/* ==========================================
   Re:anne clinic Ginza - Enhanced Custom Styles
   ========================================== */

/* Root Variables */
:root {
    --accent-color: #b8a398;
    --sub-color: #fafafa;
    --text-dark: #4a4a4a;
    --text-brown: #8b7969;
    --bg-light: #f8f8f8;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --transition-base: all 0.3s ease;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
    color: var(--text-dark);
    background-color: #FFFFFF;
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, .font-serif {
    font-family: 'Noto Serif JP', serif;
    font-weight: 400;
    letter-spacing: 0.05em;
}

/* Utility Classes */
.bg-accent { background-color: var(--accent-color); }
.text-accent { color: var(--accent-color); }
.border-accent { border-color: var(--accent-color); }
.bg-sub { background-color: var(--sub-color); }
.text-brown { color: var(--text-brown); }
.bg-light { background-color: var(--bg-light); }

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    transition: var(--transition-base);
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-md);
    font-weight: 500;
}

.btn-primary:hover {
    background-color: rgba(184, 163, 152, 0.9);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-secondary {
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    background-color: transparent;
}

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: white;
}

/* Enhanced Campaign Section */
.campaign-price {
    color: var(--accent-color);
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.campaign-card {
    position: relative;
    overflow: hidden;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

/* Recommended For Section Icons */
.recommend-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 1rem;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.recommend-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.recommend-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
    border-radius: 50%;
    overflow: hidden;
    background-color: #faf8f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.recommend-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.recommend-text {
    text-align: center;
    color: var(--text-dark);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Concern Cards - Updated Styles */
.concern-card {
    transition: all 0.3s ease;
    display: block;
}

.concern-card:hover {
    transform: translateY(-4px);
}

.concern-card img {
    filter: none;
}

.campaign-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.campaign-card img {
    transition: transform 0.3s ease;
}

.campaign-card:hover img {
    transform: scale(1.1);
}

/* Concern Cards with Images */
.concern-card {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    transition: var(--transition-base);
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.3) 100%);
}

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

.concern-card img {
    transition: all 0.5s ease;
    filter: brightness(0.8);
}

.concern-card:hover img {
    transform: scale(1.1);
    filter: brightness(1);
}

/* Treatment Flow Visual */
.flow-step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.flow-step::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--accent-color), transparent);
    transform: translateY(-50%);
}

.flow-step:last-child::after {
    display: none;
}

@media (max-width: 768px) {
    .flow-step::after {
        display: none;
    }
}

/* Before/After Image Styles */
.before-after-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.before-after-grid img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 0.25rem;
    transition: transform 0.3s ease;
}

.before-after-grid img:hover {
    transform: scale(1.05);
}

/* Enhanced Hero Section */
.hero-with-face {
    background: linear-gradient(to right, rgba(255,255,255,0.95), rgba(255,255,255,0.7), transparent);
}

#hero {
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.2) 100%);
    pointer-events: none;
}

/* Section Styles */
.section-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 400;
    letter-spacing: 0.08em;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

.section-subtitle {
    text-align: center;
    color: #666666;
    margin-bottom: 3rem;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

/* Card Styles */
.card {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-base);
    border: 1px solid var(--border-color);
}

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

/* Header Styles */
#main-header {
    transition: background-color 0.3s, padding 0.3s, border-color 0.3s;
}

#main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    border-color: rgba(224, 224, 224, 0.5);
}

/* Logo Styles */
header img {
    height: 2.5rem;
    width: auto;
    object-fit: contain;
}

@media (min-width: 768px) {
    header img {
        height: 4rem;
    }
}

/* Navigation Styles */
nav a {
    position: relative;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background-color: var(--accent-color);
    transition: width 0.3s ease, left 0.3s ease;
}

nav a:hover::after {
    width: 100%;
    left: 0;
}

/* Mobile Menu Styles */
#mobile-menu {
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

#mobile-menu.hidden {
    transform: translateX(100%);
    opacity: 0;
}

/* Visual Enhancement for Features */
#features .relative {
    position: relative;
}

#features .relative img {
    transition: transform 0.3s ease;
}

#features .relative:hover img {
    transform: scale(1.05);
}

/* Recommendation Section */
.recommendation-card {
    background: white;
    border-radius: 0.5rem;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition-base);
}

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

.recommendation-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

/* Price Card Enhancement */
.price-card-enhanced {
    position: relative;
    background: linear-gradient(to bottom right, white, var(--sub-color));
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.price-card-enhanced:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.price-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    display: block;
}

/* Animation Classes */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8,0,1,1);
    }
    50% {
        transform: none;
        animation-timing-function: cubic-bezier(0,0,0.2,1);
    }
}

.animate-bounce {
    animation: bounce 1s infinite;
}

/* Gradient Backgrounds */
.bg-gradient-to-r {
    background-image: linear-gradient(to right, var(--start-color), var(--end-color));
}

.bg-gradient-to-b {
    background-image: linear-gradient(to bottom, var(--start-color), var(--end-color));
}

.from-accent { --start-color: var(--accent-color); }
.to-brown { --start-color: var(--text-brown); }
.from-brown { --start-color: var(--text-brown); }
.to-accent { --end-color: var(--accent-color); }
.from-white { --start-color: white; }
.to-sub { --end-color: var(--sub-color); }

/* Footer Styles */
footer {
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* Responsive Adjustments */
@media (max-width: 767px) {
    .btn {
        padding: 0.625rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.875rem;
        margin-bottom: 2rem;
    }
    
    #hero h1 {
        font-size: 1.875rem;
    }
    
    .campaign-price {
        font-size: 2rem;
    }
    
    .flow-step {
        margin-bottom: 2rem;
    }
    
    .flow-step .w-24 {
        width: 80px;
        height: 80px;
    }
}

/* Print Styles */
@media print {
    #main-header,
    #mobile-menu-button,
    .btn,
    footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .card {
        break-inside: avoid;
    }
}