/**
 * IMAGE-TO-PDF.CSS - Image to PDF Converter
 */

:root {
    --bg: #f7f7f8;
    --bg-white: #ffffff;
    --text: #1a1a1a;
    --text-secondary: #666666;
    --text-muted: #999999;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: rgba(239, 68, 68, 0.1);
    --success: #22c55e;
    --success-light: rgba(34, 197, 94, 0.1);
    --border: #e5e5e5;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --container: 1100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, select { font: inherit; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* Header */
.header { background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 14px 0; }
.header__inner { display: flex; align-items: center; justify-content: space-between; }
.back-btn { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: #f5f5f5; border-radius: 10px; color: #333; margin-right: 12px; transition: all 0.2s; text-decoration: none; }
.back-btn:hover { background: var(--primary); color: white; }
.back-btn svg { width: 20px; height: 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; }
.logo__icon { width: 28px; height: 28px; color: var(--primary); }
.nav { display: flex; gap: 4px; }
.nav__link { padding: 10px 18px; font-size: 14px; font-weight: 500; color: var(--text-secondary); border-radius: 6px; transition: all 0.2s; }
.nav__link:hover { color: var(--text); background: var(--bg); }
.nav__link--active { color: var(--primary); }

/* Pages */
.page { display: none; flex: 1; }
.page.active { display: flex; align-items: center; justify-content: center; }

/* Upload Page */
.upload-box {
    text-align: center;
    padding: 60px 20px;
    max-width: 600px;
    margin: 0 auto;
}

.upload-title { font-size: 42px; font-weight: 700; margin-bottom: 16px; }
.upload-desc { font-size: 18px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 40px; }
.upload-desc .highlight { color: var(--primary); }

.dropzone { display: flex; flex-direction: column; align-items: center; }

.upload-btn {
    display: inline-flex;
    padding: 18px 48px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow);
}

.upload-btn:hover { background: var(--primary-hover); transform: translateY(-2px); }

.upload-hint { margin-top: 16px; font-size: 14px; color: var(--text-muted); }

/* Editor Page */
#page-editor.active { display: flex; align-items: stretch; }

.editor { display: flex; width: 100%; min-height: calc(100vh - 120px); }

.editor__images { flex: 1; padding: 24px; display: flex; flex-direction: column; overflow: hidden; }

.editor__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }

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

.add-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
}

.badge {
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-content: flex-start;
    flex: 1;
    overflow-y: auto;
}

.img-card {
    position: relative;
    width: 140px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: grab;
    transition: transform 0.2s, box-shadow 0.2s;
}

.img-card:hover { box-shadow: var(--shadow); }
.img-card.dragging { opacity: 0.5; transform: scale(0.95); }

.img-card img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fafafa; }

.img-card__order {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border-radius: 50%;
}

.img-card__remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.5);
    border-radius: 50%;
    color: white;
    opacity: 0;
    transition: opacity 0.2s;
}

.img-card:hover .img-card__remove { opacity: 1; }
.img-card__remove:hover { background: #ef4444; }
.img-card__remove svg { width: 12px; height: 12px; }

/* Panel */
.editor__panel {
    width: 360px;
    padding: 32px;
    background: var(--bg-white);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.panel-title { font-size: 18px; font-weight: 600; margin-bottom: 24px; text-align: center; }

/* Setting Groups */
.setting-group { margin-bottom: 20px; }
.setting-group > label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 10px; }

/* Select */
.select-wrap { position: relative; }
.select-wrap select {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-white);
    appearance: none;
    cursor: pointer;
}

.select-wrap::after {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-top-color: var(--text-muted);
    pointer-events: none;
}

/* Orientation Buttons */
.orientation-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.orient-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    font-size: 13px;
    font-weight: 500;
    background: var(--bg);
    border: 2px solid transparent;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.orient-btn svg { width: 20px; height: 20px; }
.orient-btn:hover { border-color: var(--primary); }
.orient-btn.active { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

/* Margin & Fit Buttons */
.margin-btns, .fit-btns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.fit-btns { grid-template-columns: repeat(3, 1fr); }

.margin-btn, .fit-btn {
    padding: 10px 8px;
    font-size: 12px;
    font-weight: 500;
    background: var(--bg);
    border: 2px solid transparent;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.margin-btn:hover, .fit-btn:hover { border-color: var(--primary); }
.margin-btn.active, .fit-btn.active { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

/* Convert Button */
.convert-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px;
    margin-top: auto;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border-radius: var(--radius-lg);
    transition: all 0.2s;
}

.convert-btn:hover:not(:disabled) { background: var(--primary-hover); }
.convert-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.convert-btn svg { width: 20px; height: 20px; }

.privacy-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 13px;
    color: var(--success);
}

.privacy-note svg { width: 14px; height: 14px; }

/* Download Page */
#page-download.active { display: flex; }

.download-box {
    text-align: center;
    padding: 40px 20px;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

.success-icon { width: 80px; height: 80px; margin: 0 auto 24px; color: var(--success); }
.success-icon svg { width: 100%; height: 100%; }

.download-title { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.download-info { font-size: 16px; color: var(--text-secondary); margin-bottom: 24px; }

/* PDF Preview */
.pdf-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.pdf-icon { width: 48px; height: 48px; color: var(--primary); flex-shrink: 0; }
.pdf-name { font-size: 15px; font-weight: 600; }
.pdf-size { font-size: 13px; color: var(--text-muted); margin-left: auto; }

/* Download Button */
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 40px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--success);
    border-radius: var(--radius-lg);
    transition: all 0.2s;
    margin-bottom: 24px;
}

.download-btn:hover { background: #16a34a; transform: translateY(-2px); }
.download-btn svg { width: 22px; height: 22px; }

/* Compression Options */
.compression-options {
    margin-bottom: 24px;
    padding: 20px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--primary);
}

.compression-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
    text-align: center;
}

.compression-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.comp-btn {
    flex: 1;
    max-width: 120px;
    padding: 12px 8px;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.comp-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.comp-btn.active {
    border-color: var(--primary);
    background: var(--primary-light);
}

.comp-icon {
    font-size: 20px;
    display: block;
    margin-bottom: 4px;
}

.comp-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    display: block;
}

.comp-desc {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
}

.compression-note {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 10px;
}

/* Share Section */
.share-section { margin-bottom: 24px; padding: 20px; background: var(--bg); border-radius: var(--radius-lg); }
.share-label { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }

.share-buttons { display: flex; justify-content: center; gap: 10px; }

.share-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.share-btn svg { width: 20px; height: 20px; }

.share-btn--facebook { background: #1877f2; color: white; }
.share-btn--facebook:hover { background: #0d65d9; }

.share-btn--twitter { background: #1da1f2; color: white; }
.share-btn--twitter:hover { background: #0c8bd9; }

.share-btn--whatsapp { background: #25d366; color: white; }
.share-btn--whatsapp:hover { background: #1da851; }

.share-btn--linkedin { background: #0077b5; color: white; }
.share-btn--linkedin:hover { background: #005e8f; }

.share-btn--copy { background: var(--bg-white); border: 1px solid var(--border); color: var(--text-secondary); }
.share-btn--copy:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

/* More Actions */
.more-actions { display: flex; align-items: center; justify-content: center; gap: 16px; }
.link-btn { font-size: 14px; font-weight: 500; color: var(--primary); }
.link-btn:hover { text-decoration: underline; }
.divider { color: var(--text-muted); }

/* Processing */
.processing {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.processing.active { opacity: 1; visibility: visible; }

.processing__modal { text-align: center; }

.spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.processing__modal p { font-size: 16px; color: var(--text-secondary); margin-bottom: 16px; }

.progress { width: 200px; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.progress__bar { height: 100%; width: 0; background: var(--primary); transition: width 0.2s; }

/* Footer */
.footer { padding: 20px; text-align: center; font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border); background: var(--bg-white); margin-top: auto; }

/* Responsive */
@media (max-width: 900px) {
    .editor { flex-direction: column; }
    .editor__panel { width: 100%; border-left: none; border-top: 1px solid var(--border); }
}

@media (max-width: 600px) {
    .upload-title { font-size: 28px; }
    .nav { display: none; }
    .margin-btns { grid-template-columns: repeat(2, 1fr); }
    .img-card { width: 100px; }
    .share-btn { width: 40px; height: 40px; }
    .pdf-preview { flex-direction: column; text-align: center; }
    .pdf-size { margin-left: 0; }
}