:root {
    --bg: #0b0f17;
    --card: #111827;
    --card-soft: #1f2937;
    --accent: #22d3ee;
    --accent-soft: #0ea5e9;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --success: #22c55e;
    --danger: #f43f5e;
    --shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.08), transparent 28%),
        radial-gradient(circle at 80% 0%, rgba(244, 63, 94, 0.08), transparent 32%),
        var(--bg);
    color: var(--text);
    display: flex;
    justify-content: center;
    padding: 16px;
    min-width: 0;
    overflow-x: hidden;
}

.shell {
    width: min(980px, 100%);
    display: grid;
    gap: 16px;
    min-width: 0;
}

.card {
    background: var(--card);
    border-radius: 18px;
    padding: 22px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.04);
    min-width: 0;
    overflow-wrap: break-word;
}

.header {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.title {
    margin: 6px 0 0;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 0.2px;
}

.subtitle {
    margin: 4px 0;
    color: var(--muted);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.2px;
}

.grid {
    display: grid;
    gap: 12px;
}

.row {
    display: grid;
    gap: 6px;
    background: var(--card-soft);
    padding: 12px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    min-width: 0;
}

.label {
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.value {
    font-weight: 700;
    font-size: 16px;
    color: var(--text);
    word-wrap: break-word;
    overflow-wrap: break-word;
    min-width: 0;
}

.section-title {
    font-weight: 800;
    font-size: 16px;
    margin: 6px 0 6px;
    letter-spacing: 0.2px;
}

.upload {
    border: 1px dashed rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    padding: 14px;
    background: var(--card-soft);
    color: var(--text);
    display: grid;
    gap: 8px;
    transition: all 0.2s ease;
    outline: none;
}

.upload:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
}

.upload.drag-over {
    border-color: var(--accent);
    background: rgba(34, 211, 238, 0.08);
    border-width: 2px;
}

.file-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.upload-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.file-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(34, 211, 238, 0.12);
    color: var(--accent);
    border: 1px solid rgba(34, 211, 238, 0.35);
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    font-size: 14px;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
    outline: none;
    flex: 1;
    min-width: 140px;
}

.file-button.camera-button {
    background: rgba(34, 211, 238, 0.15);
    border-color: rgba(34, 211, 238, 0.45);
}

.file-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.25);
}

.file-button:focus {
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.3);
    transform: translateY(-1px);
}

.file-button:active {
    transform: translateY(0);
}

/* Hide camera button on desktop */
@media (min-width: 769px) {
    .file-button.camera-button {
        display: none;
    }
    
    .file-button {
        flex: 0 1 auto;
    }
}

.file-note {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.file-note strong {
    color: var(--text);
    font-weight: 800;
}

.actions {
    display: flex;
    gap: 12px;
    margin-top: 12px;
    flex-wrap: wrap;
}

button {
    border: none;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 800;
    cursor: pointer;
    letter-spacing: 0.2px;
    outline: none;
    transition: all 0.2s ease;
}

button:focus {
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.3);
}

button:focus:not(:focus-visible) {
    box-shadow: none;
}

button:focus-visible {
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.3);
}

.primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-soft));
    color: #0b1120;
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.35);
}

.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(14, 165, 233, 0.45);
}

.primary:active {
    transform: translateY(0);
}

.ghost {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.ghost:active {
    transform: translateY(0);
}

.lang-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

.lang-switch {
    font-size: 14px;
    color: var(--muted);
}

.lang-switch a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.lang-switch a.active {
    color: var(--accent);
    font-weight: 800;
}

.lang-switch a:hover {
    color: var(--accent);
}

/* Easy Language Toggle (BITV 2.0) */
.simple-lang-toggle {
    display: flex;
    align-items: center;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 13px;
    color: var(--muted);
}

.toggle-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 22px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 11px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.toggle-slider:after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: var(--text);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider {
    background: var(--accent);
    border-color: var(--accent);
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider:after {
    transform: translateX(20px);
    background: #fff;
}

.toggle-label input[type="checkbox"]:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
    outline: none;
}

.toggle-label:hover .toggle-slider {
    background: rgba(255, 255, 255, 0.15);
}

.toggle-label input[type="checkbox"]:checked:hover + .toggle-slider {
    background: var(--accent-soft);
}

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

.toggle-label input[type="checkbox"]:checked ~ .toggle-text {
    color: var(--accent);
}

.info-note {
    margin: 8px 0 0;
    padding: 10px 12px;
    color: var(--accent);
    font-size: 14px;
    line-height: 1.5;
    background: rgba(34, 211, 238, 0.12);
    border: 1px solid rgba(34, 211, 238, 0.25);
    border-radius: 10px;
}

.security-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
}

.security-badge svg {
    flex-shrink: 0;
}

@media (max-width: 640px) {
    .security-badge {
        font-size: 12px;
        padding: 6px 10px;
    }
    
    .security-badge span {
        font-size: 11px;
    }
}

@media (min-width: 768px) {
    .grid.two {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }
}

pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 12px;
    border-radius: 12px;
    overflow: auto;
    font-size: 13px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    max-width: 100%;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Error state */
.error-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(244, 63, 94, 0.15);
    color: var(--danger);
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.2px;
}

.error-message {
    margin: 12px 0 0;
    font-size: 16px;
    color: var(--text);
    line-height: 1.6;
}

.confirm-hint {
    margin: 0;
    font-size: 14px;
    color: var(--accent);
    line-height: 1.5;
    font-weight: 500;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(34, 211, 238, 0.12);
    border: 1px solid rgba(34, 211, 238, 0.25);
}
/* Status result cards */
.success-card strong {
    color: var(--success);
}

.error-card strong {
    color: var(--danger);
}

#statusResultCard {
    display: none;
}

#validationError {
    display: none;
}

.file-list {
    margin-top: 8px;
}

.file-thumbnail {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--card);
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pdf-preview, .file-preview {
    font-size: 24px;
    line-height: 1;
}

/* Progress Bar */
.progress-container {
    display: grid;
    gap: 12px;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.progress-bar {
    width: 100%;
    height: 24px;
    background: var(--card-soft);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-soft));
    transition: width 0.3s ease;
    width: 0%;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
}

/* Format Error Toast */
.format-error-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(244, 63, 94, 0.95);
    color: white;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(244, 63, 94, 0.4);
    z-index: 10000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    max-width: 400px;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.format-error-toast.show {
    transform: translateX(0);
}

.format-error-content {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.format-error-icon {
    font-size: 24px;
    line-height: 1;
}

.format-error-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.format-error-text strong {
    font-size: 15px;
    font-weight: 700;
}

.format-error-text span {
    font-size: 13px;
    opacity: 0.9;
}