/* ============================================
   PNG to JPG Converter - Stylesheet
   Prefix: ptj-
   Load order: custom_styles.css FIRST, then this file
   ============================================ */

:root {
    --ptj-primary:       #3399cc;
    --ptj-primary-light: rgba(51,153,204,0.12);
    --ptj-primary-dark:  #2277aa;
    --ptj-success:       #339966;
    --ptj-success-light: rgba(51,153,102,0.12);
    --ptj-danger:        #e64e4e;
    --ptj-danger-light:  rgba(230,78,78,0.10);
    --ptj-warning:       #d97706;
    --ptj-warning-light: rgba(217,119,6,0.10);
    --ptj-transition:    0.25s;
}

/* ============================================
   HEADER
   ============================================ */

.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.ptj-icon-wrapper {
    width: 58px;
    height: 58px;
    background: var(--ptj-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    transition: background-color var(--ptj-transition);
}

.ptj-icon-wrapper svg,
.ptj-icon-wrapper i { width: 26px; height: 26px; }

.tool-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    margin: 0;
    color: var(--ptj-primary);
    letter-spacing: -0.02em;
}

.tool-description {
    font-size: 1.05rem;
    color: var(--text-secondary, #475569);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.tool-description a { color: var(--ptj-primary); }

/* ============================================
   MAIN TOOL AREA
   ============================================ */

.tool-main {
    background: var(--card-bg, #fff);
    border-radius: 24px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.08);
    overflow: visible !important; /* never clip scrollbars inside */
    border: 1px solid var(--border-color, #e2e8f0);
    transition: background-color var(--ptj-transition), border-color var(--ptj-transition);
    margin-bottom: 2rem;
}

/* ============================================
   UPLOAD SECTION
   ============================================ */

.upload-section { padding: 3rem; }

.upload-area {
    border: 2px dashed var(--border-color, #e2e8f0);
    border-radius: 16px;
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--card-secondary, #f8fafc);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--ptj-primary-light);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--ptj-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.upload-area:hover::before,
.upload-area.dragover::before { opacity: 1; }

.upload-content { position: relative; z-index: 1; }

.upload-icon {
    color: var(--ptj-primary);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.upload-area:hover .upload-icon { transform: translateY(-4px); }

.upload-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    margin: 0 0 0.4rem;
}

.upload-subtitle {
    color: var(--text-secondary, #475569);
    margin: 0 0 1rem;
    font-size: 0.95rem;
}

.upload-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--ptj-primary-light);
    color: var(--ptj-primary);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ============================================
   EDITOR SECTION
   ============================================ */

.editor-section { padding: 0; }

.ptj-files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 1.5rem;
    background: var(--card-secondary, #f8fafc);
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    transition: background-color var(--ptj-transition);
}

.ptj-files-header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary, #1e293b);
}

.ptj-files-header-left svg,
.ptj-files-header-left i { color: var(--ptj-primary); }

.ptj-btn-text {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: none;
    border: none;
    color: var(--ptj-primary);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
    transition: background-color 0.2s;
    font-family: inherit;
}

.ptj-btn-text:hover { background: var(--ptj-primary-light); }

/* Files list */
.ptj-files-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    max-height: 220px;
    overflow-y: auto;
}

.ptj-file-item {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    background: var(--card-secondary, #f8fafc);
    transition: all 0.2s;
    max-width: 260px;
    min-width: 0;
}

.ptj-file-item:hover {
    border-color: var(--ptj-primary);
    background: var(--ptj-primary-light);
}

.ptj-file-preview {
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background:
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
    background-color: #e0e0e0;
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .ptj-file-preview {
    background-color: #334155;
}

[data-theme="dark"] .ptj-file-preview {
    background-image:
        linear-gradient(45deg, #334155 25%, transparent 25%),
        linear-gradient(-45deg, #334155 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #334155 75%),
        linear-gradient(-45deg, transparent 75%, #334155 75%);
    background-color: #475569;
}

.ptj-file-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.ptj-file-info {
    flex: 1;
    min-width: 0;
}

.ptj-file-name {
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.78rem;
    max-width: 150px;
}

.ptj-file-meta {
    font-size: 0.68rem;
    color: var(--text-muted, #64748b);
    margin-top: 0.1rem;
}

.ptj-file-remove {
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
    padding: 0;
}

.ptj-file-remove:hover { background: var(--ptj-danger); color: #fff; }
.ptj-file-remove svg,
.ptj-file-remove i { width: 13px !important; height: 13px !important; }

/* ============================================
   SETTINGS PANEL
   ============================================ */

.ptj-settings-panel { padding: 1.5rem; }

.ptj-panel-header { margin-bottom: 1.25rem; }

.ptj-panel-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    margin: 0;
}

.ptj-panel-header h3 svg,
.ptj-panel-header h3 i { color: var(--ptj-primary); }

.ptj-setting-row { margin-bottom: 1.25rem; }

.ptj-section-label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    margin-bottom: 0.65rem;
}

.ptj-section-label svg,
.ptj-section-label i { color: var(--ptj-primary); width: 15px; height: 15px; }

/* Background color buttons */
.ptj-bg-options {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.ptj-bg-btn {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 2px solid var(--border-color, #e2e8f0);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    flex-shrink: 0;
}

.ptj-bg-btn:hover { transform: scale(1.1); }

.ptj-bg-btn.active {
    border-color: var(--ptj-primary);
    box-shadow: 0 0 0 3px var(--ptj-primary-light);
}

.ptj-color-pick {
    width: 34px !important;
    height: 34px !important;
    border: 2px solid var(--border-color, #e2e8f0) !important;
    border-radius: 999px !important;
    cursor: pointer;
    padding: 0 !important;
    background: none !important;
    box-shadow: none !important;
}

/* Quality slider */
.ptj-quality-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.4rem;
}

.ptj-slider {
    flex: 1;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(to right, var(--ptj-danger), var(--ptj-warning), var(--ptj-success));
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.ptj-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--card-bg, #fff);
    border: 3px solid var(--ptj-primary);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
    transition: all 0.2s;
}

.ptj-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 0 4px var(--ptj-primary-light);
}

.ptj-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--card-bg, #fff);
    border: 3px solid var(--ptj-primary);
    cursor: pointer;
}

.ptj-quality-badge {
    min-width: 52px;
    text-align: center;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--ptj-primary);
    background: var(--ptj-primary-light);
    padding: 0.3rem 0.65rem;
    border-radius: 8px;
}

.ptj-slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-muted, #64748b);
    margin-bottom: 0.875rem;
}

/* Quality presets */
.ptj-presets {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.ptj-preset-label {
    font-size: 0.78rem;
    color: var(--text-muted, #64748b);
    font-weight: 500;
}

.ptj-preset-btn {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 999px;
    background: var(--card-bg, #fff);
    color: var(--text-secondary, #475569);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.ptj-preset-btn:hover { border-color: var(--ptj-primary); color: var(--ptj-primary); }

.ptj-preset-btn.active {
    background: var(--ptj-primary);
    color: #fff;
    border-color: var(--ptj-primary);
}

/* Info notes */
.ptj-note {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    padding: 0.875rem 1rem;
    background: var(--card-secondary, #f8fafc);
    border-radius: 10px;
    border: 1px solid var(--border-color, #e2e8f0);
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary, #475569);
    line-height: 1.5;
}

.ptj-note svg,
.ptj-note i {
    color: var(--ptj-primary);
    flex-shrink: 0;
    margin-top: 1px;
    width: 15px !important;
    height: 15px !important;
}

.ptj-note strong { color: var(--text-primary, #1e293b); font-weight: 600; }

/* ============================================
   ACTION BAR
   ============================================ */

.ptj-action-bar {
    display: flex;
    justify-content: center;
    gap: 0.875rem;
    padding: 1.25rem 1.5rem;
    background: var(--card-secondary, #f8fafc);
    border-top: 1px solid var(--border-color, #e2e8f0);
    transition: background-color var(--ptj-transition);
}

/* Buttons */
.ptj-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.8rem 1.6rem;
    border: none;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    font-family: inherit;
}

.ptj-btn-primary {
    background: var(--ptj-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(51,153,204,0.25);
}

.ptj-btn-primary:hover {
    background: var(--ptj-primary-dark);
    box-shadow: 0 6px 20px rgba(51,153,204,0.35);
    transform: translateY(-1px);
    color: #fff;
}

.ptj-btn-secondary {
    background: var(--card-bg, #fff);
    color: var(--text-secondary, #475569);
    border: 1px solid var(--border-color, #e2e8f0) !important;
}

.ptj-btn-secondary:hover {
    border-color: var(--ptj-primary) !important;
    color: var(--ptj-primary);
}

/* ============================================
   PROCESSING OVERLAY - compress-gif pattern
   ============================================ */

.ptj-processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
}

.ptj-processing-content {
    background: var(--card-bg, #fff);
    border-radius: 24px;
    padding: 2rem 2.5rem;
    text-align: center;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.2);
    min-width: 340px;
    max-width: 440px;
    width: 90%;
    border: 1px solid var(--border-color, #e2e8f0);
}

/* Stage dots */
.ptj-progress-stages {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 1.5rem;
}

.ptj-stage-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-secondary, #475569);
    transition: color 0.3s;
}

.ptj-stage-dot i,
.ptj-stage-dot svg {
    width: 20px !important;
    height: 20px !important;
    padding: 6px;
    background: var(--card-secondary, #f1f5f9);
    border-radius: 50%;
    transition: all 0.3s;
    box-sizing: content-box !important;
    display: block;
}

.ptj-stage-dot span {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.ptj-stage-dot.active i,
.ptj-stage-dot.active svg { background: var(--ptj-primary); color: #fff; }
.ptj-stage-dot.active      { color: var(--ptj-primary); }
.ptj-stage-dot.done i,
.ptj-stage-dot.done svg    { background: var(--ptj-success); color: #fff; }
.ptj-stage-dot.done        { color: var(--ptj-success); }

.ptj-stage-connector {
    width: 28px;
    height: 2px;
    background: var(--border-color, #e2e8f0);
    margin: 0 0.25rem 1rem;
    flex-shrink: 0;
}

/* Progress bar */
.ptj-progress-bar-container {
    width: 100%;
    background: var(--card-secondary, #f1f5f9);
    border-radius: 999px;
    height: 8px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.ptj-progress-bar {
    height: 100%;
    background: var(--ptj-primary);
    border-radius: 999px;
    width: 0%;
    transition: width 0.4s ease;
}

.ptj-processing-status {
    color: var(--text-primary, #1e293b);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0 0 0.25rem;
}

.ptj-progress-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ptj-primary);
    margin: 0;
}

/* ============================================
   ERROR MESSAGE
   ============================================ */

.ptj-error {
    margin: 1.25rem;
    padding: 1rem 1.25rem;
    background: var(--ptj-danger-light);
    border-radius: 10px;
    color: var(--ptj-danger);
    transition: background-color var(--ptj-transition);
}

.ptj-error-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.ptj-error-content svg,
.ptj-error-content i { flex-shrink: 0; width: 18px !important; height: 18px !important; }

.ptj-error-contact {
    font-size: 0.82rem;
    margin: 0;
    color: var(--text-secondary, #475569);
}

.ptj-error-contact a { color: var(--ptj-primary); text-decoration: underline; }

/* ============================================
   RESULTS SECTION
   ============================================ */

.results-section { padding: 2rem; text-align: center; }

.ptj-results-header { margin-bottom: 1.5rem; }

.ptj-success-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 0.875rem;
    background: var(--ptj-success-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ptj-success);
}

.ptj-results-header h2 {
    font-size: 1.4rem;
    color: var(--ptj-success);
    margin: 0 0 0.4rem;
}

.ptj-results-header p {
    color: var(--text-secondary, #475569);
    margin: 0;
    font-size: 0.9rem;
}

/* Converted files list */
.ptj-converted-list {
    text-align: left;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 12px;
    overflow: hidden;
    max-height: 320px;
    overflow-y: auto;
}

.ptj-converted-item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    transition: background 0.2s;
}

.ptj-converted-item:last-child { border-bottom: none; }
.ptj-converted-item:hover { background: var(--card-secondary, #f8fafc); }

.ptj-converted-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--ptj-success-light);
    color: var(--ptj-success);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ptj-converted-info {
    flex: 1;
    min-width: 0;
}

.ptj-converted-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary, #1e293b);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ptj-converted-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted, #64748b);
    margin-top: 0.2rem;
}

.ptj-size-reduction {
    background: var(--ptj-success-light);
    color: var(--ptj-success);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.72rem;
}

.ptj-size-increase {
    background: var(--ptj-danger-light);
    color: var(--ptj-danger);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.72rem;
}

.ptj-size-warning {
    display: flex;
    gap: 0.65rem;
    padding: 0.875rem 1.25rem;
    background: rgba(230,78,78,0.06);
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    align-items: flex-start;
}

[data-theme="dark"] .ptj-size-warning { background: rgba(230,78,78,0.10); }

.ptj-size-warning-icon { color: var(--ptj-danger); flex-shrink: 0; margin-top: 1px; }

.ptj-size-warning-text {
    font-size: 0.845rem;
    color: var(--text-secondary, #475569);
    line-height: 1.5;
}

.ptj-size-warning-text strong { color: var(--ptj-danger); }

.ptj-method-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 2px 5px;
    border-radius: 4px;
    background: var(--ptj-warning-light);
    color: var(--ptj-warning);
    margin-left: 6px;
    vertical-align: middle;
}

.ptj-download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: var(--ptj-primary);
    color: #fff;
    text-decoration: none;
    transition: all 0.2s;
    flex-shrink: 0;
}

.ptj-download-btn:hover {
    background: var(--ptj-primary-dark);
    transform: scale(1.1);
    color: #fff;
}

/* Results stats */
.ptj-results-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--card-secondary, #f8fafc);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    border: 1px solid var(--border-color, #e2e8f0);
}

.ptj-stat { text-align: center; }

.ptj-stat-highlight {
    background: var(--ptj-primary);
    padding: 0.65rem 1.1rem;
    border-radius: 10px;
}

.ptj-stat-highlight .ptj-stat-label { color: rgba(255,255,255,0.8); }
.ptj-stat-highlight .ptj-stat-value { color: #fff; }

.ptj-stat-savings {
    background: var(--ptj-success-light);
    padding: 0.65rem 1.1rem;
    border-radius: 10px;
}

.ptj-stat-savings .ptj-stat-label { color: var(--ptj-success); }
.ptj-stat-savings .ptj-stat-value { color: var(--ptj-success); font-weight: 700; }

.ptj-stat-savings-negative .ptj-stat-value { color: var(--ptj-danger) !important; }

.ptj-stat-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.ptj-stat-value {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
}

.ptj-stat-arrow { color: var(--text-muted, #64748b); }

.ptj-results-actions {
    display: flex;
    justify-content: center;
    gap: 0.875rem;
    flex-wrap: wrap;
}

/* ============================================
   RELATED TOOLS
   ============================================ */

.ptj-related-tools {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1rem 1.25rem;
    background: var(--card-bg, #fff);
    border-radius: 16px;
    border: 1px solid var(--border-color, #e2e8f0);
    transition: background-color var(--ptj-transition), border-color var(--ptj-transition);
}

.ptj-related-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted, #64748b);
    white-space: nowrap;
}

.ptj-related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.ptj-related-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    background: var(--card-secondary, #f8fafc);
    color: var(--text-secondary, #475569);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.ptj-related-link:hover {
    background: var(--ptj-primary-light);
    color: var(--ptj-primary);
    border-color: var(--ptj-primary);
}

/* ============================================
   INFO SECTIONS - white cards with border
   ============================================ */

.ptj-info-sections {
    display: grid;
    gap: 1.5rem;
    margin-top: 1rem;
}

.ptj-info-card {
    background: var(--card-bg, #fff);
    border-radius: 16px;
    padding: 1.75rem;
    border: 1px solid var(--border-color, #e2e8f0);
    transition: background-color var(--ptj-transition), border-color var(--ptj-transition);
}

.ptj-info-card h2 {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.2rem;
    color: var(--text-primary, #1e293b);
    margin: 0 0 1.25rem;
}

.ptj-info-card h2 svg,
.ptj-info-card h2 i { color: var(--ptj-primary); flex-shrink: 0; }

/* Steps list */
.ptj-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: ptj-step;
}

.ptj-steps li {
    position: relative;
    padding: 0.7rem 0 0.7rem 2.5rem;
    counter-increment: ptj-step;
    color: var(--text-secondary, #475569);
    line-height: 1.6;
    font-size: 0.9rem;
}

.ptj-steps li:not(:last-child) { border-bottom: 1px solid var(--border-color, #e2e8f0); }

.ptj-steps li::before {
    content: counter(ptj-step);
    position: absolute;
    left: 0; top: 0.7rem;
    width: 22px; height: 22px;
    background: var(--ptj-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ptj-steps a { color: var(--ptj-primary); text-decoration: none; font-weight: 500; }
.ptj-steps a:hover { text-decoration: underline; }

/* Format/quality explains */
.ptj-explains { display: grid; gap: 0.875rem; }

.ptj-explain {
    display: flex;
    gap: 0.875rem;
    align-items: flex-start;
    padding: 0.875rem;
    background: var(--card-secondary, #f8fafc);
    border-radius: 10px;
}

.ptj-tag {
    flex-shrink: 0;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    margin-top: 1px;
    white-space: nowrap;
}

.ptj-tag-blue   { background: #3399cc; }
.ptj-tag-red    { background: #e64e4e; }
.ptj-tag-green  { background: #339966; }
.ptj-tag-orange { background: #d97706; }

.ptj-explain p {
    margin: 0;
    color: var(--text-secondary, #475569);
    font-size: 0.875rem;
    line-height: 1.6;
}

.ptj-explain a { color: var(--ptj-primary); text-decoration: none; font-weight: 500; }
.ptj-explain a:hover { text-decoration: underline; }

/* FAQ */
.ptj-faq-list { display: grid; gap: 0.6rem; }

.faq-item {
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-item:hover { border-color: var(--ptj-primary); }

.faq-question {
    width: 100%;
    padding: 0.9rem 1.1rem;
    background: var(--card-secondary, #f8fafc);
    border: none;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.875rem;
    transition: background-color 0.2s;
    font-family: inherit;
}

.faq-question:hover { background: var(--card-bg, #fff); }

.faq-question svg,
.faq-question i {
    color: var(--ptj-primary);
    transition: transform 0.3s;
    flex-shrink: 0;
    width: 18px !important;
    height: 18px !important;
}

.faq-item.open .faq-question { background: var(--card-bg, #fff); border-bottom: 1px solid var(--border-color, #e2e8f0); }
.faq-item.open .faq-question svg,
.faq-item.open .faq-question i { transform: rotate(180deg); }

.faq-answer { display: none; padding: 0.9rem 1.1rem; background: var(--card-bg, #fff); }
.faq-item.open .faq-answer { display: block; }

.faq-answer p { margin: 0; color: var(--text-secondary, #475569); line-height: 1.7; font-size: 0.875rem; }
.faq-answer a { color: var(--ptj-primary); text-decoration: none; font-weight: 500; }
.faq-answer a:hover { text-decoration: underline; }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .tool-container { padding: 1rem; }
    .upload-section { padding: 1.5rem; }
    .upload-area { padding: 2.5rem 1.25rem; }
    .ptj-settings-panel { padding: 1.25rem; }

    .ptj-action-bar { flex-wrap: wrap; }
    .ptj-btn { width: 100%; }

    .ptj-results-stats { flex-direction: column; gap: 0.875rem; }
    .ptj-stat-arrow { transform: rotate(90deg); }
    .ptj-results-actions { flex-direction: column; }
    .ptj-results-actions .ptj-btn { width: 100%; }

    .ptj-related-tools { flex-direction: column; align-items: flex-start; }

    .ptj-info-card { padding: 1.25rem; }
    .ptj-info-card h2 { font-size: 1.05rem; }

    .faq-question { font-size: 0.85rem; padding: 0.8rem 0.9rem; }
}

@media (max-width: 480px) {
    .ptj-icon-wrapper { width: 46px; height: 46px; }
    .ptj-files-list { padding: 0.75rem 1rem; }
    .ptj-file-item { max-width: 100%; }
    .ptj-explain { flex-direction: column; }
    .ptj-processing-content { padding: 1.75rem 1.25rem; }
}

/* Fade-in animation */
@keyframes ptj-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.editor-section,
.results-section { animation: ptj-fade-in 0.35s ease; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}