:root {
    --bg: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text: #c9d1d9;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --border: #30363d;
    --code-bg: #1f2428;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
}

.logo img {
    height: 32px;
}

.logo span {
    font-weight: 600;
    font-size: 1.1rem;
}

.logo .badge {
    background: var(--accent);
    color: var(--bg);
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
}

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

/* Hero */
.hero {
    text-align: center;
    padding: 6rem 0 4rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--text);
}

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

.hero-logo {
    height: 2.5rem;
    vertical-align: middle;
    margin-left: 0.25rem;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin: 0 0 3rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Coming Soon Badge */
.coming-soon-badge {
    display: inline-block;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-bottom: 2rem;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 3rem 0;
}

@media (max-width: 600px) {
    .features {
        grid-template-columns: 1fr;
    }
}

.feature {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
}

.feature h3 {
    color: var(--text);
    font-size: 1rem;
    margin: 0 0 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature h3 .icon {
    color: var(--accent);
}

.feature p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* Tech Stack */
.tech-stack {
    text-align: center;
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.tech-stack h2 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 0 0 1rem;
    font-weight: 500;
}

.tech-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.tech-logos span {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Signup Form */
.signup {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
    margin: 3rem 0;
}

.signup h2 {
    font-size: 1.25rem;
    margin: 0 0 0.5rem;
    color: var(--text);
}

.signup p {
    color: var(--text-muted);
    margin: 0 0 1.5rem;
    font-size: 0.95rem;
}

.signup form {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.signup input[type="email"] {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: var(--text);
    width: 280px;
    max-width: 100%;
}

.signup input[type="email"]::placeholder {
    color: var(--text-muted);
}

.signup input[type="email"]:focus {
    outline: none;
    border-color: var(--accent);
}

.signup button {
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.signup button:hover {
    background: var(--accent-hover);
}

#thank-you {
    color: var(--accent);
    font-size: 1rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
}

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

.footer .copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Code blocks */
code {
    background: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.85em;
}

pre {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
}

pre code {
    background: none;
    padding: 0;
}

/* Preview ribbon */
.preview-ribbon {
    position: fixed;
    top: 25px;
    left: -40px;
    background: var(--accent);
    color: var(--bg);
    padding: 0.4rem 3rem;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transform: rotate(-45deg);
    z-index: 1050;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    font-family: system-ui, sans-serif;
}

/* Utility */
.text-muted {
    color: var(--text-muted);
}

.text-accent {
    color: var(--accent);
}