/* ServerlessWP theme — prototype styles
   Sits on top of Bootstrap 5.3 and uses its native data-bs-theme color modes. */

:root,
[data-bs-theme="light"] {
  --swp-bg: #fafaf9;
  --swp-bg-elev: #ffffff;
  --swp-bg-soft: #f1f5f4;
  --swp-border: #e4e4e7;
  --swp-border-strong: #d4d4d8;
  --swp-fg: #18181b;
  --swp-fg-muted: #52525b;
  --swp-fg-subtle: #71717a;
  --swp-accent: #0d9488;
  --swp-accent-hover: #0f766e;
  --swp-accent-soft: rgba(13, 148, 136, 0.08);
  --swp-code-bg: #f4f4f5;
  --swp-callout-bg: #ecfeff;
  --swp-callout-border: #06b6d4;
}

[data-bs-theme="dark"] {
  --swp-bg: #0b1220;
  --swp-bg-elev: #111a2c;
  --swp-bg-soft: #152135;
  --swp-border: #1f2a44;
  --swp-border-strong: #2a3a5c;
  --swp-fg: #e6edf6;
  --swp-fg-muted: #a3b1c6;
  --swp-fg-subtle: #7c8aa3;
  --swp-accent: #2dd4bf;
  --swp-accent-hover: #5eead4;
  --swp-accent-soft: rgba(45, 212, 191, 0.12);
  --swp-code-bg: #0f172a;
  --swp-callout-bg: rgba(34, 211, 238, 0.08);
  --swp-callout-border: #22d3ee;
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  background: var(--swp-bg);
  color: var(--swp-fg);
  overflow-x: clip;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "ss01", "cv11";
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--swp-fg);
}
h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); line-height: 1.15; }
h2 { font-size: 1.65rem; margin-top: 2.5rem; }
h3 { font-size: 1.25rem; margin-top: 2rem; }

p, li { color: var(--swp-fg); }
.text-muted-swp { color: var(--swp-fg-muted) !important; }

a {
  color: var(--swp-accent);
  text-decoration-color: color-mix(in srgb, var(--swp-accent) 35%, transparent);
  text-underline-offset: 3px;
}
a:hover { color: var(--swp-accent-hover); text-decoration-color: var(--swp-accent-hover); }

code, kbd, pre, samp {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
}
:not(pre) > code {
  background: var(--swp-code-bg);
  border: 1px solid var(--swp-border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  color: var(--swp-fg);
}
pre {
  background: var(--swp-code-bg);
  border: 1px solid var(--swp-border);
  border-left: 3px solid var(--swp-accent);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.55;
}
pre code { background: transparent; border: 0; padding: 0; }

hr { border-color: var(--swp-border); opacity: 1; }

/* Buttons — flatter, no gradients */
.btn { border-radius: 5px; font-weight: 500; padding: 0.55rem 1rem; }
.btn-primary {
  background: var(--swp-accent);
  border-color: var(--swp-accent);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--swp-accent-hover);
  border-color: var(--swp-accent-hover);
  color: #fff;
}
.btn-outline-swp {
  background: transparent;
  border: 1px solid var(--swp-border-strong);
  color: var(--swp-fg);
}
.btn-outline-swp:hover {
  border-color: var(--swp-accent);
  color: var(--swp-accent);
}

/* ---------- Header ---------- */
.swp-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: color-mix(in srgb, var(--swp-bg) 88%, transparent);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--swp-border);
}
.swp-header .navbar { padding: 0.75rem calc(var(--bs-gutter-x) * .5); }
.swp-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 650; color: var(--swp-fg); text-decoration: none; }
.swp-brand:hover { color: var(--swp-fg); }
.swp-logo-placeholder {
  width: 30px; height: 30px;
  border: 1px dashed var(--swp-border-strong);
  border-radius: 5px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 9px; color: var(--swp-fg-subtle); letter-spacing: 0.08em;
  background: var(--swp-bg-soft);
}
.swp-nav .nav-link {
  color: var(--swp-fg-muted);
  font-size: 0.95rem;
  padding: 0.4rem 0.85rem;
  border-radius: 4px;
}
.swp-nav .nav-link:hover,
.swp-nav .nav-link.active {
  color: var(--swp-fg);
  background: var(--swp-bg-soft);
}

/* GitHub star count */
.swp-github-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  height: 38px;
  padding: 0 0.7rem;
  border: 1px solid var(--swp-border);
  background: var(--swp-bg-elev);
  color: var(--swp-fg-muted);
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.swp-github-stars:hover {
  color: var(--swp-fg);
  border-color: var(--swp-border-strong);
  text-decoration: none;
}
.swp-github-stars .swp-github-icon { fill: currentColor; flex-shrink: 0; }
.swp-github-stars .count { line-height: 1; }
@media (max-width: 419.98px) {
  .swp-github-stars { padding: 0 0.55rem; }
}

/* Theme toggle button */
.swp-theme-toggle {
  width: 38px; height: 38px;
  border: 1px solid var(--swp-border);
  background: var(--swp-bg-elev);
  border-radius: 6px;
  color: var(--swp-fg-muted);
  display: inline-flex; align-items: center; justify-content: center;
}
.swp-theme-toggle:hover { color: var(--swp-fg); border-color: var(--swp-border-strong); }
[data-bs-theme="dark"] .swp-theme-toggle .swp-icon-sun { display: inline; }
[data-bs-theme="dark"] .swp-theme-toggle .swp-icon-moon { display: none; }
[data-bs-theme="light"] .swp-theme-toggle .swp-icon-sun,
:root:not([data-bs-theme="dark"]) .swp-theme-toggle .swp-icon-sun { display: none; }
[data-bs-theme="light"] .swp-theme-toggle .swp-icon-moon,
:root:not([data-bs-theme="dark"]) .swp-theme-toggle .swp-icon-moon { display: inline; }

/* Offcanvas mobile nav */
.offcanvas { background: var(--swp-bg); color: var(--swp-fg); }
.offcanvas .nav-link {
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid var(--swp-border);
  color: var(--swp-fg);
}

/* ---------- Hero ---------- */
.swp-hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--swp-border);
}
.swp-hero .eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--swp-accent);
  background: var(--swp-accent-soft);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}
.swp-hero p.lead {
  font-size: 1.15rem;
  color: var(--swp-fg-muted);
  max-width: 60ch;
}

/* Hero two-column: copy on the left, animated diagram floated right to
   balance the left-aligned text. Stacks below the copy under lg. */
.swp-hero-grid {
  display: flex;
  align-items: center;
  gap: 3rem;
}
.swp-hero-copy { flex: 1 1 0; min-width: 0; }
.swp-hero-viz {
  flex: 0 0 auto;
  width: 380px;
  max-width: 100%;
}
@media (max-width: 991.98px) {
  .swp-hero-grid { flex-direction: column; align-items: flex-start; gap: 2.5rem; }
  .swp-hero-viz { width: 100%; max-width: 460px; align-self: center; }
}

/* ---------- "How it works" flow diagram ---------- */
.flow-diagram {
  --glyph-h: 60px;
  position: relative;
  display: flex;
  align-items: flex-start;     /* align glyph tops so packets fly level */
  justify-content: space-between;
  max-width: 480px;
  margin: 0 auto;
}
.flow-rail {
  position: absolute; left: 11%; right: 11%; top: calc(var(--glyph-h) / 2);
  height: 0; border-top: 2px dashed var(--swp-border-strong);
  transform: translateY(-50%); z-index: 0;
}
.flow-diagram .node {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 0.55rem;
}
.flow-diagram .glyph {
  width: 74px; height: var(--glyph-h);
  background: var(--swp-bg-elev);
  border: 1px solid var(--swp-border);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  transition: border-color 300ms ease, box-shadow 300ms ease;
}
.flow-diagram .label { font-size: 0.78rem; color: var(--swp-fg-muted); font-weight: 500; }
.flow-diagram .sublabel { font-size: 0.68rem; color: var(--swp-fg-subtle); margin-top: -0.4rem; }

/* Browser glyph */
.glyph.browser { flex-direction: column; padding: 0; }
.glyph.browser .bar {
  height: 16px; width: 100%; background: var(--swp-bg-soft);
  border-bottom: 1px solid var(--swp-border);
  display: flex; align-items: center; gap: 4px; padding: 0 7px;
}
.glyph.browser .bar i { width: 5px; height: 5px; border-radius: 50%; background: var(--swp-border-strong); }
.glyph.browser .page { flex: 1; width: 100%; padding: 8px 9px; }
.glyph.browser .page .ln { height: 5px; border-radius: 3px; background: var(--swp-bg-soft); margin-bottom: 5px; }
.glyph.browser .page .ln.a { width: 55%; } .glyph.browser .page .ln.b { width: 85%; } .glyph.browser .page .ln.c { width: 70%; }
.glyph.browser.done .page .ln.a { width: 60%; background: var(--swp-accent); opacity: 0.85; }
.glyph.browser.done .page .ln.b,
.glyph.browser.done .page .ln.c { background: var(--swp-accent-soft); }

/* ServerlessWP function glyph */
.glyph.lambda { width: 88px; overflow: visible; }
.glyph.lambda .glow {
  position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(circle at 50% 55%, var(--swp-accent-soft), transparent 65%);
  opacity: 0; transition: opacity 350ms ease;
}
.glyph.lambda.awake { border-color: var(--swp-accent); box-shadow: 0 0 0 1px var(--swp-accent-soft); }
.glyph.lambda.awake .glow { opacity: 1; }

/* One-shot ring that radiates outward the instant the function wakes. */
.glyph.lambda::after {
  content: ""; position: absolute; inset: -1px; border-radius: inherit;
  border: 2px solid var(--swp-accent);
  opacity: 0; pointer-events: none;
}
.glyph.lambda.awake::after { animation: swp-wake-ring 750ms ease-out; }
@keyframes swp-wake-ring {
  0%   { opacity: 0.85; transform: scale(1); }
  100% { opacity: 0;    transform: scale(1.45); }
}

/* "Runs on" platform strip floating above the function box. Absolutely
   positioned so it never shifts the glyph center and packets stay level. */
.flow-diagram .platforms {
  position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 9px; white-space: nowrap;
}
.flow-diagram .platforms svg { height: 11px; width: auto; fill: var(--swp-fg-subtle); opacity: 0.85; }
.flow-diagram .platforms .runs-on {
  font-size: 0.56rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--swp-fg-subtle); margin-right: 1px;
}

/* WP + PHP logos shown inside the function box */
.flow-diagram .stack {
  display: flex; align-items: center; gap: 8px; position: relative; z-index: 1;
  transition: filter 350ms ease, opacity 350ms ease;
}
.flow-diagram .stack svg { width: 21px; height: 21px; display: block; }
.flow-diagram .logo-wp  { fill: #21759b; }
.flow-diagram .logo-php { fill: #777bb4; }
[data-bs-theme="dark"] .flow-diagram .logo-wp { fill: #5b9dd9; }
/* Idle = dimmed & desaturated; the function "lights up" when it wakes. */
.glyph.lambda:not(.awake) .stack { filter: grayscale(1); opacity: 0.4; }

/* Storage glyph */
.glyph.store svg { width: 38px; height: 38px; }
.glyph.store .bk-body { fill: var(--swp-bg-soft); stroke: var(--swp-border-strong); stroke-width: 3; }
.glyph.store .bk-top  { fill: var(--swp-bg-elev); stroke: var(--swp-border-strong); stroke-width: 3; }

/* Flying packet */
.flow-diagram .packet {
  position: absolute; z-index: 3; top: 50%; left: 0;
  transform: translate(-50%, -50%);
  padding: 2px 8px; border-radius: 999px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.66rem; font-weight: 600; white-space: nowrap;
  background: var(--swp-accent); color: #fff;
  box-shadow: 0 4px 14px var(--swp-accent-soft);
  opacity: 0; pointer-events: none;
}
.flow-diagram .packet.ok { background: #1f883d; }
[data-bs-theme="dark"] .flow-diagram .packet.ok { background: #2ea043; }

/* Stack vertically on very narrow screens with a vertical rail. */
@media (max-width: 420px) {
  .flow-diagram { flex-direction: column; align-items: center; gap: 1.8rem; max-width: 150px; }
  .flow-rail {
    left: 50%; right: auto; top: 9%; bottom: 9%; height: auto; width: 0;
    border-top: 0; border-left: 2px dashed var(--swp-border-strong); transform: translateX(-50%);
  }
}

/* Respect reduced-motion: the diagram is shown in its lit "awake" state and
   the JS skips the loop (see theme.js), so nothing animates. */
@media (prefers-reduced-motion: reduce) {
  .glyph.lambda.awake::after { animation: none; }
}

/* ---------- Section helpers ---------- */
.swp-section { padding: 4rem 0; border-bottom: 1px solid var(--swp-border); }
.swp-section-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--swp-fg-subtle);
  margin-bottom: 0.5rem;
}
.swp-section h2 { margin-top: 0; }

/* Benefit cards */
.swp-benefit {
  border: 1px solid var(--swp-border);
  border-radius: 8px;
  padding: 1.4rem 1.4rem 1.5rem;
  background: var(--swp-bg-elev);
  height: 100%;
}
.swp-benefit h3 { margin-top: 0.5rem; font-size: 1.05rem; }
.swp-benefit p { color: var(--swp-fg-muted); font-size: 0.95rem; margin-bottom: 0; }
.swp-benefit .swp-benefit-icon {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  background: var(--swp-accent-soft);
  color: var(--swp-accent);
  font-weight: 700;
}

/* Changelog list */
.swp-changelog { list-style: none; padding: 0; margin: 0; }
.swp-changelog > li {
  border: 1px solid var(--swp-border);
  border-radius: 8px;
  padding: 1.1rem 1.25rem;
  background: var(--swp-bg-elev);
  margin-bottom: 0.85rem;
}
.swp-changelog .meta {
  display: flex; gap: 0.75rem; align-items: baseline;
  font-size: 0.85rem;
  color: var(--swp-fg-subtle);
  margin-bottom: 0.4rem;
}
.swp-changelog .meta .version {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  color: var(--swp-accent);
  background: var(--swp-accent-soft);
  padding: 0.05rem 0.45rem;
  border-radius: 4px;
  font-size: 0.8rem;
}
.swp-changelog ul { margin: 0; padding-left: 1.1rem; }
.swp-changelog ul li { color: var(--swp-fg-muted); }

/* Quote cards */
.swp-quote {
  border: 1px solid var(--swp-border);
  border-radius: 8px;
  padding: 1.3rem 1.3rem 1rem;
  background: var(--swp-bg-elev);
  height: 100%;
  display: flex; flex-direction: column;
}
.swp-quote blockquote {
  font-size: 1rem;
  color: var(--swp-fg);
  margin: 0 0 1rem;
  flex: 1;
}
.swp-quote blockquote::before { content: "\201C"; color: var(--swp-accent); font-size: 1.3em; margin-right: 0.1em; }
.swp-quote .attr { font-size: 0.85rem; color: var(--swp-fg-subtle); }
.swp-quote .attr strong { color: var(--swp-fg); font-weight: 600; }

/* Final CTA */
.swp-cta-strip {
  background: var(--swp-bg-soft);
  border: 1px solid var(--swp-border);
  border-radius: 10px;
  padding: 2.25rem 2rem;
  display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; justify-content: space-between;
}
.swp-cta-strip h3 { margin: 0; }

/* ---------- Doc/page layout ---------- */
.swp-doc { padding: 2.5rem 0 4rem; }
.swp-breadcrumbs {
  font-size: 0.85rem; color: var(--swp-fg-subtle);
  margin-bottom: 1.25rem;
}
.swp-breadcrumbs a { color: var(--swp-fg-muted); text-decoration: none; }
.swp-breadcrumbs a:hover { color: var(--swp-accent); }
.swp-breadcrumbs .sep { margin: 0 0.4rem; color: var(--swp-border-strong); }

.swp-doc-title { margin-top: 0; }
.swp-doc-meta { color: var(--swp-fg-subtle); font-size: 0.9rem; margin-bottom: 2rem; }

.swp-prose { max-width: 100%; }
@media (min-width: 992px) {
  .swp-prose { max-width: 72ch; }
}
.swp-prose > * + * { margin-top: 1rem; }
.swp-prose h2 { margin-top: 2.5rem; }
.swp-prose h3 { margin-top: 1.75rem; }
.swp-prose blockquote {
  border-left: 3px solid var(--swp-accent);
  padding: 0.25rem 0 0.25rem 1rem;
  color: var(--swp-fg-muted);
  margin: 1.25rem 0;
}

.swp-callout {
  border: 1px solid var(--swp-border);
  border-left: 3px solid var(--swp-callout-border);
  background: var(--swp-callout-bg);
  border-radius: 6px;
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
}
.swp-callout .label {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--swp-callout-border);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* Sidebar */
.swp-sidebar {
  font-size: 0.92rem;
}
@media (min-width: 992px) {
  .swp-sidebar {
    position: sticky;
    top: 5rem;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    padding-left: 1.5rem;
    border-left: 1px solid var(--swp-border);
  }
}
.swp-sidebar h4 {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--swp-fg-subtle);
  margin: 0 0 0.6rem;
}
.swp-sidebar ul { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.swp-sidebar ul li { margin: 0; }
.swp-sidebar ul a {
  display: block;
  padding: 0.3rem 0;
  color: var(--swp-fg-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 0.6rem;
  margin-left: -0.6rem;
}
.swp-sidebar ul a:hover { color: var(--swp-fg); }
.swp-sidebar ul a.active {
  color: var(--swp-accent);
  border-left-color: var(--swp-accent);
}
.swp-sidebar .sub a { padding-left: 1.4rem; font-size: 0.88rem; }

/* On mobile, sidebar drops below content with a top border separator */
@media (max-width: 991.98px) {
  .swp-sidebar {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--swp-border);
  }
}

/* ---------- Footer ---------- */
.swp-footer {
  border-top: 1px solid var(--swp-border);
  padding: 2.5rem 0 3rem;
  color: var(--swp-fg-subtle);
  font-size: 0.9rem;
}
.swp-footer a { color: var(--swp-fg-muted); text-decoration: none; }
.swp-footer a:hover { color: var(--swp-accent); }
.swp-footer .swp-footer-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--swp-accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* Reduce horizontal padding on small screens */
@media (max-width: 575.98px) {
  .swp-hero { padding: 3rem 0 2.5rem; }
  .swp-hero .eyebrow { margin-top: 1.5rem; margin-bottom: 4rem; }
  .swp-section { padding: 3rem 0; }
  .swp-cta-strip { padding: 1.5rem 1.25rem; }
}