/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Navigation Styles */
.navbar {
    background-color: rgba(11, 11, 11, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: nowrap;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    white-space: nowrap;
    padding: 0.5rem 0;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

@media (max-width: 1024px) {
    .nav-links {
        gap: 1rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-brand {
        align-self: flex-start;
    }
}

:root {
    --primary-color: #00D4AA;
    --accent-color: #00D4AA;
    --background-color: #0b0b0b;
    --text-color: #eaeaea;
    --text-secondary: #b8b8b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --bg-secondary: #1a1a1a;
    --container-max-width: 960px;
    --section-padding: 80px 0;
    --mobile-section-padding: 60px 0;
    
    /* キャンペーン用の追加カラー */
    --campaign-accent: #F97316;
    --campaign-bg: #1a1a1a;
    --campaign-card-bg: #2a2a2a;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #2563EB;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

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

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

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

/* β版リリースお知らせバナー */
.beta-announcement {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 12px 0;
    color: white;
    text-align: center;
    position: relative;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.beta-announcement-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.beta-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
}

.beta-announcement-text {
    font-size: 15px;
    font-weight: 500;
}

.beta-announcement-close {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.beta-announcement-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
}

.beta-announcement-content a {
    color: white;
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.3s ease;
    display: block;
    width: 100%;
}

.beta-announcement-content a:hover {
    opacity: 0.9;
}

.beta-announcement-content a .beta-announcement-text {
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.5);
    text-underline-offset: 2px;
}

.beta-announcement-content a:hover .beta-announcement-text {
    text-decoration-color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
    .beta-announcement-content {
        flex-direction: column;
        gap: 8px;
    }
    
    .beta-announcement-close {
        position: static;
        transform: none;
        margin-top: 4px;
    }
}

/* Announcement Bar */
.announcement-bar {
    background-color: var(--primary-color);
    text-align: center;
    padding: 8px 0;
    border-bottom: 2px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.announcement-bar a {
    color: #000000 !important;
    text-decoration: none;
    font-weight: 800;
    font-size: 14px;
}

.announcement-bar a:hover {
    text-decoration: underline;
}

/* キャンペーンお知らせセクション */
.campaign-announcement {
    padding: var(--section-padding);
    background: var(--campaign-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.announcement-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.announcement-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--campaign-accent), #FF8C42);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 18px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.announcement-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.announcement-description {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.7;
}

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

.campaign-item {
    background: var(--campaign-card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.campaign-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.campaign-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.campaign-text h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.campaign-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

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

.announcement-cta .btn-large {
    font-size: 1.2rem;
    padding: 16px 32px;
    margin-bottom: 1rem;
}

.announcement-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Hero Section */
.hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--background-color) 0%, #1a1a1a 100%);
    overflow: hidden;
    padding: 1.5rem 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

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

.hero-title {
    color: var(--text-color);
    margin-bottom: 0.8rem;
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    line-height: 1.3;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-visual {
    position: absolute;
    bottom: -50px;
    right: 20px;
    opacity: 0.15;
    z-index: 1;
}

.steamboat-svg {
    width: 120px;
    height: auto;
    opacity: 0.8;
    filter: none;
    fill: #fff;
    transition: all 0.3s ease;
}

.steamboat-svg:hover {
    opacity: 1.0;
    transform: scale(1.05);
}

/* Section Styles */
section {
    margin-top: 3rem;
    margin-bottom: 3rem;
    padding: var(--section-padding);
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 1rem;
}

/* 実績カードの見出し位置調整 */
.beta-section-title {
    margin-bottom: 0.2rem;
}

.section-description {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-note {
    font-size: 0.9rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 500;
}

/* Overview Section */
.overview {
    background-color: #111111;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.benefit-card {
    text-align: center;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.benefit-subtitle {
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.benefit-card p {
    color: var(--text-secondary);
    margin-top: 0;
}

.cta-small {
    text-align: center;
    margin-top: 2rem;
}

/* How Section */
.how {
    background-color: var(--background-color);
}

.how-steps {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.how-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
}

.step-number {
    background-color: var(--primary-color);
    color: var(--background-color);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.step-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.step-image {
    margin-top: 0;
}

/* Browser Mockup */
.browser-mockup {
    background-color: #2a2a2a;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 600px;
}

.browser-header {
    background-color: #3a3a3a;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.browser-buttons {
    display: flex;
    gap: 6px;
}

.browser-button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.browser-button.red { background-color: #ff5f57; }
.browser-button.yellow { background-color: #ffbd2e; }
.browser-button.green { background-color: #28ca42; }

.browser-url {
    background-color: #1a1a1a;
    color: #888;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-family: monospace;
    flex: 1;
    text-align: left;
}

.browser-content {
    padding: 20px;
    background-color: #f8f9fa;
    color: #333;
}

.site-mockup {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.site-header {
    background-color: #e9ecef;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    border-bottom: 1px solid #dee2e6;
}

.cast-profile {
    padding: 16px;
    border-bottom: 1px solid #dee2e6;
    background-color: #ffffff;
}

.cast-name {
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 4px;
    color: #000 !important;
}

.cast-info {
    font-size: 14px;
    color: #666;
}

.schedule-table {
    background-color: #e8e8e8;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 12px;
    max-width: 100%;
    overflow-x: auto;
    border: 1px solid #ccc;
}

.schedule-header {
    background-color: #d8d8d8;
    display: grid;
    grid-template-columns: 60px repeat(7, 1fr);
    gap: 4px;
    padding: 6px 8px;
    font-weight: 600;
    font-size: 10px;
    color: #333;
    min-width: 400px;
}

.schedule-row {
    display: grid;
    grid-template-columns: 60px repeat(7, 1fr);
    gap: 4px;
    font-size: 10px;
    padding: 3px 8px;
    min-width: 400px;
    background-color: #e8e8e8;
    border-bottom: 1px solid #d0d0d0;
}

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

.available {
    color: #333;
    font-weight: 600;
}

.booked {
    color: #333;
    font-weight: 600;
}

.reserved {
    color: #333;
    font-weight: 600;
}

.schedule-changed {
    background-color: #fff3cd;
    border: 2px solid #ffc107;
    color: #856404;
    font-weight: 700;
}

/* App Mockup */
.app-mockup {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-width: 500px;
    border: 1px solid #e0e0e0;
}

.app-header {
    background-color: #f8f9fa;
    color: #333;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e0e0e0;
}

.app-title {
    font-weight: 700;
    font-size: 18px;
    color: #000;
}

.app-bell {
    font-size: 16px;
}

.app-nav {
    background-color: #ffffff;
    display: flex;
    padding: 0;
    border-bottom: 1px solid #e0e0e0;
}

.nav-tab {
    padding: 12px 20px;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-weight: 500;
}

.nav-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

.app-content {
    padding: 24px;
    background-color: #f8f9fa;
}

.form-group {
    margin-bottom: 20px;
    display: block;
}

.form-group label {
    display: block;
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background-color: #ffffff;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #333;
    font-size: 14px;
    margin-bottom: 12px;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group select {
    width: 100%;
    padding: 12px;
    background-color: #333;
    border: 1px solid #555;
    border-radius: 6px;
    color: var(--text-color);
    font-size: 14px;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.monitored-casts h4 {
    color: var(--text-color);
    margin: 20px 0 10px 0;
    font-size: 14px;
}

.cast-table {
    background-color: #333;
    border-radius: 4px;
    overflow: hidden;
}

.cast-row {
    display: grid;
    grid-template-columns: 1fr 1fr 0.5fr 1fr 1fr;
    gap: 8px;
    padding: 8px 12px;
    font-size: 11px;
    border-bottom: 1px solid #444;
}

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

.cast-name {
    color: var(--text-color);
    font-weight: 500;
}

.cast-store {
    color: var(--text-secondary);
}

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

.cast-date {
    color: var(--text-secondary);
    font-size: 10px;
}

.cast-actions {
    color: var(--primary-color);
    font-size: 10px;
}

.btn-small {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 700;
    background-color: #000;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-small:hover {
    background-color: #333;
    transform: translateY(-1px);
}

/* Email Mockup */
.email-mockup {
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    font-family: monospace;
    font-size: 13px;
}

.email-header {
    background-color: #f0f0f0;
    padding: 12px 16px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

.email-subject, .email-date {
    margin-bottom: 4px;
    color: #333;
}

.email-subject {
    font-weight: 600;
    color: #000;
}

.email-body {
    padding: 16px;
    background-color: #ffffff;
    text-align: left;
}

.email-body p {
    margin-bottom: 8px;
    color: #333;
    line-height: 1.4;
}

.schedule-change {
    background-color: #fff3cd;
    padding: 8px 12px;
    border-left: 3px solid #ffc107;
    margin: 8px 0;
}

.schedule-change p {
    margin-bottom: 4px;
    color: #856404;
    font-weight: 500;
}

.email-body h4 {
    color: #333;
    margin-bottom: 12px;
    font-size: 14px;
}

.change-detail {
    background-color: #f8f9fa;
    padding: 12px;
    border-radius: 4px;
    border-left: 3px solid var(--primary-color);
}

.change-detail h5 {
    color: #333;
    margin-bottom: 8px;
    font-size: 14px;
}

.change-detail p {
    font-size: 12px;
    color: #666;
    margin-bottom: 4px;
}

/* Why Section */
.why {
    background-color: #111111;
}

.why-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.why-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

/* Alpha Section */
.alpha,
.beta {
    background-color: var(--background-color);
}

.alpha-content,
.beta-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.alpha-notice {
    background-color: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 2rem;
}

.alpha-notice h3 {
    color: #ffffff;
    font-weight: 800;
    margin-bottom: 1rem;
    font-size: 24px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 1), 0 0 12px rgba(0, 0, 0, 0.9);
    background-color: rgba(0, 0, 0, 0.3);
    padding: 8px 16px;
    border-radius: 6px;
    display: inline-block;
}

.alpha-notice ul {
    list-style: none;
    padding: 0;
}

.alpha-notice li {
    color: #ffcc00;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1rem;
}

.alpha-notice li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #ffcc00;
    font-weight: bold;
}

/* β版セクション */
.beta-intro {
    text-align: center;
    margin-bottom: 3rem;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
}

.beta-intro p {
    color: var(--text-color);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.beta-section-title {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.5em;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

/* 改善点グリッド */
.beta-improvements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.beta-improvement-card {
    text-align: center;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.beta-improvement-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.improvement-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.beta-improvement-card h4 {
    color: var(--text-color);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.beta-improvement-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* 利用プラングリッド */
.beta-plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.beta-plan-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.beta-plan-free {
    border-color: rgba(0, 212, 170, 0.3);
}

.beta-plan-pro {
    border-color: rgba(249, 115, 22, 0.5);
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.05) 0%, rgba(249, 115, 22, 0.1) 100%);
}

.beta-plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.plan-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.plan-header h4 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.beta-plan-pro .plan-header h4 {
    color: #F97316;
}

.plan-label {
    background: rgba(0, 212, 170, 0.2);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.plan-label-pro {
    background: rgba(249, 115, 22, 0.2);
    color: #F97316;
}

.plan-features {
    color: var(--text-secondary);
    line-height: 1.8;
}

.plan-features p {
    margin-bottom: 0.8rem;
}

.plan-features strong {
    color: var(--text-color);
    font-weight: 600;
}

.plan-price {
    font-size: 1.2rem;
    color: #F97316 !important;
    font-weight: 600;
    margin-bottom: 1rem !important;
}

.plan-price strong {
    font-size: 1.5rem;
    color: #F97316 !important;
}

.beta-plans-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-top: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 限定公開コンテンツセクション */
.limited-content {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    padding: var(--section-padding);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.limited-content-card {
    max-width: var(--container-max-width);
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.8rem;
    text-align: center;
    transition: all 0.3s ease;
}

.limited-content-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.limited-content-title {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.limited-content-description {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

.limited-content-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.limited-content-note {
    margin-top: 1.5rem !important;
    color: var(--primary-color) !important;
    font-weight: 600;
    font-size: 1rem !important;
}

@media (max-width: 768px) {
    .limited-content-card {
        padding: 2rem 1.5rem;
    }
    
    .limited-content-title {
        font-size: 1.5rem;
    }
}

/* Tips Section */
.tips {
    background-color: #111111;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tip-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.tip-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.tip-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.tip-card p {
    color: var(--text-secondary);
}

/* Usecase grid */
.usecase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.usecase-item {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.usecase-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.usecase-item h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.usecase-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--background-color) 0%, #1a1a1a 100%);
    text-align: center;
}

.cta-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--text-color);
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-main-button {
    box-shadow: 0 8px 24px rgba(0, 212, 170, 0.3), 0 4px 12px rgba(0, 212, 170, 0.2);
    transition: all 0.3s ease;
}

.cta-main-button:hover {
    box-shadow: 0 12px 32px rgba(0, 212, 170, 0.4), 0 6px 16px rgba(0, 212, 170, 0.3);
    transform: translateY(-2px);
}

.cta-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

/* Legal Pages */
.legal-page {
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    padding: 2rem 0;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    font-style: italic;
}

.legal-page h1 {
    color: var(--text-color);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-content h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.legal-content h3 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem 0;
}

.legal-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.legal-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.legal-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.legal-footer p {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

/* Footer */
.footer {
    background-color: #111111;
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.footer-section h4 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer-section a:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-note {
    font-size: 0.8rem;
    color: #666;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    :root {
        --section-padding: var(--mobile-section-padding);
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero {
        min-height: 60vh;
        padding: 1.5rem 0;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .hero-visual {
        position: absolute;
        bottom: 10px;
        right: 10px;
    }
    
    .steamboat-svg {
        width: 100px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .how-step {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto 1rem;
    }
    
    .step-image {
        margin-top: 1rem;
    }
    
    .browser-mockup,
    .app-mockup,
    .email-mockup {
        max-width: 100%;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .campaign-details {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 14px 28px;
        font-size: 15px;
    }
    
    .btn-large {
        padding: 18px 36px;
        font-size: 16px;
    }
    
    .benefit-card,
    .tip-card {
        padding: 1.5rem;
    }
    
    .usecase-grid {
        grid-template-columns: 1fr;
    }
    
    .usecase-item {
        padding: 1.5rem;
    }
    
    .alpha-notice {
        padding: 1.5rem;
    }
    
    .beta-improvements-grid {
        grid-template-columns: 1fr;
    }
    
    .beta-plans-grid {
        grid-template-columns: 1fr;
    }
    
    .beta-plan-card {
        padding: 1.5rem;
    }
    
    .limited-content-card {
        padding: 2rem 1.5rem;
    }
    
    .campaign-item {
        padding: 1.5rem;
    }
    
    .plan-table {
        font-size: 0.85rem;
    }
    
    .plan-table th, .plan-table td {
        padding: 8px;
    }
    
    .faq-item {
        padding: 1rem;
    }
    
    .result-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .result-card {
        padding: 1rem 0.5rem;
    }
    
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card {
        padding: 1.2rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus states for accessibility */
.btn:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

.hero-title,
.hero-subtitle,
.section-title {
    animation: fadeInUp 0.8s ease-out;
}

/* Hero value proposition */
.hero-value {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0.8rem 0;
    text-align: center;
    font-weight: 500;
}

.hero-value strong {
    font-size: 1.1rem;
}

.cta-sub {
    margin-top: 0.3rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
    color: var(--text-secondary);
    text-align: center;
}

/* Hero内のコンパクトなキャンペーン告知 */
.hero-campaign {
    margin-top: 2rem;
    padding: 1.2rem 1.5rem;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.15), rgba(255, 140, 66, 0.1));
    border: 1px solid rgba(249, 115, 22, 0.3);
    border-radius: 12px;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-campaign-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--campaign-accent), #FF8C42);
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
}

.hero-campaign-text {
    font-size: 1.15rem;
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
    font-weight: 500;
}

.hero-campaign-note {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.6rem;
    opacity: 0.85;
}

@media (max-width: 768px) {
    .hero-campaign {
        padding: 1rem 1.2rem;
        margin-top: 1.5rem;
    }
    
    .hero-campaign-badge {
        font-size: 0.95rem;
        padding: 0.4rem 1rem;
    }
    
    .hero-campaign-text {
        font-size: 1.05rem;
    }
    
    .hero-campaign-note {
        font-size: 0.8rem;
    }
}

/* Plans grid - Card format */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.plan-card {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    text-align: center;
}

.plan-card.pro {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(0, 212, 170, 0.3), 0 4px 12px rgba(0, 212, 170, 0.15);
    position: relative;
    background: rgba(255, 255, 255, 0.05);
}

.plan-recommend {
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: fit-content;
    background: var(--accent-color);
    color: #fff;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    border-radius: 6px;
    font-weight: 600;
}

.plan-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.plan-card .price {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 0.8rem;
    color: var(--text-color);
}

.plan-card ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.plan-card li {
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.plan-card .badge {
    margin-top: 1rem;
    background: var(--accent-color);
    color: #fff;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    font-size: 0.85rem;
    display: inline-block;
    font-weight: 600;
}

/* α版実績カード */
.alpha-results {
    margin-top: 3rem;
}

.result-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.result-card {
    padding: 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    text-align: center;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

.result-label {
    margin-top: 0.4rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.result-note {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
}

/* β版特別コンテンツ ボタン */
.special-button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.7rem 1.4rem;
    background: var(--accent-color);
    color: #fff;
    border-radius: 8px;
    font-size: 0.95rem;
    text-decoration: none;
    transition: 0.2s ease;
}

.special-button:hover {
    opacity: 0.85;
}

/* FAQ */
.faq {
    margin-top: 1.8rem;
    padding-top: 1.8rem;
    border-top: 1px solid var(--border-color);
}

.faq-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: 8px;
}

.faq-item h3 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.faq-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}