/* ===== Global Styles ===== */
:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --text: #374151;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --white: #ffffff;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--secondary);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    text-align: center;
}

.hero .tagline {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--secondary);
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-subtitle {
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 1.25rem;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Stats Section ===== */
.stats {
    padding: 60px 0;
    background: var(--secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Section Styles ===== */
.section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 16px;
}

.section-intro {
    max-width: 700px;
    margin: 0 auto 48px;
    color: var(--text-light);
    font-size: 1.125rem;
}

/* ===== Problem Section ===== */
.problem {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.problem-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: left;
}

.problem-card h4 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-bottom: 16px;
}

.problem-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.problem-stat {
    display: inline-block;
    background: #fef2f2;
    color: #dc2626;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
}

/* ===== Solution Section ===== */
.solution {
    padding: 100px 0;
    text-align: center;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.solution-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 16px;
    border: 2px solid var(--border);
    text-align: left;
    transition: all 0.3s;
}

.solution-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.solution-number {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: 20px;
}

.solution-card h4 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-bottom: 12px;
}

.solution-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.solution-badge {
    display: inline-block;
    background: #ecfdf5;
    color: #059669;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
}

/* ===== Models Section ===== */
.models {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.model-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.model-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.model-card.featured {
    border: 3px solid var(--primary);
}

.model-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.model-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.model-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.model-badge.premium {
    background: var(--accent);
}

.model-content {
    padding: 28px;
    text-align: left;
}

.model-content h4 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 4px;
}

.model-tagline {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.model-specs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.model-specs span {
    background: var(--bg-light);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
}

.model-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.model-features span {
    color: var(--text-light);
    font-size: 0.875rem;
}

.model-features span::before {
    content: "•";
    margin-right: 4px;
    color: var(--primary);
}

.model-pricing {
    background: var(--bg-light);
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.price-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.price-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

.price-note {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 4px;
}

.models-note {
    color: var(--text-light);
    margin-bottom: 24px;
}

/* ===== Process Section ===== */
.process {
    padding: 100px 0;
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    margin-top: 60px;
}

.step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 24px;
}

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

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

/* ===== Vision Section ===== */
.vision {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary) 0%, #1e3a5f 100%);
    color: var(--white);
    text-align: center;
}

.vision .section-title {
    color: var(--accent);
}

.vision .section-subtitle {
    color: var(--white);
}

.vision-text {
    max-width: 800px;
    margin: 0 auto 24px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
}

.vision-quote {
    max-width: 700px;
    margin: 48px auto 0;
    padding: 32px;
    background: rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--accent);
    font-size: 1.25rem;
    font-style: italic;
    text-align: left;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.contact-intro {
    max-width: 600px;
    margin: 0 auto 48px;
    color: var(--text-light);
    font-size: 1.125rem;
}

.contact-methods {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 20px 32px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.contact-method:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-method.whatsapp:hover {
    background: #25D366;
    color: var(--white);
}

.contact-method.email:hover {
    background: var(--primary);
    color: var(--white);
}

.contact-method.phone:hover {
    background: var(--secondary);
    color: var(--white);
}

.contact-icon {
    font-size: 1.5rem;
}

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

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-top: 4px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-methods {
        flex-direction: column;
        align-items: stretch;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}