:root {
    --hr-zwart-blauw:#003340;
    --hr-donkerrood:#b41e4b;
    --hr-rood:#d3104c;
    --hr-room:#f7efe3;
    --hr-accent-geel:#fcc200;
    --hr-accent-blauw:#00b0eb;
    --hr-accent-groen:#3ab7b0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 10px;
    padding: 0;
    font-family: system-ui, sans-serif;
}

h1 {
    margin:0;
    color:var(--hr-donkerrood);
}

model-viewer {
    display: block;
    width: 100%;
    height: 100%;
    background-color: transparent;
}

section#coach-section {
    display: flex;
    height: 60vh;
    gap: 1.5rem;

    @media (max-width: 700px) {
        flex-direction: column;
    }
}

section > div {
    flex: 1;
    min-width: 0;
    min-height: 0;
}

#chat-window {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #f8fafc;
}

#messages {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 0;
    overflow-y: auto;
    padding: 0.25rem 0.5rem 1rem;
}

.message {
    max-width: min(80%, 28rem);
    padding: 0.7rem 0.9rem;
    border-radius: 1rem;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.message--coach {
    align-self: flex-start;
    border-bottom-left-radius: 0.25rem;
    background: #e2e8f0;
    color: #0f172a;
}

.message--user {
    align-self: flex-end;
    border-bottom-right-radius: 0.25rem;
    background: var(--hr-donkerrood);
    color: #fff;
}

#chat-composer {
    display: flex;
    flex-shrink: 0;
    gap: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid #e2e8f0;
}

#chat-composer input {
    flex: 1;
    min-width: 0;
    padding: 0.75rem 0.9rem;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: #fff;
    color: #0f172a;
    font: inherit;
}

#chat-composer input:focus-visible,
#chat-composer button:focus-visible {
    outline: 2px solid var(--hr-donkerrood);
    outline-offset: 2px;
}

#chat-composer button {
    padding: 0.7rem 1rem;
    border: 0;
    border-radius: 999px;
    background: var(--hr-donkerrood);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

#chat-composer button:hover {
    background: #1d4ed8;
}

@media (max-width: 700px) {
    section#coach-section {
        height: auto;
        min-height: 80vh;
        flex-direction: column;
    }

    section#coach-section > div {
        min-height: 18rem;
    }

    section#coach-section > div:first-child {
        flex: 0 0 18rem;
    }
}