/* Summit REI test site. Mobile first. */

:root {
  --navy: #104378;
  --orange: #F49E0C;
  --ink: #0F2236;          /* near-navy for body text */
  --gray: #5B6776;         /* restrained gray for secondary text */
  --line: #E3E6EA;         /* hairlines */
  --paper: #FFFFFF;
  --off: #F7F7F5;          /* off-white surface */

  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --gutter: 24px;
  --max: 1200px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); text-decoration-color: var(--orange); }

:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--navy); color: #fff; padding: 10px 14px; z-index: 10;
}
.skip:focus { left: 12px; top: 12px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

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

.site-header {
  position: sticky; top: 0; z-index: 5;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}

.brand {
  display: inline-flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--navy);
}
.brand:hover { color: var(--navy); }

.mark { width: 26px; height: 26px; flex: none; }

.wordmark {
  font-weight: 600; font-size: 17px; letter-spacing: -0.02em; line-height: 1;
}
.wordmark span { font-weight: 400; color: var(--gray); }

.nav { display: flex; gap: 20px; }
.nav a {
  font-size: 14px; color: var(--gray); text-decoration: none;
  position: relative; padding: 4px 0;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: var(--orange); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--navy); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav .nav-optional { display: none; }

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

.eyebrow {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--gray);
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 20px;
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--orange);
}

h1, h2, h3 { color: var(--navy); font-weight: 500; letter-spacing: -0.03em; margin: 0; }

h1 { font-size: clamp(40px, 10vw, 96px); line-height: 1.02; letter-spacing: -0.045em; }
h2 { font-size: clamp(28px, 5.4vw, 44px); line-height: 1.1; }
h3 { font-size: 18px; line-height: 1.35; letter-spacing: -0.01em; font-weight: 600; }

.lede { font-size: clamp(18px, 2.4vw, 22px); line-height: 1.55; color: var(--gray); max-width: 36ch; margin: 28px 0 0; }

p { margin: 0 0 1em; }

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

.hero { position: relative; padding: 88px 0 96px; overflow: hidden; }

.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: calc(100% / 4) 100%;
  opacity: .55;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
          mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
}

.hero .wrap { position: relative; }

.hero-orbit { display: none; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 44px; }

.btn {
  appearance: none; border: 1px solid var(--navy);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px;
  font: inherit; font-size: 15px; font-weight: 500; letter-spacing: -0.005em;
  border-radius: 999px; cursor: pointer; text-decoration: none;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn-solid { background: var(--navy); color: #fff; }
.btn-solid:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
.btn .arrow { transition: transform .25s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Sections ---------- */

.section { padding: 88px 0; border-top: 1px solid var(--line); }
.section-off { background: var(--off); }

.section-head { margin-bottom: 48px; max-width: 640px; }
.section-head p { color: var(--gray); margin-top: 18px; font-size: 17px; }

.index {
  font-family: var(--mono); font-size: 12px; color: var(--gray);
  letter-spacing: .06em; display: block; margin-bottom: 18px;
}

.list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.list li {
  display: grid; grid-template-columns: 1fr; gap: 6px;
  padding: 26px 0; border-bottom: 1px solid var(--line);
}
.list li p { margin: 0; color: var(--gray); }
.list .tag { font-family: var(--mono); font-size: 12px; color: var(--gray); letter-spacing: .06em; }

.steps { display: grid; gap: 40px; counter-reset: step; }
.step { border-top: 1px solid var(--navy); padding-top: 20px; }
.step p { color: var(--gray); margin: 10px 0 0; }

/* ---------- Contact / form ---------- */

.contact-grid { display: grid; gap: 56px; }

.form { display: grid; gap: 22px; }

.field { display: grid; gap: 8px; }
.field label { font-size: 13px; font-weight: 500; color: var(--navy); letter-spacing: .01em; }
.field input {
  width: 100%; min-height: 52px; padding: 0 16px;
  font: inherit; font-size: 16px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input::placeholder { color: #9AA3AE; }
.field input:hover { border-color: #C9CED5; }
.field input:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(16, 67, 120, .1); }
.field input[aria-invalid="true"] { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(244, 158, 12, .25); }
.field .error { font-size: 13px; color: var(--navy); min-height: 0; margin: 0; }
.field .error:empty { display: none; }

.consent {
  display: grid; grid-template-columns: 22px 1fr; gap: 14px; align-items: start;
  padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper);
}
.consent input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 20px; height: 20px; margin: 2px 0 0; cursor: pointer;
  border: 1.5px solid #AEB6C0; border-radius: 5px; background: #fff;
  display: grid; place-content: center;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.consent input[type="checkbox"]::after {
  content: ""; width: 10px; height: 6px; margin-top: -2px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(-45deg) scale(0); transition: transform .15s var(--ease);
}
.consent input[type="checkbox"]:checked { background: var(--navy); border-color: var(--navy); }
.consent input[type="checkbox"]:checked::after { transform: rotate(-45deg) scale(1); }
.consent label { font-size: 13.5px; line-height: 1.55; color: var(--ink); cursor: pointer; }
.consent .consent-kind {
  display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--gray); margin-bottom: 4px;
}

.form-legal {
  font-size: 13.5px; color: var(--gray); margin: 0;
  display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center;
}
.form-legal a { color: var(--navy); font-weight: 500; }

.form-submit { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.form-note { font-size: 13px; color: var(--gray); margin: 0; }

.confirm {
  display: none; padding: 22px; border-radius: 12px;
  border: 1px solid var(--line); border-left: 3px solid var(--orange); background: var(--paper);
}
.confirm.is-visible { display: block; animation: rise .5s var(--ease) both; }
.confirm h3 { margin-bottom: 6px; }
.confirm p { margin: 0; color: var(--gray); font-size: 15px; }

/* Identity block */

.identity { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--line); }
.identity div {
  display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--line);
}
.identity dt {
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--gray);
}
.identity dd { margin: 0; font-size: 16px; color: var(--ink); }
.ph {
  font-family: var(--mono); font-size: 14px; color: var(--navy);
  background: var(--off); border: 1px dashed #C9CED5; border-radius: 6px; padding: 2px 8px;
  display: inline-block;
}
a.ph { text-decoration: none; }
a.ph:hover { border-color: var(--orange); }

/* Disclaimer */

.disclaimer {
  border: 1px solid var(--line); border-radius: 14px; padding: 28px; background: var(--paper);
}
.disclaimer h2 { font-size: 20px; letter-spacing: -0.015em; font-weight: 600; margin-bottom: 14px; }
.disclaimer p { color: var(--gray); font-size: 15px; margin: 0 0 .8em; }
.disclaimer p:last-child { margin-bottom: 0; }
.disclaimer strong { color: var(--ink); font-weight: 600; }

/* ---------- Legal pages ---------- */

.doc-hero { padding: 72px 0 40px; }
.doc-hero h1 { font-size: clamp(38px, 8vw, 72px); }
.doc-meta { font-family: var(--mono); font-size: 12px; color: var(--gray); letter-spacing: .04em; margin-top: 22px; }

.doc { padding: 0 0 96px; }
.doc-layout { display: grid; gap: 40px; }

.toc { display: none; }

.prose { max-width: 680px; }
.prose section { padding: 36px 0; border-top: 1px solid var(--line); }
.prose h2 { font-size: 24px; letter-spacing: -0.02em; margin-bottom: 16px; font-weight: 600; }
.prose h3 { margin: 22px 0 8px; font-size: 16px; }
.prose p, .prose li { color: #2B3A4C; font-size: 16px; }
.prose ul { padding-left: 20px; margin: 0 0 1em; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--orange); }
.callout {
  border-left: 3px solid var(--orange); background: var(--off);
  padding: 16px 18px; border-radius: 0 10px 10px 0; margin: 18px 0;
}
.callout p:last-child { margin-bottom: 0; }

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

.site-footer { border-top: 1px solid var(--line); padding: 48px 0 40px; background: var(--paper); }
.footer-grid { display: grid; gap: 28px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 24px; list-style: none; margin: 0; padding: 0; }
.footer-links a { color: var(--gray); text-decoration: none; font-size: 14px; }
.footer-links a:hover { color: var(--navy); }
.fine { font-size: 13px; color: var(--gray); margin: 0; max-width: 70ch; }

/* ---------- Motion ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.reveal { opacity: 0; transform: translateY(12px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

.load { animation: rise .9s var(--ease) both; }
.load-2 { animation-delay: .08s; }
.load-3 { animation-delay: .16s; }
.load-4 { animation-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Tablet / desktop ---------- */

@media (min-width: 720px) {
  :root { --gutter: 40px; }
  .nav { gap: 28px; }
  .nav .nav-optional { display: inline; }
  .hero { padding: 128px 0 136px; }
  .section { padding: 120px 0; }
  .list li { grid-template-columns: 40px minmax(160px, 1fr) 2fr; gap: 24px; align-items: baseline; }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .identity div { grid-template-columns: 180px 1fr; align-items: baseline; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr auto; align-items: start; }
  .disclaimer { padding: 36px 40px; }
}

@media (min-width: 1024px) {
  :root { --gutter: 56px; }
  .hero { padding: 160px 0 168px; }
  .hero-grid { background-size: calc(100% / 12) 100%; opacity: .45; }
  .hero h1 { max-width: 13ch; }
  .hero-orbit {
    display: block; position: absolute; pointer-events: none;
    width: min(34vw, 460px); height: auto;
    right: max(56px, calc((100vw - var(--max)) / 2 + 56px)); top: 50%;
    transform: translateY(-50%);
    animation: fade 1.4s var(--ease) .3s both;
  }
  .split { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; }
  .split .section-head { position: sticky; top: 108px; align-self: start; }
  .contact-grid { grid-template-columns: 7fr 5fr; gap: 88px; align-items: start; }
  .contact-aside { position: sticky; top: 108px; }
  .doc-layout { grid-template-columns: 220px 1fr; gap: 80px; }
  .toc { display: block; position: sticky; top: 108px; align-self: start; }
  .toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
  .toc a {
    display: block; padding: 7px 0 7px 16px; margin-left: -1px;
    font-size: 13.5px; color: var(--gray); text-decoration: none; border-left: 1px solid transparent;
    transition: color .2s var(--ease), border-color .2s var(--ease);
  }
  .toc a:hover { color: var(--navy); border-left-color: var(--orange); }
}

@media (min-width: 1440px) {
  :root { --max: 1280px; }
}