:root {
    --background-color: #f7f4ee;
    --surface-color: #fff8ef;
    --text-color: #1f1f1f;
    --muted-color: #4a4a4a;
    --accent-color: #ff7f50;
    --accent-contrast: #ffffff;
    --chip-bg: #ffffff;
    --shadow-color: rgba(18, 18, 18, 0.18);
    --soft-shadow-color: rgba(18, 18, 18, 0.08);
    --font-family: 'Helvetica Neue', sans-serif;
}

:root[data-theme="dark"] {
    --background-color: #0f1216;
    --surface-color: #1c2128;
    --text-color: #f2f5f7;
    --muted-color: #c1c7ce;
    --accent-color: #ff9d5c;
    --accent-contrast: #1b0d05;
    --chip-bg: #11151a;
    --shadow-color: rgba(0, 0, 0, 0.55);
    --soft-shadow-color: rgba(0, 0, 0, 0.35);
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background-color: var(--background-color);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(255, 184, 112, 0.25), transparent 45%),
        radial-gradient(circle at 90% 15%, rgba(255, 127, 80, 0.18), transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(255, 221, 138, 0.22), transparent 45%),
        linear-gradient(130deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0.2));
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-color);
}

.container {
    background-color: var(--surface-color);
    padding: 40px;
    border-radius: 22px;
    box-shadow: 0 16px 30px var(--shadow-color), 0 8px 12px var(--soft-shadow-color);
    max-width: 640px;
    width: min(90vw, 640px);
}

h1 {
    font-size: 2.6em;
    margin: 6px 0 8px;
    text-align: left;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-size: 0.7em;
    color: var(--muted-color);
    margin: 0;
}

.subtitle {
    margin: 0;
    color: var(--muted-color);
    font-size: 1em;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 30px;
}

.menu-sets {
    display: grid;
    gap: 18px;
    margin-bottom: 30px;
}

.menu-card {
    display: grid;
    gap: 8px;
    background-color: var(--chip-bg);
    border-radius: 18px;
    padding: 18px 20px;
    box-shadow: 0 10px 18px var(--soft-shadow-color);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.menu-title {
    font-size: 1.4em;
    font-weight: 700;
    margin: 0;
}

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

.menu-tag {
    font-size: 0.85em;
    padding: 4px 10px;
    border-radius: 999px;
    background-color: rgba(0, 0, 0, 0.06);
}

#generate-btn {
    background-color: var(--accent-color);
    color: var(--accent-contrast);
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 10px var(--soft-shadow-color);
    width: 100%;
}

#generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 18px var(--shadow-color);
}

#generate-btn:active {
    transform: translateY(0);
    box-shadow: 0 6px 10px var(--soft-shadow-color);
}

.theme-toggle {
    border: 1px solid rgba(0, 0, 0, 0.08);
    background-color: transparent;
    color: var(--text-color);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 0.95em;
    cursor: pointer;
    transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.theme-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.18);
    transform: translateY(-1px);
}

:root[data-theme="dark"] .theme-toggle {
    border-color: rgba(255, 255, 255, 0.2);
}

:root[data-theme="dark"] .theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }

    .menu-card {
        padding: 16px;
    }

    #generate-btn {
        padding: 12px 24px;
        font-size: 1em;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }
}