/* ==========================================================================
   Passport Photo Maker — Premium UI
   ========================================================================== */

/* ===== CSS Variables ===== */
:root {
    --primary: #7c3aed;
    --primary-hover: #6d28d9;
    --primary-light: rgba(124,58,237,0.08);
    --primary-glow: rgba(124,58,237,0.25);
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #10b981;
    --success-hover: #059669;
    --danger: #ef4444;
    --warning: #f59e0b;

    --bg: #0f0f1a;
    --bg-card: rgba(255,255,255,0.04);
    --bg-card-hover: rgba(255,255,255,0.06);
    --bg-elevated: rgba(255,255,255,0.07);
    --surface: rgba(22,22,40,0.85);
    --surface-border: rgba(255,255,255,0.08);
    --surface-border-hover: rgba(255,255,255,0.15);

    --text: #f1f5f9;
    --text-secondary: #a5b4c8;
    --text-muted: #64748b;
    --text-faint: #475569;

    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px rgba(124,58,237,0.15);
    --transition: 0.2s cubic-bezier(.4,0,.2,1);

    --gradient-primary: linear-gradient(135deg, #7c3aed, #a855f7);
    --gradient-header: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
    --gradient-success: linear-gradient(135deg, #10b981, #06b6d4);
    --gradient-magic: linear-gradient(135deg, #ec4899, #8b5cf6);
    --gradient-generate: linear-gradient(135deg, #7c3aed, #ec4899, #f97316);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== Background Decoration ===== */
.bg-decoration {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.12;
    animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
    width: 600px;
    height: 600px;
    background: #7c3aed;
    top: -200px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: #ec4899;
    bottom: -150px;
    right: -100px;
    animation-delay: -7s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: #06b6d4;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* ===== Header ===== */
header {
    background: var(--gradient-header);
    border-bottom: 1px solid var(--surface-border);
    padding: 16px 28px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 12px rgba(124,58,237,0.35);
}

.logo h1 {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #e2e8f0, #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-badge {
    padding: 4px 12px;
    background: rgba(16,185,129,0.15);
    color: #34d399;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    border: 1px solid rgba(16,185,129,0.2);
}

.tagline {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== Site Navigation ===== */
.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.snav-link {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.81rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
    border: 1px solid transparent;
}
.snav-link:hover {
    color: var(--text);
    background: var(--bg-elevated);
    border-color: var(--surface-border);
}
.snav-link--active {
    color: #a78bfa;
    background: rgba(124,58,237,0.12);
    border-color: rgba(124,58,237,0.25);
}

/* ===== Main Layout ===== */
main {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    min-height: calc(100vh - 73px);
    position: relative;
    z-index: 1;
}

/* ===== Controls Panel (Left Sidebar) ===== */
.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.control-section {
    background: var(--gradient-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--radius);
    padding: 22px;
    border: 1px solid var(--surface-border);
    transition: border-color var(--transition);
}

.control-section:hover {
    border-color: var(--surface-border-hover);
}

.control-section h2 {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.01em;
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    border-radius: 9px;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}

/* ===== Drop Zone ===== */
.drop-zone {
    border: 2px dashed rgba(124,58,237,0.3);
    border-radius: var(--radius);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(124,58,237,0.04);
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(124,58,237,0.08) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
}

.drop-zone:hover::before,
.drop-zone.drag-over::before {
    opacity: 1;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(124,58,237,0.08);
}

.drop-zone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 14px;
    background: var(--gradient-primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 6px 20px rgba(124,58,237,0.3);
    transition: transform var(--transition), box-shadow var(--transition);
}

.drop-zone:hover .drop-zone-icon {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(124,58,237,0.4);
}

.drop-title {
    font-size: 0.9rem;
    color: var(--text);
    margin-top: 4px;
}

.drop-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.drop-formats {
    display: inline-block;
    margin-top: 10px;
    padding: 3px 10px;
    background: rgba(255,255,255,0.06);
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 0.03em;
}

/* File Info */
.file-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.2);
    border-radius: var(--radius-sm);
    margin-top: 12px;
    font-size: 0.82rem;
    color: #a78bfa;
    font-weight: 600;
}

/* ===== Control Groups ===== */
.control-group {
    margin-bottom: 16px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.01em;
}

/* API Key Row */
.api-key-row {
    display: flex;
    gap: 8px;
}

.api-key-row input[type="text"],
.api-key-row input[type="password"] {
    flex: 1;
    padding: 8px 12px;
    background: rgba(255,255,255,0.05);
    border: 1.5px solid var(--surface-border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--text);
    outline: none;
    transition: var(--transition);
}

.api-key-row input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}

.help-link {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 8px;
    text-decoration: none;
    transition: color var(--transition);
}

.help-link:hover {
    color: var(--primary);
}

/* ===== Color Options ===== */
.color-options {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.color-btn {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    border: 2px solid rgba(255,255,255,0.1);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
    outline: none;
    position: relative;
}

.color-btn:hover {
    transform: scale(1.12);
    border-color: rgba(255,255,255,0.25);
}

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

.custom-color-input {
    width: 34px;
    height: 34px;
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 0;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: none;
}

.custom-color-input::-webkit-color-swatch-wrapper {
    padding: 3px;
}

.custom-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

/* ===== Size Options (Radio Cards) ===== */
.size-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.radio-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 14px 8px;
    border: 2px solid var(--surface-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    background: var(--bg-card);
}

.radio-card:hover {
    border-color: rgba(124,58,237,0.4);
    background: rgba(124,58,237,0.06);
}

.radio-card.active {
    border-color: var(--primary);
    background: rgba(124,58,237,0.1);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
}

.radio-card input {
    display: none;
}

.radio-card span {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text);
}

.radio-card small {
    font-size: 0.68rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== Range Sliders ===== */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255,255,255,0.1);
    outline: none;
    transition: var(--transition);
}

input[type="range"]:hover {
    background: rgba(255,255,255,0.15);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(124,58,237,0.4);
    transition: var(--transition);
    border: 2px solid rgba(255,255,255,0.2);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 14px rgba(124,58,237,0.5);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    border: 2px solid rgba(255,255,255,0.2);
}

.slider-divider {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin: 18px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--surface-border);
}

/* ===== Number Input ===== */
.input-number {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255,255,255,0.05);
    border: 1.5px solid var(--surface-border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    outline: none;
    transition: var(--transition);
    text-align: center;
    font-family: inherit;
}

.input-number:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    font-size: 0.84rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 9px 16px;
    font-size: 0.78rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(124,58,237,0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124,58,237,0.45);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled,
.btn-generate:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-magic {
    background: var(--gradient-magic);
    color: #fff;
    box-shadow: 0 4px 14px rgba(236,72,153,0.3);
    width: 100%;
}

.btn-magic:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(236,72,153,0.4);
}

.btn-magic:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-generate {
    background: var(--gradient-generate);
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
    color: #fff;
    box-shadow: 0 4px 16px rgba(124,58,237,0.35);
    font-size: 0.92rem;
    padding: 14px 20px;
}

.btn-generate:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(124,58,237,0.45);
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.btn-success {
    background: var(--gradient-success);
    color: #fff;
    box-shadow: 0 4px 14px rgba(16,185,129,0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16,185,129,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--surface-border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: #a78bfa;
    background: rgba(124,58,237,0.08);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: none;
    border: 1.5px solid var(--surface-border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: rgba(239,68,68,0.1);
}

/* ===== Generate Section ===== */
.generate-section {
    background: var(--gradient-card);
    border-color: rgba(124,58,237,0.15);
}

/* ===== Preview Area (Right Side) ===== */
.preview-area {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.preview-section {
    background: var(--gradient-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--surface-border);
}

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

.section-header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
}

.dimension-badge {
    padding: 5px 14px;
    background: rgba(124,58,237,0.12);
    color: #a78bfa;
    font-size: 0.72rem;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 0.02em;
    border: 1px solid rgba(124,58,237,0.2);
}

/* Photo Preview */
.photo-preview-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 340px;
    background: rgba(0,0,0,0.15);
    border-radius: var(--radius-sm);
    padding: 24px;
    border: 1px solid var(--surface-border);
}

.photo-frame {
    position: relative;
    background: #fff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: inline-flex;
    flex-direction: column;
    box-shadow: var(--shadow-md), 0 0 40px rgba(0,0,0,0.1);
}

.canvas-wrapper {
    position: relative;
    line-height: 0;
}

.photo-frame canvas {
    display: block;
    max-width: 280px;
    height: auto;
    cursor: grab;
}

.photo-frame canvas:active {
    cursor: grabbing;
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 50px 40px;
    color: var(--text-muted);
}

.placeholder[hidden] {
    display: none;
}

.placeholder-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.04);
    border: 2px dashed rgba(255,255,255,0.1);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-faint);
    margin-bottom: 4px;
}

.placeholder p {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.placeholder-sub {
    font-size: 0.76rem;
    color: var(--text-muted);
}

/* Guide Overlay — anchored to canvas size only */
.guide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    /* height will match the canvas via JS or stretch to parent */
    bottom: 0;
    pointer-events: none;
    z-index: 10;
    overflow: hidden;
}

.guide-overlay[hidden] {
    display: none;
}

.guide-face {
    position: absolute;
    top: 8%;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 55%;
    border: 2px dashed rgba(124,58,237,0.35);
    border-radius: 50%;
}

.preview-hint {
    text-align: center;
    font-size: 0.76rem;
    color: var(--text-muted);
    margin-top: 12px;
    font-weight: 500;
}

/* Sheet Preview */
.sheet-preview-container {
    display: flex;
    justify-content: center;
    background: rgba(0,0,0,0.15);
    border-radius: var(--radius-sm);
    padding: 20px;
    border: 1px solid var(--surface-border);
}

.sheet-preview-container canvas {
    max-width: 100%;
    height: auto;
    box-shadow: var(--shadow-lg);
    background: #fff;
    border-radius: 4px;
}

.sheet-info {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 14px;
    font-weight: 500;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    gap: 10px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.export-buttons .btn {
    flex: 1;
    min-width: 120px;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15,15,26,0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay[hidden] {
    display: none;
}

.loading-card {
    background: var(--gradient-card);
    border: 1px solid var(--surface-border);
    border-radius: 20px;
    padding: 40px 48px;
    text-align: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.spinner {
    width: 44px;
    height: 44px;
    margin: 0 auto 16px;
    border: 3px solid rgba(124,58,237,0.2);
    border-top-color: #a78bfa;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay p {
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 600;
}

.loading-sub {
    display: block;
    margin-top: 4px;
    font-size: 0.76rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 22px;
    background: rgba(22,22,40,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    animation: toastIn 0.4s cubic-bezier(.4,0,.2,1);
    max-width: 340px;
    border: 1px solid var(--surface-border);
    border-left-width: 4px;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--danger);
}

.toast.warning {
    border-left-color: var(--warning);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.18);
}

/* ===== Selection ===== */
::selection {
    background: rgba(124,58,237,0.3);
    color: #fff;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    main {
        grid-template-columns: 1fr;
    }

    .controls-panel {
        order: 2;
    }

    .preview-area {
        order: 1;
    }

    .header-right {
        display: none;
    }
}

@media (max-width: 600px) {
    header {
        padding: 12px 16px;
    }

    .site-nav {
        display: none;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .logo-sub {
        display: none;
    }

    main {
        padding: 16px;
        gap: 16px;
    }

    .control-section {
        padding: 16px;
    }

    .export-buttons {
        flex-direction: column;
    }

    .size-options {
        grid-template-columns: 1fr;
    }

    .photo-frame canvas {
        max-width: 220px;
    }

    .blob-1, .blob-2, .blob-3 {
        display: none;
    }
}

/* ===== Print Styles ===== */
@media print {
    body {
        background: none !important;
    }

    .bg-decoration,
    header, .controls-panel, .export-buttons, .section-header,
    .sheet-info, #photoPreviewSection {
        display: none !important;
    }

    main {
        display: block !important;
        padding: 0 !important;
    }

    .preview-section {
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        background: none !important;
        backdrop-filter: none !important;
    }

    .sheet-preview-container {
        padding: 0 !important;
        border: none !important;
        background: none !important;
    }

    .sheet-preview-container canvas {
        box-shadow: none !important;
        width: 100% !important;
        max-width: none !important;
    }

    @page {
        size: A4;
        margin: 0;
    }
}