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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* Header */
.main-header {
    height: 80px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -1px;
}

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

.main-nav ul {
    display: flex;
    gap: 30px;
    align-items: center;
}

.main-nav a {
    font-weight: 400;
    font-size: 0.95rem;
}

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

.btn-login {
    background: var(--text);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 6px;
}

.btn-login:hover {
    background: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-outline {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
}

.btn-outline:hover {
    background: var(--bg-alt);
}

/* Hero */
.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(to bottom, #ffffff, #f3f4f6);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: -2px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto 40px;
}

/* Services Section */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px;
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card .price {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
}

.service-card .description {
    color: var(--text-light);
    margin-bottom: 30px;
    min-height: 60px;
}

/* Features Section */
.features {
    background-color: var(--bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.feature-item h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Footer */
.main-footer {
    padding: 60px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
}