
    font-size: 0.65rem;
    color: var(--muted);
}

/* === FORM === */
.meta-form {
    padding: .75rem 1rem 1rem;
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.form-row {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.form-row label {
    width: 130px;
    font-weight: 600;
    font-size: 0.65rem;
    color: var(--mid);
    flex-shrink: 0;
}

.form-row input,
.form-row select {
    flex: 1;
    padding: .4rem .6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-family: var(--font);
    color: var(--dark);
    background: var(--white);
    transition: border-color .15s;
}

.form-row input:focus,
.form-row select:focus {
    outline: none;
    border-color: var(--petrol);
    box-shadow: 0 0 0 2px rgba(1,130,135,.12);
}

.form-row input:read-only {
    background: var(--light);
    color: var(--muted);
}

.input-with-badge {
    flex: 1;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.input-with-badge input,
.input-with-badge select {
    flex: 1;
}

.confidence-badge {
    font-size: .5rem;
    font-weight: 600;
    padding: .12rem .35rem;
    border-radius: 3px;
    white-space: nowrap;
    background: var(--light);
    color: var(--muted);
}

.confidence-badge.high {
    background: #ecfdf5;
    color: #065f46;
}

.confidence-badge.medium {
    background: var(--warn-bg);
    color: #92400e;
}

.confidence-badge.low {
    background: #fef2f2;
    color: var(--danger);
}

/* === AI DESCRIPTION === */
.ai-description {
    background: rgba(1,130,135,.06);
    border-left: 3px solid var(--petrol);
    padding: .6rem .85rem;
    margin: .75rem 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.6rem;
    color: var(--mid);
}

.ai-description strong {
    color: var(--dark);
    font-size: 0.62rem;
}

/* === FILENAME PREVIEW === */
.filename-preview {
    background: var(--light);
    padding: .6rem .85rem;
    border-radius: var(--radius-sm);
    margin: .75rem 0;
}

.filename-preview label {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--mid);
}

.filename-preview code {
    display: block;
    margin-top: .2rem;
    font-size: 0.68rem;
    color: var(--petrol);
    word-break: break-all;
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

/* === BUTTONS === */
.actions {
    display: flex;
    gap: .6rem;
    margin-top: .75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .3rem .6rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.68rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: background .15s, transform .1s;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--petrol);
    color: var(--white);
}

.btn-primary:hover {
    background: #016b6f;
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
}

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

/* === STATUS === */
.status {
    padding: .6rem .85rem;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 500;
}

.status.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.status.error {
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
}

.status.info {
    background: rgba(1,130,135,.06);
    color: var(--petrol);
    border: 1px solid rgba(1,130,135,.15);
}

/* === UTILITIES === */
.hidden { display: none !important; }

/* === ANIMATIONS === */
.card {
    animation: fadeIn .2s ease;
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-width-collapsed);
    }

    .sidebar .brand-text {
        opacity: 0;
        width: 0;
    }

    .sidebar .nav-group-label {
        display: none;
    }

    .sidebar .nav-item span {
        display: none;
    }

    .main-wrapper {
        margin-left: var(--sidebar-width-collapsed);
    }
}

/* Text-Vorschau für .txt/.docx */
.preview-text {
    background: var(--bg-dark);
    color: var(--text-secondary);
    padding: 16px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.6;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}