* {
    box-sizing: border-box;
}

:root {
    --bg: #0f1115;
    --panel: #161920;
    --muted: #8ea0bc;
    --text: #e8ecf5;
    --accent: #5df2c0;
    --border: #242a34;
    --code: #0b0d12;
    --warn-bg: linear-gradient(120deg, rgba(255, 170, 65, 0.16), rgba(255, 102, 61, 0.12));
    --warn-border: #f09d3a;
    --warn-strong: #ffd7a3;
    font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1,
h2,
h3 {
    margin: 0;
    font-weight: 600;
}

p {
    margin: 0;
    color: var(--muted);
}

.hero {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding: 2.5rem clamp(1.5rem, 2vw, 3rem);
    border-bottom: 1px solid var(--border);
    background:
        radial-gradient(circle at 30% 20%, rgba(93, 242, 192, 0.08), transparent 35%),
        radial-gradient(circle at 80% 0%, rgba(93, 142, 242, 0.12), transparent 35%), var(--panel);
}

.warning-banner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem clamp(1.5rem, 2vw, 3rem);
    border-block: 1px solid var(--warn-border);
    border-inline: none;
    background: var(--warn-bg);
    color: var(--warn-strong);
    box-shadow: inset 0 1px 0 rgba(0, 0, 0, 0.25);
}

.warning-icon {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--warn-border);
    font-weight: 800;
    color: var(--warn-strong);
    letter-spacing: 0.02em;
}

.warning-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.warning-title {
    margin: 0;
    font-weight: 700;
    color: var(--warn-strong);
}

.warning-body {
    margin: 0;
    color: var(--text);
    line-height: 1.4;
}

.head {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.icon {
    display: inline-flex;
    width: 128px;
    height: 128px;
}

.lede {
    margin-top: 0.5rem;
    max-width: 60ch;
    line-height: 1.5;
}

.actions {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.file-picker {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--text);
    color: #0f1115;
    border-radius: 0.5rem;
    padding: 0.85rem 1.2rem;
    cursor: pointer;
    font-weight: 600;
    border: 1px solid transparent;
    transition:
        transform 120ms ease,
        box-shadow 120ms ease;
}

.file-picker input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-picker:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

button,
.button {
    background: var(--accent);
    color: #0b0d12;
    border: none;
    border-radius: 0.5rem;
    padding: 0.8rem 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition:
        transform 120ms ease,
        box-shadow 120ms ease,
        opacity 120ms ease;
}

button:disabled,
.button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

button:not(:disabled):hover,
.button:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

#bmc-button {
    background: none;
    border: none;
    padding: 0;
}

#bmc-button img {
    width: 100%;
    height: 100%;
    max-height: 1.75rem;
}

.layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.25rem;
    padding: 1.5rem clamp(1.5rem, 2vw, 3rem) 2rem;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
}

.panel-header.compact h3 {
    margin-bottom: 0.2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
}

label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.95rem;
    color: var(--muted);
}

input,
textarea {
    width: 100%;
    padding: 0.75rem 0.85rem;
    background: #0c0f15;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text);
    font-size: 1rem;
}

input[readonly] {
    color: #8ca1c7;
    background: #0c1018;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

.metadata {
    min-height: 120px;
    padding: 0.9rem;
    border: 1px dashed var(--border);
    border-radius: 0.5rem;
    background: #0c0f15;
    line-height: 1.4;
    white-space: pre-wrap;
}

.code {
    font-family: "JetBrains Mono", "Fira Code", "SFMono-Regular", monospace;
    background: var(--code);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: #c6d4ff;
    padding: 0.75rem;
}

.footer {
    margin-top: auto;
    padding: 1rem clamp(1.5rem, 2vw, 3rem);
    border-top: 1px solid var(--border);
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0c0f15;
}

.version-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    grid-column: 1 / -1;
}

.version-toggle {
    display: inline-flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.toggle {
    display: inline-flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem;
    color: var(--text);
    font-size: 0.9rem;
    align-items: center;
    white-space: nowrap;
}

.toggle input {
    accent-color: var(--accent);
    width: auto;
    padding: 0;
    margin: 0;
    flex: 0 0 auto;
}

.version-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.version-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.5rem;
}

.version-row input[type="number"],
.version-row input[type="text"] {
    width: 100%;
}

.version-zigbee label {
    gap: 0.25rem;
}

.split {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.6rem;
}

.hint {
    font-size: 0.9rem;
    color: var(--muted);
}

.hidden {
    display: none;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f7f8fb;
        --panel: #ffffff;
        --muted: #5a6475;
        --text: #0b1220;
        --accent: #0f9d58;
        --border: #d9deea;
        --code: #f1f3f8;
        --warn-bg: linear-gradient(120deg, #fff4e8, #ffe8d4);
        --warn-border: #f5b55b;
        --warn-strong: #7a3b00;
        background: var(--bg);
        color: var(--text);
    }

    body {
        background: var(--bg);
    }

    .hero {
        background:
            radial-gradient(circle at 30% 20%, rgba(15, 157, 88, 0.15), transparent 40%),
            radial-gradient(circle at 80% 0%, rgba(15, 118, 157, 0.12), transparent 38%), var(--panel);
    }

    input,
    textarea {
        background: #f6f8fc;
        color: var(--text);
    }

    input[readonly] {
        background: #eef2f8;
        color: #52627a;
    }

    .file-picker {
        background: var(--text);
        color: #ffffff;
    }

    button {
        color: #ffffff;
    }

    .metadata {
        background: #f6f8fc;
        border-color: var(--border);
    }

    .footer {
        background: #eef2f8;
    }
}

@media (max-width: 720px) {
    .hero {
        flex-direction: column;
    }
    .actions {
        flex-direction: column;
        align-items: flex-start;
    }
}