/* ============================================
   Ehon Gift - Design System
   Lovevery-inspired pastel gift aesthetic
   ============================================ */

:root {
    /* Primary Palette — Warm & Trustworthy */
    --color-primary: #6B5CE7;
    /* Soft purple — trust + premium */
    --color-primary-light: #EDE9FF;
    --color-primary-dark: #4A3DB5;
    --color-accent: #F5A623;
    /* Warm gold — gift/celebration */
    --color-accent-light: #FFF3E0;

    /* Pastel Section Backgrounds (Lovevery-inspired) */
    --color-bg-lavender: #F0E6FF;
    --color-bg-peach: #FFF0E6;
    --color-bg-mint: #E6FFF0;
    --color-bg-sky: #E6F0FF;
    --color-bg-rose: #FFE6F0;

    /* Neutrals */
    --color-text-main: #2D2B3D;
    --color-text-sub: #6B6880;
    --color-text-placeholder: #B0ADC0;
    --color-bg-app: #FDFBFF;
    --color-bg-card: #FFFFFF;
    --color-border: #E8E5F0;

    /* Feedback */
    --color-success: #4CAF82;
    --color-warning: #F5A623;
    --color-danger: #E74C5C;

    /* Typography */
    --font-main: 'Zen Maru Gothic', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 26px;
    --font-size-xxl: 34px;

    /* Spacing & Radius */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 40px;

    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 9999px;

    /* Effects */
    --shadow-soft: 0 2px 12px rgba(107, 92, 231, 0.06);
    --shadow-card: 0 4px 20px rgba(107, 92, 231, 0.08);
    --shadow-float: 0 8px 32px rgba(107, 92, 231, 0.12);
    --shadow-glow: 0 0 24px rgba(107, 92, 231, 0.15);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   Reset & Base 
   ============================================ */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg-app);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 120px;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* ============================================
   Layout Utilities
   ============================================ */
.hidden {
    display: none !important;
}

.container {
    padding: var(--spacing-md);
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.flex-1 {
    flex: 1;
}

.flex-grow {
    flex-grow: 1;
}

.flex-shrink-0 {
    flex-shrink: 0;
}

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.object-cover {
    object-fit: cover;
}

.overflow-hidden {
    overflow: hidden;
}

.overflow-x-auto {
    overflow-x: auto;
}

/* Spacing */
.p-sm {
    padding: var(--spacing-sm);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

.px-sm {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.px-md {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.px-lg {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.py-xs {
    padding-top: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
}

.py-sm {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.py-md {
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.py-lg {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.py-xl {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.pt-md {
    padding-top: var(--spacing-md);
}

.pb-xl {
    padding-bottom: var(--spacing-xl);
}

.mb-xs {
    margin-bottom: var(--spacing-xs);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.mt-xs {
    margin-top: var(--spacing-xs);
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.ml-xs {
    margin-left: var(--spacing-xs);
}

.ml-sm {
    margin-left: var(--spacing-sm);
}

.ml-lg {
    margin-left: var(--spacing-lg);
}

.mr-xs {
    margin-right: var(--spacing-xs);
}

.mr-sm {
    margin-right: var(--spacing-sm);
}

.mr-md {
    margin-right: var(--spacing-md);
}

.block {
    display: block;
}

/* ============================================
   Typography
   ============================================ */
.text-xs {
    font-size: var(--font-size-xs);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-base {
    font-size: var(--font-size-base);
}

.text-lg {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.text-xl {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.text-xxl {
    font-size: var(--font-size-xxl);
    font-weight: 700;
}

.text-sub {
    color: var(--color-text-sub);
}

.text-primary {
    color: var(--color-primary);
}

.text-accent {
    color: var(--color-accent);
}

.text-white {
    color: #fff;
}

.text-main {
    color: var(--color-text-main);
}

.text-danger {
    color: var(--color-danger);
}

.text-success {
    color: var(--color-success);
}

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

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.font-bold {
    font-weight: 700;
}

.font-medium {
    font-weight: 500;
}

.font-normal {
    font-weight: 400;
}

.leading-relaxed {
    line-height: 1.8;
}

.leading-tight {
    line-height: 1.3;
}

.line-clamp-1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.whitespace-nowrap {
    white-space: nowrap;
}

/* ============================================
   Components — Cards
   ============================================ */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-float);
}

.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

/* ============================================
   Components — Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    box-shadow: 0 4px 16px rgba(107, 92, 231, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 24px rgba(107, 92, 231, 0.4);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--color-bg-lavender);
}

.btn-outline {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--color-primary-light);
}

.btn-accent {
    background: linear-gradient(135deg, var(--color-accent), #E8941B);
    color: #fff;
    box-shadow: 0 4px 16px rgba(245, 166, 35, 0.3);
}

.btn-square {
    border-radius: var(--radius-md) !important;
}

.btn-gift {
    background: linear-gradient(135deg, #6B5CE7, #9B8CF0);
    color: #fff;
    box-shadow: 0 4px 20px rgba(107, 92, 231, 0.25);
    font-size: var(--font-size-lg);
    padding: 18px 36px;
}

.btn-gift:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* ============================================
   Components — Lovevery-style Pill Buttons
   (for "Who are you shopping for?" screen)
   ============================================ */
.pill-select {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.pill-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 24px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.85);
    color: var(--color-text-main);
    font-size: var(--font-size-base);
    font-weight: 700;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all var(--transition-spring);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.pill-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(107, 92, 231, 0.1), rgba(155, 140, 240, 0.1));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.pill-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(107, 92, 231, 0.12);
}

.pill-btn:hover::before {
    opacity: 1;
}

.pill-btn:active {
    transform: scale(0.98);
}

.pill-btn.selected {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(107, 92, 231, 0.3);
}

.pill-btn i {
    margin-right: 10px;
    font-size: 20px;
}

/* ============================================
   Components — Chips (for multi-select options)
   ============================================ */
.chip {
    display: inline-flex;
    align-items: center;
    padding: 12px 18px;
    border-radius: var(--radius-pill);
    border: 2px solid var(--color-border);
    background: #fff;
    color: var(--color-text-main);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    user-select: none;
}

.chip:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.chip.selected {
    background: var(--color-primary-light) !important;
    color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    font-weight: 700;
}

.chip i {
    margin-right: 6px;
}

/* ============================================
   Components — Input Fields
   ============================================ */
.input-field {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    background: var(--color-bg-card);
    color: var(--color-text-main);
    transition: all var(--transition-fast);
}

.input-field:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

.checkbox {
    width: 22px;
    height: 22px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* ============================================
   Components — Badges & Tags
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-xs);
    font-weight: 700;
}

.badge-primary {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.badge-accent {
    background: var(--color-accent-light);
    color: #E8941B;
}

.badge-gift {
    background: linear-gradient(135deg, var(--color-bg-lavender), var(--color-bg-rose));
    color: var(--color-primary);
}

.badge-outline {
    border: 1px solid var(--color-border);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-xs);
    color: var(--color-text-sub);
}

/* ============================================
   Components — Stepper Progress
   ============================================ */
.stepper {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: var(--spacing-lg);
    padding: 0 var(--spacing-sm);
}

.stepper-dot {
    flex: 1;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border);
    transition: all var(--transition-spring);
}

.stepper-dot.active {
    background: var(--color-primary);
}

.stepper-dot.done {
    background: var(--color-primary);
}

/* ============================================
   Sections — Hero & Pastel Backgrounds
   ============================================ */
.section-pastel {
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    position: relative;
}

.bg-lavender {
    background: var(--color-bg-lavender);
}

.bg-peach {
    background: var(--color-bg-peach);
}

.bg-mint {
    background: var(--color-bg-mint);
}

.bg-sky {
    background: var(--color-bg-sky);
}

.bg-rose {
    background: var(--color-bg-rose);
}

.bg-white {
    background: #fff;
}

.bg-light {
    background: var(--color-bg-app);
}

.bg-primary-light {
    background: var(--color-primary-light);
}

.hero-gradient {
    background: linear-gradient(180deg, var(--color-bg-lavender) 0%, var(--color-bg-app) 100%);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
}

/* Gift-themed decorative elements */
.gift-sparkle {
    position: relative;
}

.gift-sparkle::before,
.gift-sparkle::after {
    content: '✦';
    position: absolute;
    color: var(--color-accent);
    font-size: 14px;
    animation: sparkle 2s ease-in-out infinite;
}

.gift-sparkle::before {
    top: -8px;
    right: -12px;
    animation-delay: 0s;
}

.gift-sparkle::after {
    bottom: -8px;
    left: -12px;
    animation-delay: 1s;
}

/* ============================================
   Components — Book Cards
   ============================================ */
.book-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition-spring);
    cursor: pointer;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-float);
}

.book-card-image {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    background: var(--color-bg-lavender);
}

.book-card-body {
    padding: var(--spacing-md);
}

.book-card-horizontal {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.book-card-horizontal .book-thumb {
    width: 80px;
    height: 100px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    background: var(--color-bg-lavender);
}

/* ============================================
   Components — Star Rating
   ============================================ */
.stars {
    display: inline-flex;
    gap: 2px;
    color: var(--color-accent);
}

.stars i {
    font-size: 14px;
}

/* ============================================
   Layout — Sticky Footer
   ============================================ */
.sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(253, 251, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: var(--spacing-md);
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.05);
    z-index: 100;
}

.sticky-bar-inner {
    max-width: 640px;
    margin: 0 auto;
}

/* Cookie バナー表示中はスティッキーバーを上に押し上げる */
.has-cookie-banner .sticky-bar {
    bottom: var(--cookie-banner-h, 0px);
    transition: bottom 0.2s ease;
}

/* ============================================
   Layout — Header/App Bar
   ============================================ */
.app-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    max-width: 640px;
    margin: 0 auto;
    position: relative;
}

.app-header-title {
    flex: 1;
    text-align: center;
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-text-main);
}

.app-header-back {
    position: absolute;
    left: var(--spacing-md);
    padding: 8px;
    color: var(--color-text-sub);
    font-size: 20px;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.app-header-back:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ============================================
   Animations
   ============================================ */
.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes sparkle {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(0.8);
    }

    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Staggered animation for lists */
.stagger-1 {
    animation-delay: 0.05s;
    opacity: 0;
}

.stagger-2 {
    animation-delay: 0.1s;
    opacity: 0;
}

.stagger-3 {
    animation-delay: 0.15s;
    opacity: 0;
}

.stagger-4 {
    animation-delay: 0.2s;
    opacity: 0;
}

.stagger-5 {
    animation-delay: 0.25s;
    opacity: 0;
}

/* ============================================
   Utility — Borders, Shadows, Cursors
   ============================================ */
.border-b {
    border-bottom: 1px solid var(--color-border);
}

.border-dashed {
    border: 2px dashed var(--color-border);
}

.border-2 {
    border: 2px solid transparent;
}

.border-primary-light {
    border-color: var(--color-primary-light);
}

.rounded {
    border-radius: var(--radius-sm);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.rounded-full {
    border-radius: 50%;
}

.shadow-sm {
    box-shadow: var(--shadow-soft);
}

.shadow-md {
    box-shadow: var(--shadow-card);
}

.cursor-pointer {
    cursor: pointer;
}

.transition-all {
    transition: all var(--transition-fast);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.select-none {
    user-select: none;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

/* Scrollbar hiding */
.no-scrollbar::-webkit-scrollbar {
    display: none;
}

.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 480px) {
    :root {
        --font-size-xl: 22px;
        --font-size-xxl: 28px;
    }

    .container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (min-width: 768px) {
    .container {
        padding: var(--spacing-lg);
    }
}

.gift-btn-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

@media (min-width: 481px) {
    .gift-btn-group {
        flex-direction: row;
        justify-content: center;
    }

    .gift-btn-group .btn {
        flex: 1 1 auto;
    }
}

/* ============================================
   Search Feature Styles
   ============================================ */

/* Home screen search entry button */
.search-entry-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: white;
    border: 1.5px solid var(--color-primary-light);
    border-radius: var(--radius-lg);
    padding: 12px 16px;
    cursor: pointer;
    color: var(--color-text-sub);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    text-align: center;
}

.search-entry-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-lavender);
}

.search-entry-btn i {
    font-size: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.search-entry-btn span:first-of-type {
    font-weight: 500;
    color: var(--color-text-main);
}

/* Search page: input box */
.search-box-wrapper {
    margin-bottom: 16px;
}

.search-box-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.search-box-row .search-box-inner {
    flex: 1;
}

.search-box-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: 10px 18px;
    font-size: var(--font-size-base);
    font-family: var(--font-main);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition-fast);
}

.search-box-btn:hover {
    opacity: 0.88;
}

.search-box-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

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

.search-spin-icon {
    display: inline-block;
    animation: search-spin 0.7s linear infinite;
}

.search-loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 48px 0;
    color: var(--color-text-sub);
    font-size: var(--font-size-base);
}

.search-loading-dots {
    display: flex;
    gap: 6px;
}

.search-loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: search-dot-pulse 1.2s ease-in-out infinite;
}

.search-loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.search-loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes search-dot-pulse {
    0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
    40% { transform: scale(1); opacity: 1; }
}

.search-box-inner {
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--color-primary-light);
    border-radius: var(--radius-lg);
    padding: 4px 12px;
    gap: 8px;
    transition: var(--transition-fast);
}

.search-box-inner:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light)30;
}

.search-box-icon {
    font-size: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.search-box-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-base);
    font-family: var(--font-main);
    background: transparent;
    padding: 8px 0;
    color: var(--color-text-main);
}

.search-box-input::placeholder {
    color: var(--color-text-sub);
}

.search-box-clear {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-sub);
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.search-box-clear:hover {
    background: var(--color-bg-lavender);
    color: var(--color-text-main);
}

/* Filters */
.search-filters-section {
    background: var(--color-bg-lavender);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.search-filter-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.search-filter-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--color-text-sub);
    white-space: nowrap;
    padding-top: 5px;
    min-width: 40px;
}

.search-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.search-chip {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 99px;
    border: 1.5px solid var(--color-primary-light);
    background: white;
    cursor: pointer;
    color: var(--color-text-sub);
    font-family: var(--font-main);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.search-chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.search-chip.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    font-weight: 600;
}

/* Book card in search results */
.search-book-card {
    display: flex;
    gap: 12px;
    padding: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-book-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.search-book-cover {
    width: 56px;
    height: 76px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-bg-lavender);
}

.search-book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.search-book-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-sub);
    font-size: 24px;
}

.search-book-info {
    flex: 1;
    min-width: 0;
}

.search-book-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-snippet {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

/* Keyword highlight */
mark {
    background: #fef08a;
    color: inherit;
    border-radius: 2px;
    padding: 0 1px;
}

/* Zero-hit message */
.search-zero-hit {
    text-align: center;
    padding: 32px 16px;
    color: var(--color-text-sub);
}

/* ============================================
   Utility — Hover classes (used in JS-rendered menus)
   ============================================ */
.hover\:text-main:hover {
    color: var(--color-text-main);
}

.hover\:text-primary:hover {
    color: var(--color-primary);
}

.hover\:text-danger:hover {
    color: var(--color-danger);
}

.hover\:bg-bg-lavender:hover {
    background: var(--color-bg-lavender);
}

/* ============================================
   Home Screen — Logo
   ============================================ */
.home-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-primary-dark);
    letter-spacing: -0.3px;
    text-decoration: none;
}

.home-logo-icon {
    width: 34px;
    height: 34px;
    background: var(--color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

/* ============================================
   Home Screen — Book Collage
   ============================================ */
.hero-books {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 10px;
    padding: 4px 0 8px;
    margin-bottom: var(--spacing-md);
}

.hero-book-item {
    width: 76px;
    height: 106px;
    border-radius: 6px;
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
    background: var(--color-bg-lavender);
    flex-shrink: 0;
    display: block;
}

/* ============================================
   Home Screen — Social Proof Bar
   ============================================ */
.social-proof-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-pill);
    padding: 10px 20px;
    margin-bottom: var(--spacing-md);
}

.social-proof-item {
    text-align: center;
}

.social-proof-num {
    display: block;
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1;
}

.social-proof-label {
    display: block;
    font-size: 10px;
    color: var(--color-text-sub);
    margin-top: 3px;
}

.social-proof-divider {
    width: 1px;
    height: 28px;
    background: var(--color-border);
    flex-shrink: 0;
}

/* ============================================
   Hearing Sheet — Form Components
   ============================================ */

/* Toggle Switch */
.toggle-switch {
    -webkit-appearance: none;
    appearance: none;
    width: 44px;
    height: 24px;
    background: var(--color-border);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.toggle-switch::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch:checked {
    background: var(--color-primary);
}

.toggle-switch:checked::before {
    transform: translateX(20px);
}

/* Chip (selection button) */
.chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: white;
    color: var(--color-text-main);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.chip:hover {
    border-color: var(--color-primary-light);
    background: var(--color-bg-lavender);
}

/* .chip.selected is defined at line ~609 with !important */

/* .input-field is defined at line ~623 */
/* Input Field overrides removed to avoid duplicate */
.input-field-compact {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-main);
    background: white;
    transition: var(--transition-fast);
    font-family: inherit;
}

.input-field:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(107, 92, 231, 0.15);
}

textarea.input-field {
    resize: vertical;
    min-height: 60px;
}

select.input-field {
    cursor: pointer;
}

/* Category Header for Questionnaire */
.category-header {
    background: var(--color-primary-light);
    border-radius: var(--radius-pill);
    padding: 8px 16px;
    font-weight: 700;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    margin-top: 16px;
    color: var(--color-primary-dark);
}

.category-header i {
    font-size: 18px;
}

.pill-btn {
    border: 1px solid var(--color-border) !important;
}

.pill-btn.pill-btn-accent.selected {
    background: var(--color-accent) !important;
    border-color: var(--color-accent) !important;
    color: white !important;
}

/* ============================================
   Components — Book Card Purchase Buttons
   ============================================ */
.book-card-buy-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: inherit;
}

.book-card-buy-btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.book-card-buy-btn i {
    font-size: 12px;
}

.book-card-buy-amazon {
    background: linear-gradient(135deg, var(--color-accent), #E8941B);
    color: #fff;
}

.book-card-buy-rakuten {
    background: #fff;
    border: 1.5px solid var(--color-danger);
    color: var(--color-danger);
}

/* ============================================
   Components — Book Card Favorite Button
   ============================================ */
.book-card-fav-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 2;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
    transition: all var(--transition-fast);
}

.book-card-fav-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* ============================================
   Components — Skeleton Loading
   ============================================ */
@keyframes skeleton-pulse {
    0% { opacity: 0.6; }
    50% { opacity: 0.3; }
    100% { opacity: 0.6; }
}

.skeleton-pulse {
    background: #e2dff0;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-card {
    pointer-events: none;
}

/* ============================================
   Components — Skip Link in StickyBar
   ============================================ */
.sticky-skip-link {
    color: var(--color-text-sub);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    padding: 8px 16px;
    transition: color var(--transition-fast);
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
}

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

/* ============================================
   Components — SNS Share Buttons
   ============================================ */
.share-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    gap: var(--spacing-md);
}

.share-section-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-sub);
    white-space: nowrap;
}

.share-section-label i {
    font-size: 18px;
    color: var(--color-primary);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-xs);
    font-weight: 700;
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.share-btn i {
    font-size: 16px;
}

.share-btn:active {
    transform: scale(0.95);
}

.share-btn-line {
    background: #06C755;
    color: white;
}

.share-btn-line:hover {
    background: #05B04C;
}

.share-btn-x {
    background: #1D1D1D;
    color: white;
}

.share-btn-x:hover {
    background: #333;
}

.share-btn-copy {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

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

@media (max-width: 480px) {
    .share-section {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }

    .share-section-label {
        justify-content: center;
    }

    .share-buttons {
        justify-content: center;
    }
}

/* ============================================
   Components — CTA Hierarchy (Book Detail)
   ============================================ */
.cta-primary-amazon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 16px 24px;
    font-size: var(--font-size-base);
    font-weight: 700;
    font-family: inherit;
    color: white;
    background: linear-gradient(135deg, #FF9900, #FF8C00);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 16px rgba(255, 153, 0, 0.3);
}

.cta-primary-amazon:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 153, 0, 0.4);
}

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

.cta-primary-amazon .cta-price {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.cta-secondary-rakuten {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 10px 16px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: inherit;
    color: var(--color-danger);
    background: white;
    border: 1.5px solid var(--color-danger);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.cta-secondary-rakuten:hover {
    background: #FFF5F5;
}

.cta-gift-preparing {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: var(--font-size-xs);
    color: var(--color-text-placeholder);
    padding: 6px 0;
}

/* ============================================
   Compare Checkbox on BookCard
   ============================================ */
.book-card-compare-label {
    position: absolute;
    bottom: 8px;
    left: 8px;
    z-index: 5;
    cursor: pointer;
}

.book-card-compare-label input[type="checkbox"] {
    display: none;
}

.compare-checkbox-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: 2px solid var(--color-border);
    color: var(--color-text-sub);
    font-size: 14px;
    transition: all var(--transition-fast);
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.book-card-compare-label input:checked + .compare-checkbox-visual {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   Comparison View
   ============================================ */
.compare-col {
    text-align: center;
    padding: 0 4px;
}

.compare-cover {
    width: 80px;
    height: 104px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-lavender);
    cursor: pointer;
}

.compare-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.compare-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--color-text-sub);
}

.compare-row {
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
}

.compare-row:last-child {
    border-bottom: none;
}

.compare-row-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-sub);
    font-weight: 600;
    margin-bottom: 6px;
}

.compare-row-values {
    display: flex;
    gap: 4px;
}

.compare-cell {
    font-size: var(--font-size-sm);
    text-align: center;
    word-break: break-word;
}

.compare-cell .stars {
    justify-content: center;
    font-size: 11px;
}

/* ============================================
   Analysis Animation (Task 2)
   ============================================ */
.analysis-animation {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.analysis-spinner {
    animation: analysis-spin 2s linear infinite;
}

@keyframes analysis-spin {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

.analysis-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
    width: 100%;
    max-width: 320px;
}

.analysis-step {
    font-size: var(--font-size-sm);
    color: var(--color-text-placeholder);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    transition: all 0.4s ease;
    opacity: 0.4;
}

.analysis-step-active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    opacity: 1;
    font-weight: 600;
}

.analysis-step-done {
    color: var(--color-success);
    opacity: 0.7;
}

.analysis-step-done::after {
    content: ' \2714';
}

.analysis-progress {
    width: 200px;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
}

.analysis-progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 2px;
    animation: analysis-progress-fill 2.8s ease-out forwards;
}

@keyframes analysis-progress-fill {
    0% { width: 0%; }
    35% { width: 35%; }
    70% { width: 70%; }
    100% { width: 100%; }
}

/* ============================================
   Diagnosis Profile Card
   ============================================ */
/* ============================================
   Focus-Visible (Keyboard Navigation)
   ============================================ */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

.chip:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(107, 92, 231, 0.2);
}

.btn:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(107, 92, 231, 0.2);
}

.pill-btn:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(107, 92, 231, 0.2);
}

.book-card:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Remove default outline for mouse clicks */
*:focus:not(:focus-visible) {
    outline: none;
}

.diagnosis-profile {
    border: 1px solid rgba(107, 92, 231, 0.15);
}