:root {
    --background: #000000;
    --foreground: #f5f5f5;
    --muted: #a0a0a0;
    --border: #1a1a1a;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: var(--font-family);
    line-height: 1.5;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 4rem 1.5rem;
}

.container {
    max-width: 650px;
    width: 100%;
}

header {
    margin-bottom: 4rem;
}

.logo {
    width: 32px;
    height: 32px;
    margin-bottom: 2rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

section {
    margin-bottom: 3rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    color: var(--foreground);
}

strong {
    font-weight: 600;
}

.mention {
    color: var(--muted);
}

ol {
    margin-left: 1.25rem;
    margin-bottom: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.socials p {
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.export-data {
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 4px;
}

#login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

#login-form input {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
    padding: 0.75rem;
    font-size: 0.9rem;
    border-radius: 4px;
}

#login-form button, .oauth-btn, .export-buttons button {
    background: var(--foreground);
    color: var(--background);
    border: none;
    padding: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    transition: opacity 0.1s;
}

.oauth-buttons {
    display: flex;
    gap: 0.5rem;
}

.oauth-btn {
    flex: 1;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
}

.export-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 1rem;
}

#export-all {
    grid-column: span 2;
}

.export-note {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--muted);
    font-style: italic;
    line-height: 1.4;
}

#logout-btn {
    grid-column: span 2;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
}

#status-message {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--muted);
}

a {
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: color 0.1s;
}

a:hover {
    color: var(--foreground);
    border-bottom-color: var(--foreground);
}

footer {
    margin-top: 6rem;
    border-top: 1px solid var(--border);
    padding-top: 2rem;
}

.rip {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0.05em;
    text-align: center;
}

@media (max-width: 640px) {
    body {
        padding: 2rem 1rem;
    }
}