/* CSS Variables */
:root {
    --color-primary: #0D9488;
    --color-primary-light: #14B8A6;
    --color-primary-bg: #F0FDFA;
    --color-text: #1E293B;
    --color-text-muted: #64748B;
    --color-border: #E2E8F0;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8FAFC;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    --max-width: 1100px;
    --border-radius: 8px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

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

a:hover {
    color: var(--color-primary-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

/* Header */
.header {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--color-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text h1 {
    margin-bottom: var(--spacing-md);
}

.hero-subtext {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.cta-secondary {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.cta-secondary a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.cta-note {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    margin-top: var(--spacing-xs);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    width: 100%;
    max-width: 400px;
    height: auto;
}

/* Services Section */
.services {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: all 0.2s ease;
}

.service-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

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

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.service-examples {
    font-size: 0.8125rem !important;
    color: var(--color-primary) !important;
    margin-top: var(--spacing-sm);
    font-style: italic;
}

/* About Section */
.about {
    padding: var(--spacing-2xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-photo {
    flex-shrink: 0;
}

.avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 15%;
    transform: scale(1.3);
    border: 3px solid var(--color-border);
}

.about-text h2 {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    max-width: 550px;
}

.about-clients {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.clients-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.client-name {
    font-weight: 500;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.client-separator {
    color: var(--color-border);
}

/* Case Studies Section */
.case-studies {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-alt);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.case-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.case-client {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
}

.case-tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
}

.case-section {
    margin-bottom: var(--spacing-sm);
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.case-content p {
    font-size: 0.9375rem;
    color: var(--color-text);
    margin: 0;
}

.case-result {
    color: var(--color-primary) !important;
    font-weight: 500;
}

/* How It Works Section */
.how-it-works {
    padding: var(--spacing-2xl) 0;
}

.steps {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.step {
    flex: 1;
    max-width: 280px;
    text-align: center;
    padding: var(--spacing-md);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.step p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--color-border);
    margin-top: 38px;
    flex-shrink: 0;
}

/* Final CTA Section */
.final-cta {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-alt);
    text-align: center;
}

.final-cta .hero-cta {
    align-items: center;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
    text-align: center;
}

.footer-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-contact a {
    font-size: 1rem;
}

.footer-separator {
    color: var(--color-border);
}

.footer-legal {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
}

.footer-legal p {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    margin-bottom: 0.25rem;
}

.footer-legal p:last-child {
    margin-bottom: 0;
    margin-top: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 0;
        margin-bottom: var(--spacing-md);
    }

    .hero-illustration {
        max-width: 280px;
    }

    .hero-subtext {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        align-items: center;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-photo {
        display: flex;
        justify-content: center;
    }

    .avatar {
        width: 140px;
        height: 140px;
    }

    .about-text h2 {
        text-align: center;
    }

    .about-text p {
        margin-left: auto;
        margin-right: auto;
    }

    .about-clients {
        justify-content: center;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step-connector {
        width: 2px;
        height: 30px;
        margin: 0;
    }

    .footer-contact {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .footer-separator {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-2xl: 3rem;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .service-card {
        padding: var(--spacing-md);
    }
}