:root { --bg: #FAFAFA; --fg: #0F172A; --primary: #4F46E5; --counter: #F59E0B; --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: 'Playfair Display', serif; font-weight: 700; font-size: 20px; color: var(--fg); }
main { max-width: 760px; margin: 0 auto; padding: 48px 24px 80px; }
h1 { font-family: 'Playfair Display', serif; font-weight: 700; font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; }
h1 em { color: var(--counter); font-style: italic; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 32px; }
.opinion-card { background: var(--soft); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.opinion-card label { display: block; }
.opinion-card label > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; font-weight: 500; }
.opinion-card textarea { width: 100%; min-height: 140px; padding: 14px 16px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 15px; line-height: 1.55; resize: vertical; }
.opinion-card textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
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: 14px; }
button:hover { background: #4338CA; }
button:disabled { opacity: .5; cursor: wait; }
.loading { display: flex; align-items: center; gap: 12px; margin-top: 16px; 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); } }
.debate { display: flex; flex-direction: column; gap: 20px; }
.turn { padding: 20px 24px; background: var(--soft); border-radius: 8px; border: 1px solid var(--border); }
.turn.user { border-left: 4px solid var(--primary); }
.turn.counter { border-left: 4px solid var(--counter); }
.turn-label { font-family: 'Playfair Display', serif; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.turn-content { white-space: pre-wrap; font-size: 15px; line-height: 1.6; color: var(--fg); }
.sources { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--border); }
.sources h4 { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.sources ul { list-style: decimal; padding-left: 18px; margin: 0; }
.sources li { font-size: 13px; margin-bottom: 6px; color: var(--muted); }
.sources a { color: var(--primary); }
.reply-form { padding: 20px 24px; background: var(--soft); border-radius: 8px; border: 1px solid var(--border); }
.reply-form textarea { width: 100%; min-height: 90px; padding: 12px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 14px; resize: vertical; }
footer { text-align: center; padding: 24px; color: var(--muted); font-size: 12px; }