/* Modern, Clean, Professional Styles */
:root {
    --primary: #0a66c2;
    --primary-dark: #004182;
    --secondary: #34a853;
    --text-dark: #202124;
    --text-light: #5f6368;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --border: #e0e0e0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 1px 0 var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.2;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 20px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s, transform 0.1s;
    box-shadow: 0 4px 14px rgba(10, 102, 194, 0.3);
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

/* Features */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 30px;
    border-radius: 12px;
    background: var(--white);
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.icon {
    font-size: 32px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 12px;
    background: #eef3fc;
    border-radius: 12px;
    color: var(--primary);
}

.feature-card h3 {
    margin-bottom: 10px;
    font-size: 20px;
}

/* Tracking Section */
.tracking-section {
    background-color: var(--bg-light);
    padding: 80px 0;
    text-align: center;
}

.sheets-badge {
    background-color: #e6f4ea;
    color: #137333;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 15px;
}

/* Simple Footer */
footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--primary);
    text-decoration: underline;
}

/* Content Pages (Privacy/Terms) */
.content-page {
    padding: 60px 0;
    max-width: 800px;
}

.content-page h1 {
    font-size: 36px;
    margin-bottom: 40px;
}

.content-page h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.content-page p, .content-page li {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 15px;
}

/* Steps for How it Works */
.step-card {
    display: flex;
    gap: 30px;
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
    border: 1px solid var(--border);
    align-items: flex-start;
}

.step-number {
    background-color: var(--primary);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-card h2 {
    margin-top: 0;
    font-size: 24px;
    color: var(--text-dark);
}

.nav-links a.active {
    color: var(--primary);
    font-weight: 700;
}