/* Long-form product pages built on base.css: /apps, /gateway, /features, /how-it-works, /security, /faq.
   Cards, device rows, numbered steps, sample-session panels, comparison tables and an in-page index. */
.c-index { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 30px; padding: 0; list-style: none; }
.c-index a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; border: 1px solid var(--m-line); border-radius: 999px; color: var(--m-ink); font-size: 14px; font-weight: 500; background: var(--m-surface); }
.c-index a:hover { border-color: var(--m-ink); text-decoration: none; }

.c-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.c-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.c-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.c-card { background: var(--m-surface); border: 1px solid var(--m-line); border-radius: 16px; padding: 24px; display: grid; gap: 10px; align-content: start; }
.m-section--alt .c-card { background: var(--m-bg); }
.c-card h3 { font: 600 18px/1.3 var(--m-body); }
.c-card p { color: var(--m-ink-2); font-size: 16px; }
.c-card ul { margin: 4px 0 0; padding-left: 18px; color: var(--m-ink-2); font-size: 15px; display: grid; gap: 4px; }
.c-card .c-tag { justify-self: start; }
.c-tag { display: inline-block; font: 600 12px/1 var(--m-body); letter-spacing: .02em; padding: 6px 9px; border-radius: 999px; background: var(--m-stage); color: var(--m-ink); }
.c-tag--live { background: #dde8fc; color: #1a49a6; }
:root[data-theme="dark"] .c-tag--live { background: #1f2f4f; color: #9cbcf7; }

.c-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.c-row + .c-row { margin-top: clamp(56px, 7vw, 96px); padding-top: clamp(56px, 7vw, 96px); border-top: 1px solid var(--m-line); }
.c-row h2 { font-size: clamp(34px, 4vw, 50px); line-height: 1.04; letter-spacing: -.02em; margin: 10px 0 18px; }
.c-row h3 { font: 600 17px/1.35 var(--m-body); margin: 22px 0 6px; }
.c-row p + p { margin-top: 14px; }
.c-row .c-copy > p:not(.m-kicker) { color: var(--m-ink-2); font-size: 18px; }
.c-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.c-list li { padding: 14px 0; border-top: 1px solid var(--m-line); display: grid; gap: 4px; }
.c-list li:last-child { border-bottom: 1px solid var(--m-line); }
.c-list strong { font-weight: 600; }
.c-list span { color: var(--m-ink-2); font-size: 16px; }
.c-meta { margin-top: 22px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; font-size: 15px; }
.c-meta dt { color: var(--m-ink-2); font-size: 13px; font-weight: 600; }
.c-meta dd { margin: 2px 0 0; }

.c-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: step; }
.c-steps li { counter-increment: step; background: var(--m-surface); border: 1px solid var(--m-line); border-radius: 16px; padding: 24px; display: grid; gap: 8px; align-content: start; }
.c-steps li::before { content: counter(step); font: 400 40px/1 var(--m-display); color: var(--m-accent-text); }
.c-steps h3 { font: 600 18px/1.3 var(--m-body); }
.c-steps p { color: var(--m-ink-2); font-size: 16px; }

.c-session { background: var(--m-panel); color: var(--m-panel-ink); border-radius: 18px; padding: 22px; font-size: 15px; display: grid; gap: 14px; box-shadow: 0 20px 50px -30px rgba(0,0,0,.5); }
.c-session-label { font: 600 12px/1 var(--m-body); letter-spacing: .04em; text-transform: uppercase; color: var(--m-panel-ink-2); }
.c-session-ask { background: var(--m-panel-2); border-radius: 12px; padding: 12px 14px; }
.c-session ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-family: var(--m-mono); font-size: 13px; color: var(--m-panel-ink-2); }
.c-session ol li { display: flex; justify-content: space-between; gap: 12px; }
.c-session ol li::before { content: "✓"; color: var(--m-signal); margin-right: 8px; }
.c-session ol li span:first-child { flex: 1; }
.c-session-reply { line-height: 1.55; }
.c-session-bar { border-top: 1px solid var(--m-panel-line); padding-top: 12px; font-size: 13px; color: var(--m-panel-ink-2); }

.c-table-wrap { overflow-x: auto; border: 1px solid var(--m-line); border-radius: 16px; background: var(--m-surface); }
.c-table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 640px; }
.c-table th, .c-table td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--m-line); vertical-align: top; }
.c-table thead th { font-size: 13px; font-weight: 600; color: var(--m-ink-2); background: var(--m-bg-alt); }
.c-table tbody th { font-weight: 600; }
.c-table tr:last-child > * { border-bottom: 0; }
.c-note { margin-top: 18px; font-size: 14px; color: var(--m-ink-2); max-width: 80ch; }

.c-band { background: var(--m-panel); color: var(--m-panel-ink); }
.c-band .m-kicker, .c-band p { color: var(--m-panel-ink-2); }
.c-band .c-card { background: var(--m-panel-2); border-color: var(--m-panel-line); }
.c-band .c-card h3 { color: var(--m-panel-ink); }
.c-band .c-card p { color: var(--m-panel-ink-2); }
.c-band h2 { color: var(--m-panel-ink); }

.c-faq-group + .c-faq-group { margin-top: clamp(48px, 6vw, 72px); }
.c-close { text-align: center; }
.c-close h2 { font-size: clamp(36px, 4.6vw, 56px); line-height: 1.04; letter-spacing: -.02em; }
.c-close p { margin: 16px auto 28px; max-width: 56ch; color: var(--m-ink-2); font-size: 18px; }
.c-close .m-actions { justify-content: center; }

@media (max-width: 1000px) {
  .c-grid, .c-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c-row { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .c-grid, .c-grid--2, .c-grid--4, .c-steps { grid-template-columns: 1fr; }
  .c-meta { grid-template-columns: 1fr; }
}