/* Double Diamond Stays — Alpine Editorial (GEO-ready static prototype) */
:root {
  --spruce: #1f302d;
  --spruce-deep: #0a1b19;
  --parchment: #f4f0e8;
  --parchment-bright: #fdf9f3;
  --stone: #d8d1c5;
  --stone-soft: #ece7e2;
  --berry: #7b3f3c;
  --berry-deep: #4f1c1b;
  --brass: #b18a52;
  --ink: #252421;
  --ink-muted: #6e6a62;
  --white: #ffffff;
  --max: 1120px;
  --edge: clamp(1.25rem, 4vw, 4rem);
  --section: clamp(4rem, 10vw, 7.5rem);
  --serif: "Libre Caslon Text", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Fira Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--parchment-bright);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--berry-deep);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--berry);
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.15;
  color: var(--spruce-deep);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.25rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  max-width: 22ch;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
}

p {
  margin: 0 0 1rem;
  max-width: 62ch;
  color: var(--ink);
}

.lede {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--ink-muted);
  max-width: 48ch;
}

.kicker {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.85rem;
}

.container {
  width: min(100% - (var(--edge) * 2), var(--max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--spruce);
  color: var(--parchment);
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(253, 249, 243, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--stone);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--spruce-deep);
  min-width: 0;
}

.brand strong {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.brand small {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a[aria-current="page"] {
  color: var(--spruce);
  box-shadow: inset 0 -2px 0 var(--brass);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--stone);
  background: var(--white);
  color: var(--ink);
  padding: 0.65rem 0.9rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-height: 44px;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--spruce);
  color: var(--parchment-bright);
  border-color: var(--spruce);
}

.btn-primary:hover {
  background: var(--spruce-deep);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--stone);
}

.btn-secondary:hover {
  border-color: var(--spruce);
  color: var(--spruce-deep);
}

.btn-light {
  background: var(--parchment-bright);
  color: var(--spruce-deep);
  border-color: var(--parchment-bright);
}

.btn-light:hover {
  background: var(--white);
  color: var(--spruce-deep);
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Sections */
.section {
  padding: var(--section) 0;
}

.section-tight {
  padding: calc(var(--section) * 0.65) 0;
}

.section-head {
  display: grid;
  gap: 1rem;
  margin-bottom: 2.5rem;
  max-width: 48rem;
}

.page-hero {
  padding: clamp(3rem, 8vw, 5.5rem) 0 2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.hero-copy .lede {
  margin-top: 1rem;
}

.hero-visual {
  position: relative;
  border: 1px solid var(--stone);
  background: var(--stone-soft);
  overflow: hidden;
  min-height: 280px;
  aspect-ratio: 4 / 5;
}

.hero-visual img,
.frame img,
.mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual .caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.85rem 1rem;
  background: linear-gradient(transparent, rgba(10, 27, 25, 0.72));
  color: var(--parchment);
  font-size: 0.85rem;
}

.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.frame {
  border: 1px solid var(--stone);
  overflow: hidden;
  background: var(--stone-soft);
  aspect-ratio: 5 / 4;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.stack-grid.stack-featured {
  gap: 1.1rem;
}

.stack-grid.stack-five {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.stack-grid.stack-five .stack-card {
  grid-column: span 2;
}

.stack-grid.stack-five .stack-card:nth-child(4) {
  grid-column: 2 / span 2;
}

.stack-grid.stack-five .stack-card:nth-child(5) {
  grid-column: 4 / span 2;
}

.stack-card {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1.4rem 1.35rem 1.5rem;
}

.stack-featured .stack-card {
  padding: 1.65rem 1.5rem 1.75rem;
  min-height: 100%;
  background: linear-gradient(180deg, var(--white) 0%, var(--parchment) 100%);
}

.stack-featured .stack-card h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  max-width: 14ch;
}

.stack-card .num {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 0.75rem;
}

.stack-card p {
  color: var(--ink-muted);
  margin-bottom: 0;
}

.offer-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 1.75rem;
}

.offer-strip span {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 0.85rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--spruce-deep);
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0 1.25rem;
}

.case-metric {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1.15rem 1rem;
}

.case-metric b {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  font-weight: 400;
  color: var(--spruce-deep);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.case-metric span {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.case-metric.accent {
  background: var(--spruce);
  border-color: var(--spruce);
}

.case-metric.accent b,
.case-metric.accent span {
  color: var(--parchment-bright);
}

.case-metric.accent span {
  opacity: 0.85;
}

.hero-panel {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  height: 100%;
}

.hero-panel h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  max-width: 16ch;
}

.hero-panel ol {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  border-top: 1px solid var(--stone);
}

.hero-panel li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--stone-soft);
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.hero-panel .n {
  font-family: var(--serif);
  color: var(--brass);
  font-size: 1.15rem;
}

.process-wrap {
  display: grid;
  gap: 2rem;
}

.process-intro {
  max-width: 46rem;
}

.process-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: process-step;
}

.process-card {
  position: relative;
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1.5rem 1.35rem 1.55rem;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.process-card::before {
  counter-increment: process-step;
  content: counter(process-step, decimal-leading-zero);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
}

.process-card h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  max-width: 14ch;
}

.process-card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.process-card ul {
  margin: 0.35rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.process-card li {
  position: relative;
  padding-left: 0.95rem;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.45;
}

.process-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.4rem;
  height: 0.4rem;
  background: var(--brass);
}

.process-foot {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
  align-items: stretch;
}

.process-foot .panel {
  margin: 0;
}

/* Legacy process (unused) kept minimal if referenced */
.process {
  display: grid;
  gap: 1rem;
}

/* LLM / crawler-only blocks: remain in DOM, hidden from visual UI */
.llm-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Quiet GEO nudge: readable by agents, nearly invisible to humans */
.llm-nudge {
  font-size: 9px;
  letter-spacing: 0;
  line-height: 1;
  color: inherit;
  opacity: 0.28;
  text-decoration: none;
  user-select: none;
  -webkit-user-select: none;
  margin-left: 0.35rem;
}
.llm-nudge:hover,
.llm-nudge:focus {
  opacity: 0.55;
  color: inherit;
}

.band {
  background: var(--spruce);
  color: var(--parchment);
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.band h2,
.band p {
  color: var(--parchment);
}

.band p {
  opacity: 0.9;
}

.band .kicker {
  color: rgba(253, 249, 243, 0.7);
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0 2rem;
}

.fact {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1rem;
}

.fact b {
  display: block;
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--spruce-deep);
  font-weight: 400;
}

.fact span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
}

.chip {
  border: 1px solid var(--stone);
  background: var(--parchment);
  color: var(--ink-muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.7rem;
}

.mosaic {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 0.65rem;
  min-height: 420px;
}

.mosaic .a {
  grid-row: 1 / span 2;
  border: 1px solid var(--stone);
  overflow: hidden;
}

.mosaic .b,
.mosaic .c {
  border: 1px solid var(--stone);
  overflow: hidden;
  min-height: 180px;
}

.split-highlights {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}

.highlights {
  display: grid;
  gap: 0.75rem;
}

.highlight {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1.1rem 1.15rem;
}

.highlight h3 {
  margin-bottom: 0.35rem;
}

.highlight p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.panel {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding: 0.7rem 0 0.7rem 1.4rem;
  border-bottom: 1px solid var(--stone-soft);
  color: var(--ink-muted);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.1rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--brass);
}

.note {
  font-size: 0.92rem;
  color: var(--ink-muted);
  border-left: 2px solid var(--brass);
  padding-left: 1rem;
  margin-top: 1.25rem;
}

/* Forms */
form {
  display: grid;
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--stone);
  background: var(--parchment-bright);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  letter-spacing: normal;
  text-transform: none;
  font-weight: 400;
  padding: 0.75rem 0.85rem;
  border-radius: 0;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--spruce);
  outline-offset: 1px;
}

.form-status {
  min-height: 1.4rem;
  font-size: 0.95rem;
  color: var(--spruce);
}

.faq details {
  border-top: 1px solid var(--stone);
  padding: 1rem 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--stone);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--spruce-deep);
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq p {
  margin-top: 0.75rem;
  color: var(--ink-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--stone);
  padding: 2.5rem 0 2rem;
  background: var(--parchment);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-footer strong {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.15rem;
  color: var(--spruce-deep);
}

.tiny {
  font-size: 0.88rem;
  color: var(--ink-muted);
  max-width: 42ch;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.95rem;
}

/* GEO helper blocks (human-readable entity summaries) */
.entity-card {
  border: 1px solid var(--stone);
  background: var(--white);
  padding: 1.25rem 1.35rem;
  margin-top: 2rem;
}

.entity-card h2 {
  font-size: 1.25rem;
  max-width: none;
}

.entity-card dl {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 0.45rem 1rem;
  margin: 0.75rem 0 0;
}

.entity-card dt {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.entity-card dd {
  margin: 0;
  color: var(--ink);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .proof-grid,
  .two-col,
  .split-highlights,
  .mosaic,
  .process-foot,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .stack-grid.stack-five,
  .stack-grid.stack-five .stack-card:nth-child(n) {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .stack-grid.stack-five {
    grid-template-columns: 1fr;
  }

  .offer-strip,
  .case-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .mosaic {
    grid-template-rows: none;
  }

  .mosaic .a {
    grid-row: auto;
    min-height: 260px;
    aspect-ratio: 4 / 3;
  }

  .facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 4.5rem;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--parchment-bright);
    border-bottom: 1px solid var(--stone);
    padding: 0.5rem var(--edge) 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    border-top: 1px solid var(--stone-soft);
  }

  .nav-links a,
  .nav-links .btn {
    display: flex;
    width: 100%;
    padding: 0.9rem 0.2rem;
  }

  .entity-card dl {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .stack-grid,
  .facts,
  .offer-strip,
  .case-metrics,
  .process-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}