/**
 * Image to PDF Converter Stylesheet — Cyber Kendra Theme
 * Dedicated styles for Client-Side Multi-Image to PDF Converter:
 *  - Premium White Card Container & Subtitle Typography
 *  - Dotted Blue Drag & Drop Upload Zone
 *  - Checkbox Options List (Maintain original size / Add Watermark)
 *  - Responsive Thumbnail Grid Preview Station
 *  - High-Visibility Action Buttons (CONVERT TO PDF, RESET, DOWNLOAD PDF)
 *  - Full Mobile & Tablet Responsive Breakpoints
 *
 * CSS Variables from Theme Core:
 *  - Colors: var(--clr-primary), var(--clr-bg), var(--clr-surface), var(--clr-surface-alt), var(--clr-text), var(--clr-text-muted), var(--clr-border)
 *  - Fonts:  var(--font-display), var(--font-ui), var(--font-mono)
 */

/* ── Section Container ────────────────────────────────────────────────────── */
.ck-pdf-section {
    padding-bottom: var(--sp-12, 32px);
    margin: 0 auto;
}

.ck-pdf-hero__sub {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    color: var(--clr-text-muted);
    margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MAIN WHITE CARD CONTAINER
   ═══════════════════════════════════════════════════════════════════════════ */
.ck-pdf-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 16px);
    padding: var(--sp-8, 32px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    gap: var(--sp-6, 24px);
}

.ck-pdf-card__subtitle {
    font-family: var(--font-ui);
    font-size: 0.92rem;
    color: var(--clr-text);
    line-height: 1.5;
}

/* ── DOTTED UPLOAD DROPZONE ──────────────────────────────────────────────── */
.ck-pdf-dropzone {
    position: relative;
    background: var(--clr-surface);
    border: 2px dashed color-mix(in srgb, var(--clr-primary) 50%, transparent);
    border-radius: var(--md, 10px);
    padding: var(--sp-8, 36px) var(--sp-5, 20px);
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
}

.ck-pdf-dropzone:hover,
.ck-pdf-dropzone--active {
    border-color: var(--clr-primary);
    background: color-mix(in srgb, var(--clr-primary) 5%, var(--clr-surface));
}

.ck-pdf-file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 10;
}

.ck-pdf-dropzone__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--sp-3, 12px);
    pointer-events: none;
}

.ck-pdf-dropzone__icon {
    font-size: 2.8rem;
    color: var(--clr-primary);
}

.ck-pdf-dropzone__text {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--clr-text);
    margin: 0;
}

/* ── THUMBNAILS PREVIEW GRID ─────────────────────────────────────────────── */
.ck-pdf-preview-wrapper {
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--sm, 8px);
    padding: var(--sp-4, 16px);
}

.ck-pdf-preview-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--sp-3, 12px);
    color: var(--clr-primary);
}

.ck-pdf-preview-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--clr-text);
    margin: 0;
}

.ck-pdf-thumbnails-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: var(--sp-3, 12px);
}

.ck-pdf-thumb-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: 6px;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
}

.ck-pdf-thumb-img-wrap {
    width: 100%;
    height: 100px;
    border-radius: 4px;
    overflow: hidden;
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ck-pdf-thumb-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.ck-pdf-thumb-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
}

.ck-pdf-thumb-name {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--clr-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.ck-pdf-thumb-remove {
    background: color-mix(in srgb, #ef4444 15%, transparent);
    color: #dc2626;
    border: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.ck-pdf-thumb-remove:hover {
    background: #ef4444;
    color: #ffffff;
}

/* ── CONFIGURATION CHECKBOX LIST ─────────────────────────────────────────── */
.ck-pdf-options-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3, 12px);
}

.ck-pdf-checkbox-item {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.ck-pdf-checkbox {
    accent-color: var(--clr-primary);
    width: 17px;
    height: 17px;
    cursor: pointer;
}

.ck-pdf-checkbox-text {
    font-family: var(--font-ui);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--clr-text);
}

.ck-pdf-muted-tag {
    font-family: var(--font-ui);
    font-size: 0.84rem;
    color: var(--clr-text-muted);
    margin-left: 4px;
}

/* ── ACTION BUTTONS BAR ──────────────────────────────────────────────────── */
.ck-pdf-actions-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-4, 16px);
    flex-wrap: wrap;
    margin-top: 8px;
}

.ck-pdf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 44px;
    padding: 0 24px;
    font-family: var(--font-ui);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    border-radius: var(--sm, 6px);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
    pointer-events: auto;
}

.ck-pdf-btn--primary,
.ck-pdf-btn--convert {
    background: #3b82f6;
    color: #ffffff;
}

.ck-pdf-btn--convert:hover:not(:disabled) {
    background: #2563eb;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.ck-pdf-btn--convert:disabled {
    background: #cbd5e1;
    color: #94a3b8;
    cursor: not-allowed;
    border-color: transparent;
}

.ck-pdf-btn--outline {
    background: #ffffff;
    color: #4f46e5;
    border-color: #c7d2fe;
}

.ck-pdf-btn--outline:hover {
    background: #e0e7ff;
    border-color: #6366f1;
}

.ck-pdf-btn--success {
    background: #10b981;
    color: #ffffff;
}

.ck-pdf-btn--success:hover {
    background: #059669;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

/* ── STATUS BAR ──────────────────────────────────────────────────────────── */
.ck-pdf-status-bar {
    padding: var(--sp-3, 10px) var(--sp-4, 14px);
    border-radius: var(--sm, 6px);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    text-align: center;
}

.ck-pdf-status-bar--info {
    background: color-mix(in srgb, #0284c7 12%, var(--clr-surface));
    color: #0284c7;
    border: 1px solid color-mix(in srgb, #0284c7 30%, transparent);
}

.ck-pdf-status-bar--success {
    background: color-mix(in srgb, #10b981 12%, var(--clr-surface));
    color: #059669;
    border: 1px solid color-mix(in srgb, #10b981 30%, transparent);
    font-weight: 600;
}

/* ── SUPPORTED FORMATS BAR ───────────────────────────────────────────────── */
.ck-pdf-supported-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--sp-3, 12px) var(--sp-4, 16px);
    background: color-mix(in srgb, #0284c7 8%, var(--clr-surface));
    border: 1px solid color-mix(in srgb, #0284c7 25%, transparent);
    border-radius: var(--sm, 8px);
    color: #0284c7;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
}

.ck-pdf-asterisk {
    font-size: 1.1rem;
    font-weight: 700;
}

/* ── Editor Content Area ─────────────────────────────────────────────────── */
.ck-pdf-editor-content {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 8px);
    padding: var(--sp-8, 32px);
    margin-top: var(--sp-8, 32px);
    color: var(--clr-text);
    line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE MEDIA QUERIES (IMAGE TO PDF CONVERTER)
   ═══════════════════════════════════════════════════════════════════════════ */

/* Large Laptops & Standard Desktops (992px to 1200px) */
@media (max-width: 1200px) {
    .ck-pdf-section {
        max-width: 100%;
    }
}

/* Tablets (768px to 991px) */
@media (max-width: 991px) {
    .ck-pdf-card {
        padding: var(--sp-6, 24px);
    }
}

/* Small Tablets & Mobile Landscape (576px to 767px) */
@media (max-width: 767px) {
    .ck-pdf-dropzone {
        padding: var(--sp-6, 24px) var(--sp-4, 16px);
    }

    .ck-pdf-actions-bar {
        gap: 10px;
    }

    .ck-pdf-btn {
        flex: 1 1 auto;
    }
}

/* Mobile Portrait (< 576px) */
@media (max-width: 575px) {
    .ck-pdf-card {
        padding: 16px;
    }

    .ck-pdf-dropzone {
        padding: 20px 12px;
    }

    .ck-pdf-btn {
        width: 100%;
    }

    .ck-pdf-actions-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .ck-pdf-thumbnails-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}