:root {
    color-scheme: light dark;
    --bg: #f3f0e7;
    --bg-accent: #f8e8c4;
    --surface: #ffffff;
    --surface-alt: #f5efe2;
    --text: #1b1b1b;
    --muted: #58514a;
    --brand: #b86b00;
    --brand-strong: #8f4d00;
    --border: #e1d7c8;
    --shadow: 0 12px 35px rgba(35, 28, 16, 0.12);
}

body.dark {
    color-scheme: dark;
    --bg: #1a1a2e;
    --bg-accent: #22223b;
    --surface: #162447;
    --surface-alt: #1f4068;
    --text: #e0e0e0;
    --muted: #b5b5c4;
    --brand: #fca311;
    --brand-strong: #e99400;
    --border: rgba(252, 163, 17, 0.5);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'Merriweather', serif;
    background:
        radial-gradient(circle at top, var(--bg-accent), transparent 55%),
        linear-gradient(120deg, var(--bg), #efe7d6 70%);
    color: var(--text);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 2rem 1rem;
}

#app {
    background-color: var(--surface);
    padding: 2rem;
    border-radius: 18px;
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 560px;
    width: 100%;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.mode-toggle {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background-color: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 700;
    transition: transform 0.2s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.mode-toggle:hover {
    transform: translateY(-2px);
}

h1 {
    color: var(--brand);
    font-family: 'Cinzel', serif;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

p {
    color: var(--muted);
}

.input-container {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

input,
select {
    flex-grow: 1;
    padding: 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: var(--surface-alt);
    color: var(--text);
    font-size: 1rem;
}

button {
    background-color: var(--brand);
    color: var(--surface);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s;
}

button:hover {
    background-color: var(--brand-strong);
    transform: translateY(-2px);
}

#fortune-container {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 8px;
    background-color: var(--surface-alt);
    border: 1px solid var(--border);
    transition: opacity 0.5s;
}

#fortune-container.hidden {
    display: none;
}

.fortune-tabs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
    margin: 1.5rem 0 1rem;
}

.tab-button {
    background-color: var(--surface-alt);
    color: var(--text);
    border: 1px solid var(--border);
    font-weight: 600;
}

.tab-button.active {
    background-color: var(--brand);
    color: var(--surface);
    border-color: transparent;
}

.fortune-section.hidden {
    display: none;
}

@media (max-width: 520px) {
    h1 {
        font-size: 2rem;
    }

    .mode-toggle {
        position: static;
        margin: 0 auto 1rem;
    }

    #app {
        padding: 1.5rem;
    }
}