:root {
    color-scheme: light;
    --bg-top: #f7f7ef;
    --bg-bottom: #eef7fb;
    --panel: rgba(255, 255, 255, 0.94);
    --panel-border: rgba(15, 23, 42, 0.08);
    --text: #172033;
    --muted: #52607a;
    --accent: #0f766e;
    --accent-soft: rgba(15, 118, 110, 0.12);
    --danger: #b42318;
    --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.8), transparent 35%),
        linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

.shell {
    width: min(940px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 56px;
}

.hero {
    padding: 32px 28px 22px;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0 0 8px;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1;
}

.hero p {
    max-width: 680px;
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 28px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.content {
    padding: 0 28px 36px;
}

.content h2,
.content h3 {
    margin-top: 28px;
    color: #0f172a;
}

.content p,
.content li {
    color: var(--text);
    line-height: 1.7;
}

.content ul {
    padding-left: 22px;
}

.meta {
    color: var(--muted);
}

a {
    color: var(--accent);
}

.note {
    padding: 16px 18px;
    margin: 20px 0;
    border-radius: 18px;
    background: #fff9db;
    border: 1px solid rgba(146, 64, 14, 0.16);
}

.danger {
    color: var(--danger);
}

form {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

label {
    display: grid;
    gap: 8px;
    font-weight: 700;
}

input,
textarea {
    width: 100%;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    font: inherit;
    background: rgba(255, 255, 255, 0.9);
}

textarea {
    min-height: 140px;
    resize: vertical;
}

button {
    border: 0;
    border-radius: 16px;
    padding: 14px 18px;
    font: inherit;
    font-weight: 700;
    background: linear-gradient(135deg, #0f766e, #0ea5a4);
    color: white;
    cursor: pointer;
}

button:disabled {
    opacity: 0.6;
    cursor: wait;
}

.status {
    min-height: 24px;
    color: var(--muted);
}

@media (max-width: 640px) {
    .shell {
        width: min(100%, calc(100% - 20px));
        padding-top: 20px;
    }

    .hero {
        padding: 24px 20px 18px;
    }

    .content {
        padding: 0 20px 28px;
    }
}