:root {
    --primary: #1000BE;
    --primary-hover: #0c0099;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --bg-color: #ffffff;
    --dot-color: #e5e7eb;
    --red-flag: #D32F2F;
    --green-flag: #388E3C;
    --card-bg: #F9F9F9;
    --border-color: #eaeaea;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-color);
    background-image: radial-gradient(var(--dot-color) 1.5px, transparent 1.5px);
    background-size: 24px 24px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

.logo {
    font-family: 'Instrument Serif', serif;
    font-style: italic;
    font-weight: 400;
    color: var(--primary);
    font-size: 28px;
    text-decoration: none;
    letter-spacing: -0.5px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 15px;
}

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

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

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 10px;
}

/* Navbar */
.navbar {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

/* Hero Section */
.hero {
    padding: 80px 0 100px;
}

.hero-container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 56px;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
    color: #000;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
}

.hero-note {
    font-size: 13px;
    color: #888;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

/* Extension Mockup */
.extension-mockup {
    width: 340px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    font-size: 14px;
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px dashed var(--border-color);
}

.mockup-logo {
    font-family: 'Instrument Serif', serif;
    font-style: italic;
    font-weight: 400;
    color: var(--primary);
    font-size: 20px;
}

.mockup-url {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #f1f3f4;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 12px;
    color: #3c4043;
}

.mockup-body {
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.gauge-wrapper {
    margin-bottom: 16px;
}

.gauge {
    width: 160px;
    height: 80px;
    border-radius: 80px 80px 0 0;
    background: conic-gradient(from 270deg at 50% 100%, #C61A1A 0deg 45deg, #FF0000 45deg 90deg, #D4FF00 90deg 135deg, #B5D744 135deg 180deg);
    position: relative;
}

.gauge::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 110px;
    height: 55px;
    background: white;
    border-radius: 55px 55px 0 0;
}

.needle {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 4px;
    height: 70px;
    background: #333;
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(45deg);
    z-index: 2;
    border-radius: 4px;
}

.needle-base {
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 12px;
    height: 12px;
    background: #333;
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.mockup-title {
    font-size: 20px;
    margin-bottom: 8px;
    color: #000;
}

.mockup-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.5;
}

.mockup-date {
    font-size: 11px;
    color: #999;
    margin-bottom: 24px;
}

.flags-section {
    width: 100%;
    text-align: left;
    margin-bottom: 16px;
}

.flags-label {
    font-size: 10px;
    font-weight: 700;
    color: #888;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.flag-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 12px;
}

.flag-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: var(--red-flag); }
.dot.green { background: var(--green-flag); }

.flag-header h4 {
    font-size: 13px;
    color: #000;
}

.flag-card p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.mockup-footer {
    display: flex;
    justify-content: space-between;
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    font-size: 11px;
    color: #999;
    background: #fafafa;
}

.mockup-note {
    font-style: italic;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    letter-spacing: -0.5px;
}

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

.feature-card {
    padding: 32px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
}

/* How it works */
.how-it-works {
    padding: 80px 0;
}

.steps-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    flex: 1;
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.step p {
    color: var(--text-muted);
    font-size: 14px;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: var(--primary);
    color: white;
    text-align: center;
}

.cta-container h2 {
    font-size: 40px;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.cta-container p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

.cta-section .btn-primary:hover {
    background: #f0f0f0;
}

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

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 20px;
    margin-bottom: 4px;
    display: block;
}

.footer-left p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-actions {
        align-items: center;
    }
    .hero-title {
        font-size: 40px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .steps-container {
        flex-direction: column;
    }
}