/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    padding: 6rem 0;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 3vw, 1.25rem);
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* How It Works Section */
.how-it-works {
    padding: clamp(3rem, 8vw, 6rem) 0;
    background-color: var(--light-background);
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: clamp(2rem, 5vw, 3rem);
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.step {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: clamp(32px, 5vw, 40px);
    height: clamp(32px, 5vw, 40px);
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

/* Target Groups Section */
.target-groups {
    padding: clamp(3rem, 8vw, 6rem) 0;
}

.target-groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: clamp(1.5rem, 3vw, 2rem);
}

.target-group {
    padding: clamp(1.5rem, 3vw, 2rem);
    background: var(--light-background);
    border-radius: 0.5rem;
    text-align: center;
}

.card-description {
    font-size: clamp(0.95rem, 2vw, 1rem);
    line-height: 1.6;
}

/* Participation Model Section */
.participation-models {
    padding: clamp(3rem, 8vw, 6rem) 0;
    background-color: var(--light-background);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.model-card {
    background: var(--card-background);
    border-radius: 1.5rem;
    padding: 2.5rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(13, 148, 136, 0.1), 0 10px 10px -5px rgba(13, 148, 136, 0.04);
}

.model-card:hover::before {
    opacity: 1;
}

.model-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(to bottom, var(--card-background), var(--light-background));
}

.model-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: var(--light-background);
    width: 80px;
    height: 80px;
    line-height: 80px;
    text-align: center;
    border-radius: 50%;
    box-shadow: 0 4px 6px -1px rgba(13, 148, 136, 0.1);
}

.featured-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 4px 6px -1px rgba(13, 148, 136, 0.2);
}

/* Percentage Bar */
.percentage-bar {
    display: flex;
    height: 2.5rem;
    border-radius: 1.25rem;
    overflow: hidden;
    margin: 2rem 0;
    box-shadow: 0 4px 6px -1px rgba(13, 148, 136, 0.1);
}

.bar-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 60px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.bar-segment::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.bar-segment:hover::after {
    transform: translateX(100%);
}

.bar-segment.founder { 
    background: var(--primary-color);
    width: 65%;
}
.bar-segment.it { 
    background: var(--secondary-color);
    width: 40%;
}
.bar-segment.marketing { 
    background: var(--accent-color);
    width: 40%;
}
.bar-segment.seoday { 
    background: var(--primary-dark);
    width: 10%;
    min-width: 60px;
    font-size: 0.75rem;
    padding: 0 0.5rem;
}
.bar-segment.partner { 
    background: var(--secondary-color);
    width: 25%;
}
.bar-segment.pool { 
    background: var(--accent-color);
    width: 10%;
}

.percentage-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.percentage-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.percentage-list li strong {
    font-size: 0.875rem;
    color: var(--text-color);
}

.percentage-list li:hover {
    background: var(--light-background);
    padding-left: 1rem;
    border-radius: 0.5rem;
}

.percentage-list li:last-child {
    border-bottom: none;
}

.percentage {
    font-weight: 600;
    color: var(--primary-color);
    background: var(--light-background);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
}

/* Note Section */
.model-note {
    position: relative;
    padding: 3rem;
    background: var(--light-background);
    border-radius: 1.5rem;
    margin-top: 4rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.note-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: var(--card-background);
    width: 80px;
    height: 80px;
    line-height: 80px;
    text-align: center;
    border-radius: 50%;
    box-shadow: 0 4px 6px -1px rgba(13, 148, 136, 0.1);
}

.model-note h3 {
    color: var(--headline-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.model-note p {
    color: var(--text-light);
    font-size: 1.125rem;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    opacity: 0.1;
}

.cta-content {
    position: relative;
    padding: 4rem 0;
    text-align: center;
    z-index: 1;
}

.cta-content h2 {
    color: var(--text-white);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

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

.btn {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}


.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 1.25rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-cta,
    .cta-buttons,
    .model-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn,
    .cta-buttons .btn,
    .model-cta .btn {
        width: 100%;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .step,
    .target-group,
    .model-card {
        padding: 1.5rem;
    }

    .model-icon {
        font-size: 2.5rem;
        width: 60px;
        height: 60px;
        line-height: 60px;
    }

    .featured-badge {
        top: 1rem;
        right: 1rem;
        padding: 0.35rem 1rem;
        font-size: 0.75rem;
    }
    
    .percentage-bar {
        height: 1.75rem;
        margin: 1.5rem 0;
    }
    
    .bar-segment {
        font-size: 0.7rem;
        min-width: 45px;
    }

    .percentage-list li {
        padding: 0.5rem 0;
        font-size: 0.8rem;
    }

    .percentage {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }

    .model-note {
        padding: 2rem 1.5rem;
        margin-top: 2rem;
    }

    .note-icon {
        font-size: 2rem;
        width: 60px;
        height: 60px;
        line-height: 60px;
    }

    .model-note h3 {
        font-size: 1.25rem;
    }

    .model-note p {
        font-size: 0.9rem;
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .step,
    .target-group,
    .model-card {
        padding: 1.25rem;
    }
    
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }

    .models-grid {
        gap: 1.5rem;
    }

    .percentage-bar {
        height: 1.5rem;
    }

    .bar-segment {
        font-size: 0.65rem;
        min-width: 40px;
    }

    .percentage-list li {
        font-size: 0.75rem;
    }

    .percentage {
        font-size: 0.65rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .step:hover,
    .target-group:hover,
    .model-card:hover {
        transform: none;
    }
}