/* ============================================================
   OwnAI — How It Works specific styles
   Extends assets/styles.css (loaded first)
   ============================================================ */

/* Page hero — lighter than landing hero, technical tone */
.page-hero {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.page-hero .hero-grid-bg {
  background-image:
    linear-gradient(to right, rgba(148,163,184,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148,163,184,0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 70%);
}
.page-hero-inner {
  position: relative; z-index: 1;
  padding-block: 80px;
  max-width: 880px;
}
@media (min-width: 1024px) { .page-hero-inner { padding-block: 120px; } }
.page-hero .breadcrumb {
  display: inline-flex; gap: 8px; align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  color: var(--c-fg-inverse-muted);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}
.page-hero .breadcrumb a { text-decoration: none; color: var(--c-fg-inverse-muted); }
.page-hero .breadcrumb a:hover { color: var(--c-fg-inverse); }
.page-hero .breadcrumb .sep { color: var(--c-border-inverse-strong); }
.page-hero h1 { color: var(--c-fg-inverse); font-size: var(--t-5xl); line-height: var(--lh-5xl); }
@media (min-width: 768px)  { .page-hero h1 { font-size: var(--t-6xl); line-height: var(--lh-6xl); } }
.page-hero .lede { color: var(--c-fg-inverse-muted); margin-top: 20px; max-width: 60ch; }
.page-hero .sub-sub {
  margin-top: 16px;
  font-size: var(--t-sm);
  color: var(--c-fg-inverse-muted);
  max-width: 64ch;
  border-left: 2px solid var(--c-accent);
  padding-left: 16px;
}
.page-hero-meta {
  margin-top: 32px;
  display: flex; flex-wrap: wrap; gap: 16px 24px;
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  color: var(--c-fg-inverse-muted);
}
.page-hero-meta span strong { color: var(--c-fg-inverse); margin-left: 6px; font-weight: 600; }

/* TOC sidebar (sticky on desktop) */
.with-toc {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .with-toc {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 64px;
  }
}
.toc {
  position: sticky;
  top: 80px;
  align-self: start;
  font-size: var(--t-sm);
  display: none;
}
@media (min-width: 1024px) { .toc { display: block; } }
.toc .lbl {
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-fg-muted);
  font-weight: 600;
  margin-bottom: 12px;
}
.toc ol {
  list-style: none; padding: 0; margin: 0;
  border-left: 1px solid var(--c-border-default);
}
.toc li { counter-increment: toc; }
.toc a {
  display: flex; gap: 10px;
  text-decoration: none;
  color: var(--c-fg-muted);
  padding: 6px 12px;
  border-left: 2px solid transparent;
  margin-left: -1px;
  font-size: var(--t-sm);
  line-height: 1.4;
  transition: color var(--tx), border-color var(--tx);
}
.toc a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--c-fg-subtle);
  flex-shrink: 0;
}
.toc a:hover { color: var(--c-fg-default); }
.toc a.is-active {
  color: var(--c-fg-default);
  border-left-color: var(--c-accent);
  font-weight: 600;
}

/* Section number tag */
.sec-num {
  display: inline-flex;
  align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-pill);
  color: var(--c-fg-muted);
  background: var(--c-bg-elevated);
}

/* ============================================================
   ARCHITECTURE — 3-LAYER STACK
   ============================================================ */
.layers {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.layer {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 24px;
  background: var(--c-bg-default);
  position: relative;
}
.layer-3 { background: var(--c-bg-default); }
.layer-2 {
  background:
    repeating-linear-gradient(135deg, rgba(148,163,184,0.05) 0 6px, transparent 6px 14px),
    var(--c-bg-elevated);
}
.layer-1 { background: var(--c-bg-inverse); color: var(--c-fg-inverse); border-color: var(--c-border-inverse); }
.layer-head {
  display: flex; align-items: baseline; gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.layer-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-pill);
  color: var(--c-fg-muted);
  background: var(--c-bg-default);
  font-weight: 600;
}
.layer-1 .layer-tag {
  color: var(--c-fg-inverse);
  border-color: var(--c-border-inverse-strong);
  background: var(--c-bg-inverse-2);
}
.layer-name {
  font-size: var(--t-xl); font-weight: 700; letter-spacing: -0.01em;
}
.layer-zone {
  margin-left: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-fg-subtle);
  text-transform: uppercase;
}
.layer-1 .layer-zone { color: var(--c-fg-inverse-muted); }
.layer-zone .dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  margin-right: 6px; vertical-align: middle;
}
.zone-customer .dot { background: var(--c-positive); box-shadow: 0 0 0 3px rgba(22,163,74,0.18); }
.zone-cloud .dot { background: var(--c-warning); box-shadow: 0 0 0 3px rgba(217,119,6,0.18); }
.layer-body { color: var(--c-fg-muted); font-size: var(--t-sm); margin-bottom: 16px; }
.layer-1 .layer-body { color: var(--c-fg-inverse-muted); }
.chips {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.chip {
  display: inline-flex;
  align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-btn);
  background: var(--c-bg-default);
  color: var(--c-fg-default);
}
.layer-1 .chip {
  background: var(--c-bg-inverse-2);
  border-color: var(--c-border-inverse-strong);
  color: var(--c-fg-inverse);
}
.layer-1 .chip.roadmap {
  color: var(--c-fg-inverse-muted);
  border-style: dashed;
}
.layer-2 .chip { background: rgba(255,255,255,0.7); }

.layer-arrow {
  display: flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 6px 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--c-fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.layer-arrow svg { color: var(--c-fg-muted); }

.arch-caption {
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  border-left: 3px solid var(--c-accent);
}

/* ============================================================
   DEPLOYMENT TIMELINE
   ============================================================ */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  position: relative;
}
@media (min-width: 1024px) {
  .timeline { grid-template-columns: repeat(4, 1fr); gap: 0; }
}
.phase {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 24px;
  background: var(--c-bg-default);
  display: flex; flex-direction: column;
  position: relative;
}
@media (min-width: 1024px) {
  .phase { border-radius: 0; }
  .phase:first-child { border-top-left-radius: var(--r-card); border-bottom-left-radius: var(--r-card); }
  .phase:last-child  { border-top-right-radius: var(--r-card); border-bottom-right-radius: var(--r-card); }
  .phase:not(:first-child) { border-left: none; }
  .phase::after {
    content: ""; position: absolute; right: -7px; top: 36px;
    width: 13px; height: 13px;
    background: var(--c-bg-default);
    border: 1px solid var(--c-border-default);
    border-left: none; border-bottom: none;
    transform: rotate(45deg); z-index: 2;
  }
  .phase:last-child::after { display: none; }
}
.phase-week {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  color: var(--c-fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex; gap: 8px; align-items: center;
}
.phase-week .num {
  background: var(--c-accent); color: #fff;
  padding: 3px 8px; border-radius: var(--r-pill);
  font-weight: 700;
}
.phase h3 { font-size: var(--t-lg); margin-bottom: 16px; }
.phase-block {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--c-border-default);
}
.phase-block:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
.phase-block .role {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--c-fg-muted);
  margin-bottom: 4px;
}
.phase-block.deliv .role { color: var(--c-positive); }
.phase-block p { font-size: var(--t-sm); color: var(--c-fg-muted); line-height: 1.5; }
.phase-block.deliv p { color: var(--c-fg-default); font-weight: 500; }

/* ============================================================
   STACK — grouped function tiles
   ============================================================ */
.stack-grouped {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) { .stack-grouped { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1280px) { .stack-grouped { grid-template-columns: 1fr 1fr 1fr; } }
.func-card {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 20px;
  background: var(--c-bg-default);
  display: flex; flex-direction: column; gap: 12px;
}
.func-card .func-head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border-default);
}
.func-card .func-name {
  font-weight: 700; font-size: var(--t-base);
}
.func-card .func-count {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--c-fg-subtle);
  letter-spacing: 0.06em;
}
.func-row {
  display: flex; flex-direction: column; gap: 4px;
}
.func-row .nm {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  font-size: var(--t-sm);
  color: var(--c-fg-default);
}
.func-row .role {
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  line-height: 1.5;
  padding-left: 20px;
  border-left: 2px solid var(--c-border-default);
  margin-left: 4px;
}
.func-row code {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
}

/* ============================================================
   HARDWARE TABLE
   ============================================================ */
.hw-table-wrap {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  overflow: hidden;
  overflow-x: auto;
}
.hw-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  font-size: var(--t-sm);
  background: var(--c-bg-default);
}
.hw-table caption {
  caption-side: top;
  text-align: left;
  padding: 16px 20px;
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  background: var(--c-bg-elevated);
  border-bottom: 1px solid var(--c-border-default);
}
.hw-table th, .hw-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-border-default);
  vertical-align: top;
}
.hw-table thead th {
  background: var(--c-bg-elevated);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-fg-muted);
  border-bottom: 1px solid var(--c-border-strong);
}
.hw-table tbody tr:last-child td { border-bottom: none; }
.hw-table tbody tr:hover { background: var(--c-bg-elevated); }
.hw-table .config { font-weight: 600; }
.hw-table .config .sub {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--c-fg-subtle);
  font-weight: 500;
  margin-top: 2px;
}
.hw-table .v-num {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.hw-table .badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  font-size: 11px;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-default);
  color: var(--c-fg-muted);
  font-family: "JetBrains Mono", monospace;
}
.hw-foot {
  margin-top: 12px;
  font-size: var(--t-xs);
  color: var(--c-fg-subtle);
  line-height: 1.5;
}

/* ============================================================
   FINE-TUNING (numbered claims, monospace)
   ============================================================ */
.claims {
  display: grid; gap: 12px;
  margin-top: 24px;
}
.claim {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  background: var(--c-bg-default);
}
.claim-n {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-2xl);
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: -0.03em;
  line-height: 1;
}
.claim p { font-size: var(--t-base); color: var(--c-fg-default); line-height: 1.55; }
.claim p strong { font-weight: 700; }
.claim p code {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* ============================================================
   SECURITY — two diagrams side-by-side
   ============================================================ */
.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 1024px) { .security-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
.sec-diagram {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  border: 1px solid var(--c-border-inverse);
  border-radius: var(--r-card);
  padding: 24px;
  display: flex; flex-direction: column;
}
.sec-diagram h3 {
  color: var(--c-fg-inverse);
  font-size: var(--t-lg);
  display: flex; align-items: center; gap: 12px;
}
.sec-diagram h3 .pill {
  display: inline-flex;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  font-weight: 600;
}
.pill.ephemeral { background: rgba(217,119,6,0.15); color: #FCD34D; border: 1px solid rgba(217,119,6,0.4); }
.pill.steady { background: rgba(22,163,74,0.15); color: #86EFAC; border: 1px solid rgba(22,163,74,0.4); }
.sec-diagram .descr {
  color: var(--c-fg-inverse-muted);
  font-size: var(--t-sm);
  margin-top: 8px;
  margin-bottom: 20px;
}
.sec-svg { width: 100%; height: auto; }
.sec-foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--c-border-inverse);
  font-size: var(--t-xs);
  color: var(--c-fg-inverse-muted);
  font-family: "JetBrains Mono", monospace;
}

/* ============================================================
   AMC — two-column list
   ============================================================ */
.amc {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) { .amc { grid-template-columns: 1fr 1fr; gap: 24px; } }
.amc-col {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 24px;
  background: var(--c-bg-default);
}
.amc-col.included { border-color: var(--c-positive); background: linear-gradient(180deg, rgba(22,163,74,0.04), transparent 60%); }
.amc-col.scope    { border-style: dashed; }
.amc-col h3 { font-size: var(--t-lg); margin-bottom: 4px; }
.amc-col .sub {
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 20px;
}
.amc-col.included .sub { color: var(--c-positive); }
.amc-col.scope .sub { color: var(--c-fg-muted); }
.amc-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.amc-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  line-height: 1.5;
}
.amc-list li .ic {
  width: 20px; height: 20px;
  border-radius: var(--r-btn);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.amc-col.included .ic { background: var(--c-positive-bg); color: var(--c-positive); }
.amc-col.scope .ic { background: var(--c-bg-elevated); color: var(--c-fg-muted); border: 1px solid var(--c-border-default); }
.amc-list li strong { color: var(--c-fg-default); font-weight: 600; }

/* ============================================================
   PDF download promo
   ============================================================ */
.pdf-promo {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  background: var(--c-bg-elevated);
}
@media (min-width: 768px) { .pdf-promo { grid-template-columns: 1fr auto; gap: 32px; } }
.pdf-promo .pdf-ic {
  width: 44px; height: 44px;
  border-radius: var(--r-btn);
  background: var(--c-bg-default);
  border: 1px solid var(--c-border-default);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--c-accent);
  flex-shrink: 0;
}
.pdf-promo .body { display: flex; align-items: center; gap: 16px; }
.pdf-promo .body .t { font-weight: 700; }
.pdf-promo .body .s { color: var(--c-fg-muted); font-size: var(--t-sm); margin-top: 2px; }

/* Final CTA on inner pages */
.final-cta .ctas { gap: 12px; }