/* Rung Coder — secondary pages: download, help centre, subscription, ticket,
   account deletion, legal documents. */

.section-tight { padding-top: 0; }
.is-narrow .container, .subhero.is-narrow .container { max-width: 860px; }

/* ---------- Sub-page hero ---------- */
.subhero { position: relative; padding: calc(var(--nav-h) + 80px) 0 56px; overflow: clip; }
.subhero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 70% at 80% 0%, rgba(58, 232, 170, 0.12), transparent 60%);
}
.subhero-inner { position: relative; max-width: 780px; }
.subhero-title { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.08; letter-spacing: -0.025em; font-weight: 700; text-wrap: balance; }
.subhero-body { margin-top: 20px; font-size: 18px; color: var(--fg-2); max-width: 60ch; }
.subhero-meta { margin-top: 14px; font-size: 12.5px; letter-spacing: 0.06em; color: var(--fg-3); }
.subhero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* ---------- Download ---------- */
.installer { padding-top: calc(var(--nav-h) + 80px); }
.installer-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 56px; align-items: center; }
.installer-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 22px; max-width: 58ch; font-size: 13.5px; color: var(--fg-3); }
.installer-note .icon { color: var(--accent); width: 18px; height: 18px; margin-top: 3px; }
.installer-card { padding: 28px; border-radius: var(--radius-xl); }
.installer-file { display: flex; align-items: center; gap: 16px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.installer-file strong { display: block; font-size: 17px; }
.installer-tag { display: block; margin-top: 3px; font-size: 11px; letter-spacing: 0.14em; color: var(--fg-4); }
.installer-meta { margin: 0; display: grid; }
.installer-meta div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.installer-meta div:last-child { border-bottom: 0; }
.installer-meta dt { font-size: 13.5px; color: var(--fg-3); }
.installer-meta dd { margin: 0; font-size: 14px; color: var(--fg); text-align: right; }
.req-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 44px; }
.req-card { position: relative; padding: 28px; display: grid; gap: 10px; align-content: start; }
.req-index { position: absolute; top: 20px; right: 22px; font-size: 12px; color: var(--fg-4); letter-spacing: 0.14em; }
.req-card h3 { font-size: 18px; padding-right: 40px; }
.req-card p { color: var(--fg-2); font-size: 15px; }

/* ---------- Help centre ---------- */
.help-topbar { display: flex; align-items: center; gap: 12px; padding: 14px 18px; margin-bottom: 40px; border-radius: var(--radius-md); border: 1px dashed var(--line-accent); background: var(--accent-soft); font-size: 14.5px; color: var(--fg); }
.help-topbar .icon { color: var(--accent); }
.doc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 44px; }
.doc-card { padding: 26px; display: grid; gap: 14px; align-content: start; }
.doc-card.is-linked:hover { border-color: var(--accent); }
.doc-top { display: flex; justify-content: space-between; align-items: center; }
.doc-status { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; padding: 4px 9px; border-radius: var(--radius-pill); background: var(--warn-soft); color: var(--warn); }
.doc-card h3 { font-size: 18px; line-height: 1.35; }
.doc-card p { color: var(--fg-3); font-size: 14.5px; }
.faq-wrap { display: grid; gap: 10px; margin-top: 40px; max-width: 900px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.02); overflow: hidden; transition: border-color 0.25s; }
.faq-item.open { border-color: var(--line-accent); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 18px 20px; text-align: left; font-family: var(--font-body); font-size: 16px; font-weight: 600; color: var(--fg); }
.faq-question .icon { color: var(--fg-3); transition: transform 0.3s var(--ease); }
.faq-item.open .faq-question .icon { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--ease); }
.faq-answer p { padding: 0 20px 20px; color: var(--fg-2); font-size: 15px; line-height: 1.75; }
.faq-more { display: flex; margin-top: 18px; max-width: 900px; justify-content: center; }
.faq-more .icon { transition: transform 0.3s; }
.faq-more .is-open .icon { transform: rotate(180deg); }

/* ---------- Subscription ---------- */
.subscription-shell { display: grid; gap: 14px; }
.subscription-note { padding: 12px 16px; border-radius: var(--radius-md); border: 1px solid var(--line); background: rgba(255, 255, 255, 0.03); color: var(--fg-2); font-size: 14.5px; }
.subscription-note.is-error { border-color: rgba(255, 109, 109, 0.3); background: var(--danger-soft); color: #ffb4b4; }
.subscription-note.is-ok { border-color: var(--line-accent); background: var(--accent-soft); color: var(--accent); }
.sub-card { border: 1px solid var(--line-strong); border-radius: var(--radius-xl); background: linear-gradient(180deg, #151a21, #10141a); box-shadow: var(--shadow-panel); overflow: hidden; }
.sub-head { padding: 28px 30px; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, 0.02); }
.sub-head-main { display: flex; align-items: center; gap: 12px; }
.sub-plan { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--fg); letter-spacing: -0.02em; }
.sub-head-meta { margin-top: 8px; font-size: 14.5px; color: var(--fg-3); }
.sub-actions { display: grid; }
.sub-action { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 30px; border-bottom: 1px solid var(--line); }
.sub-action:last-child { border-bottom: 0; }
.sub-action-text { display: grid; gap: 4px; }
.sub-action-text strong { font-size: 16px; }
.sub-action-text span { font-size: 13.5px; color: var(--fg-3); }
.sub-action .button-primary, .sub-action .button-secondary { min-height: 44px; padding: 0 20px; font-size: 14px; flex: 0 0 auto; }

/* ---------- Ticket ---------- */
.ticket-form { padding: 32px; border-radius: var(--radius-xl); display: grid; gap: 18px; }
.ticket-form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.ticket-file { position: relative; display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 0 12px; border-radius: var(--radius-md); border: 1px dashed var(--line-strong); background: var(--bg-1); }
.ticket-file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.ticket-file-button { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: var(--radius-pill); background: var(--bg-3); color: var(--fg); font-size: 13px; font-weight: 600; }
.ticket-file-button .icon { width: 15px; height: 15px; }
.ticket-file-names { font-size: 13.5px; color: var(--fg-3); }
.ticket-attach-locked { display: flex; gap: 10px; align-items: center; padding: 12px 14px; border-radius: var(--radius-md); border: 1px dashed var(--line); font-size: 13.5px; color: var(--fg-3); }
.ticket-attach-locked .icon { color: var(--accent); width: 18px; height: 18px; }
.ticket-feedback { padding: 12px 14px; border-radius: var(--radius-md); font-size: 14px; line-height: 1.6; }
.ticket-feedback.is-pending { background: var(--bg-2); color: var(--fg-2); border: 1px solid var(--line); }
.ticket-feedback.is-success { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--line-accent); }
.ticket-feedback.is-error { background: var(--danger-soft); color: #ffb4b4; border: 1px solid rgba(255, 109, 109, 0.25); }
.ticket-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.ticket-hint { font-size: 13.5px; color: var(--fg-3); }
.ticket-list { display: grid; gap: 12px; margin-top: 36px; }
.ticket-list-note { font-size: 14.5px; color: var(--fg-3); }
.ticket-list-note.is-error { color: #ffb4b4; }
.ticket-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.02); }
.ticket-row-main { display: grid; gap: 4px; min-width: 0; }
.ticket-row-main strong { font-size: 15.5px; }
.ticket-row-main span { font-size: 13px; color: var(--fg-3); }
.ticket-status { flex: 0 0 auto; padding: 4px 11px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--bg-3); color: var(--fg-2); }
.ticket-status.is-open { background: var(--warn-soft); color: var(--warn); }
.ticket-status.is-in_progress { background: rgba(143, 180, 255, 0.14); color: #8fb4ff; }
.ticket-status.is-resolved { background: var(--accent-soft); color: var(--accent); }

/* ---------- Documents (legal + account deletion) ---------- */
.doc-article { max-width: 760px; font-size: 16.5px; line-height: 1.8; color: var(--fg-2); }
.doc-article h2 { font-size: 24px; margin: 52px 0 16px; letter-spacing: -0.01em; }
.doc-article h3 { font-size: 19px; margin: 32px 0 12px; }
.doc-article p { margin: 0 0 16px; }
.doc-article ul, .doc-article ol { margin: 0 0 16px; padding-left: 22px; }
.doc-article li { margin: 6px 0; }
.doc-article hr { border: 0; height: 1px; background: var(--line); margin: 44px 0; }
.doc-article a { color: var(--accent); text-decoration: underline; text-decoration-color: var(--line-accent); text-underline-offset: 3px; }
.doc-article a:hover { text-decoration-color: var(--accent); }
.doc-article code { font-size: 0.88em; padding: 2px 6px; border-radius: 5px; background: var(--bg-2); border: 1px solid var(--line); color: var(--fg); }
.doc-article em { font-style: italic; color: var(--fg); }
[data-locale="zh"] .doc-article em { font-style: normal; color: var(--fg-3); }
.doc-block:first-child h2 { margin-top: 0; }
.doc-article > h2:first-child, .legal-article > p:first-child { margin-top: 0; }
.legal-table-wrap { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--line); border-radius: var(--radius-md); }
.legal-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.legal-table th, .legal-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.legal-table th { background: rgba(255, 255, 255, 0.04); color: var(--fg); font-weight: 600; }
.legal-table tr:last-child td { border-bottom: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .doc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .installer-grid { grid-template-columns: 1fr; gap: 32px; }
  .req-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .subhero { padding-top: calc(var(--nav-h) + 44px); }
  .installer { padding-top: calc(var(--nav-h) + 44px); }
  .doc-grid { grid-template-columns: 1fr; }
  .ticket-form { padding: 22px 18px; }
  .ticket-form-row { grid-template-columns: 1fr; }
  .sub-action { flex-direction: column; align-items: stretch; }
  .sub-action .button-primary, .sub-action .button-secondary { width: 100%; }
  .sub-head, .sub-action { padding-left: 20px; padding-right: 20px; }
  .ticket-row { flex-direction: column; align-items: flex-start; }
}