* { box-sizing: border-box; }

:root {
    --wood: #8b5e3c;
    --wood_dark: #5c3d28;
    --paper: #f6f0e4;
    --paper_dark: #e8dcc8;
    --ink: #2f261f;
    --accent: #c45d2c;
    --accent_soft: #f0b07a;
    --green: #5f8f4f;
    --shadow: rgba(47, 38, 31, 0.15);
    --radius: 18px;
    --font_body: Georgia, "Times New Roman", serif;
    --font_ui: "Trebuchet MS", "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font_body);
    color: var(--ink);
    background:
        radial-gradient(circle at top left, #fff8ee 0%, transparent 40%),
        linear-gradient(180deg, var(--paper) 0%, var(--paper_dark) 100%);
    min-height: 100vh;
}

a { color: var(--wood_dark); }
a:hover { color: var(--accent); }

.site_header {
    background: var(--wood_dark);
    color: #fff;
    box-shadow: 0 4px 16px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 20;
}

.site_header_inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
}

.logo_link {
    color: #fff;
    text-decoration: none;
    font-family: var(--font_ui);
    font-size: 1.4rem;
    font-weight: 700;
}

.main_nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.main_nav a {
    color: #fff;
    text-decoration: none;
    font-family: var(--font_ui);
    font-size: 0.95rem;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.main_nav a:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.prefs_form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-family: var(--font_ui);
    font-size: 0.85rem;
}

.prefs_form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: #fff;
}

.prefs_form select {
    border: 0;
    border-radius: 8px;
    padding: 6px 8px;
    font-family: var(--font_ui);
}

.site_main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.site_footer {
    text-align: center;
    padding: 24px 16px 40px;
    font-family: var(--font_ui);
    font-size: 0.9rem;
    color: #6a5b4d;
}

.page_intro h1 {
    font-family: var(--font_ui);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin: 0 0 8px;
}

.page_intro p {
    font-size: 1.1rem;
    line-height: 1.5;
}

.back_link {
    font-family: var(--font_ui);
}

.empty_note {
    font-family: var(--font_ui);
    background: #fff;
    border: 2px dashed var(--wood);
    border-radius: var(--radius);
    padding: 16px;
}

.favorite_btn {
    border: 2px solid var(--accent);
    background: #fff;
    color: var(--accent);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 1rem;
    cursor: pointer;
    font-family: var(--font_ui);
}

.favorite_btn.is_active {
    background: var(--accent);
    color: #fff;
}

.favorite_btn.is_large {
    font-size: 1rem;
}

@media (max-width: 720px) {
    .site_header_inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .main_nav {
        width: 100%;
    }
}