/*
  Page-level components for the Sarah T. site. Built on tokens.css +
  base.css. Whitespace is generous and intentional — resist the urge
  to tighten these paddings when a section "looks empty."
*/

html {
  scroll-behavior: smooth;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ---------------------------------------------------------------
   Header
--------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-nav a {
  font-size: var(--fs-nav);
  letter-spacing: var(--tracking-nav);
  color: var(--color-ink-soft);
  transition: color var(--duration) var(--ease);
}

.site-nav a:hover {
  color: var(--color-ink);
}

.site-nav .btn {
  padding: var(--space-2) var(--space-4);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  color: var(--color-ink);
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

/* ---------------------------------------------------------------
   Utility
--------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------------------------------------
   Brand marquee — logo/wordmark strip, auto-scrolling
--------------------------------------------------------------- */
.brand-strip {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.brand-strip .eyebrow {
  display: block;
  text-align: center;
  margin-bottom: var(--space-4);
}

.brand-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.brand-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: brand-scroll 36s linear infinite;
}

.brand-track .brand-name {
  font-family: var(--font-sans);
  font-size: var(--fs-nav);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-nav);
  color: var(--color-ink-soft);
  white-space: nowrap;
  padding: 0 var(--space-5);
}

.brand-track .dot {
  color: var(--color-border-strong);
  font-size: 0.5rem;
}

@keyframes brand-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .brand-track {
    animation: none;
  }
  .brand-marquee {
    overflow-x: auto;
  }
}

/* ---------------------------------------------------------------
   Section rhythm
--------------------------------------------------------------- */
.section {
  padding: var(--space-8) 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-head {
  max-width: var(--max-width-narrow);
  margin-bottom: var(--space-6);
}

.section-head .eyebrow {
  display: block;
  margin-bottom: var(--space-3);
}

.eyebrow {
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

.section-lede {
  margin-top: var(--space-3);
  font-size: var(--fs-body-lg);
  max-width: var(--max-width-narrow);
  color: var(--color-ink-soft);
}

/* ---------------------------------------------------------------
   Prose block — short manifesto-style copy (e.g. "the unsexy truth")
--------------------------------------------------------------- */
.prose p {
  max-width: 62ch;
  margin-bottom: var(--space-4);
  font-size: var(--fs-body-lg);
  color: var(--color-ink-soft);
}

.prose p:last-child {
  margin-bottom: 0;
  color: var(--color-ink);
  font-weight: var(--fw-medium);
}

/* ---------------------------------------------------------------
   Hero
--------------------------------------------------------------- */
.hero {
  padding: var(--space-8) 0 var(--space-7);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-7);
  align-items: center;
}

.hero-copy {
  max-width: var(--max-width-narrow);
}

.hero h1 {
  margin-top: var(--space-3);
  margin-bottom: var(--space-4);
}

.hero-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-actions .btn-secondary {
  border-color: transparent;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

.hero-actions .btn-secondary:hover {
  background: transparent;
  color: var(--color-ink-soft);
  border-color: transparent;
}

.hero-score-link {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 2px;
}

.hero-score-link:hover {
  color: var(--color-ink);
  border-color: var(--color-ink-soft);
}

/* ---------------------------------------------------------------
   "Is this you" — checklist
--------------------------------------------------------------- */
.identifiers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4) var(--space-6);
  max-width: var(--max-width);
}

.identifier {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border);
}

.identifier .mark {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
}

.identifier p {
  color: var(--color-ink);
  font-size: var(--fs-body);
}

/* ---------------------------------------------------------------
   Engagement tiers
--------------------------------------------------------------- */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.tier-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
}

.tier-card .tag {
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-3);
}

.tier-card h3 {
  margin-bottom: var(--space-2);
}

.tier-card p {
  font-size: var(--fs-small);
  margin-bottom: var(--space-4);
}

.check-list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  flex-grow: 1;
}

.check-list li {
  position: relative;
  padding-left: var(--space-4);
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
  margin-bottom: var(--space-2);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-border-strong);
}

.check-list li.best-for {
  color: var(--color-ink-faint);
  font-style: italic;
}

.check-list li.best-for::before {
  display: none;
}

.check-list li.best-for {
  padding-left: 0;
}

.tier-card .tier-link {
  margin-top: auto;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.tier-card.featured {
  border-color: var(--color-ink);
  box-shadow: var(--shadow-md);
}

/* ---------------------------------------------------------------
   Proof / case studies
--------------------------------------------------------------- */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.proof-card {
  padding: var(--space-5) 0 0;
  border-top: 1px solid var(--color-border-strong);
}

.proof-card .tag {
  display: block;
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-3);
}

.proof-card h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: var(--fw-regular);
  color: var(--color-ink);
  margin-bottom: var(--space-3);
  line-height: var(--lh-snug);
}

.proof-card p {
  font-size: var(--fs-small);
  margin-bottom: var(--space-4);
}

.proof-card .client {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

/* ---------------------------------------------------------------
   About
--------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: start;
}

.about-photo {
  aspect-ratio: 4 / 5;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-copy p {
  max-width: 60ch;
  margin-bottom: var(--space-4);
  font-size: var(--fs-body-lg);
}

.about-copy p:last-child {
  margin-bottom: 0;
}

.about-links {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.about-links a {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-ink-soft);
}

.about-links a:hover {
  color: var(--color-ink);
}

/* ---------------------------------------------------------------
   Dark bands — the deliberate dark moments on the page (Deep Dive
   explainer + final CTA). Kept to two so the contrast stays a
   signal, not a pattern.
--------------------------------------------------------------- */
.contact-band,
.diagnose-band {
  background: var(--color-bg-inverse);
  color: var(--color-white);
}

.contact-band .eyebrow,
.diagnose-band .eyebrow {
  color: var(--brand-teal);
}

.contact-band a.text-link,
.diagnose-band a.text-link {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-nav);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 2px;
}

.contact-band a.text-link:hover,
.diagnose-band a.text-link:hover {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.contact-band {
  padding: var(--space-8) 0;
  text-align: center;
}

.contact-band h2 {
  font-family: var(--font-serif);
  font-size: var(--fs-h2-display);
  font-weight: var(--fw-regular);
  color: var(--color-white);
  max-width: 34ch;
  margin: var(--space-3) auto var(--space-4);
}

.contact-band p.lede {
  max-width: 46ch;
  margin: 0 auto var(--space-5);
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--fs-body-lg);
}

.contact-band p.footnote {
  margin: var(--space-4) auto 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-small);
}

.contact-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------
   Deep Dive explainer band
--------------------------------------------------------------- */
.diagnose-band {
  padding: var(--space-8) 0;
}

.diagnose-band h2 {
  font-family: var(--font-sans);
  font-size: var(--fs-h2-display);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  max-width: 22ch;
  line-height: var(--lh-tight);
  margin: var(--space-3) 0 var(--space-5);
}

.diagnose-band h2 .accent {
  color: var(--brand-coral);
}

.diagnose-band .prose p {
  color: rgba(255, 255, 255, 0.78);
}

.diagnose-band .prose p:last-child {
  color: var(--color-white);
}

.diagnose-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5) var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  max-width: 560px;
}

.diagnose-facts .num {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
}

.diagnose-facts .label {
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.6);
}

.diagnose-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

/* ---------------------------------------------------------------
   Footer — light, minimal, no repeat of the dark band
--------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0 var(--space-5);
}

.site-footer .container {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-nav {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
}

.footer-nav a:hover {
  color: var(--color-ink);
}

.footer-meta {
  font-size: var(--fs-caption);
  color: var(--color-ink-faint);
  margin-top: var(--space-3);
}

/* ---------------------------------------------------------------
   Responsive
--------------------------------------------------------------- */
@media (max-width: 900px) {
  .tier-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .identifiers {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    max-width: 220px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-photo {
    max-width: 280px;
  }

  .diagnose-facts {
    grid-template-columns: 1fr 1fr;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .diagnose-facts {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: fixed;
    inset: 64px var(--space-4) auto var(--space-4);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    gap: var(--space-3);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
  }

  .site-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav a {
    padding: var(--space-2) 0;
  }

  .site-nav .btn {
    margin-top: var(--space-2);
  }
}