:root {
    --color-bg: #FFFFFF;
    --color-bg-alt: #F6F7FB;
    --color-primary: #6B7FD7;
    --color-dark: #2E3478;
    --color-text: #374151;
    --color-text-light: #6B7280;
    --color-border: #E4E7F1;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

/* Hero Section */
.hero {
    background-image:
        linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.4)),
        url('images/bikes.jpg');
    background-size: cover;
    background-position: center 40%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding: 200px 32px;
    text-align: center;
    position: relative;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.2) 100%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: white;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.375rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    max-width: 700px;
    margin: 0 auto 40px;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.0625rem;
    transition: background-color 0.2s ease;
}

.cta-button:hover {
    background-color: var(--color-dark);
}

/* Section */
section {
    padding: 100px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 80px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 40px 32px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    aspect-ratio: 4 / 3;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: all 0.3s ease;
    position: relative;
    background-size: cover;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.6) 100%);
    transition: background 0.3s ease;
}

.feature-card:hover::before {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.55) 100%);
}

.feature-card h3,
.feature-card p {
    position: relative;
    z-index: 1;
    color: white;
}

.feature-card h3 {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.feature-card p {
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.feature-card:nth-child(1) {
    background-image: url('images/birdseye.jpg');
    background-position: center 45%;
}

.feature-card:nth-child(2) {
    background-image: url('images/redlight.jpg');
    background-position: center center;
}

.feature-card:nth-child(3) {
    background-image: url('images/pedestrians.jpg');
    background-position: center 60%;
}

.feature-card:nth-child(4) {
    background-image: url('images/skyscrapers.jpg');
    background-position: center 40%;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(46, 52, 120, 0.12);
    border-color: var(--color-primary);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-bg-alt);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 20px;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: rgba(246, 247, 251, 0.98);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.feature-card p {
    color: rgba(246, 247, 251, 0.95);
    line-height: 1.7;
    font-size: 1.0625rem;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1000px;
    margin: 0 auto;
}

.column h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 32px;
}

.column ul {
    list-style: none;
}

.column ul li {
    padding: 20px 0;
    color: var(--color-text);
    line-height: 1.7;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-border);
}

.column ul li:last-child {
    border-bottom: none;
}

.column ul li strong {
    color: var(--color-dark);
    font-weight: 600;
}

/* Process Steps */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background-color: var(--color-bg-alt);
    color: var(--color-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.process-step h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.process-step p {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* Alpha Notice */
.alpha-notice {
    background-color: var(--color-bg-alt);
    padding: 56px 48px;
    border-radius: 8px;
    max-width: 900px;
    margin: 0 auto;
    border-left: 3px solid var(--color-primary);
}

.alpha-badge {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.alpha-notice h3 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.alpha-notice p {
    color: var(--color-text);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* Municipalities Section */
.municipalities-section {
    padding: 30px 0;
    background-color: var(--color-bg);
}

.municipalities-label {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.municipalities-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.municipality-card {
    background: white;
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--color-border);
    width: 180px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.2s ease;
}

.municipality-card:hover {
    box-shadow: 0 4px 12px rgba(46, 52, 120, 0.08);
}

.municipality-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Alpha Collaboration Section */
.alpha-collaboration {
    padding: 48px 32px;
    background-color: var(--color-primary);
    border-top: 1px solid rgba(46, 52, 120, 0.1);
    border-bottom: 1px solid rgba(46, 52, 120, 0.1);
}

.collaboration-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.alpha-badge-small {
    display: inline-block;
    background-color: var(--color-dark);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.collaboration-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.collaboration-content p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    padding: 32px 0;
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.faq-answer {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* CTA Section */
.cta-section {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

/* Footer */
footer {
    text-align: center;
    padding: 48px 32px;
    color: var(--color-text-light);
    font-size: 0.9375rem;
    border-top: 1px solid var(--color-border);
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 100px 24px;
        min-height: 500px;
        background-attachment: scroll;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    section {
        padding: 80px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .two-column {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .alpha-notice {
        padding: 40px 32px;
    }

    .municipalities-section {
        padding: 24px 0;
    }

    .municipality-card {
        width: 160px;
        height: 110px;
        padding: 10px;
    }

    .alpha-collaboration {
        padding: 40px 24px;
    }

    .collaboration-content h2 {
        font-size: 1.5rem;
    }

    .collaboration-content p {
        font-size: 1rem;
    }

    .container {
        padding: 0 24px;
    }
}