/* Bike Fixer — Website #105
   Bike Repair Shop × Service-Tag Utility Modernism
   Fully offline. HTML + CSS only. */

:root {
  --warm: #f7f4ed;
  --paper: #fbf9f4;
  --graphite: #282b2c;
  --orange: #de6a2f;
  --steel: #899399;
  --green: #315646;
  --blue: #b8cfda;
  --blue-deep: #526f7e;
  --line: rgba(40,43,44,.14);
  --sans: Arial, Helvetica, sans-serif;
  --mono: "Courier New", Courier, monospace;
  --shadow: 0 18px 44px rgba(28,34,36,.09);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--graphite);
  background:
    linear-gradient(180deg, rgba(222,106,47,.04), transparent 18rem),
    var(--warm);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 999;
  padding: .7rem 1rem;
  background: var(--graphite);
  color: var(--paper);
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.shell {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 5rem 0;
  scroll-margin-top: 7rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(247,244,237,.95);
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: grid;
  text-decoration: none;
  line-height: 1;
}

.brand-main {
  font-size: 1.16rem;
  font-weight: 900;
  letter-spacing: -.015em;
  text-transform: uppercase;
}

.brand-sub {
  margin-top: .25rem;
  color: var(--orange);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .11em;
}

.main-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
}

.main-nav a,
.footer-nav a {
  text-decoration: none;
  font-size: .78rem;
  letter-spacing: .04em;
}

.main-nav a {
  padding: .45rem 0;
  border-bottom: 1px solid transparent;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--orange);
  border-color: currentColor;
}

.hero {
  padding: 4.7rem 0 5.4rem;
  scroll-margin-top: 7rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
}

.eyebrow {
  margin: 0 0 .8rem;
  color: var(--orange);
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.service-ref {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .75rem;
  align-items: center;
  max-width: 580px;
  margin-bottom: 1rem;
  color: var(--steel);
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .08em;
}

.service-rule {
  height: 1px;
  background: var(--line);
}

h1,
h2,
h3 { margin-top: 0; }

h1,
h2 {
  font-weight: 900;
  letter-spacing: -.055em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin-bottom: 1.3rem;
  font-size: clamp(3.45rem, 7.1vw, 6.8rem);
  line-height: .93;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.3rem, 4.8vw, 4.1rem);
  line-height: .97;
}

h3 {
  margin-bottom: .45rem;
  font-size: 1.35rem;
}

p {
  margin-top: 0;
  color: #5e6263;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 1.8rem;
  font-size: 1.04rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .82rem 1.3rem;
  border: 1px solid var(--green);
  background: var(--green);
  color: var(--paper);
  text-decoration: none;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease;
}

.cta:hover,
.cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(49,86,70,.18);
}

.hero-note {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: .9rem;
  max-width: 560px;
  margin-top: 2rem;
}

.bolt-glyph {
  position: relative;
  width: 42px;
  height: 42px;
  border: 3px solid var(--orange);
  border-radius: 50%;
}

.bolt-glyph::before {
  content: "";
  position: absolute;
  inset: 10px;
  background: var(--orange);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
}

.hero-note p {
  margin-bottom: 0;
  font-family: var(--mono);
  font-size: .75rem;
}

.hero-visual {
  position: relative;
  min-height: 530px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(184,207,218,.14), transparent 58%),
    var(--paper);
  box-shadow: var(--shadow);
}

.mechanical-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(40,43,44,.04) 1px, transparent 1px) 0 0 / 34px 34px,
    linear-gradient(90deg, rgba(40,43,44,.04) 1px, transparent 1px) 0 0 / 34px 34px;
}

.service-ticket {
  position: absolute;
  left: 30px;
  top: 30px;
  width: 250px;
  padding: 1rem;
  border: 1px solid var(--graphite);
  background: rgba(247,244,237,.94);
}

.ticket-head {
  display: flex;
  justify-content: space-between;
  gap: .7rem;
  margin-bottom: .6rem;
  color: var(--orange);
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .08em;
}

.ticket-code {
  color: var(--paper);
  background: var(--graphite);
  padding: .1rem .35rem;
}

.service-ticket strong,
.service-ticket small {
  display: block;
}

.service-ticket strong {
  font-size: 1rem;
  letter-spacing: .05em;
}

.service-ticket small {
  margin-top: .25rem;
  color: var(--steel);
  font-family: var(--mono);
  font-size: .56rem;
}

.checklist {
  display: grid;
  gap: .45rem;
  margin-top: 1rem;
}

.checklist div {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  gap: .5rem;
  align-items: center;
}

.check-box {
  width: 14px;
  height: 14px;
  border: 2px solid var(--green);
}

.checklist i {
  height: 1px;
  background: var(--line);
}

.checklist em {
  color: var(--steel);
  font-family: var(--mono);
  font-size: .52rem;
  font-style: normal;
}

.bolt {
  position: absolute;
  border: 4px solid var(--graphite);
  border-radius: 50%;
  background: var(--paper);
}

.bolt span {
  position: absolute;
  inset: 18%;
  background: var(--steel);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
}

.bolt-large {
  right: 48px;
  top: 60px;
  width: 110px;
  height: 110px;
}

.bolt-small {
  right: 74px;
  bottom: 58px;
  width: 66px;
  height: 66px;
  border-color: var(--green);
}

.chain-row {
  position: absolute;
  left: 74px;
  bottom: 68px;
}

.chain-link {
  position: absolute;
  width: 62px;
  height: 28px;
  border: 2px solid var(--green);
  border-radius: 999px;
}

.cl-a {
  left: 0;
  top: 10px;
  transform: rotate(-16deg);
}

.cl-b {
  left: 42px;
  top: -8px;
  transform: rotate(16deg);
}

.cl-c {
  left: 84px;
  top: 10px;
  transform: rotate(-16deg);
}

.spoke-wheel {
  position: absolute;
  right: 38px;
  top: 205px;
  width: 160px;
  height: 160px;
  border: 3px solid var(--blue-deep);
  border-radius: 50%;
}

.hub {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 28px;
  height: 28px;
  border: 4px solid var(--orange);
  border-radius: 50%;
  background: var(--paper);
  transform: translate(-50%, -50%);
  z-index: 2;
}

.spoke {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1px;
  height: 78px;
  background: var(--steel);
  transform-origin: bottom;
}

.sp1 { transform: translate(-50%, -100%) rotate(0deg); }
.sp2 { transform: translate(-50%, -100%) rotate(45deg); }
.sp3 { transform: translate(-50%, -100%) rotate(90deg); }
.sp4 { transform: translate(-50%, -100%) rotate(135deg); }

.serial-label {
  position: absolute;
  left: 30px;
  bottom: 26px;
  padding: .5rem .7rem;
  background: var(--graphite);
  color: var(--paper);
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .07em;
}

.about-section {
  background:
    linear-gradient(90deg, rgba(137,147,153,.09), transparent 34%),
    #fbfaf6;
}

.about-grid {
  display: grid;
  grid-template-columns: 70px .9fr 1.1fr;
  gap: clamp(1.8rem, 4vw, 4rem);
  align-items: start;
}

.section-index {
  color: var(--steel);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
}

.about-copy {
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}

.about-copy p { font-size: 1.02rem; }

.section-heading {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: clamp(1.8rem, 4vw, 4rem);
  margin-bottom: 2rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.workshop-card {
  position: relative;
  min-height: 325px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .95rem 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--steel);
  font-family: var(--mono);
  font-size: .62rem;
}

.card-bolt {
  width: 24px;
  height: 24px;
  border: 4px solid;
  border-radius: 50%;
}

.card-bolt.orange { border-color: var(--orange); }
.card-bolt.green { border-color: var(--green); }
.card-bolt.blue { border-color: var(--blue-deep); }

.card-band {
  min-height: 68px;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  color: var(--paper);
  font-size: 1.28rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.band-orange { background: var(--orange); }
.band-green { background: var(--green); }
.band-blue { background: var(--blue-deep); }

.card-copy {
  padding: 1.4rem 1rem .8rem;
}

.card-copy h3 {
  font-size: 1.35rem;
  font-weight: 900;
  text-transform: uppercase;
}

.card-checks {
  display: flex;
  gap: .4rem;
  padding: 0 1rem;
}

.card-checks i {
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  position: relative;
}

.card-checks i::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(40deg);
}

.card-foot {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding-top: .7rem;
  border-top: 1px solid var(--line);
  color: var(--steel);
  font-family: var(--mono);
  font-size: .58rem;
}

.process-section {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.process-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(40,43,44,.035) 1px, transparent 1px) 0 0 / 30px 30px,
    linear-gradient(90deg, rgba(40,43,44,.035) 1px, transparent 1px) 0 0 / 30px 30px,
    #eeefec;
}

.process-heading {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: clamp(1.8rem, 4vw, 4rem);
  max-width: 860px;
  margin-bottom: 3rem;
}

.process-heading p:last-child { max-width: 700px; }

.process-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.process-step {
  position: relative;
  min-height: 190px;
  padding: 1.2rem;
  border: 1px solid var(--line);
  background: rgba(251,249,244,.86);
}

.process-no {
  display: block;
  margin-bottom: 1rem;
  color: var(--orange);
  font-family: var(--mono);
  font-size: .64rem;
}

.process-check {
  position: relative;
  display: block;
  width: 42px;
  height: 42px;
  margin-bottom: 1rem;
  border: 3px solid var(--green);
}

.process-check::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 5px;
  width: 8px;
  height: 18px;
  border-right: 3px solid var(--orange);
  border-bottom: 3px solid var(--orange);
  transform: rotate(40deg);
}

.process-step strong {
  display: block;
  font-size: 1.1rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.process-line {
  display: block;
  width: 58px;
  height: 3px;
  margin-top: .75rem;
  background: var(--blue-deep);
}

.process-step small {
  position: absolute;
  left: 1.2rem;
  bottom: 1rem;
  color: var(--steel);
  font-family: var(--mono);
  font-size: .58rem;
}

.process-chain {
  position: absolute;
  right: 5%;
  top: 10%;
  opacity: .17;
}

.process-chain span {
  position: absolute;
  width: 64px;
  height: 28px;
  border: 3px solid var(--green);
  border-radius: 999px;
}

.process-chain span:nth-child(1) {
  right: 76px;
  top: 12px;
  transform: rotate(-14deg);
}

.process-chain span:nth-child(2) {
  right: 36px;
  top: 0;
  transform: rotate(14deg);
}

.process-chain span:nth-child(3) {
  right: -4px;
  top: 12px;
  transform: rotate(-14deg);
}

.process-stripe {
  position: absolute;
  right: 0;
  height: 6px;
  opacity: .42;
}

.ps-one {
  top: 82px;
  width: 34%;
  background: var(--orange);
}

.ps-two {
  bottom: 76px;
  width: 48%;
  background: var(--blue-deep);
}

.closing-section { background: #f0eee9; }

.closing-grid {
  display: grid;
  grid-template-columns: 1fr minmax(330px, .8fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
}

.closing-copy { max-width: 700px; }

.closing-art {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

.closing-card {
  position: absolute;
  left: 26px;
  top: 26px;
  width: 220px;
  padding: 1rem;
  border: 1px solid var(--graphite);
  background: rgba(247,244,237,.94);
}

.closing-card span,
.closing-card strong,
.closing-card small { display: block; }

.closing-card span,
.closing-card small {
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .08em;
}

.closing-card span { color: var(--orange); }

.closing-card strong {
  margin: .25rem 0;
  font-size: 1rem;
  letter-spacing: .06em;
}

.closing-bolt {
  position: absolute;
  right: 48px;
  top: 42px;
  width: 104px;
  height: 104px;
  border: 5px solid var(--green);
  border-radius: 50%;
}

.closing-bolt span {
  position: absolute;
  inset: 24px;
  background: var(--steel);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
}

.closing-checklist {
  position: absolute;
  right: 44px;
  bottom: 44px;
  display: grid;
  gap: .4rem;
}

.closing-checklist i {
  width: 90px;
  height: 14px;
  border-left: 4px solid var(--orange);
  border-bottom: 1px solid var(--line);
}

.closing-chain {
  position: absolute;
  width: 54px;
  height: 24px;
  border: 2px solid var(--green);
  border-radius: 999px;
}

.cc1 {
  left: 40px;
  bottom: 38px;
  transform: rotate(-14deg);
}

.cc2 {
  left: 78px;
  bottom: 24px;
  transform: rotate(14deg);
}

.closing-line {
  position: absolute;
  left: 38px;
  height: 5px;
}

.cl1 {
  bottom: 80px;
  width: 36%;
  background: var(--orange);
}

.cl2 {
  bottom: 98px;
  width: 22%;
  background: var(--blue-deep);
}

.legal-section { background: #e3e0da; }

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

.legal-card {
  padding: 2rem;
  border: 1px solid var(--line);
  background: rgba(251,249,244,.68);
}

.legal-card h2 {
  font-size: clamp(2rem, 3.4vw, 3rem);
  text-transform: none;
  letter-spacing: -.03em;
}

.legal-card p:last-child { margin-bottom: 0; }

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  background: #e3e0da;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
}

.footer-brand {
  display: grid;
  gap: .15rem;
}

.footer-brand strong {
  font-size: 1rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.footer-brand span {
  color: var(--orange);
  font-family: var(--mono);
  font-size: .6rem;
}

@media (max-width: 980px) {
  .header-inner {
    min-height: auto;
    padding: 1rem 0;
    align-items: flex-start;
    flex-direction: column;
    gap: .7rem;
  }

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

  .hero-visual { min-height: 450px; }

  .about-grid { grid-template-columns: 56px 1fr; }
  .about-copy { grid-column: 2; }

  .service-grid { grid-template-columns: 1fr; }
  .workshop-card { min-height: 245px; }

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

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

@media (max-width: 700px) {
  .shell { width: min(100% - 28px, 1160px); }
  .section { padding: 4rem 0; }

  h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  h2 { font-size: clamp(2.1rem, 10vw, 3rem); }

  .hero { padding-top: 3rem; }

  .service-ref { grid-template-columns: 1fr; }
  .service-rule { display: none; }

  .hero-visual { min-height: 380px; }

  .service-ticket {
    left: 20px;
    top: 20px;
    width: 190px;
  }

  .bolt-large {
    right: 24px;
    top: 44px;
    width: 82px;
    height: 82px;
  }

  .spoke-wheel {
    right: 24px;
    top: 178px;
    width: 120px;
    height: 120px;
  }

  .spoke { height: 58px; }

  .about-grid,
  .section-heading,
  .process-heading {
    grid-template-columns: 1fr;
    gap: .8rem;
  }

  .about-copy { grid-column: auto; }

  .process-grid { grid-template-columns: 1fr; }
  .process-step { min-height: 145px; }

  .process-chain {
    right: -18px;
    top: 18px;
    transform: scale(.74);
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .main-nav {
    display: grid;
    grid-template-columns: repeat(3, auto);
    justify-content: start;
    gap: .55rem 1rem;
  }

  .main-nav a { font-size: .72rem; }

  .hero-visual { min-height: 350px; }

  .service-ticket {
    max-width: 64%;
    padding: .8rem;
  }

  .chain-row { opacity: .6; }

  .closing-card {
    left: 18px;
    top: 18px;
    max-width: 62%;
  }

  .closing-bolt { right: 24px; }

  .legal-card,
  .process-panel {
    padding: 1.35rem;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}