/* ========================================
   LaLa GLOBAL LANGUAGE - 英語LP スタイル
   ======================================== */

/* CSS Variables */
:root {
    --primary-color: #4A90D9;
    --primary-dark: #3A7BC8;
    --accent-color: #FF9E4A;
    --accent-dark: #E88A3A;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--bg-white);
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utilities */
.sp-only {
    display: inline;
}

.highlight {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    color: white;
    box-shadow: 0 4px 16px rgba(255, 158, 74, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 158, 74, 0.5);
    color: white;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 18px;
}

/* Section Styles */
.section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    line-height: 1.4;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.logo-img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.logo-sub {
    font-size: 10px;
    color: var(--text-light);
    letter-spacing: 1px;
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-md);
}

.nav.active {
    display: block;
}

.nav-list {
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 16px;
}

.nav-list a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
}

.nav-cta {
    display: inline-block;
    background: var(--accent-color);
    color: white !important;
    padding: 10px 20px !important;
    border-radius: var(--radius-sm);
    text-align: center;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: 120px 0 60px;
    background-image:
        linear-gradient(135deg, rgba(74, 144, 217, 0.6) 0%, rgba(255, 158, 74, 0.5) 100%),
        url('../images/AdobeStock_591959294.jpeg');
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 48px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    margin: 0 auto;
}

.hero-label {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 16px;
}

.hero-title .highlight {
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 14px;
}

.badge i {
    color: var(--accent-color);
}

.hero-note {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Problems Section
   ======================================== */
.problems {
    padding: 60px 0;
    background: var(--bg-white);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.problem-card {
    background: var(--bg-light);
    padding: 24px 16px;
    border-radius: var(--radius-md);
    text-align: center;
}

.problem-icon {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    box-shadow: var(--shadow-sm);
}

.problem-icon i {
    font-size: 20px;
    color: var(--primary-color);
}

.problem-card p {
    font-size: 14px;
    line-height: 1.6;
}

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

.problems-solution i {
    font-size: 24px;
    color: var(--primary-color);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.solution-text {
    font-size: 20px;
    font-weight: 700;
    margin-top: 16px;
}

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

/* ========================================
   Features Section
   ======================================== */
.features {
    padding: 60px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.feature-number {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 48px;
    font-weight: 700;
    color: var(--bg-light);
    line-height: 1;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.feature-icon i {
    font-size: 24px;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
}

/* ========================================
   Lessons Section
   ======================================== */
.lessons {
    padding: 60px 0;
    background: var(--bg-white);
}

.lessons-grid {
    display: grid;
    gap: 16px;
}

.lesson-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.lesson-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

.lesson-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.lesson-icon i {
    font-size: 20px;
    color: var(--primary-color);
}

.lesson-card h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.lesson-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    padding: 60px 0;
    background: linear-gradient(135deg, #E8F4FD 0%, #FFF5EB 100%);
}

.pricing-grid {
    display: grid;
    gap: 24px;
    margin-bottom: 24px;
}

.pricing-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    position: relative;
}

.pricing-card.popular {
    border: 3px solid var(--accent-color);
    transform: scale(1.02);
}

.popular-badge {
    position: absolute;
    top: 0;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 0 0 8px 8px;
}

.pricing-header {
    padding: 24px 24px 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.pricing-header h3 {
    font-size: 24px;
    margin-bottom: 4px;
}

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

.pricing-body {
    padding: 24px;
}

.pricing-amount {
    text-align: center;
    margin-bottom: 20px;
}

.pricing-amount .price {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-amount .price-unit {
    font-size: 16px;
    color: var(--text-light);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.pricing-features i {
    color: var(--primary-color);
    font-size: 14px;
}

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

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
    padding: 60px 0;
    background: var(--bg-white);
}

.testimonials-grid {
    display: grid;
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-lg);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial-avatar i {
    font-size: 20px;
    color: white;
}

.testimonial-name {
    font-weight: 700;
    font-size: 16px;
}

.testimonial-meta {
    font-size: 13px;
    color: var(--text-light);
}

.testimonial-rating {
    margin-bottom: 12px;
}

.testimonial-rating i {
    color: #FFD700;
    font-size: 14px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.8;
}

/* ========================================
   Flow Section
   ======================================== */
.flow {
    padding: 60px 0;
    background: var(--bg-light);
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.flow-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.flow-number {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: white;
}

.flow-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.flow-content p {
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Campaign Section
   ======================================== */
.campaign {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.campaign-content {
    text-align: center;
    color: white;
}

.campaign-badge {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.campaign-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.campaign-subtitle {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 24px;
}

.campaign-offer {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
}

.offer-text {
    font-size: 18px;
    margin-bottom: 8px;
}

.offer-price {
    font-size: 20px;
    margin-bottom: 16px;
}

.price-highlight {
    font-size: 40px;
    font-weight: 700;
}

.offer-bonus {
    background: var(--accent-color);
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.offer-bonus i {
    margin-right: 8px;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    padding: 60px 0;
    background: var(--bg-white);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(0, 0, 0, 0.02);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 20px 20px;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ========================================
   CTA Final Section
   ======================================== */
.cta-final {
    padding: 80px 0;
    background: linear-gradient(135deg, #FFF5EB 0%, #E8F4FD 100%);
}

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

.cta-content h2 {
    font-size: 28px;
    margin-bottom: 16px;
    line-height: 1.5;
}

.cta-content > p {
    color: var(--text-light);
    margin-bottom: 32px;
}

.cta-note {
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-note i {
    color: var(--primary-color);
    margin-right: 4px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 40px 0;
    background: var(--text-color);
    color: white;
}

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

.footer-logo {
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 50px;
    width: auto;
}

.footer .logo-text {
    color: white;
}

.footer .logo-sub {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

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

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   Responsive - Tablet
   ======================================== */
@media (min-width: 768px) {
    .sp-only {
        display: none;
    }

    .section-title {
        font-size: 36px;
    }

    /* Header */
    .menu-toggle {
        display: none;
    }

    .nav {
        display: block;
        position: static;
        background: none;
        box-shadow: none;
    }

    .nav-list {
        flex-direction: row;
        padding: 0;
        gap: 32px;
    }

    /* Hero */
    .hero {
        padding: 140px 0 100px;
        min-height: 85vh;
    }

    .hero-content {
        text-align: left;
        margin: 0;
        padding: 56px 48px;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-subtitle {
        font-size: 22px;
    }

    .hero-badges {
        justify-content: flex-start;
    }

    /* Problems */
    .problems-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Features */
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Lessons */
    .lessons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* Pricing */
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        align-items: start;
    }

    /* Testimonials */
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Flow */
    .flow-steps {
        flex-direction: row;
        justify-content: space-between;
    }

    .flow-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
        flex: 1;
    }

    /* Campaign */
    .campaign-title {
        font-size: 36px;
    }

    .campaign-offer {
        max-width: 500px;
        margin: 0 auto;
    }

    /* CTA */
    .cta-content h2 {
        font-size: 36px;
    }
}

/* ========================================
   Responsive - Desktop
   ======================================== */
@media (min-width: 1024px) {
    .container {
        padding: 0 40px;
    }

    .hero {
        background-position: center center;
    }

    .hero-content {
        max-width: 550px;
        padding: 64px 56px;
    }

    .hero-title {
        font-size: 52px;
    }

    .feature-card {
        padding: 40px 32px;
    }

    .pricing-card.popular {
        transform: scale(1.05);
    }
}