/* ========================================
   INVESTMATE - Refined Landing Page
   Minimal, Elegant, Story-driven
   ======================================== */

/* Variables */
:root {
    --color-primary: #1a2f4a;
    --color-primary-light: #2d4a6f;
    --color-accent: #c9a86c;
    --color-accent-hover: #d4b87d;
    --color-text: #2c2c2c;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-bg: #ffffff;
    --color-bg-light: #f7f7f5;
    --color-bg-dark: #1a2f4a;
    --color-border: #e5e5e5;
    
    --font-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --space-2xl: 120px;
    
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 2;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

strong {
    font-weight: 600;
}

/* Container */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: 680px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    border-bottom-color: var(--color-border);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-primary);
}

.header-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-light);
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.header-link:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Hero Banner */
.hero-banner {
    margin-top: 70px;
    width: 100%;
    overflow: hidden;
}

.hero-banner-image {
    width: 100%;
    height: auto;
    display: block;
}

/* Feature Banner */
.feature-banner {
    width: 100%;
    overflow: hidden;
}

.feature-banner-image {
    width: 100%;
    height: auto;
    display: block;
}

/* Hero */
.hero {
    padding: var(--space-xl) 0;
    text-align: center;
}

.hero-eyebrow {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-muted);
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
}

.hero-title {
    font-size: clamp(28px, 6vw, 44px);
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.hero-lead {
    font-size: clamp(18px, 4vw, 24px);
    font-weight: 300;
    color: var(--color-text-light);
    line-height: 1.8;
}

.hero-lead br + strong,
.hero-lead strong {
    font-weight: 500;
    color: var(--color-text);
}

/* Section */
.section {
    padding: var(--space-xl) 0;
}

.section-dark {
    background: var(--color-bg-dark);
    color: white;
}

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

.section-final {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
}

/* Difference Section */
.section-difference {
    background: var(--color-bg-light);
}

.difference-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.difference-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.difference-item {
    padding: var(--space-md);
    border-radius: 8px;
}

.difference-others {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
}

.difference-us {
    background: linear-gradient(135deg, #1a2f4a 0%, #2d4a6f 100%);
    color: white;
}

.difference-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.difference-us .difference-title {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.difference-item ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.difference-item li {
    font-size: 14px;
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}

.difference-others li {
    color: var(--color-text-light);
}

.difference-others li::before {
    content: "・";
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

.difference-us li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.supervisor-note {
    background: white;
    padding: var(--space-md);
    border-radius: 8px;
    border-left: 3px solid var(--color-accent);
}

.supervisor-text {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text);
}

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

@media (max-width: 600px) {
    .difference-compare {
        grid-template-columns: 1fr;
    }
}

/* Content Block */
.content-block {
    max-width: 100%;
}

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

.text-white {
    color: white;
}

.text-white p,
.text-white li {
    color: rgba(255, 255, 255, 0.85);
}

/* Section Titles */
.section-title-simple {
    font-size: clamp(22px, 4vw, 28px);
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.text-white .section-title-simple {
    color: white;
}

.section-lead {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

/* Text Content */
.text-content {
    font-size: 16px;
    line-height: 2.2;
}

.text-content p {
    margin-bottom: var(--space-md);
}

.text-content p:last-child {
    margin-bottom: 0;
}

.emphasis-text {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-primary);
    padding: var(--space-md);
    background: var(--color-bg-light);
    border-left: 3px solid var(--color-accent);
    margin-top: var(--space-lg);
}

/* Simple List */
.simple-list {
    margin: var(--space-lg) 0;
}

.simple-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: var(--space-sm);
    color: var(--color-text-light);
}

.simple-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

/* Statement Group */
.statement-group {
    margin: var(--space-lg) 0;
    padding: var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.statement {
    font-size: 15px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-xs);
    padding-left: var(--space-md);
    position: relative;
}

.statement::before {
    content: "×";
    position: absolute;
    left: 0;
    color: rgba(255, 255, 255, 0.4);
}

.statement:last-child {
    margin-bottom: 0;
}

/* Divider */
.divider {
    height: 1px;
    background: var(--color-border);
    max-width: 100px;
    margin: 0 auto;
}

/* Gallery */
.section-gallery {
    padding: var(--space-lg) 0;
    background: var(--color-bg-light);
    overflow: hidden;
}

.gallery-scroll {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    padding: var(--space-sm) var(--space-md);
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.gallery-scroll::-webkit-scrollbar {
    display: none;
}

.gallery-item {
    flex: 0 0 260px;
    scroll-snap-align: center;
}

.gallery-item img {
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* Feature List */
.feature-list {
    margin: var(--space-lg) 0;
}

.feature-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 15px;
    color: var(--color-text);
}

.feature-list li:last-child {
    border-bottom: none;
}

/* Highlight Box */
.highlight-box {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-primary);
    color: white;
    border-radius: 8px;
    text-align: center;
}

.highlight-box p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-xs);
}

.highlight-box .highlight-main {
    font-size: 18px;
    font-weight: 600;
    color: white;
    margin-bottom: 0;
}

/* Badge */
.badge-important {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: white;
    background: #c44;
    padding: 3px 10px;
    border-radius: 3px;
    margin-left: var(--space-sm);
    vertical-align: middle;
}

/* Don't List */
.dont-list {
    margin: var(--space-md) 0 var(--space-lg);
}

.dont-list li {
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xs);
    background: white;
    border-left: 3px solid #c44;
    font-size: 15px;
}

.section-light .dont-list li {
    background: white;
}

/* Two Column */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.column {
    padding: var(--space-lg);
    border-radius: 12px;
}

.column-fit {
    background: linear-gradient(135deg, #f0f7f4 0%, #e8f4ec 100%);
    border: 1px solid #c5ddd0;
}

.column-notfit {
    background: linear-gradient(135deg, #fdf5f5 0%, #fce8e8 100%);
    border: 1px solid #f0c5c5;
}

.column-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.column-list li {
    font-size: 14px;
    padding: var(--space-xs) 0;
    color: var(--color-text);
    position: relative;
    padding-left: 16px;
}

.column-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

.column-note {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px dashed #dcc;
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
}

.column-note strong {
    display: block;
    color: var(--color-primary);
    font-size: 16px;
    margin-top: var(--space-xs);
}

/* Trial Features */
.trial-features {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
    flex-wrap: wrap;
}

.trial-features li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding-left: 20px;
}

.trial-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Trial Message */
.trial-message {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
}

.trial-message p {
    margin-bottom: var(--space-sm);
}

.trial-choice {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xs) !important;
}

.trial-simple {
    margin-top: var(--space-md) !important;
    font-weight: 500;
    color: white !important;
}

/* Login Methods */
.login-methods {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.login-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-sm);
}

.login-icons {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-sm);
}

.login-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

.login-icon:hover {
    background: rgba(255, 255, 255, 0.2);
}

.login-icon svg {
    flex-shrink: 0;
}

.login-note {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* Pricing */
.pricing-block {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg-light);
    border-radius: 16px;
}

.pricing-label {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.pricing-amount {
    margin-bottom: var(--space-sm);
}

.pricing-prefix {
    font-size: 14px;
    color: var(--color-text-light);
}

.pricing-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 var(--space-xs);
}

.pricing-suffix {
    font-size: 14px;
    color: var(--color-text-light);
}

.pricing-note {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.pricing-features {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.pricing-features li {
    font-size: 13px;
    color: var(--color-text-light);
}

/* Final Section */
.final-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.final-highlight {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-primary);
    padding: var(--space-md);
    background: white;
    border-radius: 8px;
    margin: var(--space-md) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.final-highlight strong {
    color: var(--color-accent);
}

.final-message {
    font-size: 16px;
    color: var(--color-text-light);
    margin-top: var(--space-md);
}

/* CTA Section */
.section-cta {
    padding: var(--space-xl) 0;
    text-align: center;
    background: var(--color-bg-light);
}

.release-notice {
    margin-bottom: var(--space-lg);
}

.release-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: white;
    background: var(--color-accent);
    padding: 6px 16px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
}

.release-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-primary);
}

.cta-button {
    display: inline-block;
    padding: 20px 48px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--color-primary);
    border-radius: 6px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(26, 47, 74, 0.3);
}

.cta-button:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(26, 47, 74, 0.4);
}

.cta-note {
    margin-top: var(--space-md);
    font-size: 14px;
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    padding: var(--space-xl) 0 var(--space-lg);
    background: var(--color-bg-dark);
    color: white;
    text-align: center;
}

.footer-brand {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 1px;
    margin-bottom: var(--space-lg);
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.footer-nav a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-nav a:hover {
    color: white;
}

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    :root {
        --space-xl: 60px;
        --space-lg: 36px;
    }
    
    .hero-banner {
        margin-top: 60px;
    }
    
    .hero {
        padding: var(--space-lg) 0;
    }
    
    .two-column {
        grid-template-columns: 1fr;
    }
    
    .trial-features {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
    
    .pricing-features {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .gallery-item {
        flex: 0 0 220px;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .header .container {
        height: 60px;
    }
    
    .header-link {
        font-size: 12px;
        padding: 8px 14px;
    }
    
    .hero-banner {
        margin-top: 60px;
    }
    
    .hero {
        padding: var(--space-md) 0 var(--space-lg);
    }
    
    .section-title-simple {
        font-size: 22px;
    }
    
    .pricing-value {
        font-size: 40px;
    }
    
    .cta-button {
        padding: 18px 36px;
        font-size: 15px;
    }
    
    .column {
        padding: var(--space-md);
    }
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll offset */
[id] {
    scroll-margin-top: 80px;
}