/**
 * Lens Try-On — Modern Neutral + App-like Mobile
 *
 * Desktop: clean side-by-side layout, warm neutral palette
 * Mobile:  full-screen immersive camera + bottom drawer panel
 *
 * @package Foreign_Trade_Pro
 */

/* ===== Tokens ===== */
:root {
    --lt-bg:       #f5f5f7;
    --lt-surface:  #ffffff;
    --lt-surface-2:#f0f0f3;
    --lt-surface-3:#e8e8ed;
    --lt-border:   rgba(0,0,0,0.06);
    --lt-border-2: rgba(0,0,0,0.10);
    --lt-text:     #1d1d1f;
    --lt-text-2:   #6e6e73;
    --lt-text-3:   #a1a1a6;
    --lt-accent:   #7c3aed;
    --lt-accent-bg:rgba(124,58,237,0.06);
    --lt-accent-border:rgba(124,58,237,0.18);
    --lt-lens-card-media-padding: clamp(6px, 0.9vw, 10px);
    --lt-lens-card-media-bg: radial-gradient(circle at 50% 35%, #ffffff 0%, #f7f7fb 48%, #eceef4 100%);
    --lt-radius:   12px;
    --lt-radius-sm:8px;
    --lt-radius-lg:16px;
    --lt-shadow:   0 1px 3px rgba(0,0,0,0.04),0 4px 16px rgba(0,0,0,0.06);
    --lt-shadow-lg:0 8px 40px rgba(0,0,0,0.10);
    --lt-ease:     0.2s cubic-bezier(.4,0,.2,1);
}

/* ===== Page ===== */
.lens-tryon-page {
    min-height: 100vh;
    background: var(--lt-bg);
    color: var(--lt-text);
    padding: 24px;
    padding-top: calc(var(--header-height,80px) + 24px);
    font-family: -apple-system,BlinkMacSystemFont,'Inter','Segoe UI',sans-serif;
    -webkit-font-smoothing: antialiased;
}

.lens-tryon-container {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 20px;
    align-items: start;
}

/* ===== Camera ===== */
.lens-camera-section {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.lens-camera-wrapper {
    position: relative;
    background: var(--lt-surface-2);
    border-radius: var(--lt-radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--lt-border);
    box-shadow: var(--lt-shadow);
}
.lens-camera-wrapper.has-content {
    aspect-ratio: auto;
    min-height: 300px;
    max-height: calc(100vh - var(--header-height,80px) - 80px);
}
.lens-camera-wrapper.has-content canvas {
    max-height: calc(100vh - var(--header-height,80px) - 80px);
    object-fit: contain;
}
.lens-camera-wrapper video,
.lens-camera-wrapper canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    border-radius: var(--lt-radius-lg);
}
.lens-camera-wrapper canvas.is-compare-draggable {
    cursor: ew-resize;
    touch-action: none;
    overscroll-behavior: contain;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}
.lens-camera-wrapper video {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* ===== Camera Placeholder ===== */
.lens-camera-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 5;
    color: var(--lt-text-3);
    transition: opacity 0.4s ease, visibility 0.4s ease;
    padding: 24px;
    box-sizing: border-box;
}
.lens-camera-placeholder.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.lens-placeholder-face {
    animation: lt-placeholder-breathe 3s ease-in-out infinite;
}
@keyframes lt-placeholder-breathe {
    0%, 100% { transform: scale(1); opacity: 0.55; }
    50%      { transform: scale(1.04); opacity: 0.8; }
}
.lens-placeholder-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--lt-text-2);
    margin: 0;
    letter-spacing: -0.01em;
}
.lens-placeholder-hint {
    font-size: 13px;
    color: var(--lt-text-3);
    margin: 0;
    max-width: 260px;
    text-align: center;
    line-height: 1.45;
}
.lens-placeholder-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    margin-top: 4px;
    background: var(--lt-accent);
    color: #fff;
    border: none;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--lt-ease), transform var(--lt-ease), box-shadow var(--lt-ease);
    box-shadow: 0 4px 16px rgba(124,58,237,0.25);
}
.lens-placeholder-btn:hover {
    background: #6d28d9;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(124,58,237,0.35);
}
.lens-placeholder-btn:active {
    transform: scale(0.96);
}

/* Placeholder inner states */
.lens-placeholder-default,
.lens-placeholder-denied {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.lens-placeholder-denied-icon {
    color: #ef4444;
    opacity: 0.7;
}
.lens-placeholder-denied-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.lens-placeholder-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--lt-surface);
    color: var(--lt-text-2);
    border: 1px solid var(--lt-border-2);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--lt-ease), transform var(--lt-ease), border-color var(--lt-ease);
}
.lens-placeholder-btn-secondary:hover {
    background: var(--lt-surface-2);
    border-color: var(--lt-accent-border);
    color: var(--lt-text);
    transform: translateY(-1px);
}
.lens-placeholder-btn-secondary:active {
    transform: scale(0.96);
}
.lens-placeholder-settings-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--lt-text-3);
    margin: 0;
    padding: 8px 14px;
    background: var(--lt-surface-2);
    border-radius: var(--lt-radius-sm);
    line-height: 1.4;
}

.lens-model-picker {
    position: absolute;
    left: 50%;
    bottom: 72px;
    width: min(340px, calc(100% - 32px));
    padding: 14px;
    border-radius: 22px;
    background: rgba(9,11,18,0.82);
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 24px 56px rgba(0,0,0,0.32);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #fff;
    z-index: 18;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate(-50%, 12px);
    transition: opacity var(--lt-ease), transform var(--lt-ease), visibility var(--lt-ease);
}
.lens-model-picker.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
}
.lens-model-picker-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.lens-model-picker-title {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255,255,255,0.92);
    letter-spacing: 0.01em;
}
.lens-model-picker-close {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.82);
    transition: background var(--lt-ease), color var(--lt-ease), transform var(--lt-ease);
}
.lens-model-picker-close:hover {
    background: rgba(255,255,255,0.16);
    color: #fff;
}
.lens-model-picker-close:active {
    transform: scale(0.92);
}
.lens-model-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    align-items: start;
    max-height: min(52vh, 320px);
    overflow-y: auto;
    padding-right: 4px;
}
.lens-model-list::-webkit-scrollbar {
    width: 4px;
}
.lens-model-list::-webkit-scrollbar-track {
    background: transparent;
}
.lens-model-list::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 999px;
}
.lens-model-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 0;
    border: none;
    background: transparent;
    color: inherit;
    text-align: center;
    cursor: pointer;
}
.lens-model-card:hover .lens-model-media {
    transform: translateY(-2px);
    box-shadow: 0 18px 36px rgba(15,23,42,0.2);
}
.lens-model-card:focus-visible {
    outline: 3px solid rgba(124,58,237,0.24);
    outline-offset: 4px;
    border-radius: 18px;
}
.lens-model-media {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(255,255,255,0.82);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 14px 32px rgba(0,0,0,0.22);
    transition: transform var(--lt-ease), box-shadow var(--lt-ease);
}
.lens-model-media img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}
.lens-model-empty-state {
    grid-column: 1 / -1;
    min-height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    border: 1px dashed rgba(255,255,255,0.16);
    border-radius: 16px;
    background: rgba(255,255,255,0.04);
    color: rgba(255,255,255,0.62);
    font-size: 12px;
    line-height: 1.5;
    text-align: center;
    box-sizing: border-box;
}
.lens-model-iris {
    margin: 0;
    font-size: 11px;
    line-height: 1.45;
    color: rgba(255,255,255,0.76);
    text-align: center;
    font-weight: 600;
    text-shadow: none;
}

/* ===== Controls — Glass Bar ===== */
.lens-controls {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255,255,255,0.78);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    padding: 6px 12px;
    border-radius: 100px;
    border: 1px solid var(--lt-border-2);
    z-index: 10;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.lens-ctrl-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--lt-text-2);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--lt-ease),background var(--lt-ease),transform var(--lt-ease);
}
.lens-ctrl-btn:hover {
    color: var(--lt-text);
    background: rgba(0,0,0,0.05);
}
.lens-ctrl-btn:active { transform: scale(0.9); }
.lens-ctrl-btn.active {
    color: var(--lt-accent);
    background: var(--lt-accent-bg);
}

.lens-size-control {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--lt-text-3);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-left: 2px;
    padding-left: 8px;
    border-left: 1px solid var(--lt-border-2);
}
.lens-size-control input[type="range"] {
    width: 68px;
    height: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--lt-surface-3);
    border-radius: 2px;
    outline: none;
}
.lens-size-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--lt-accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 6px rgba(124,58,237,0.35);
}

.lens-blend-control {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--lt-text-3);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.lens-blend-control select {
    background: transparent;
    border: 1px solid var(--lt-border-2);
    color: var(--lt-text-2);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 11px;
    cursor: pointer;
    outline: none;
    transition: border-color var(--lt-ease);
}
.lens-blend-control select:hover { border-color: var(--lt-accent-border); }
.lens-blend-control select:focus {
    border-color: var(--lt-accent);
    box-shadow: 0 0 0 2px rgba(124,58,237,0.12);
}

/* ===== Mobile controls row (tablet only) ===== */
.lens-mobile-controls { display: none; }

/* ===== Drawer handle (mobile only) ===== */
.lens-drawer-handle { display: none; }


/* Hide dynamically injected stray children in grid container */
.lens-tryon-container > :not(.lens-camera-section):not(.lens-panel-section) {
    display: none;
}

/* ===== Right Panel ===== */
.lens-panel-section {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-height,80px) + 24px);
    background: var(--lt-surface);
    border-radius: var(--lt-radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: calc(100vh - var(--header-height,80px) - 60px);
    overflow-y: auto;
    border: 1px solid var(--lt-border);
    box-shadow: var(--lt-shadow);
}
.lens-panel-section::-webkit-scrollbar { width: 4px; }
.lens-panel-section::-webkit-scrollbar-track { background: transparent; }
.lens-panel-section::-webkit-scrollbar-thumb { background: var(--lt-surface-3); border-radius: 2px; }

.lens-panel-header h2 {
    font-size: 15px;
    font-weight: 600;
    color: var(--lt-text);
    margin: 0;
    letter-spacing: -0.01em;
}

/* ===== Search & Filters ===== */
.lens-filter-section { display: flex; flex-direction: column; gap: 8px; }

.lens-search-input {
    width: 100%;
    padding: 9px 12px;
    background: var(--lt-surface-2);
    border: 1px solid var(--lt-border);
    color: var(--lt-text);
    border-radius: var(--lt-radius-sm);
    font-size: 13px;
    outline: none;
    transition: border-color var(--lt-ease),box-shadow var(--lt-ease);
    box-sizing: border-box;
}
.lens-search-input::placeholder { color: var(--lt-text-3); }
.lens-search-input:focus {
    border-color: var(--lt-accent);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.08);
}

.lens-filter-row { display: flex; gap: 6px; }

.lens-filter-select {
    flex: 1;
    padding: 7px 10px;
    background: var(--lt-surface-2);
    border: 1px solid var(--lt-border);
    color: var(--lt-text-2);
    border-radius: var(--lt-radius-sm);
    font-size: 12px;
    cursor: pointer;
    outline: none;
    transition: border-color var(--lt-ease);
}
.lens-filter-select:focus {
    border-color: var(--lt-accent);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.08);
}

.lens-filter-clear {
    width: 34px; height: 34px;
    border: 1px solid var(--lt-border);
    background: var(--lt-surface-2);
    color: var(--lt-text-3);
    border-radius: var(--lt-radius-sm);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--lt-ease);
    flex-shrink: 0;
}
.lens-filter-clear:hover {
    background: rgba(239,68,68,0.06);
    border-color: rgba(239,68,68,0.2);
    color: #ef4444;
}

.lens-filter-count { font-size: 11px; color: var(--lt-text-3); font-weight: 500; }
.lens-filter-count.has-filter { color: var(--lt-accent); }

/* ===== Category Tabs ===== */
.lens-category-tabs { display: flex; gap: 4px; flex-wrap: wrap; }

.lens-tab {
    padding: 5px 12px;
    background: transparent;
    border: 1px solid var(--lt-border);
    color: var(--lt-text-3);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--lt-ease);
    white-space: nowrap;
}
.lens-tab:hover {
    background: var(--lt-surface-2);
    border-color: var(--lt-border-2);
    color: var(--lt-text-2);
}
.lens-tab.active {
    background: var(--lt-accent);
    border-color: var(--lt-accent);
    color: #fff;
    box-shadow: 0 2px 8px rgba(124,58,237,0.2);
}


/* ===== Lens Grid ===== */
.lens-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 8px;
    max-height: 420px;
    overflow-y: auto;
    padding-right: 2px;
}
.lens-grid::-webkit-scrollbar { width: 3px; }
.lens-grid::-webkit-scrollbar-track { background: transparent; }
.lens-grid::-webkit-scrollbar-thumb { background: var(--lt-surface-3); border-radius: 2px; }

.lens-card {
    background: var(--lt-surface-2);
    border: 1.5px solid transparent;
    border-radius: var(--lt-radius);
    padding: 6px;
    cursor: pointer;
    text-align: center;
    transition: all var(--lt-ease);
}
.lens-card:hover {
    border-color: var(--lt-border-2);
    background: var(--lt-surface);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.lens-card.active {
    border-color: var(--lt-accent);
    background: var(--lt-accent-bg);
    box-shadow: 0 0 0 1px var(--lt-accent),0 4px 16px rgba(124,58,237,0.08);
}

.lens-card-img {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--lt-radius-sm);
    overflow: hidden;
    margin-bottom: 5px;
    padding: var(--lt-lens-card-media-padding);
    box-sizing: border-box;
    background: var(--lt-lens-card-media-bg);
}
.lens-card-img img {
    width: 100%; height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: transform 0.3s ease;
}
.lens-card:hover .lens-card-img img { transform: scale(1.05); }

.lens-card-name {
    font-size: 11px; font-weight: 500;
    color: var(--lt-text-2);
    line-height: 1.3;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    display: block;
}
.lens-card-color {
    font-size: 10px; color: var(--lt-text-3);
    display: block; margin-top: 1px;
}

.lens-empty {
    grid-column: 1/-1;
    text-align: center;
    padding: 32px 16px;
    color: var(--lt-text-3);
    font-size: 13px;
}

/* ===== Load More ===== */
.lens-pagination { display: flex; justify-content: center; }

.lens-load-more-btn {
    width: 100%; padding: 10px;
    background: var(--lt-surface-2);
    border: 1px solid var(--lt-border);
    color: var(--lt-text-2);
    border-radius: var(--lt-radius-sm);
    cursor: pointer; font-size: 12px; font-weight: 500;
    transition: all var(--lt-ease);
    display: flex; align-items: center; justify-content: center; gap: 6px;
}
.lens-load-more-btn:hover {
    background: var(--lt-surface);
    border-color: var(--lt-border-2);
    color: var(--lt-text);
}
.lens-load-more-count { color: var(--lt-text-3); font-size: 11px; }

/* ===== Lens Info ===== */
.lens-info-panel {
    background: var(--lt-accent-bg);
    border: 1px solid var(--lt-accent-border);
    border-radius: var(--lt-radius);
    padding: 14px;
}
.lens-info-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 8px;
}
.lens-info-header h3 {
    font-size: 14px; font-weight: 600; color: var(--lt-text); margin: 0;
}
.lens-info-price { font-size: 15px; font-weight: 700; color: var(--lt-accent); }
.lens-info-details {
    display: flex; gap: 12px;
    font-size: 11px; color: var(--lt-text-3); font-weight: 500;
}


/* ===== Loading / Toast / Share ===== */
.lens-loading-overlay {
    position: fixed; inset: 0;
    background: rgba(245,245,247,0.88);
    backdrop-filter: blur(12px);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999;
}
.lens-loading-spinner { text-align: center; }
.lens-loading-ring {
    width: 40px; height: 40px;
    border: 2px solid var(--lt-surface-3);
    border-top-color: var(--lt-accent);
    border-radius: 50%;
    animation: lt-spin .7s linear infinite;
    margin: 0 auto 14px;
}
@keyframes lt-spin { to { transform: rotate(360deg); } }
.lens-loading-text { color: var(--lt-text-2); font-size: 13px; font-weight: 500; }

.lens-toast {
    position: fixed; top: 20px; left: 50%;
    transform: translateX(-50%) translateY(-16px);
    background: var(--lt-surface);
    color: var(--lt-text);
    padding: 10px 20px;
    border-radius: var(--lt-radius);
    font-size: 13px; font-weight: 500;
    z-index: 10000; opacity: 0;
    transition: all .3s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
    border: 1px solid var(--lt-border-2);
    box-shadow: var(--lt-shadow-lg);
}
.lens-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.lens-toast-error { border-color: rgba(239,68,68,0.3); color: #dc2626; }
.lens-toast-info { border-color: var(--lt-accent-border); }

/* Share overlay */
.lens-share-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    z-index: 9998; opacity: 0;
    transition: opacity .25s ease;
    pointer-events: none;
}
.lens-share-overlay.show { opacity: 1; pointer-events: auto; }

.lens-share-modal {
    background: var(--lt-surface);
    border: 1px solid var(--lt-border-2);
    border-radius: var(--lt-radius-lg);
    padding: 24px; max-width: 420px; width: 90%;
    position: relative;
    box-shadow: var(--lt-shadow-lg);
    transform: scale(.96) translateY(8px);
    transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.lens-share-overlay.show .lens-share-modal { transform: scale(1) translateY(0); }

.lens-share-close {
    position: absolute; top: 14px; right: 14px;
    width: 28px; height: 28px;
    border: none; background: var(--lt-surface-2);
    color: var(--lt-text-3); border-radius: 50%;
    cursor: pointer; font-size: 16px;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--lt-ease); line-height: 1;
}
.lens-share-close:hover { background: var(--lt-surface-3); color: var(--lt-text); }

.lens-share-modal h3 {
    font-size: 15px; font-weight: 600; color: var(--lt-text); margin: 0 0 16px;
}
.lens-share-preview { margin-bottom: 16px; }
.lens-share-preview img {
    width: 100%; border-radius: var(--lt-radius);
    border: 1px solid var(--lt-border);
}
.lens-share-actions { display: flex; gap: 8px; justify-content: center; }
.lens-share-btn {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 12px 18px;
    background: var(--lt-surface-2);
    border: 1px solid var(--lt-border);
    color: var(--lt-text-2);
    border-radius: var(--lt-radius);
    cursor: pointer; font-size: 11px; font-weight: 500;
    transition: all var(--lt-ease); min-width: 72px;
}
.lens-share-btn:hover {
    background: var(--lt-surface);
    border-color: var(--lt-border-2);
    color: var(--lt-text);
    transform: translateY(-1px);
}
.lens-share-btn:active { transform: scale(.96); }
.lens-share-qrcode { margin-top: 16px; text-align: center; }
.lens-share-qrcode p { font-size: 12px; color: var(--lt-text-3); margin-bottom: 8px; }
.lens-share-qrcode img { border-radius: var(--lt-radius-sm); }


/* ==========================================================
   RESPONSIVE — Tablet (≤900px)
   ========================================================== */
@media (max-width: 900px) {
    .lens-tryon-container {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .lens-camera-section { grid-column: auto; grid-row: auto; }
    .lens-panel-section { grid-column: auto; grid-row: auto; position: static; max-height: none; }
    .lens-tryon-container > :not(.lens-camera-section):not(.lens-panel-section) { display: none; }
    .lens-grid { grid-template-columns: repeat(4,1fr); max-height: 300px; }

    /* Hide size/effect from camera bar, show mobile row */
    .lens-controls .lens-size-control,
    .lens-controls .lens-blend-control { display: none; }

    .lens-mobile-controls {
        display: flex; gap: 12px;
        align-items: center; justify-content: center;
        padding: 10px 16px;
        background: var(--lt-surface);
        border-radius: var(--lt-radius);
        border: 1px solid var(--lt-border);
    }
    .lens-mobile-controls .lens-size-control,
    .lens-mobile-controls .lens-blend-control {
        display: flex; align-items: center; gap: 6px;
        color: var(--lt-text-3); font-size: 11px; font-weight: 500;
        text-transform: uppercase; letter-spacing: 0.03em;
    }
    .lens-mobile-controls .lens-size-control input[type="range"] {
        width: 72px; height: 3px;
        -webkit-appearance: none; appearance: none;
        background: var(--lt-surface-3); border-radius: 2px; outline: none;
    }
    .lens-mobile-controls .lens-size-control input[type="range"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 12px; height: 12px;
        background: var(--lt-accent); border-radius: 50%; cursor: pointer;
    }
    .lens-mobile-controls .lens-blend-control select {
        background: var(--lt-surface-2);
        border: 1px solid var(--lt-border);
        color: var(--lt-text-2);
        padding: 4px 8px; border-radius: 6px;
        font-size: 11px; cursor: pointer; outline: none;
    }
}

/* ==========================================================
   RESPONSIVE — Phone (≤600px) — APP-LIKE IMMERSIVE LAYOUT
   ========================================================== */
@media (max-width: 600px) {
    html,
    body,
    body.page-template-page-lens-tryon {
        max-width: 100%;
        overflow-x: hidden;
        background: #000;
    }

    /* Immersive: fill viewport, hide footer */
    .lens-tryon-page {
        padding: 0;
        background: #000;
        min-height: 100vh;
        min-height: 100svh;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    /* Hide footer on mobile for immersive */
    body.page-template-page-lens-tryon .site-footer,
    body.page-template-page-lens-tryon footer {
        display: none;
    }

    /* Header: transparent overlay */
    body.page-template-page-lens-tryon .site-header {
        background: linear-gradient(to bottom, rgba(0,0,0,0.45), transparent) !important;
        border-bottom: none !important;
        box-shadow: none !important;
    }
    body.page-template-page-lens-tryon .site-header,
    body.page-template-page-lens-tryon .site-header a,
    body.page-template-page-lens-tryon .site-header .main-navigation a {
        color: rgba(255,255,255,0.85) !important;
    }

    .lens-tryon-container {
        display: flex;
        flex-direction: column;
        gap: 0;
        min-height: 100vh;
        min-height: 100svh;
        position: relative;
        overflow: hidden;
        width: 100%;
        max-width: 100vw;
    }

    /* Camera fills available space above drawer */
    .lens-camera-section {
        grid-column: auto;
        grid-row: auto;
        gap: 0;
        position: relative;
        min-height: 0;
        /* leave room for collapsed drawer (180px) */
        height: calc(100vh - 188px);
        height: calc(100svh - 188px);
        flex-shrink: 0;
        width: 100%;
        max-width: 100vw;
        overflow: hidden;
    }

    .lens-camera-wrapper {
        border-radius: 0;
        border: none;
        box-shadow: none;
        background: #000;
        aspect-ratio: auto;
        width: 100%;
        height: 100%;
        min-height: 0;
        max-height: none;
        max-width: 100vw;
        overflow: hidden;
    }
    .lens-camera-wrapper.has-content {
        max-height: none;
        min-height: 0;
    }
    .lens-camera-wrapper.has-content canvas {
        max-height: 100%;
        max-width: none;
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }
    .lens-camera-wrapper video,
    .lens-camera-wrapper canvas {
        border-radius: 0;
        flex: 0 0 auto;
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }

    /* Controls: top-right vertical stack */
    .lens-controls {
        position: absolute;
        bottom: auto;
        top: calc(var(--header-height, 60px) + 12px);
        right: 12px;
        left: auto;
        transform: none;
        flex-direction: column;
        gap: 4px;
        padding: 8px;
        border-radius: var(--lt-radius-lg);
        background: rgba(0,0,0,0.35);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid rgba(255,255,255,0.1);
        box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    }
    .lens-ctrl-btn {
        width: 40px; height: 40px;
        color: rgba(255,255,255,0.8);
    }
    .lens-ctrl-btn:hover {
        color: #fff;
        background: rgba(255,255,255,0.15);
    }
    .lens-ctrl-btn.active {
        color: #a78bfa;
        background: rgba(139,92,246,0.2);
    }
    .lens-ctrl-btn svg { width: 18px; height: 18px; }

    .lens-controls .lens-size-control,
    .lens-controls .lens-blend-control { display: none; }

    /* Hide tablet mobile controls */
    .lens-mobile-controls { display: none; }

    .lens-camera-placeholder {
        padding: calc(var(--header-height, 60px) + 24px) 16px 220px;
    }

    .lens-model-picker {
        left: auto;
        right: 64px;
        bottom: auto;
        top: calc(var(--header-height, 60px) + 12px);
        width: min(72vw, 280px);
        max-width: calc(100vw - 92px);
        padding: 12px;
        transform: translate(12px, 0);
    }
    .lens-model-picker.is-open {
        transform: translate(0, 0);
    }
    .lens-model-picker-head {
        margin-bottom: 10px;
    }
    .lens-model-picker-title {
        font-size: 12px;
    }
    .lens-model-picker-close {
        width: 28px;
        height: 28px;
    }
    .lens-model-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        max-height: calc(100svh - var(--header-height, 60px) - 220px);
    }
    .lens-model-media {
        background: rgba(255,255,255,0.08);
        border-color: rgba(255,255,255,0.82);
        box-shadow: 0 16px 32px rgba(0,0,0,0.28);
    }
    .lens-model-iris {
        font-size: 10px;
        color: rgba(255,255,255,0.74);
        text-shadow: none;
    }
    .lens-model-empty-state {
        min-height: 90px;
        border-color: rgba(255,255,255,0.1);
        background: rgba(255,255,255,0.04);
        color: rgba(255,255,255,0.62);
    }

    /* ===== Bottom Drawer ===== */
    .lens-panel-section {
        grid-column: auto;
        grid-row: auto;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        z-index: 200;
        max-height: none;
        min-height: 64px;
        border-radius: 20px 20px 0 0;
        border: none;
        border-top: 1px solid rgba(0,0,0,0.06);
        background: rgba(255,255,255,0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        box-shadow: 0 -4px 30px rgba(0,0,0,0.1);
        padding: 0 16px 12px;
        gap: 8px;
        overflow: hidden;
        will-change: transform;
        transform: translateZ(0);
    }
    .lens-panel-section.drawer-open {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Drawer handle */
    .lens-drawer-handle {
        display: flex;
        justify-content: center;
        padding: 10px 0 6px;
        cursor: grab;
        flex-shrink: 0;
        -webkit-user-select: none;
        user-select: none;
        touch-action: none;
    }
    .lens-drawer-handle span {
        display: block;
        width: 36px; height: 4px;
        background: #d1d5db;
        border-radius: 2px;
    }
    .lens-drawer-handle:active span { background: var(--lt-accent); }

    .lens-panel-header h2 { font-size: 14px; }

    /* In collapsed state, hide filters to save space */
    .lens-panel-section:not(.drawer-open) .lens-filter-section,
    .lens-panel-section:not(.drawer-open) .lens-filter-count,
    .lens-panel-section:not(.drawer-open) .lens-info-panel,
    .lens-panel-section:not(.drawer-open) .lens-pagination {
        display: none;
    }

    /* Collapsed: horizontal scroll strip of lens cards */
    .lens-panel-section:not(.drawer-open) .lens-grid {
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        max-height: none;
        gap: 8px;
        padding-bottom: 4px;
        scroll-snap-type: x mandatory;
    }
    .lens-panel-section:not(.drawer-open) .lens-grid::-webkit-scrollbar { display: none; }
    .lens-panel-section:not(.drawer-open) .lens-card {
        flex-shrink: 0;
        width: 72px;
        scroll-snap-align: start;
    }

    /* Collapsed: category tabs horizontal scroll */
    .lens-panel-section:not(.drawer-open) .lens-category-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 2px;
    }
    .lens-panel-section:not(.drawer-open) .lens-category-tabs::-webkit-scrollbar { display: none; }

    /* Open state: restore grid */
    .lens-panel-section.drawer-open .lens-grid {
        display: grid;
        grid-template-columns: repeat(4,1fr);
        gap: 6px;
        max-height: 240px;
        overflow-y: auto;
    }

    .lens-grid {
        grid-template-columns: repeat(4,1fr);
        gap: 6px;
        max-height: 240px;
    }

    .lens-card { padding: 5px; }
    .lens-card-name { font-size: 10px; }
    .lens-card-color { font-size: 9px; }

    .lens-category-tabs { gap: 3px; }
    .lens-tab { padding: 4px 10px; font-size: 11px; }

    .lens-info-panel { padding: 10px; }
    .lens-info-header h3 { font-size: 13px; }
    .lens-info-price { font-size: 13px; }

    .lens-toast { top: calc(var(--header-height,60px) + 8px); }
    .lens-share-modal { padding: 18px; }
}

/* ==========================================================
   RESPONSIVE — Small Phone (≤380px)
   ========================================================== */
@media (max-width: 380px) {
    .lens-grid { grid-template-columns: repeat(3,1fr); }
    .lens-ctrl-btn { width: 36px; height: 36px; }
    .lens-ctrl-btn svg { width: 16px; height: 16px; }
}