:root {
  --paper: #EDEEEC;
  --card: #F7F7F5;
  --ink: #1B2430;
  --ink-soft: #5B6470;
  --pro: #1F6F5C;
  --pro-soft: #DCEAE5;
  --con: #B0492F;
  --con-soft: #F3E1DA;
  --brass: #B5872E;
  --line: #D8D9D4;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

.site-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.01em;
}

main { max-width: 980px; margin: 0 auto; padding: 32px 24px 80px; }

/* ---------- Home ---------- */

.home-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 600;
  margin: 8px 0 4px;
}

.home-sub { color: var(--ink-soft); margin: 0 0 32px; font-size: 17px; }

.question-list { list-style: none; padding: 0; margin: 0; }

.question-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.question-link {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
}
.question-link:hover { color: var(--brass); }

.question-meta { font-family: var(--font-mono); font-size: 13px; white-space: nowrap; }
.meta-pro { color: var(--pro); }
.meta-con { color: var(--con); }
.meta-sep { color: var(--ink-soft); margin: 0 4px; }

.empty-state { color: var(--ink-soft); font-style: italic; padding: 16px 0; }

/* ---------- Question header + balance bar ---------- */

.question-header { margin-bottom: 28px; }

.question-text {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 20px;
}

.balance-bar {
  display: flex;
  height: 14px;
  border-radius: 7px;
  overflow: hidden;
  background: var(--line);
}

.balance-fill-pro { background: var(--pro); transition: width 0.3s ease; }
.balance-fill-con { background: var(--con); transition: width 0.3s ease; }

.balance-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.balance-label-pro { color: var(--pro); }
.balance-label-con { color: var(--con); }
.balance-label-pro strong, .balance-label-con strong { font-size: 15px; }

/* ---------- Tabs (mobile only) ---------- */

.tab-radio { display: none; }
.tab-bar { display: none; }

/* ---------- Columns ---------- */

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}

.col {
  background: var(--card);
  border-radius: 12px;
  padding: 20px;
  border-top: 3px solid transparent;
}

.col-pro { border-top-color: var(--pro); }
.col-con { border-top-color: var(--con); }

.col-heading {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 16px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.col-heading-pro { color: var(--pro); }
.col-heading-con { color: var(--con); }
.col-count { font-family: var(--font-mono); font-size: 13px; color: var(--ink-soft); }

/* ---------- Forms ---------- */

.comment-form, .reply-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.comment-form input[type="text"],
.reply-form input[type="text"],
.comment-form textarea,
.reply-form textarea {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  resize: vertical;
}

.comment-form textarea { min-height: 64px; }
.reply-form textarea { min-height: 50px; }

.comment-form input:focus, .reply-form input:focus,
.comment-form textarea:focus, .reply-form textarea:focus {
  outline: 2px solid var(--brass);
  outline-offset: 1px;
}

.btn-primary {
  align-self: flex-start;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 9px 18px;
  border: none;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
}
.btn-pro { background: var(--pro); }
.btn-con { background: var(--con); }
.btn-pro:hover { background: #195c4d; }
.btn-con:hover { background: #963c26; }

.btn-secondary {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

/* ---------- Comments ---------- */

.comment-list { display: flex; flex-direction: column; gap: 14px; }

.comment {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.comment-author { font-weight: 600; color: var(--ink); }

.ai-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  background: var(--brass);
  color: #fff;
  padding: 1px 6px;
  border-radius: 4px;
}

.comment-time { font-family: var(--font-mono); font-size: 12px; }

.comment-body { margin: 0 0 8px; font-size: 15px; }

.comment-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.vote-btn {
  font-family: var(--font-mono);
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 6px;
  width: 28px;
  height: 26px;
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 12px;
}
.vote-btn.active { color: #fff; border-color: transparent; }
.vote-btn[data-value="1"].active { background: var(--pro); }
.vote-btn[data-value="-1"].active { background: var(--con); }

.comment-score {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  min-width: 22px;
  text-align: center;
}

.reply-toggle {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: 4px;
}
.reply-toggle:hover { color: var(--brass); }

.replies {
  margin-left: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reply-form[hidden] { display: none; }
.reply-form { margin-top: 10px; }

/* ---------- Mobile ---------- */

@media (max-width: 768px) {
  main { padding: 20px 16px 60px; }

  .tab-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 16px;
  }

  .tab-label {
    text-align: center;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 13px;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--line);
    cursor: pointer;
    background: var(--card);
    color: var(--ink-soft);
  }
  .tab-label-pro { border-bottom: 3px solid var(--pro); }
  .tab-label-con { border-bottom: 3px solid var(--con); }
  .tab-count { margin-left: 4px; }

  #tab-pro:checked ~ .tab-bar .tab-label-pro,
  #tab-con:checked ~ .tab-bar .tab-label-con {
    background: var(--ink);
    color: #fff;
    border-color: var(--ink);
  }

  .columns { grid-template-columns: 1fr; gap: 0; }

  #tab-pro:checked ~ .columns .col-con { display: none; }
  #tab-con:checked ~ .columns .col-pro { display: none; }
}