:root {
    --bg-color: #fcfbf9;
    --text-color: #2c2a29;
    --heading-color: #1a1817;
    --muted-color: #6c6763;
    --accent-color: #5c4033;
    --accent-hover: #432e24;
    --card-bg: #f4f1ec;
    --border-color: #dcd6ce;
    --success-color: #2d5a27;
    --error-color: #8b0000;
    
    --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --max-width: 760px;
    --spacing-unit: 1.5rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #181716;
        --text-color: #e4e1de;
        --heading-color: #f7f5f2;
        --muted-color: #a8a29e;
        --accent-color: #a87b60;
        --accent-hover: #c49579;
        --card-bg: #23211f;
        --border-color: #3e3a36;
        --success-color: #6bb260;
        --error-color: #d9534f;
    }
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

.site-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    background-color: var(--bg-color);
}

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

.logo {
    font-weight: 700;
    color: var(--heading-color);
    text-decoration: none;
    font-size: 1.1rem;
}

.site-nav {
    display: flex;
    gap: 1.25rem;
}

.site-nav a, .footer-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.95rem;
}

.site-nav a:hover, .footer-nav a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.main-content {
    flex: 1;
    padding-top: 2.5rem;
    padding-bottom: 3rem;
}

h1 {
    font-size: 2rem;
    color: var(--heading-color);
    margin-bottom: 1rem;
    line-height: 1.25;
}

h2 {
    font-size: 1.4rem;
    color: var(--heading-color);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

h3 {
    font-size: 1.15rem;
    color: var(--heading-color);
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.1rem;
    color: var(--muted-color);
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

@media (min-width: 600px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 4px;
}

.newsletter-section {
    margin-top: 3rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 4px;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--heading-color);
}

input[type="email"] {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 44px;
}

input[type="email"]:focus {
    outline: 2px solid var(--accent-color);
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    min-height: 44px;
    line-height: normal;
}

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

.form-message {
    margin-top: 1rem;
    font-size: 0.95rem;
}

.form-message.success {
    color: var(--success-color);
}

.form-message.error {
    color: var(--error-color);
}

.news-item {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.news-date {
    font-size: 0.85rem;
    color: var(--muted-color);
    margin-bottom: 0.5rem;
}

.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    background-color: var(--bg-color);
    font-size: 0.9rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
}

@media (min-width: 600px) {
    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-nav {
    display: flex;
    gap: 1.25rem;
}

.text-center {
    text-align: center;
}

.diag-textarea {
    width: 100%;
    height: 150px;
    font-family: monospace;
    font-size: 0.85rem;
    padding: 0.75rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}