/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-400: #a3a3a3;
    --gray-600: #525252;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--black);
    line-height: 1.7;
    background: var(--white);
    font-size: 16px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    font-weight: 500;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

p {
    color: var(--gray-600);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 0.95rem;
    border: 1px solid var(--black);
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--black);
}

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

.btn-nav {
    padding: 8px 20px;
    background: var(--black);
    color: var(--white);
    border: 1px solid var(--black);
}

.btn-nav:hover {
    background: var(--white);
    color: var(--black);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    max-width: 900px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    letter-spacing: -0.02em;
}

.logo-icon {
    display: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-600);
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 180px 0 120px;
    text-align: left;
}

.hero h1 {
    margin-bottom: 24px;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 480px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 12px;
}

/* About Section */
.about {
    padding: 100px 0;
    border-top: 1px solid var(--gray-200);
}

.about-content {
    max-width: 600px;
}

.about-content p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Services Section */
.services {
    padding: 100px 0;
    border-top: 1px solid var(--gray-200);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px 64px;
}

.service-card {
    padding: 0;
}

.service-icon {
    display: none;
}

.service-card h3 {
    color: var(--black);
}

.service-card p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Why Us Section */
.why-us {
    padding: 100px 0;
    border-top: 1px solid var(--gray-200);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px 64px;
}

.benefit {
    padding: 0;
}

.benefit h3 {
    color: var(--black);
}

.benefit p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    border-top: 1px solid var(--gray-200);
    background: var(--white);
}

.contact h2 {
    color: var(--black);
}

.contact-intro {
    max-width: 480px;
    margin-bottom: 48px;
    color: var(--gray-600);
}

.contact-form {
    max-width: 480px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--black);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 1px solid var(--gray-200);
    background: transparent;
    color: var(--black);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--black);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form .btn-primary {
    margin-top: 16px;
}

/* Footer */
footer {
    border-top: 1px solid var(--gray-200);
    padding: 48px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--black);
}

.footer-brand p {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--gray-400);
    margin-top: 8px;
}

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

.footer-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--black);
}

.footer-bottom {
    text-align: left;
    font-size: 0.85rem;
    color: var(--gray-400);
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .services-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }
}