:root { --bg: #F1F5F9; --fg: #0F172A; --primary: #F97316; --accent: #475569; --muted: #64748B; --border: #E2E8F0; --soft: #FFFFFF; }
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: Inter, system-ui, sans-serif; line-height: 1.55; }
a { color: var(--primary); }
.topbar { display: flex; align-items: center; padding: 18px 28px; background: var(--soft); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 10px; font-family: 'Crimson Pro', serif; font-weight: 700; font-size: 20px; color: var(--accent); }
main { max-width: 1100px; margin: 0 auto; padding: 48px 24px 80px; }
h1 { font-family: 'Crimson Pro', serif; font-weight: 700; font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; }
h1 em { color: var(--primary); font-style: italic; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 32px; max-width: 720px; }
.lead strong { color: var(--accent); }
.form { background: var(--soft); border: 1px solid var(--border); border-radius: 8px; padding: 28px; margin-bottom: 24px; }
.form label { display: block; }
.form label > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; font-weight: 500; }
.form textarea { width: 100%; min-height: 160px; padding: 14px 16px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 15px; line-height: 1.5; resize: vertical; background: var(--bg); }
.form textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.intensity-row { margin-top: 16px; }
.intensity-label input[type=range] { width: 100%; max-width: 320px; accent-color: var(--primary); display: block; margin-top: 8px; }
button { background: var(--primary); color: #fff; border: 0; padding: 14px 28px; border-radius: 6px; font-family: inherit; font-weight: 600; font-size: 15px; cursor: pointer; margin-top: 18px; }
button:hover { background: #ea580c; }
button:disabled { opacity: .5; cursor: wait; }
.loading { display: flex; align-items: center; gap: 12px; padding: 16px; background: var(--soft); border: 1px solid var(--border); border-radius: 6px; color: var(--muted); font-style: italic; }
.spinner { width: 14px; height: 14px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
@media (max-width: 900px) { .results { grid-template-columns: 1fr; } }
.result-card { background: var(--soft); border: 1px solid var(--border); border-radius: 8px; padding: 20px; display: flex; flex-direction: column; }
.result-card.featured { border-color: var(--primary); }
.result-tone { font-family: 'Crimson Pro', serif; font-weight: 700; font-size: 16px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--primary); margin: 0 0 4px; }
.result-subject { font-weight: 600; font-size: 14px; color: var(--fg); margin: 8px 0; padding: 8px 10px; background: var(--bg); border-radius: 4px; font-family: ui-monospace, monospace; }
.result-body { font-size: 14px; color: var(--fg); white-space: pre-wrap; line-height: 1.55; flex: 1; }
.copy-btn { background: transparent; color: var(--primary); border: 1px solid var(--primary); border-radius: 4px; padding: 6px 12px; font-size: 12px; cursor: pointer; margin-top: 12px; align-self: flex-start; font-weight: 600; }
.copy-btn:hover { background: var(--primary); color: #fff; }
footer { text-align: center; padding: 24px; color: var(--muted); font-size: 12px; }