/* ==========================================
   Base Styles & Variables
========================================== */
:root {
    /* カラーパレット */
    --primary-blue: #1a365d;        /* ディープブルー */
    --secondary-blue: #2c5282;      /* セカンダリブルー */
    --accent-orange: #ff6b35;       /* ビビッドオレンジ */
    --accent-yellow: #ffd60a;       /* アクセントイエロー */
    --warning-red: #e53e3e;         /* 警告レッド */
    
    /* グレースケール */
    --white: #ffffff;
    --light-gray: #f7fafc;
    --medium-gray: #e2e8f0;
    --dark-gray: #4a5568;
    --black: #1a202c;
    
    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    
    /* スペーシング */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    --border-radius: 8px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* ==========================================
   Global Styles
========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.7;
    color: var(--black);
    background-color: var(--white);
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ==========================================
   Typography
========================================== */
.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-black);
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.2;
}

.emphasis {
    color: var(--accent-orange);
    position: relative;
}

.emphasis::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-yellow));
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ==========================================
   Buttons & CTAs
========================================== */
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.cta-btn.primary {
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    color: var(--white);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

.cta-btn.secondary {
    background: var(--primary-blue);
    color: var(--white);
}

.cta-btn.secondary:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

.cta-btn.tertiary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.cta-btn.large {
    padding: 20px 30px;
    font-size: 1.1rem;
}

/* 固定CTAボタン */
.fixed-cta {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cta-btn-fixed {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: var(--font-weight-bold);
    font-size: 0.9rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    animation: bounce 2s infinite;
    transition: all 0.3s ease;
}

.cta-btn-fixed.primary {
    background: var(--accent-orange);
    color: var(--white);
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.4);
}

.cta-btn-fixed.secondary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 5px 20px rgba(26, 54, 93, 0.4);
}

.cta-btn-fixed:hover {
    transform: translateY(-2px);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-5px); }
    60% { transform: translateY(-3px); }
}

/* ==========================================
   Hero Section
========================================== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-black);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-title .emphasis {
    color: var(--accent-orange);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: var(--font-weight-medium);
    margin-bottom: 3rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* 価格比較 */
.price-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.price-before .strikethrough {
    font-size: 2rem;
    color: var(--medium-gray);
    text-decoration: line-through;
    font-weight: var(--font-weight-bold);
}

.price-arrow i {
    font-size: 2rem;
    color: var(--accent-yellow);
    animation: moveArrow 1.5s infinite;
}

@keyframes moveArrow {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(10px); }
}

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

.highlight-price {
    font-size: 3.5rem;
    font-weight: var(--font-weight-black);
    color: var(--accent-yellow);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: block;
}

.price-after small {
    font-size: 1rem;
    color: var(--light-gray);
    display: block;
    margin-top: 0.5rem;
}

.hero-cta {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ==========================================
   Problems Section
========================================== */
.problems-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.problem-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.problem-item:hover {
    transform: translateY(-5px);
}

.problem-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--warning-red), #fc8181);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.problem-content h3 {
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
}

.problem-content p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ==========================================
   Solution Section
========================================== */
.solution-section {
    padding: var(--section-padding);
    background: var(--white);
}

.dual-approach {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

.approach-item {
    flex: 1;
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.approach-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.approach-icon i {
    font-size: 2rem;
    color: var(--white);
}

.approach-item h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
}

.approach-connector {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.gear-animation {
    display: flex;
    gap: 10px;
}

.gear-animation i {
    font-size: 2rem;
    color: var(--accent-orange);
    animation: rotate 3s linear infinite;
}

.gear-animation i:nth-child(2) {
    animation-direction: reverse;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================
   Features Section
========================================== */
.features-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-number {
    position: absolute;
    top: -15px;
    left: 2rem;
    background: var(--accent-orange);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: var(--font-weight-bold);
    font-size: 0.9rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.feature-card p {
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    color: var(--dark-gray);
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
}

.feature-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-weight: var(--font-weight-bold);
}

/* ==========================================
   Cost Section
========================================== */
.cost-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    color: var(--white);
    text-align: center;
}

.cost-section .section-title {
    color: var(--white);
}

.cost-highlight {
    background: rgba(255, 255, 255, 0.1);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    margin-top: 3rem;
}

.cost-main {
    margin-bottom: 2rem;
}

.cost-label {
    display: block;
    font-size: 1.2rem;
    font-weight: var(--font-weight-medium);
    margin-bottom: 1rem;
}

.cost-amount {
    font-size: 4rem;
    font-weight: var(--font-weight-black);
    color: var(--accent-yellow);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: block;
}

.cost-details {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: var(--font-weight-medium);
}

.benefit-item i {
    color: var(--accent-yellow);
    font-size: 1.2rem;
}

/* ==========================================
   Testimonials Section
========================================== */
.testimonials-section {
    padding: var(--section-padding);
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--light-gray);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    position: relative;
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-quote i {
    font-size: 2rem;
    color: var(--accent-orange);
    margin-bottom: 1rem;
}

.testimonial-quote p {
    font-size: 1.1rem;
    font-weight: var(--font-weight-medium);
    color: var(--primary-blue);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.testimonial-author .industry {
    font-weight: var(--font-weight-bold);
    color: var(--dark-gray);
}

/* ==========================================
   CTA Section
========================================== */
.cta-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-black);
    margin-bottom: 3rem;
    line-height: 1.3;
}

.cta-title .warning {
    color: var(--accent-orange);
    display: block;
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.cta-buttons .cta-btn {
    min-width: 400px;
}

/* ==========================================
   Footer
========================================== */
.footer {
    background: var(--black);
    color: var(--light-gray);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.company-info h3 {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-orange);
}

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

/* ==========================================
   Utility Classes
========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* ==========================================
   Curriculum Section
========================================== */
.curriculum-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--dark-gray);
    margin-bottom: 3rem;
    font-weight: var(--font-weight-medium);
}

/* タブナビゲーション */
.curriculum-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 15px 30px;
    background: var(--white);
    border: 2px solid var(--medium-gray);
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--dark-gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 54, 93, 0.3);
}

.tab-btn:hover:not(.active) {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.tab-btn i {
    font-size: 1.2rem;
}

/* カリキュラムコンテンツ */
.curriculum-content {
    display: none;
}

.curriculum-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.curriculum-overview {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.curriculum-overview h3 {
    font-size: 1.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.curriculum-overview p {
    font-size: 1.1rem;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* AIアカデミー カリキュラムグリッド */
.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.curriculum-category {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.curriculum-category:hover {
    transform: translateY(-5px);
}

.category-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 1.5rem;
    position: relative;
}

.category-number {
    position: absolute;
    top: -10px;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-black);
    font-size: 1.1rem;
}

.category-header h4 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.video-count {
    font-size: 0.9rem;
    color: var(--accent-yellow);
    font-weight: var(--font-weight-medium);
}

.category-content {
    padding: 1.5rem;
}

.category-content ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-content li {
    color: var(--dark-gray);
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.5;
}

.category-content li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-size: 0.8rem;
}

/* AIブートキャンプ カリキュラム */
.bootcamp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.bootcamp-ability {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: transform 0.3s ease;
    position: relative;
}

.bootcamp-ability:hover {
    transform: translateY(-5px);
}

.ability-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.ability-icon i {
    font-size: 2rem;
    color: var(--white);
}

.bootcamp-ability h4 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.bootcamp-ability p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.workshop-format {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 8px;
}

.format-tag {
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-orange);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.workshop-format span:last-child {
    font-size: 0.9rem;
    color: var(--dark-gray);
    font-weight: var(--font-weight-medium);
}

/* ブートキャンプ特別プログラム */
.bootcamp-special-features {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 3rem;
}

.bootcamp-special-features h4 {
    font-size: 1.6rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 2rem;
}

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

.special-program-item {
    background: linear-gradient(135deg, var(--light-gray), var(--white));
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-orange);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.special-program-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.program-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.program-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.special-program-item h5 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.program-subtitle {
    font-size: 1rem;
    color: var(--accent-orange);
    font-weight: var(--font-weight-medium);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.program-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.program-features li {
    color: var(--dark-gray);
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.5;
}

.program-features li::before {
    content: '✨';
    position: absolute;
    left: 0;
    font-size: 0.9rem;
}

/* カリキュラムCTA */
.curriculum-cta {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.curriculum-cta .cta-text {
    font-size: 1.2rem;
    font-weight: var(--font-weight-medium);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.curriculum-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .curriculum-tabs {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .curriculum-grid {
        grid-template-columns: 1fr;
    }
    
    .bootcamp-grid {
        grid-template-columns: 1fr;
    }
    
    .special-program-grid {
        grid-template-columns: 1fr;
    }
    
    .curriculum-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .curriculum-buttons .cta-btn {
        width: 100%;
        max-width: 300px;
    }
}