/* CSS Reset & Basic Settings */
:root {
    --primary-color: #ff4757;
    --primary-hover: #ff6b81;
    --secondary-color: #2f3542;
    --accent-color: #eccc68;
    --bg-color: #ffffff;
    --bg-light: #f1f2f6;
    --text-main: #2f3542;
    --text-light: #57606f;
    --white: #ffffff;
    --font-base: 'Inter', 'Noto Sans JP', sans-serif;
}

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

body {
    font-family: var(--font-base);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
    word-break: auto-phrase;
    overflow-wrap: break-word;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* Typography & Utilities */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.highlight {
    background: linear-gradient(transparent 60%, #ffeaa7 60%);
    padding: 0 4px;
    display: inline-block;
}

.highlight-text {
    color: var(--primary-color);
    font-size: 1.2em;
    font-weight: 900;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 800;
    line-height: 1.4;
}

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

section {
    padding: 5rem 0;
}

/* Visibility Utilities */
.pc-only { display: block; }
.sp-only { display: none; }

@media (max-width: 768px) {
    .pc-only { display: none; }
    .sp-only { display: block; }
}

/* Hero Section */
.hero {
    padding: 4rem 0 5rem;
    text-align: center;
    background: linear-gradient(135deg, #ffffff 0%, #f1f2f6 100%);
}

.hero-badge {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.hero-image-wrapper {
    margin: 0 auto 2.5rem;
    max-width: 800px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.hero-image-wrapper:hover {
    transform: translateY(-5px);
}

.hero-lead {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 600;
    margin: 0 auto 3rem;
    max-width: 650px;
    color: var(--text-light);
}

.hero-lead p {
    margin-bottom: 0.5rem;
}

.hero-lead p:last-child {
    margin-bottom: 0;
}

/* Buttons */
.cta-wrapper {
    text-align: center;
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 3rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.3rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(255, 71, 87, 0.3);
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #ff7f50);
    color: var(--white);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(255, 71, 87, 0.4);
}

.btn-sub {
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0.9;
    margin-bottom: 0.2rem;
}

.btn-arrow {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    transition: right 0.3s ease;
}

.btn:hover .btn-arrow {
    right: 15px;
}

/* Pulse Animation for CTA */
.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 71, 87, 0.6); }
    70% { box-shadow: 0 0 0 15px rgba(255, 71, 87, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 71, 87, 0); }
}

/* Story Section */
.story-content {
    background: var(--white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

.story-highlight {
    background: #fff4f4;
    border-left: 5px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    font-size: 1.3rem;
    color: var(--primary-color);
    border-radius: 0 8px 8px 0;
}

.story p {
    margin-bottom: 1.5rem;
}

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

/* Product Section */
.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-box {
    background: var(--white);
    padding: 2.5rem 1.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border: 1px solid #eaeaea;
    transition: transform 0.3s ease;
}

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

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

.feature-box h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    min-height: 3.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-box p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Offer Section */
.offer-header {
    text-align: center;
    margin-bottom: 3rem;
}

.offer-header p {
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 1rem;
    font-size: 1.1rem;
}

.offer-cards {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .offer-cards {
        flex-direction: row;
    }
}

.offer-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 20px;
    flex: 1;
    position: relative;
    border: 2px solid transparent;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.special-offer {
    border-color: var(--accent-color);
    background: linear-gradient(to bottom, #ffffff, #fffcf2);
}

.offer-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.5rem 2rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.1rem;
}

.special-offer .offer-badge {
    background: var(--accent-color);
    color: var(--secondary-color);
}

.offer-card h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    margin-top: 1rem;
}

.offer-image {
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 1px solid #eaeaea;
}

.offer-card p {
    color: var(--text-light);
}

.bottom-cta {
    margin-top: 4rem;
}

.cta-micro-copy {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Disclaimer Section */
.disclaimer {
    padding: 4rem 0 3rem;
}

.disclaimer-content {
    font-size: 0.85rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

.disclaimer-content p {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

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

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .btn {
        width: 100%;
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
    
    .story-content {
        padding: 2rem 1.5rem;
    }
}