/* ============================================================================
   Siphrix — Landing section styles
   problem · pipeline · layers · demo · capabilities · integrations ·
   quickstart · cta · footer   (loads after landing.css)
   ============================================================================ */

/* ===================== PROBLEM ===================== */
.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
@media (max-width: 900px) { .problem-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .problem-grid { grid-template-columns: 1fr; } }
.problem-card {
  padding: 1.5rem; transform-style: preserve-3d;
  transform: perspective(800px) rotateX(var(--rx,0)) rotateY(var(--ry,0));
  transition: transform var(--t) var(--ease), border-color var(--t);
}
.problem-card:hover { border-color: var(--line-teal); }
.pc-ic {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px;
  font-size: 1.3rem; margin-bottom: 1rem; background: var(--bg-4);
}
.pc-ic.block { color: var(--block); box-shadow: inset 0 0 0 1px rgba(224,85,107,.3); }
.pc-ic.abort { color: var(--abort); box-shadow: inset 0 0 0 1px rgba(246,167,64,.3); }
.pc-ic.review { color: var(--review); box-shadow: inset 0 0 0 1px rgba(139,123,255,.3); }
.problem-card h3 { font-size: 1.1rem; margin-bottom: .45rem; }
.problem-card p { font-size: .95rem; color: var(--ink-2); }
.problem-foot { margin-top: 2.5rem; font-size: .95rem; }

/* ===================== PIPELINE ===================== */
.pipeline {
  display: grid; grid-template-columns: 1fr auto 1.1fr auto 1fr; align-items: center; gap: 1rem;
  padding: 1.6rem; border-radius: var(--radius-lg); margin-bottom: 2.5rem;
}
@media (max-width: 860px) {
  .pipeline { grid-template-columns: 1fr; text-align: center; }
  .pipe-arrow { transform: rotate(90deg); margin: 0 auto; }
}
.pipe-node { display: flex; flex-direction: column; gap: .4rem; padding: 1rem 1.2rem; border-radius: var(--radius); border: 1px solid var(--line); position: relative; }
.pipe-node .pn-label { font-weight: 700; }
.pipe-node code { font-size: .78rem; color: var(--ink-3); }
.pipe-node.firewall { border-color: var(--line-teal); background: rgba(43,212,189,.05); overflow: hidden; }
.pipe-node.firewall .pn-label { color: var(--teal); }
.pn-glow { position: absolute; inset: 0; background: radial-gradient(120px 60px at 50% 0%, var(--allow-glow), transparent 70%); pointer-events: none; }
.pipe-arrow { width: 42px; height: 2px; background: var(--grad-line); position: relative; }
.pipe-arrow::after { content: ""; position: absolute; right: -1px; top: 50%; transform: translateY(-50%); border: 5px solid transparent; border-left-color: var(--line-teal); }
.pipe-arrow.split { background: var(--line-2); }
.pipe-verdicts { display: flex; flex-direction: column; gap: .45rem; }
.pv { font-family: var(--font-mono); font-size: .78rem; padding: .5rem .7rem; border-radius: 8px; border: 1px solid var(--line); }
.pv.allow { color: var(--allow); border-color: rgba(43,212,189,.3); background: rgba(43,212,189,.06); }
.pv.block { color: var(--block); border-color: rgba(224,85,107,.3); background: rgba(224,85,107,.06); }
.pv.abort { color: var(--abort); border-color: rgba(246,167,64,.3); background: rgba(246,167,64,.06); }

/* ===================== LAYERS ===================== */
.layers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
@media (max-width: 760px) { .layers { grid-template-columns: 1fr; } }
.layer { padding: 1.7rem; position: relative; overflow: hidden; transition: border-color var(--t), transform var(--t); }
.layer:hover { border-color: var(--line-teal); transform: translateY(-3px); }
.layer-n { font-family: var(--font-mono); font-size: 2.4rem; font-weight: 700; color: transparent;
  -webkit-text-stroke: 1px rgba(43,212,189,.35); display: block; margin-bottom: .4rem; }
.layer h3 { margin-bottom: .55rem; }
.layer p { font-size: .96rem; margin-bottom: 1rem; }
.layer-tag { font-size: .76rem; color: var(--teal); background: rgba(43,212,189,.08); padding: .3rem .6rem; border-radius: 6px; }

/* ===================== DEMO ===================== */
.demo { border-radius: var(--radius-lg); padding: 1.6rem; }
.demo-controls { display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; margin-bottom: 1.4rem; }
@media (max-width: 760px) { .demo-controls { grid-template-columns: 1fr; } }
.demo-field label { display: block; font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .55rem; }
.seg { display: inline-flex; background: var(--bg-1); border: 1px solid var(--line-2); border-radius: var(--radius-pill); padding: 3px; }
.seg button { padding: .5rem 1.1rem; border-radius: var(--radius-pill); font-weight: 600; font-size: .9rem; color: var(--ink-2); transition: all var(--t-fast); }
.seg button.on { background: var(--grad-teal); color: var(--ink-on-teal); }
.demo-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.demo-chip { display: inline-flex; align-items: center; gap: .45rem; padding: .5rem .8rem; border-radius: 10px; border: 1px solid var(--line); background: var(--bg-2); font-size: .82rem; transition: all var(--t-fast); }
.demo-chip .chip-ic { font-size: .9rem; opacity: .85; }
.demo-chip:hover { border-color: var(--line-2); transform: translateY(-1px); }
.demo-chip.sel { border-color: var(--line-teal); background: rgba(43,212,189,.08); color: var(--ink); box-shadow: 0 0 0 1px var(--line-teal) inset; }
.demo-chip.cat-destructive.sel, .demo-chip.cat-financial.sel { border-color: rgba(224,85,107,.5); background: rgba(224,85,107,.08); box-shadow: 0 0 0 1px rgba(224,85,107,.4) inset; }
.demo-chip.cat-exfiltration.sel { border-color: rgba(246,167,64,.5); background: rgba(246,167,64,.08); box-shadow: 0 0 0 1px rgba(246,167,64,.4) inset; }
.demo-stage { display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; align-items: start; }
@media (max-width: 680px) { .demo-stage { grid-template-columns: 1fr; } }
.demo-run { white-space: nowrap; }
.demo-result { min-height: 120px; border-radius: var(--radius); border: 1px dashed var(--line-2); padding: 1.2rem; display: flex; flex-direction: column; justify-content: center; }
.demo-result.show { border-style: solid; }
.demo-result.flash { animation: dr-flash .5s var(--ease); }
@keyframes dr-flash { from { box-shadow: 0 0 0 0 var(--allow-glow); } to { box-shadow: 0 0 0 0 transparent; } }
.demo-result.verdict-block.flash { animation-name: dr-flash-b; }
@keyframes dr-flash-b { from { box-shadow: 0 0 0 0 var(--block-glow); } to { box-shadow: 0 0 0 0 transparent; } }
.dr-empty { text-align: center; }
.dr-verdict { display: flex; align-items: center; gap: .9rem; }
.dr-glyph { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 11px; font-size: 1.3rem; font-weight: 700; flex: none; }
.verdict-allow .dr-glyph { color: var(--allow); background: rgba(43,212,189,.12); box-shadow: 0 0 22px -6px var(--allow-glow); }
.verdict-block .dr-glyph { color: var(--block); background: rgba(224,85,107,.12); box-shadow: 0 0 22px -6px var(--block-glow); }
.verdict-abort .dr-glyph { color: var(--abort); background: rgba(246,167,64,.12); box-shadow: 0 0 22px -6px var(--abort-glow); }
.dr-out { display: block; font-weight: 700; font-size: 1.25rem; letter-spacing: .02em; }
.verdict-allow .dr-out { color: var(--allow); } .verdict-block .dr-out { color: var(--block); } .verdict-abort .dr-out { color: var(--abort); }
.dr-reason { font-size: .78rem; color: var(--ink-3); }
.dr-fc { margin-left: auto; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-3); border: 1px solid var(--line); padding: .25rem .55rem; border-radius: 6px; }
.dr-explain { font-size: .95rem; color: var(--ink-2); margin: .9rem 0 1rem; }
.dr-audit { border-top: 1px solid var(--line); padding-top: .9rem; }
.dr-audit-head { display: flex; justify-content: space-between; margin-bottom: .7rem; }
.dr-kv { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem .9rem; }
@media (max-width: 520px) { .dr-kv { grid-template-columns: 1fr; } }
.kv { display: flex; justify-content: space-between; gap: .8rem; font-size: .8rem; border-bottom: 1px dotted var(--line); padding-bottom: .35rem; }
.kv span { color: var(--ink-3); font-family: var(--font-mono); }
.kv code { color: var(--ink-2); text-align: right; }

/* ===================== CAPABILITIES ===================== */
.cap-legend { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; margin-bottom: 2rem; }
.cap-filter { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .9rem; border-radius: var(--radius-pill); border: 1px solid var(--line-2); font-size: .88rem; color: var(--ink-2); transition: all var(--t-fast); }
.cap-filter:hover { border-color: var(--line-teal); color: var(--ink); }
.cap-filter.active { background: rgba(255,255,255,.05); color: var(--ink); border-color: var(--line-teal); }
.cap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 1rem; }
.cap-card { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem; transition: border-color var(--t), transform var(--t), opacity var(--t); }
.cap-card:hover { border-color: var(--line-teal); transform: translateY(-3px); }
.cap-card.hide { display: none; }
.cap-top { margin-bottom: .8rem; }
.cap-card h3 { font-size: 1.05rem; margin-bottom: .35rem; }
.cap-card p { font-size: .9rem; color: var(--ink-2); margin-bottom: .9rem; }
.cap-entry { font-size: .74rem; color: var(--teal); background: rgba(43,212,189,.07); padding: .3rem .55rem; border-radius: 6px; display: inline-block; word-break: break-word; }
.cap-card[data-status="contract"] .cap-entry { color: var(--cyan); background: rgba(56,225,255,.07); }
.cap-card[data-status="external"] .cap-entry { color: var(--abort); background: rgba(246,167,64,.07); }

/* ===================== INTEGRATIONS ===================== */
.integ-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
@media (max-width: 900px) { .integ-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .integ-grid { grid-template-columns: 1fr; } }
.integ { padding: 1.4rem; display: flex; flex-direction: column; gap: .9rem; transition: border-color var(--t), transform var(--t); }
.integ:hover { border-color: var(--line-teal); transform: translateY(-3px); }
.integ header { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.integ header h3 { font-size: 1.05rem; }
.integ-p { font-size: .92rem; }
.integ-id { font-size: .74rem; color: var(--ink-3); background: var(--bg-1); padding: .35rem .55rem; border-radius: 6px; align-self: flex-start; }
.copy-btn { font-family: var(--font-mono); font-size: .72rem; color: var(--ink-3); border: 1px solid var(--line-2); border-radius: 6px; padding: .25rem .55rem; transition: all var(--t-fast); position: relative; }
.copy-btn:hover { color: var(--teal); border-color: var(--line-teal); }
.copy-btn.copied { color: var(--allow); border-color: var(--line-teal); }
.copy-btn[data-tip]::after { content: attr(data-tip); position: absolute; bottom: 130%; right: 0; font-size: .65rem; background: var(--bg-4); padding: .2rem .45rem; border-radius: 5px; white-space: nowrap; }
.integ .code { margin: 0; }

/* ===================== QUICKSTART ===================== */
.qs-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 2.5rem; align-items: center; }
@media (max-width: 880px) { .qs-grid { grid-template-columns: 1fr; } }
.qs-copy h2 { margin: 1rem 0; }
.qs-steps { list-style: none; padding: 0; margin: 1.5rem 0; display: flex; flex-direction: column; gap: .9rem; }
.qs-steps li { display: flex; align-items: center; gap: .9rem; font-size: .98rem; color: var(--ink-2); }
.qs-steps li span { flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; background: rgba(43,212,189,.1); color: var(--teal); font-weight: 700; font-family: var(--font-mono); font-size: .85rem; }
.qs-steps code { color: var(--ink); }
.qs-term { padding: 1.1rem; }
.qs-term .bar { display: flex; align-items: center; gap: .5rem; padding-bottom: .85rem; margin-bottom: .85rem; border-bottom: 1px solid var(--line); }
.qs-term .bar small { margin-left: .4rem; color: var(--ink-3); }
.qs-term .bar .copy-btn { margin-left: auto; }
.qs-term .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--bg-4); }
.qs-term .dot.r { background: #e0556b; } .qs-term .dot.y { background: #f6a740; } .qs-term .dot.g { background: #2bd4bd; }

/* ===================== CTA ===================== */
.cta-section { padding-bottom: clamp(5rem, 12vw, 9rem); }
.cta { text-align: center; padding: clamp(2.5rem, 6vw, 4.5rem) var(--gut); border-radius: var(--radius-lg); position: relative; overflow: hidden; }
.cta h2 { font-size: var(--fs-h1); margin-bottom: .8rem; }
.cta p { font-size: 1.1rem; max-width: 46ch; margin: 0 auto 1.8rem; }
.cta-glow { position: absolute; inset: -40% 0 auto 0; height: 80%; background: radial-gradient(600px 240px at 50% 0%, rgba(43,212,189,.18), transparent 70%); pointer-events: none; }

/* ===================== FOOTER ===================== */
.footer { position: relative; z-index: var(--z-content); border-top: 1px solid var(--line); padding-top: 3.5rem; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 2rem; padding-bottom: 2.5rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .14em; color: var(--ink-3); margin-bottom: 1rem; font-weight: 600; }
.footer-col a { display: block; color: var(--ink-2); font-size: .92rem; padding: .3rem 0; transition: color var(--t-fast); }
.footer-col a:hover { color: var(--teal); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: 1.5rem 0 2.5rem; border-top: 1px solid var(--line); }