/* Design System - Height Growth Supplement Media */
:root {
    /* Colors */
    --primary: #4A90E2;
    --primary-light: #E3F2FD;
    --primary-dark: #1976D2;
    --accent: #FF8A65;
    --text: #2C3E50;
    --text-muted: #7F8C8D;
    --bg: #F9FBFF;
    --bg-light: #FFFFFF;
    --white: #FFFFFF;
    
    /* Glassmorphism */
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    
    /* Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 32px;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);
}

* {
  box-sizing: border-box;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', 'Noto Sans JP', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 5%;
}

section {
  padding: var(--space-lg) 0;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Glassmorphism Classes */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

/* Base Components */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn:hover {
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #FF7043);
    color: var(--white);
}

/* Standardize Premium Components */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.ranking-card {
    display: flex;
    gap: var(--space-md);
    padding: 2.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    position: relative;
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .ranking-card {
        flex-direction: column;
        padding: 1.5rem;
    }
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 4rem;
}

/* Specialist Box */
.specialist-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

/* Footer Styling */
footer {
    background: var(--text);
    color: white;
    padding: 4rem 0 6rem;
}

footer a {
    color: white;
    opacity: 0.7;
    text-decoration: none;
}

footer a:hover {
    opacity: 1;
}

/* Dropdown Menu */
.main-nav > ul > li {
    position: relative;
    padding: 0.5rem 0;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    min-width: 220px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    padding: 1rem 0;
    list-style: none;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(255, 255, 255, 0.95);
}

.main-nav > ul > li:hover .dropdown {
    opacity: 1;
    pointer-events: all;
    transform: translateX(-50%) translateY(0);
}

.dropdown li {
    width: 100%;
}

.dropdown li a {
    display: block;
    padding: 0.7rem 1.5rem;
    color: var(--text) !important;
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.2s;
    text-align: left;
}

.dropdown li a:hover {
    background: var(--primary-light);
    color: var(--primary) !important;
    padding-left: 1.8rem;
    opacity: 1;
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 9999;
        padding: 5rem 2rem 2rem;
        transition: right 0.4s cubic-bezier(0.23, 1, 0.32, 1);
        box-shadow: -10px 0 30px rgba(0,0,0,0.15);
        overflow-y: auto;
    }
    .main-nav.open { right: 0; }
    .main-nav > ul {
        flex-direction: column !important;
        gap: 0 !important;
    }
    .main-nav > ul > li {
        border-bottom: 1px solid var(--glass-border);
        padding: 1rem 0 !important;
    }
    .dropdown {
        position: static !important;
        transform: none !important;
        opacity: 1 !important;
        pointer-events: all !important;
        box-shadow: none !important;
        background: var(--primary-light) !important;
        border: none !important;
        border-radius: var(--radius-sm) !important;
        margin-top: 0.5rem;
        padding: 0.5rem 0 !important;
    }
    .dropdown::before { display: none; }
}

/* Hamburger Toggle */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 10000;
    padding: 8px;
}
.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

@media (max-width: 768px) {
    .hamburger { display: flex; }
}

/* Mobile Nav Overlay */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 9998;
}
.nav-overlay.open { display: block; }

/* Reviews Section */
.review-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.review-stars { color: #FFB300; font-size: 1.2rem; letter-spacing: 2px; }
.review-meta { font-size: 0.8rem; color: var(--text-muted); margin-top: 1rem; }

/* Campaign Badge */
.campaign-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: linear-gradient(135deg, #FF5252, #FF1744);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(255,23,68,0.4);
    animation: pulse-badge 2s infinite;
    z-index: 5;
}
@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

/* CTA Pulse */
.cta-pulse {
    animation: cta-glow 2s ease-in-out infinite;
}
@keyframes cta-glow {
    0%, 100% { box-shadow: 0 5px 15px rgba(255,138,101,0.3); }
    50% { box-shadow: 0 5px 30px rgba(255,138,101,0.6); }
}

/* SEO Column Styles */
.seo-column {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-lg) 5%;
}

.intro-section {
    margin-bottom: var(--space-lg);
}

.seo-column h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--primary);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.seo-column h2 {
    font-size: 2rem;
    margin: 4rem 0 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-light);
    color: var(--text);
}

.seo-column h3 {
    font-size: 1.5rem;
    margin: 2.5rem 0 1rem;
    color: var(--primary-dark);
}

.seo-column p {
    margin-bottom: 1.5rem;
    color: var(--text);
    font-size: 1.05rem;
}

.lead {
    font-size: 1.3rem !important;
    font-weight: 700;
    color: var(--primary-dark) !important;
    margin-bottom: 2rem !important;
}

.key-points-box {
    background: var(--primary-light);
    padding: 2.5rem;
    border-radius: var(--radius-md);
    margin: 3rem 0;
    border-left: 8px solid var(--primary);
}

.key-points-box h3 {
    margin-top: 0;
    color: var(--primary-dark);
}

.key-points-box ul {
    list-style: none;
}

.key-points-box li {
    padding: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.key-points-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

blockquote {
    background: #FFF9F5;
    border-left: 5px solid var(--accent);
    padding: 2rem;
    margin: 3rem 0;
    font-style: italic;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.research-table {
    margin: 3rem 0;
    overflow-x: auto;
}

.research-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.research-table th {
    background: var(--primary);
    color: white;
    padding: 1.2rem;
    text-align: left;
}

.research-table td {
    padding: 1.2rem;
    border-bottom: 1px solid var(--primary-light);
}

.food-grid, .support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.food-card, .support-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--primary);
}

.food-card h4, .support-card h4 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.faq-item {
    margin-bottom: 2rem;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.question {
    font-weight: 800;
    color: var(--primary-dark);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

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

.cta-box {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    margin: 4rem 0;
}

.cta-box p {
    color: white !important;
}

.cta-box strong {
    font-size: 1.4rem;
    display: block;
    margin-bottom: 1rem;
}

@media (max-width: 480px) {
    .seo-column h1 { font-size: 2rem; }
    .seo-column h2 { font-size: 1.6rem; }
}

/* Breadcrumb Navigation */
.breadcrumb {
    padding: 1rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 0.5rem; opacity: 0.5; }

/* Mobile Floating CTA Bar */
@media (max-width: 768px) {
    .floating-cta-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.95);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        padding: 0.8rem 1rem;
        display: flex;
        gap: 0.5rem;
        align-items: center;
        justify-content: center;
        z-index: 2001;
        box-shadow: 0 -5px 20px rgba(0,0,0,0.1);
        border-top: 1px solid var(--glass-border);
    }
    .floating-cta-bar .btn { padding: 0.8rem 1.5rem; font-size: 0.9rem; flex: 1; max-width: 300px; }
}
@media (min-width: 769px) { .floating-cta-bar { display: none; } }

/* Feedback Button */
.feedback-section { text-align: center; padding: 2rem; margin: 2rem 0; background: var(--bg); border-radius: var(--radius-md); }
.feedback-btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    margin: 0 0.5rem;
    border-radius: 50px;
    border: 2px solid var(--glass-border);
    background: white;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}
.feedback-btn:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

/* Email Capture */
.email-capture {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
}
.email-capture input[type="email"] {
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    width: 100%;
    max-width: 350px;
    outline: none;
}
.email-capture .btn { margin-top: 1rem; }

/* Related Articles */
.related-articles { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.related-article-card {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
    transition: transform 0.3s, box-shadow 0.3s;
}
.related-article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.related-article-card a { font-weight: 700; color: var(--text); text-decoration: none; display: block; }
.related-article-card p { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; }