/* ============================
   Super Watermark — SMI AGENTS
   Dark Cyberpunk Theme
   ============================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #0A0E17;
    --bg-secondary: #111827;
    --bg-card: #1A1F2E;
    --bg-card-hover: #222838;
    --border-color: #2A3040;
    --border-accent: #00D4FF;
    --text-primary: #E2E8F0;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --accent-cyan: #00D4FF;
    --accent-gold: #C69749;
    --accent-gold-dim: #A67B3A;
    --accent-green: #10B981;
    --danger: #EF4444;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --glass-bg: rgba(26, 31, 46, 0.85);
    --glass-border: rgba(0, 212, 255, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* --- Selection --- */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: #fff;
}

/* --- Header --- */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(17, 24, 39, 0.92);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
    color: var(--accent-cyan);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { text-shadow: 0 0 8px rgba(0, 212, 255, 0.3); }
    50% { text-shadow: 0 0 20px rgba(0, 212, 255, 0.7); }
}

.logo-text {
    font-family: 'Orbitron', monospace;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-text .accent {
    color: var(--accent-cyan);
}

.brand-tag {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tag-line {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brand-name {
    font-family: 'Orbitron', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-gold);
    letter-spacing: 2px;
    padding: 4px 12px;
    border: 1px solid var(--accent-gold-dim);
    border-radius: 4px;
    background: rgba(198, 151, 73, 0.08);
}

/* --- Settings Section --- */
.settings-section {
    margin-top: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.settings-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.settings-toggle:hover {
    background: var(--bg-card-hover);
}

.toggle-icon {
    font-size: 18px;
}

.chevron {
    margin-left: auto;
    transition: transform var(--transition);
    font-size: 12px;
    color: var(--text-muted);
}

.settings-toggle[aria-expanded="true"] .chevron {
    transform: rotate(180deg);
}

.settings-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.settings-panel.open {
    max-height: 900px;
    padding: 0 20px 20px;
    overflow-y: auto;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.settings-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.settings-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.3px;
}

.input-field {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.input-field:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

select.input-field {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-cyan);
    border: 2px solid var(--bg-primary);
    cursor: pointer;
    transition: var(--transition);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.range-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-cyan);
    border: 2px solid var(--bg-primary);
    cursor: pointer;
}

.settings-actions {
    display: flex;
    flex-direction: row !important;
    align-items: flex-end;
    gap: 12px;
}

.settings-status {
    font-size: 13px;
    color: var(--accent-green);
    opacity: 0;
    transition: var(--transition);
}

.settings-status.show {
    opacity: 1;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-cyan);
    color: #0A0E17;
}

.btn-primary:hover {
    background: #33DDFF;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
}

.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
}

.btn-accent {
    background: var(--accent-gold);
    color: #0A0E17;
}

.btn-accent:hover {
    background: #D4A84B;
    box-shadow: 0 0 20px rgba(198, 151, 73, 0.3);
    transform: translateY(-1px);
}

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

.btn-ghost:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: var(--danger);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* --- Upload Section --- */
.upload-section {
    margin-top: 24px;
}

.upload-zone {
    background: var(--glass-bg);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.08);
}

.upload-zone.drag-over {
    border-style: solid;
    transform: scale(1.01);
}

.upload-icon {
    color: var(--text-muted);
    margin-bottom: 16px;
    transition: var(--transition);
}

.upload-zone:hover .upload-icon,
.upload-zone.drag-over .upload-icon {
    color: var(--accent-cyan);
}

.upload-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.upload-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.file-input {
    display: none;
}

/* --- Status Bar --- */
.status-bar {
    margin-top: 20px;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.status-divider {
    color: var(--border-color);
}

.status-processing {
    color: var(--accent-gold);
}

.status-done {
    color: var(--accent-green);
}

.hidden {
    display: none !important;
}

/* --- Gallery Section --- */
.gallery-section {
    margin-top: 24px;
    margin-bottom: 48px;
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.gallery-title {
    font-family: 'Orbitron', monospace;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-primary);
}

.gallery-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
    font-size: 15px;
}

/* --- Image Card --- */
.image-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.image-card:hover {
    border-color: var(--border-accent);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.08);
    transform: translateY(-2px);
}

.image-card-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-primary);
}

.image-card-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: opacity 0.4s ease;
}

.image-card-preview .watermarked-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Before/after toggle on hover */
.image-card:not(.show-original) .watermarked-img {
    opacity: 1;
}

.image-card:not(.show-original) .original-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
}

.image-card.show-original .watermarked-img {
    opacity: 0;
}

.image-card.show-original .original-img {
    opacity: 1;
}

.preview-label {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.75);
    color: var(--accent-gold);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
    pointer-events: none;
    transition: var(--transition);
}

.image-card.show-original .preview-label {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

.image-card-info {
    padding: 14px 16px;
}

.image-card-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 4px;
}

.image-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.image-card-actions {
    display: flex;
    gap: 8px;
}

.image-card-actions .btn {
    flex: 1;
    padding: 8px 12px;
    font-size: 13px;
}

.btn-download {
    background: var(--accent-cyan);
    color: #0A0E17;
}

.btn-download:hover {
    background: #33DDFF;
}

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

.btn-remove:hover {
    color: var(--danger);
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.08);
}

/* --- Watermark Preview Indicator --- */
.watermark-badge {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--accent-gold);
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(4px);
}

.watermark-badge::before {
    content: '◆';
    font-size: 8px;
}

/* --- Processing Overlay --- */
.processing-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 23, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    z-index: 5;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.processing-text {
    font-size: 13px;
    color: var(--text-secondary);
}

/* --- Footer --- */
.footer {
    margin-top: auto;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer .accent {
    color: var(--accent-gold);
    font-weight: 600;
}

.footer-subtle {
    font-size: 12px !important;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        text-align: center;
    }

    .logo-text {
        font-size: 18px;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .upload-zone {
        padding: 32px 16px;
    }

    .upload-title {
        font-size: 16px;
    }

    .gallery-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .image-card-actions {
        flex-direction: column;
    }

    .settings-toggle {
        font-size: 14px;
        padding: 14px 16px;
    }
}

/* ============================
   Logo Upload Area
   ============================ */
.settings-group-full {
    grid-column: 1 / -1;
}

.logo-upload-area {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
}

.logo-upload-preview {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-upload-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.logo-placeholder {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.2;
    padding: 4px;
}

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

.btn-small {
    padding: 6px 14px;
    font-size: 12px;
}

/* ============================
   Color Picker
   ============================ */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-input {
    -webkit-appearance: none;
    appearance: none;
    width: 44px;
    height: 44px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: none;
    padding: 2px;
    transition: var(--transition);
}

.color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-input::-moz-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-input:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

/* ============================
   Toggle Switch
   ============================ */
.toggle-switch {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 48px;
    height: 26px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 13px;
    transition: var(--transition);
    flex-shrink: 0;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.toggle-switch input:checked + .toggle-slider::after {
    left: 24px;
    background: #0A0E17;
}

.toggle-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 28px;
}

.toggle-switch input:checked ~ .toggle-label {
    color: var(--accent-cyan);
}

/* ============================
   Features Section
   ============================ */
.features-section {
    margin-top: 24px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--border-accent);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.06);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-family: 'Orbitron', monospace;
    letter-spacing: 0.5px;
}

.feature-card p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}