/**
 * PDF Tools Suite - Modern SaaS Design System
 * Primary Accent: #BAFF3A (Electric Lime)
 * Mobile-First, Responsive, Accessible
 */

:root {
    --pdf-accent: #BAFF3A;
    --pdf-accent-hover: #a5e62e;
    --pdf-accent-glow: rgba(186, 255, 58, 0.35);
    --pdf-dark-bg: #0D1117;
    --pdf-dark-card: #161B22;
    --pdf-dark-border: #30363D;
    --pdf-text-dark: #0F172A;
    --pdf-text-muted: #64748B;
    --pdf-text-light: #F8FAFC;
    --pdf-bg-white: #FFFFFF;
    --pdf-bg-subtle: #F8F9FA;
    --pdf-border: #E2E8F0;
    --pdf-border-hover: #CBD5E1;
    --pdf-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --pdf-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
    --pdf-shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
    --pdf-radius-sm: 8px;
    --pdf-radius-md: 14px;
    --pdf-radius-lg: 20px;
    --pdf-radius-full: 9999px;
    --pdf-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --pdf-transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Wrapper */
.pdf-tools-wrapper {
    font-family: var(--pdf-font-family);
    color: var(--pdf-text-dark);
    line-height: 1.6;
    max-width: 1180px;
    margin: 0 auto;
    padding: 16px;
    box-sizing: border-box;
}

.pdf-tools-wrapper *,
.pdf-tools-wrapper *::before,
.pdf-tools-wrapper *::after {
    box-sizing: border-box;
}

/* Typography */
.pdf-hero-header {
    text-align: center;
    margin-bottom: 36px;
    padding: 24px 16px;
}

.pdf-hero-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--pdf-text-dark);
    margin: 0 0 12px 0;
    line-height: 1.15;
}

.pdf-hero-subtitle {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: var(--pdf-text-muted);
    max-width: 680px;
    margin: 0 auto;
    font-weight: 400;
}

/* Privacy & Security Trust Badge */
.pdf-trust-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #F1F5F9;
    border: 1px solid var(--pdf-border);
    padding: 6px 14px;
    border-radius: var(--pdf-radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 16px;
}

.pdf-trust-pill .pdf-pill-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.6);
}

/* ==========================================================================
   Dashboard Grid (7 Tools)
   ========================================================================== */
.pdf-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0 48px 0;
}

.pdf-tool-card {
    background: var(--pdf-bg-white);
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-lg);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--pdf-transition);
    position: relative;
    box-shadow: var(--pdf-shadow-sm);
    text-decoration: none;
    color: inherit;
}

.pdf-tool-card:hover {
    border-color: #000000;
    transform: translateY(-4px);
    box-shadow: var(--pdf-shadow-lg);
}

.pdf-tool-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.pdf-tool-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--pdf-radius-md);
    background: var(--pdf-dark-bg);
    color: var(--pdf-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.pdf-tool-badge {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: var(--pdf-radius-full);
    background: rgba(186, 255, 58, 0.25);
    color: #1E293B;
}

.pdf-tool-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pdf-text-dark);
    margin: 0 0 8px 0;
}

.pdf-tool-description {
    font-size: 0.92rem;
    color: var(--pdf-text-muted);
    margin: 0 0 24px 0;
    line-height: 1.5;
}

.pdf-tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--pdf-dark-bg);
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 20px;
    border-radius: var(--pdf-radius-md);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--pdf-transition);
    width: 100%;
}

.pdf-tool-card:hover .pdf-tool-btn {
    background: var(--pdf-accent);
    color: #000000;
}

/* ==========================================================================
   Tool Workspace UI Shell
   ========================================================================== */
.pdf-tool-workspace {
    background: var(--pdf-bg-white);
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-lg);
    box-shadow: var(--pdf-shadow-md);
    padding: 32px;
    margin-bottom: 40px;
}

@media (max-width: 640px) {
    .pdf-tool-workspace {
        padding: 20px 16px;
    }
}

/* Upload Dropzone */
.pdf-dropzone {
    border: 2px dashed #94A3B8;
    border-radius: var(--pdf-radius-lg);
    background: var(--pdf-bg-subtle);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--pdf-transition);
    position: relative;
    outline: none;
}

.pdf-dropzone:hover,
.pdf-dropzone.pdf-dragover {
    border-color: #000000;
    background: #F1F5F9;
    transform: scale(1.005);
}

.pdf-dropzone.pdf-dragover {
    box-shadow: 0 0 0 4px var(--pdf-accent-glow);
}

.pdf-dropzone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px auto;
    background: var(--pdf-bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0F172A;
    box-shadow: var(--pdf-shadow-sm);
}

.pdf-dropzone-icon svg {
    width: 32px;
    height: 32px;
}

.pdf-dropzone-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--pdf-text-dark);
    margin: 0 0 8px 0;
}

.pdf-dropzone-divider {
    display: inline-block;
    color: var(--pdf-text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    margin: 8px 0;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.pdf-dropzone-formats {
    font-size: 0.85rem;
    color: var(--pdf-text-muted);
    margin-top: 14px;
}

.pdf-btn-browse {
    display: inline-block;
    background: var(--pdf-accent);
    color: #000000;
    font-weight: 700;
    font-size: 1rem;
    padding: 12px 28px;
    border-radius: var(--pdf-radius-full);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--pdf-accent-glow);
    transition: var(--pdf-transition);
    margin: 6px 0;
}

.pdf-btn-browse:hover {
    background: var(--pdf-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--pdf-accent-glow);
}

/* Privacy microcopy in dropzone */
.pdf-privacy-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.82rem;
    color: #475569;
    font-weight: 500;
}

/* File list & previews */
.pdf-file-list-container {
    margin-top: 28px;
}

.pdf-file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.pdf-file-item {
    background: var(--pdf-bg-subtle);
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 12px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--pdf-transition);
}

.pdf-file-item:hover {
    border-color: #94A3B8;
}

.pdf-file-thumb {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: var(--pdf-radius-sm);
    background: #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 8px;
}

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

.pdf-file-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--pdf-text-dark);
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-file-meta {
    font-size: 0.75rem;
    color: var(--pdf-text-muted);
}

.pdf-file-remove-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #FFFFFF;
    border: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--pdf-transition);
}

.pdf-file-remove-btn:hover {
    background: #EF4444;
}

/* Tool Configuration Panels */
.pdf-options-panel {
    background: #F8FAFC;
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.pdf-options-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 16px 0;
    color: var(--pdf-text-dark);
}

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

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

.pdf-option-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #334155;
}

.pdf-select,
.pdf-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-sm);
    background: #FFFFFF;
    font-size: 0.92rem;
    color: var(--pdf-text-dark);
    font-family: inherit;
    outline: none;
    transition: var(--pdf-transition);
}

.pdf-select:focus,
.pdf-input:focus {
    border-color: #0F172A;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
}

/* Radio Pill Selector (e.g. Compression levels) */
.pdf-radio-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.pdf-radio-pill {
    position: relative;
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 14px;
    cursor: pointer;
    background: #FFFFFF;
    transition: var(--pdf-transition);
    text-align: center;
}

.pdf-radio-pill input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.pdf-radio-pill.active {
    border-color: #000000;
    background: #FFFFFF;
    box-shadow: 0 0 0 2px #000000;
}

.pdf-radio-pill-title {
    display: block;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--pdf-text-dark);
    margin-bottom: 4px;
}

.pdf-radio-pill-sub {
    display: block;
    font-size: 0.78rem;
    color: var(--pdf-text-muted);
}

/* Action Controls Bar */
.pdf-action-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
}

.pdf-btn-primary {
    background: var(--pdf-accent);
    color: #000000;
    border: none;
    font-size: 1.05rem;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: var(--pdf-radius-full);
    cursor: pointer;
    box-shadow: 0 4px 14px var(--pdf-accent-glow);
    transition: var(--pdf-transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.pdf-btn-primary:hover:not(:disabled) {
    background: var(--pdf-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--pdf-accent-glow);
}

.pdf-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pdf-btn-secondary {
    background: #F1F5F9;
    color: #334155;
    border: 1px solid var(--pdf-border);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--pdf-radius-full);
    cursor: pointer;
    transition: var(--pdf-transition);
}

.pdf-btn-secondary:hover {
    background: #E2E8F0;
    color: #0F172A;
}

/* ==========================================================================
   Progress UI
   ========================================================================== */
.pdf-progress-container {
    background: #F8FAFC;
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 28px;
    text-align: center;
    margin-top: 24px;
    display: none;
}

.pdf-progress-status-text {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--pdf-text-dark);
    margin-bottom: 12px;
}

.pdf-progress-bar-track {
    width: 100%;
    height: 12px;
    background: #E2E8F0;
    border-radius: var(--pdf-radius-full);
    overflow: hidden;
    margin-bottom: 8px;
    position: relative;
}

.pdf-progress-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #BAFF3A, #7CE000);
    border-radius: var(--pdf-radius-full);
    transition: width 0.25s ease-out;
}

.pdf-progress-percentage {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--pdf-text-muted);
}

/* ==========================================================================
   Result UI
   ========================================================================== */
.pdf-result-card {
    background: #FFFFFF;
    border: 2px solid #10B981;
    border-radius: var(--pdf-radius-lg);
    padding: 36px 24px;
    text-align: center;
    margin-top: 24px;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.08);
    display: none;
}

.pdf-result-icon {
    width: 64px;
    height: 64px;
    background: #ECFDF5;
    color: #10B981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px auto;
    font-size: 32px;
    font-weight: bold;
}

.pdf-result-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: #065F46;
    margin: 0 0 8px 0;
}

.pdf-result-stats {
    font-size: 0.95rem;
    color: #374151;
    margin: 0 0 24px 0;
}

.pdf-result-savings-badge {
    display: inline-block;
    background: #D1FAE5;
    color: #065F46;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--pdf-radius-full);
    margin-left: 8px;
}

.pdf-result-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

/* ==========================================================================
   Error Messages
   ========================================================================== */
.pdf-error-banner {
    background: #FEF2F2;
    border: 1px solid #FCA5A5;
    color: #991B1B;
    border-radius: var(--pdf-radius-md);
    padding: 14px 18px;
    margin-top: 16px;
    font-size: 0.92rem;
    display: none;
    align-items: center;
    gap: 10px;
}

/* ==========================================================================
   Monetization / Ad Slots
   ========================================================================== */
.pdf-ad-slot-top,
.pdf-ad-slot-mid,
.pdf-ad-slot-bottom {
    min-height: 90px;
    background: #F8FAFC;
    border: 1px dashed var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    margin: 24px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.pdf-ad-label {
    position: absolute;
    top: 4px;
    right: 8px;
    font-size: 0.65rem;
    color: #94A3B8;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ==========================================================================
   SEO Content & Structured FAQ Styles
   ========================================================================== */
.pdf-seo-content-container {
    margin-top: 48px;
    border-top: 1px solid var(--pdf-border);
    padding-top: 40px;
}

.pdf-seo-section {
    margin-bottom: 40px;
}

.pdf-seo-heading {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--pdf-text-dark);
    margin: 0 0 20px 0;
    letter-spacing: -0.02em;
}

/* How to Steps */
.pdf-steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.pdf-step-card {
    background: var(--pdf-bg-subtle);
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 20px;
    position: relative;
}

.pdf-step-number {
    display: inline-flex;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--pdf-accent);
    color: #000000;
    font-weight: 800;
    font-size: 0.95rem;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.pdf-step-text {
    font-size: 0.92rem;
    color: #334155;
    margin: 0;
    line-height: 1.5;
}

/* Features list */
.pdf-features-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
}

.pdf-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: #334155;
}

.pdf-feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #BAFF3A;
    color: #000000;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Privacy Guarantee Card */
.pdf-privacy-guarantee-card {
    background: var(--pdf-dark-bg);
    color: #FFFFFF;
    border-radius: var(--pdf-radius-lg);
    padding: 28px 32px;
    margin-bottom: 40px;
}

.pdf-privacy-badge {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.pdf-lock-icon {
    font-size: 2.2rem;
    line-height: 1;
}

.pdf-privacy-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: #FFFFFF;
}

.pdf-privacy-desc {
    font-size: 0.92rem;
    color: #94A3B8;
    margin: 0;
    line-height: 1.6;
}

/* FAQ Accordion */
.pdf-faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pdf-faq-item {
    background: #FFFFFF;
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    overflow: hidden;
    transition: var(--pdf-transition);
}

.pdf-faq-item[open] {
    border-color: #000000;
}

.pdf-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    font-weight: 700;
    font-size: 1rem;
    color: var(--pdf-text-dark);
    cursor: pointer;
    list-style: none;
}

.pdf-faq-question::-webkit-details-marker {
    display: none;
}

.pdf-faq-toggle {
    font-size: 1.4rem;
    font-weight: 400;
    color: #64748B;
    transition: transform 0.2s ease;
}

.pdf-faq-item[open] .pdf-faq-toggle {
    transform: rotate(45deg);
}

.pdf-faq-answer {
    padding: 0 20px 20px 20px;
    font-size: 0.95rem;
    color: #475569;
    line-height: 1.6;
}

.pdf-faq-answer p {
    margin: 0;
}

/* Related Tools Grid */
.pdf-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.pdf-related-card {
    background: var(--pdf-bg-white);
    border: 1px solid var(--pdf-border);
    border-radius: var(--pdf-radius-md);
    padding: 20px;
    text-decoration: none;
    color: inherit;
    transition: var(--pdf-transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pdf-related-card:hover {
    border-color: #000000;
    transform: translateY(-3px);
    box-shadow: var(--pdf-shadow-md);
}

.pdf-related-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #475569;
    background: #F1F5F9;
    padding: 2px 8px;
    border-radius: var(--pdf-radius-full);
    display: inline-block;
    align-self: flex-start;
    margin-bottom: 8px;
}

.pdf-related-name {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 6px 0;
    color: var(--pdf-text-dark);
}

.pdf-related-desc {
    font-size: 0.85rem;
    color: var(--pdf-text-muted);
    margin: 0 0 14px 0;
    line-height: 1.4;
}

.pdf-related-link {
    font-size: 0.88rem;
    font-weight: 700;
    color: #0F172A;
}

.pdf-related-card:hover .pdf-related-link {
    color: #000000;
    text-decoration: underline;
}