/**
 * PASSPORT-PHOTO.CSS - Passport Photo Maker
 * Premium passport/ID photo tool
 */

:root {
    --bg: #f8fafc;
    --bg-white: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: rgba(99, 102, 241, 0.08);
    --accent: #8b5cf6;
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    --border: #e2e8f0;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.12);
    --container: 1200px;
}

*, *::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: 8px; font-size: 16px; font-weight: 700; }
.logo__icon { width: 24px; height: 24px; color: var(--primary); }
.logo__text { font-size: 16px; }
.nav { display: flex; gap: 4px; }
.nav__link { padding: 10px 18px; font-size: 14px; font-weight: 500; color: var(--text-secondary); border-radius: 8px; transition: all 0.2s; }
.nav__link:hover { color: var(--text); background: var(--bg); }
.nav__link--active { color: var(--primary); background: var(--primary-light); }

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

/* Upload Page */
.upload-box {
    text-align: center;
    padding: 40px 20px 60px;
    max-width: 550px;
    margin: 0 auto;
}

.upload-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--primary);
}

.upload-icon svg { width: 100%; height: 100%; }

.upload-title { font-size: 36px; font-weight: 700; margin-bottom: 16px; }
.upload-desc { font-size: 17px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 36px; }
.upload-desc .highlight { color: var(--primary); font-weight: 600; }

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

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    font-size: 17px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.upload-btn:hover { 
    transform: translateY(-3px); 
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
}
.upload-btn svg { width: 22px; height: 22px; }

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

.tips {
    margin-top: 40px;
    padding: 20px 24px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    text-align: left;
}

.tips__title { font-size: 14px; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
.tips__list { font-size: 13px; color: var(--text-secondary); margin-left: 20px; }
.tips__list li { margin-bottom: 4px; }

/* Edit Page */
#page-edit.active { display: flex; align-items: stretch; padding: 0; }

.edit-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    width: 100%;
    min-height: calc(100vh - 120px);
}

/* Preview Section */
.preview-section {
    padding: 24px;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preview-header { text-align: center; margin-bottom: 20px; }
.preview-title { font-size: 18px; font-weight: 600; color: var(--text); }
.preview-subtitle { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* Crop Area */
.crop-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.crop-container {
    position: relative;
    width: 320px;
    height: 360px;
    min-width: 200px;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: grab;
    transition: width 0.3s ease, height 0.3s ease, background-color 0.2s ease;
}

.crop-container:active { cursor: grabbing; }

.crop-container img {
    position: absolute;
    transform-origin: center;
    user-select: none;
    pointer-events: none;
    display: block;
    max-width: none;
    max-height: none;
}

#source-image {
    will-change: transform, width, height, left, top;
}

.crop-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.face-guide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guide-oval {
    width: 55%;
    height: 65%;
    border: 2px dashed rgba(99, 102, 241, 0.5);
    border-radius: 50%;
    margin-top: -8%;
}

.guide-line {
    position: absolute;
    left: 15%;
    right: 15%;
    height: 1px;
    background: rgba(99, 102, 241, 0.3);
}

.guide-line--eyes { top: 35%; }
.guide-line--chin { top: 75%; }

/* Mode Toggle - Auto/Manual */
.mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 6px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.mode-btn:hover {
    color: var(--text);
    background: rgba(0,0,0,0.05);
}

.mode-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
}

.mode-btn svg {
    width: 16px;
    height: 16px;
}

#btn-reset-position {
    margin-left: 4px;
    border-left: 1px solid var(--border);
    padding-left: 12px;
}

/* Crop Controls */
.crop-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    padding: 12px 20px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.control-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--bg);
    transition: all 0.2s;
}

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

.zoom-slider {
    width: 120px;
    height: 6px;
    -webkit-appearance: none;
    background: var(--border);
    border-radius: 3px;
    outline: none;
}

.zoom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

/* Settings Panel */
.settings-panel {
    padding: 28px;
    background: var(--bg-white);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

.panel-title { font-size: 20px; font-weight: 700; color: var(--text); }

/* Setting Groups */
.setting-group { display: flex; flex-direction: column; gap: 10px; }
.setting-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }

.setting-select {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-white);
    cursor: pointer;
    transition: border-color 0.2s;
}

.setting-select:focus { outline: none; border-color: var(--primary); }

/* Size Display */
.size-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.size-box {
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius);
    text-align: center;
}

.size-value { display: block; font-size: 18px; font-weight: 700; color: var(--primary); }
.size-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* Custom Size Header */
.custom-size-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.custom-size-toggle {
    font-size: 12px;
    font-weight: 500;
    color: var(--primary);
    background: var(--primary-light);
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.custom-size-toggle:hover {
    background: var(--primary);
    color: white;
}

.custom-size-toggle.active {
    background: var(--primary);
    color: white;
}

/* Custom Size Panel */
.custom-size-panel {
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius);
    margin-top: 12px;
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
}

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

.size-input-group label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.input-with-unit input {
    width: 60px;
    padding: 10px 8px;
    border: none;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    color: var(--text);
    background: transparent;
    outline: none;
    -moz-appearance: textfield;
}

.input-with-unit input::-webkit-outer-spin-button,
.input-with-unit input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-with-unit span {
    padding: 10px 12px 10px 4px;
    font-size: 13px;
    color: var(--text-muted);
    background: var(--bg);
}

.size-separator {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 18px;
}

.apply-size-btn {
    width: 100%;
    padding: 12px;
    margin-top: 12px;
    font-size: 14px;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.apply-size-btn:hover {
    background: var(--primary-hover);
}

/* Background Options */
.bg-options { display: flex; gap: 8px; flex-wrap: wrap; }

.bg-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    border: 3px solid var(--border);
    padding: 4px;
    transition: all 0.2s;
    cursor: pointer;
}

.bg-btn:hover { border-color: var(--primary); }
.bg-btn.active { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }

.bg-btn span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.1);
}

.bg-btn--custom {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--bg);
}

.bg-btn--custom input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.bg-btn--custom svg { width: 20px; height: 20px; color: var(--text-muted); }

/* Print Options */
.print-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }

.print-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 11px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

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

.print-icon {
    width: 36px;
    height: 28px;
    display: grid;
    gap: 2px;
}

.print-icon div {
    background: currentColor;
    border-radius: 2px;
    opacity: 0.5;
}

.print-icon--1 { grid-template-columns: 1fr; padding: 4px 10px; }
.print-icon--4 { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.print-icon--8 { grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(2, 1fr); }
.print-icon--12 { grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(3, 1fr); }
.print-icon--16 { grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(4, 1fr); }
.print-icon--20 { grid-template-columns: repeat(5, 1fr); grid-template-rows: repeat(4, 1fr); }

.print-icon--full {
    display: flex;
    align-items: center;
    justify-content: center;
}

.print-icon--full svg {
    width: 24px;
    height: 24px;
    opacity: 0.6;
}

.print-info {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* Output Format Toggle */
.output-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.output-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.output-btn svg {
    width: 28px;
    height: 28px;
    opacity: 0.6;
}

.output-btn:hover {
    border-color: var(--primary);
    color: var(--text);
}

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

.output-btn.active svg {
    opacity: 1;
    color: var(--primary);
}

/* A4 Options Panel */
.a4-options {
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.count-input-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.count-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
}

.count-control {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.count-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg);
    border: none;
    transition: all 0.2s;
}

.count-btn:hover {
    background: var(--primary);
    color: white;
}

.count-input {
    flex: 1;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    border: none;
    background: transparent;
    outline: none;
    -moz-appearance: textfield;
}

.count-input::-webkit-outer-spin-button,
.count-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.count-max {
    font-size: 11px;
    color: var(--text-muted);
    text-align: right;
}

/* Layout Preview */
.layout-preview {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.layout-grid {
    display: grid;
    gap: 3px;
    padding: 8px;
    background: white;
    border: 1px dashed var(--border);
    border-radius: 4px;
    aspect-ratio: 210 / 297;
    max-height: 140px;
    width: auto;
    margin: 0 auto;
}

.layout-grid .photo-cell {
    background: var(--primary);
    border-radius: 2px;
    opacity: 0.6;
}

.layout-grid .photo-cell.empty {
    background: transparent;
    border: 1px dashed var(--border);
    opacity: 0.3;
}

.layout-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    font-size: 11px;
}

.layout-arrangement {
    color: var(--text-secondary);
    font-weight: 500;
}

.layout-efficiency {
    color: var(--success);
    font-weight: 500;
}

.layout-efficiency.warning {
    color: #f59e0b;
}

.output-info {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* Control Divider */
.control-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

/* Generate Button */
.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
    margin-top: auto;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
}

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

.privacy-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 12px;
}

.privacy-note svg { width: 14px; height: 14px; color: var(--success); }

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

.download-box {
    text-align: center;
    padding: 40px 24px;
    max-width: 600px;
    margin: 0 auto;
}

.success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    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: 15px; color: var(--text-secondary); margin-bottom: 28px; }

/* Result Preview */
.result-preview { margin-bottom: 28px; text-align: center; }

.result-single, .result-print {
    display: flex;
    justify-content: center;
    align-items: center;
}

.result-single img, .result-print img {
    max-width: 280px;
    max-height: 350px;
    width: auto;
    height: auto;
    object-fit: contain;
    margin: 0 auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.result-print img { max-width: 400px; max-height: 500px; }

/* Download Actions */
.download-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all 0.2s;
}

.download-btn svg { width: 18px; height: 18px; }

.download-btn--primary {
    color: white;
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.download-btn--primary:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.45);
}

.download-btn--secondary {
    color: var(--primary);
    background: var(--primary-light);
}

.download-btn--secondary:hover { background: rgba(37, 99, 235, 0.15); }

/* Specs Card */
.specs-card {
    padding: 20px 24px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    margin-bottom: 28px;
    text-align: left;
}

.specs-card h3 { font-size: 14px; font-weight: 600; margin-bottom: 16px; }

.specs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }

.spec-item {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.spec-label { color: var(--text-muted); }
.spec-value { font-weight: 600; color: var(--text); }

/* Share Section */
.share-section { margin-bottom: 24px; }
.share-label { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }

.share-buttons { display: flex; justify-content: center; gap: 12px; }

.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--twitter { background: #1da1f2; color: white; }
.share-btn--whatsapp { background: #25d366; color: white; }
.share-btn--copy { background: var(--bg); border: 1px solid var(--border); color: var(--text-secondary); }
.share-btn:hover { transform: scale(1.1); }

/* More Actions */
.more-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
}

.link-btn { color: var(--primary); font-weight: 500; }
.link-btn:hover { text-decoration: underline; }
.divider { color: var(--text-muted); }

/* Processing Overlay */
.processing {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.processing.active { display: flex; }

.processing__modal {
    background: var(--bg-white);
    padding: 40px 48px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 20px;
}

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

.processing__text { font-size: 16px; font-weight: 500; }

/* Footer */
.footer {
    padding: 24px 20px;
    text-align: center;
    color: #94a3b8;
    font-size: 13px;
    border-top: 1px solid var(--border);
    background: #0f172a;
}

.footer p {
    color: #94a3b8;
}

/* Responsive */
@media (max-width: 900px) {
    .edit-container { grid-template-columns: 1fr; }
    .settings-panel { border-left: none; border-top: 1px solid var(--border); }
    .preview-section { padding: 20px; min-height: auto; }
    .crop-container { max-width: 280px; max-height: 340px; }
}

@media (max-width: 600px) {
    .nav { display: none; }
    .upload-title { font-size: 28px; }
    .upload-desc { font-size: 15px; }
    .upload-btn { padding: 16px 32px; font-size: 16px; }
    .print-options { grid-template-columns: repeat(2, 1fr); }
    .download-title { font-size: 24px; }
    .specs-grid { grid-template-columns: 1fr; }
}