/* =========================================================
   Concierge — landing page styles
   Editorial-Carbon: refined minimalism, cool palette,
   IBM Plex Serif + Sans + Mono, sharp corners, hairline rules.
   ========================================================= */

:root {
  /* Palette — cool, no warm tints, no dark mode */
  --page:       #F4F4F4;   /* page background */
  --surface:    #FFFFFF;   /* card / form surfaces */
  --ink:        #161616;   /* primary text */
  --ink-soft:   #2A2A2A;   /* body weight */
  --slate:      #525252;   /* secondary text */
  --slate-2:    #6F6F6F;
  --hairline:   #DDE1E6;   /* dividers, borders */
  --hairline-2: #C6C6C6;   /* slightly stronger */
  --accent:     #0043CE;   /* deep cobalt — Carbon blue 70 */
  --accent-2:   #002D9C;   /* hover/press */
  --accent-wash:#EDF2FF;   /* very light accent tint */

  /* Type */
  --serif:  "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --sans:   "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono:   "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Rhythm */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  --container: 1240px;

  /* Editorial accents */
  --rule: 1px solid var(--hairline);
}

/* ---------- Reset & base ---------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "kern";
}

img, svg { display: block; max-width: 100%; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 120ms ease;
}
a:hover { color: var(--accent); }

button { font: inherit; cursor: pointer; }

::selection { background: var(--accent); color: #fff; }

/* ---------- Layout primitives ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- Header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 244, 244, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: var(--rule);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.125rem;
  letter-spacing: 0.005em;
}
.wordmark .mark {
  width: 18px;
  height: 18px;
  color: var(--ink);
  transition: color 120ms ease, transform 240ms ease;
}
.wordmark:hover .mark { color: var(--accent); transform: rotate(45deg); }

.site-nav {
  display: none;
  gap: 1.5rem;
  align-items: center;
  font-size: 0.9375rem;
}
.site-nav a {
  text-decoration: none;
  color: var(--slate);
  padding-block: 0.25rem;
}
.site-nav a:hover { color: var(--ink); }
.site-nav .nav-cta {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.15rem;
}
.site-nav .nav-cta:hover { color: var(--accent); border-bottom-color: var(--accent); }

@media (min-width: 768px) {
  .site-nav { display: inline-flex; }
}

/* ---------- Type ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin: 0 0 var(--space-5);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.eyebrow-num { color: var(--ink); }
.eyebrow-sep { color: var(--hairline-2); }

.display {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.5rem, 7.5vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-6);
  color: var(--ink);
}
.display em {
  font-style: italic;
  font-weight: 400;
  color: var(--ink-soft);
}

.heading {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.6vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-5);
  color: var(--ink);
  max-width: 22ch;
}

.lede {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.0625rem, 1.8vw, 1.3125rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 var(--space-6);
}

.lede-narrow {
  font-family: var(--serif);
  font-size: 1.1875rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 50ch;
  margin: 0 0 var(--space-5);
}

.section-lede {
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--slate);
  max-width: 55ch;
  margin: 0;
}

.mono { font-family: var(--mono); font-size: 0.9em; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1;
  padding: 0.95rem 1.25rem;
  border: 1px solid transparent;
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-2); color: #fff; }
.btn-primary:active { transform: translateY(1px); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

.btn-block { width: 100%; justify-content: center; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6.5rem) clamp(3.5rem, 9vw, 7rem);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0) 70%),
    var(--page);
  border-bottom: var(--rule);
  overflow: hidden;
}

.hero::before {
  /* Subtle thin vertical rule, editorial flourish */
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, transparent calc(50% - 0.5px), var(--hairline) calc(50% - 0.5px), var(--hairline) calc(50% + 0.5px), transparent calc(50% + 0.5px));
  background-size: 25% 100%;
  background-repeat: no-repeat;
  background-position: 12.5% 0;
  opacity: 0.55;
  pointer-events: none;
}
@media (max-width: 767px) { .hero::before { display: none; } }

.hero-inner {
  position: relative;
  max-width: 980px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: var(--space-8);
}

.hero-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem 2rem;
  margin: 0;
  padding-top: var(--space-5);
  border-top: var(--rule);
}
.hero-meta div { display: block; }
.hero-meta dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-2);
  margin-bottom: 0.25rem;
}
.hero-meta dd {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--ink);
}

@media (min-width: 640px) {
  .hero-meta { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(8px);
  animation: reveal 600ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  animation-delay: var(--d, 0ms);
}
@keyframes reveal {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; transform: none; }
}

/* ---------- Promise pullquote ---------- */

.promise {
  background: var(--surface);
  border-bottom: var(--rule);
  padding-block: clamp(3rem, 7vw, 5.5rem);
}
.pull {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.75rem, 4.2vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.005em;
  color: var(--ink);
  max-width: 28ch;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.pull-marks {
  display: inline-block;
  color: var(--accent);
  font-family: var(--serif);
  font-style: normal;
  font-weight: 500;
}
.pull-marks-open { margin-right: 0.1em; }
.pull-marks-close { margin-left: 0.05em; }

/* ---------- Generic sections ---------- */

.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  border-bottom: var(--rule);
  background: var(--page);
}
.section-alt { background: var(--surface); }

.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .section-grid {
    grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.section-head { max-width: 32rem; }

/* ---------- Steps (How it works) ---------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--rule);
}
.steps li {
  padding: var(--space-6) 0 var(--space-6);
  border-bottom: var(--rule);
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--space-6);
  row-gap: 0.5rem;
  align-items: baseline;
}
.steps li:last-child { border-bottom: none; }

.step-num {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
  align-self: start;
  padding-top: 0.35rem;
}

.step-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--ink);
}
.steps li p {
  grid-column: 2;
  margin: 0;
  color: var(--slate);
  max-width: 52ch;
}

/* ---------- Cards (Examples) ---------- */

.cards {
  list-style: none;
  margin: var(--space-7) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--rule);
  border-left: var(--rule);
}
.card {
  padding: var(--space-6);
  background: var(--surface);
  border-right: var(--rule);
  border-bottom: var(--rule);
  position: relative;
  transition: background-color 160ms ease;
}
.card:hover { background: var(--accent-wash); }
.card:hover .card-label { color: var(--accent); }

.card-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--slate);
  margin: 0 0 var(--space-3);
  transition: color 160ms ease;
}
.card-text {
  font-family: var(--serif);
  font-size: 1.1875rem;
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 var(--space-4);
  max-width: 36ch;
}
.card-meta {
  font-family: var(--sans);
  font-size: 0.875rem;
  color: var(--slate-2);
  margin: 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--hairline);
}

@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Fence section ---------- */

.fence-section { background: var(--surface); }

.fence-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 1024px) {
  .fence-grid {
    grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.fence-body { max-width: 56ch; }

.checks {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  border-top: var(--rule);
}
.checks li {
  padding: 1rem 0;
  border-bottom: var(--rule);
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 1.0625rem;
  color: var(--ink);
}
.check {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1.25rem;
  text-align: center;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  border-radius: 0;
}
.footnote {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--slate);
  margin: var(--space-5) 0 0;
}

/* ---------- Audience ---------- */

.audience {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--rule);
}
.audience li {
  padding: var(--space-6) 0;
  border-bottom: var(--rule);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}
.audience li:last-child { border-bottom: none; }
.audience h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.25rem;
  margin: 0;
}
.audience p {
  margin: 0;
  color: var(--slate);
  max-width: 52ch;
}

@media (min-width: 768px) {
  .audience li {
    grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: baseline;
  }
}

/* ---------- Access form ---------- */

.access-section { background: var(--page); }
.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}
@media (min-width: 1024px) {
  .access-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 26rem);
    gap: var(--space-8);
    align-items: start;
  }
}

.access-form {
  background: var(--surface);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: var(--rule);
  display: grid;
  gap: 1rem;
}

.field { display: grid; gap: 0.4rem; }
.field-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate);
}
.field-optional { text-transform: none; letter-spacing: 0; color: var(--slate-2); }

.field input, .field textarea {
  font: inherit;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--page);
  border: 1px solid var(--hairline-2);
  padding: 0.85rem 0.9rem;
  width: 100%;
  border-radius: 0;
  transition: border-color 120ms ease, background-color 120ms ease;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 2px var(--accent-wash);
}

.form-footnote {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--slate-2);
}

/* ---------- Thanks page ---------- */

.thanks {
  padding-block: clamp(4rem, 12vw, 9rem);
  border-bottom: var(--rule);
  background: var(--page);
}
.thanks-inner {
  max-width: 720px;
}
.thanks .lede { margin-bottom: var(--space-7); }

/* Netlify honeypot — invisible to humans, present in DOM for bots */
.hp-field {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Netlify replaces this div with a reCAPTCHA v2 widget once enabled in the dashboard */
.recaptcha {
  margin-block: 0.25rem;
  min-height: 1px;
}
.recaptcha:not(:empty) { margin-block: 0.5rem 0.25rem; }

/* ---------- FAQ ---------- */

.faq-section { background: var(--surface); }

.faq {
  margin: var(--space-6) 0 0;
  border-top: var(--rule);
}
.faq > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding: var(--space-5) 0;
  border-bottom: var(--rule);
}
.faq dt {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.1875rem;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.faq dd {
  margin: 0;
  color: var(--slate);
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.6;
}

@media (min-width: 1024px) {
  .faq > div {
    grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
    gap: var(--space-7);
    align-items: baseline;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--page);
  border-top: var(--rule);
  padding-block: var(--space-7);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: end;
}
.wordmark-footer .mark { width: 16px; height: 16px; }
.wordmark-footer { font-size: 1rem; }

.footer-tag {
  font-family: var(--serif);
  font-style: italic;
  margin: 0.4rem 0 0;
  color: var(--slate);
  font-size: 0.9375rem;
}

.footer-right {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--slate);
  text-align: left;
}
.footer-meta { margin: 0.25rem 0; }
.footer-meta a { color: var(--slate); }
.footer-meta a:hover { color: var(--accent); }

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
  .footer-right { text-align: right; }
}

/* ---------- Focus / a11y ---------- */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Skip glaring focus on hero CTA (custom shadow already used) */
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}