:root {
    --bg: #ffffff;
    --surface: #fcfcfc;
    --panel: #ffffff;
    --text: #0a0a0a;
    --text-soft: #525252;
    --text-faint: #a3a3a3;
    --border: rgba(0, 0, 0, 0.06);
    --border-strong: rgba(0, 0, 0, 0.12);
    --accent: #000000;
    --accent-contrast: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    --radius: 6px;
    --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --mono: "JetBrains Mono", "IBM Plex Mono", monospace;
}

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

body {
    font-family: var(--sans);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button, input {
    font: inherit;
}

/* Layout */
.landing-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* Header */
.header {
    height: 80px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.brand {
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    text-align: center;
}

.hero-eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-faint);
    margin-bottom: 16px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero p {
    font-size: 18px;
    color: var(--text-soft);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Query Section */
.query-section {
    padding: 40px 0 120px;
}

.query-card {
    background: var(--panel);
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow);
    max-width: 540px;
    margin: 0 auto;
}

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

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-soft);
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    transition: all 0.2s ease;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.04);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 24px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    width: 100%;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    background: var(--surface);
    border-color: var(--text);
}

.divider {
    display: flex;
    align-items: center;
    margin: 32px 0;
    color: var(--text-faint);
    font-size: 12px;
    font-family: var(--mono);
    text-transform: uppercase;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

.divider span {
    padding: 0 16px;
}

/* Footer */
.footer {
    margin-top: auto;
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-faint);
    font-size: 13px;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 40px;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .query-card {
        padding: 24px;
    }
}