:root {
    --black: #1a1a1a;
    --white: #ffffff;
    --cream: #fefcf3;
    --blue: #1e3a8a;
    --blue-dark: #172554;
    --coral: #e05565;
    --border: 2px solid var(--black);
    --shadow: 3px 3px 0 var(--black);
    --radius: 4px;
}

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

body {
    font-family: 'Space Mono', monospace;
    background-color: var(--cream);
    background-image: radial-gradient(circle, #e5e5e5 1px, transparent 1px);
    background-size: 20px 20px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    overflow: hidden;
}

header {
    text-align: center;
    margin-bottom: 24px;
}

.logo-box {
    display: inline-block;
    background: var(--blue);
    border: var(--border);
    box-shadow: 4px 4px 0 var(--black);
    padding: 12px 32px;
    margin-bottom: 16px;
    transform: rotate(-1deg);
}

h1 {
    font-family: 'Righteous', sans-serif;
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--white);
    letter-spacing: 1px;
}

.subtitle {
    display: inline-block;
    background: var(--coral);
    border: var(--border);
    box-shadow: 3px 3px 0 var(--black);
    padding: 6px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--white);
    transform: rotate(1deg);
}

.decorator {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.decorator span {
    width: 10px;
    height: 10px;
    background: var(--black);
    transform: rotate(45deg);
}

.decorator span:nth-child(2) {
    background: var(--blue);
}

.decorator span:nth-child(3) {
    background: var(--coral);
}

main {
    width: 100%;
    max-width: 800px;
    min-height: 400px;
    flex: 1;
}

deep-chat {
    display: block;
    width: 100%;
    height: 100%;
    border: 3px solid var(--black);
    border-radius: 0;
    background: var(--white);
}

@media (max-width: 640px) {
    body {
        padding: 16px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .logo-box {
        padding: 10px 20px;
        box-shadow: 3px 3px 0 var(--black);
    }

    .subtitle {
        font-size: 0.7rem;
        padding: 5px 12px;
    }
}