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

:root {
    --pink-primary: #FFB6C1;
    --pink-light: #FFE4E9;
    --pink-dark: #FF91A4;
    --white: #FFFFFF;
    --text-dark: #2C2C2C;
    --text-medium: #5A5A5A;
    --spacing-xs: 16px;
    --spacing-sm: 24px;
    --spacing-md: 40px;
    --spacing-lg: 60px;
    --spacing-xl: 80px;
    --spacing-xxl: 120px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--white);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header */
.header {
    padding: var(--spacing-sm) 0;
    background: var(--white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 600;
    color: var(--pink-primary);
    letter-spacing: -0.5px;
}

.header-btn,
.hero-btn,
.join-btn {
    background: var(--pink-primary);
    color: var(--white);
    border: none;
    padding: 14px 28px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.header-btn:hover,
.hero-btn:hover,
.join-btn:hover {
    background: var(--pink-dark);
    transform: translateY(-2px);
}

/* Hero */
.hero {
    padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(180deg, #FEFCF9 0%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 182, 193, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
}

.hero-headline {
    font-size: clamp(36px, 8vw, 64px);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    letter-spacing: -1.5px;
}

.hero-subtext {
    font-size: clamp(18px, 3vw, 24px);
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    max-width: 800px;
}

.hero-btn {
    font-size: 18px;
    padding: 18px 40px;
    margin-bottom: var(--spacing-xl);
}

.hero-image-container {
    width: 100%;
    border-radius: 24px;
    margin-top: var(--spacing-lg);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 24px;
    display: block;
}

/* Problem */
.problem {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: var(--pink-light);
}

.problem-visual {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
}

.problem-illustration {
    width: 200px;
    height: 200px;
    opacity: 0.8;
}

.problem-headline {
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    letter-spacing: -1px;
    text-align: center;
}

.problem-lines {
    margin-bottom: var(--spacing-md);
}

.problem-line {
    font-size: clamp(20px, 3vw, 24px);
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    text-align: center;
}

.problem-subtext {
    font-size: clamp(18px, 2.5vw, 22px);
    color: var(--text-medium);
    line-height: 1.7;
    text-align: center;
}

/* Reassurance */
.reassurance {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: linear-gradient(180deg, #FFFFFF 0%, #FEFCF9 100%);
}

.reassurance-lines {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.reassurance-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
}

.reassurance-item svg {
    flex-shrink: 0;
    color: #4A90E2;
}

.reassurance-line {
    font-size: clamp(18px, 2.5vw, 22px);
    color: var(--text-dark);
    font-weight: 500;
    margin: 0;
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: linear-gradient(180deg, #FEFCF9 0%, #FFFFFF 100%);
}

.section-headline {
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    letter-spacing: -1px;
    text-align: center;
}

.steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-svg {
    width: 100%;
    height: 100%;
}

.step-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow-svg {
    width: 100%;
    height: 100%;
}

.step-text {
    font-size: clamp(16px, 2vw, 18px);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Testimonials */
.testimonials {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: linear-gradient(180deg, #FFFFFF 0%, #FEFCF9 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.testimonial-text {
    font-size: clamp(16px, 2vw, 18px);
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.testimonial-author {
    font-size: clamp(14px, 1.5vw, 16px);
    color: var(--text-medium);
    font-weight: 500;
    margin: 0;
}

.value-line {
    font-size: clamp(20px, 3vw, 28px);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    text-align: center;
}

.value-line:last-child {
    margin-bottom: 0;
}

.research-tagline {
    margin-top: var(--spacing-lg);
    text-align: center;
}

/* Stability Trend */
.stability-trend {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: var(--pink-light);
}

.stability-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    max-width: 1000px;
    margin: 0 auto;
}

.stability-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 280px;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.stability-step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--pink-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.stability-step-title {
    font-size: clamp(20px, 3vw, 24px);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
}

.stability-step-description {
    font-size: clamp(15px, 2vw, 17px);
    color: var(--text-medium);
    line-height: 1.6;
    margin: 0 0 var(--spacing-sm) 0;
}

.stability-step-icon {
    width: 80px;
    height: 80px;
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stability-step-icon .step-svg {
    width: 100%;
    height: 100%;
}

.stability-step-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Research */
.research {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: var(--pink-light);
}

.research-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.research-badge {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.research-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-svg {
    width: 100%;
    height: 100%;
}

.research-line {
    font-size: clamp(16px, 2vw, 18px);
    color: var(--text-medium);
    line-height: 1.7;
    margin: 0;
}

/* Join Section */
.join-section {
    padding: var(--spacing-xxl) var(--spacing-sm);
    background: linear-gradient(180deg, #FFFFFF 0%, #FEFCF9 100%);
    text-align: center;
}

.join-image-container {
    width: 100%;
    border-radius: 24px;
    margin: var(--spacing-lg) auto;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
    max-width: 1200px;
}

.join-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 24px;
    display: block;
}

.join-btn {
    padding: 18px 48px;
    font-size: 18px;
    margin: var(--spacing-md) auto;
    display: block;
    max-width: 300px;
}

.join-note {
    text-align: center;
    font-size: 14px;
    color: var(--text-medium);
    margin-top: var(--spacing-sm);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
    background: var(--white);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-brand {
    font-size: 24px;
    font-weight: 600;
    color: var(--pink-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 18px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.footer-copyright {
    font-size: 14px;
    color: var(--text-medium);
}

/* Mobile First - Base styles are mobile */
@media (min-width: 768px) {
    .hero {
        padding: var(--spacing-xxl) var(--spacing-sm) var(--spacing-xl);
    }

    .reassurance-lines {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-lg);
        flex-wrap: wrap;
    }

    .steps {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .step-arrow {
        display: flex;
    }

    .stability-steps {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .stability-step-arrow {
        display: flex;
    }

    .research-badges {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .hero-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
        align-items: center;
    }

    .hero-image-container {
        margin-top: 0;
    }

    .steps {
        flex-direction: row;
        flex-wrap: nowrap;
    }

    .stability-steps {
        flex-direction: row;
        flex-wrap: nowrap;
    }

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

@media (max-width: 767px) {
    .step-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .stability-step-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }
}