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

:root {
    --font-heading: "Rethink Sans", system-ui, sans-serif;
    --font-body: "DM Sans", system-ui, sans-serif;
    --color-ink: #1a1a1a;
    --color-ink-secondary: #6b6b6b;
    --color-ground: #fafafa;
    --color-rule: #e0e0e0;
    --color-accent: #A0522D;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-ink: #e8e8e8;
        --color-ink-secondary: #888888;
        --color-ground: #141414;
        --color-rule: #2a2a2a;
    }
}

[data-theme="dark"] {
    --color-ink: #e8e8e8;
    --color-ink-secondary: #888888;
    --color-ground: #141414;
    --color-rule: #2a2a2a;
}

html { font-size: 16px; }

body {
    font-family: var(--font-body);
    background: var(--color-ground);
    color: var(--color-ink);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    -webkit-font-smoothing: antialiased;
}

.page {
    width: 100%;
    max-width: 480px;
}

header {
    margin-bottom: 4rem;
}

h1 {
    font-family: var(--font-heading);
    font-weight: 400;
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.subtitle {
    font-family: var(--font-heading);
    font-weight: 400;
    font-size: 0.8125rem;
    color: var(--color-ink-secondary);
    margin-top: 0.5rem;
}

.tool-list {
    list-style: none;
}

.tool-item {
    border-top: 1px solid var(--color-rule);
}

.tool-item:last-child {
    border-bottom: 1px solid var(--color-rule);
}

.tool-link {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 0;
    min-height: 44px;
    text-decoration: none;
    color: inherit;
    transition: padding-left 0.2s ease;
}

.tool-link:hover {
    padding-left: 0.5rem;
    color: var(--color-accent);
}

.tool-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.tool-desc {
    font-size: 0.8125rem;
    color: var(--color-ink-secondary);
    text-align: right;
    max-width: 55%;
    line-height: 1.4;
}

.auth-links {
    margin-top: 3rem;
    padding-top: 1.5rem;
    font-size: 0.8125rem;
    color: var(--color-ink-secondary);
}

.auth-links a {
    color: var(--color-ink);
    text-decoration: none;
    border-bottom: 1px solid var(--color-rule);
    transition: border-color 0.15s ease;
}

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

.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    font-size: 1.125rem;
    cursor: pointer;
    color: var(--color-ink-secondary);
    padding: 0;
    min-height: 44px;
    min-width: 44px;
    line-height: 1;
    transition: color 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--color-ink);
}