/* ==========================================================================
   RenTrip.org — style.css
   Version 0.1

   Contents
   1.  Design tokens
   2.  Reset & base
   3.  Layout primitives  (container, section, grid, split)
   4.  Typography helpers (eyebrow, section headings, links)
   5.  Components         (buttons, badges, cards, features, icons)
   6.  Header & navigation
   7.  Hero
   8.  Footer
   9.  Responsive breakpoints
   10. Motion & print preferences
   ========================================================================== */


/* 1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand colours — change these to rebrand the whole site */
  --color-primary:        #0f6e5c;
  --color-primary-strong: #0b5749;
  --color-primary-soft:   #e3f0eb;
  --color-accent:         #e08a3c;
  --color-accent-soft:    #fbeedf;

  /* Surfaces & text */
  --color-bg:        #f7f4ee;
  --color-surface:   #ffffff;
  --color-surface-2: #fffdf9;
  --color-ink:       #0e1a17;
  --color-text:      #1c2b27;
  --color-muted:     #55665f;
  --color-border:    #e2ddd1;
  --color-border-soft: #eeeae0;
  --color-on-dark:   #eef3f0;
  --color-on-dark-muted: #b3c6bf;

  /* Focus */
  --color-focus: #0b5749;

  /* Typography — system stack only, no web fonts to download */
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --text-xs:   0.8125rem;
  --text-sm:   0.9375rem;
  --text-base: 1.0625rem;
  --text-lg:   1.1875rem;
  --text-xl:   clamp(1.35rem, 1.1rem + 0.9vw, 1.6rem);
  --text-2xl:  clamp(1.75rem, 1.3rem + 1.9vw, 2.5rem);
  --text-3xl:  clamp(2.25rem, 1.5rem + 3.4vw, 3.6rem);

  --leading-tight: 1.15;
  --leading-snug:  1.35;
  --leading-body:  1.65;

  /* Spacing scale */
  --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;

  /* Shape */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(14, 26, 23, .05);
  --shadow-md: 0 6px 20px -8px rgba(14, 26, 23, .18);
  --shadow-lg: 0 18px 44px -22px rgba(14, 26, 23, .35);

  /* Layout */
  --container-max: 1120px;
  --container-pad: var(--space-5);
  --header-height: 4.25rem;

  --transition: 160ms ease;
}


/* 2. Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p { margin: 0 0 var(--space-4); }
p:last-child { margin-bottom: 0; }

ul { margin: 0; padding: 0; }
li { list-style: none; }

a {
  color: var(--color-primary-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-primary); }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
}

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

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  background: var(--color-ink);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-4); color: #fff; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}


/* 3. Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section { padding-block: var(--space-8); }

.section--alt {
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-border-soft);
}

.section--dark {
  background: var(--color-ink);
  color: var(--color-on-dark);
  background-image:
    radial-gradient(60% 90% at 12% 0%, rgba(15, 110, 92, .45), transparent 60%),
    radial-gradient(50% 80% at 92% 12%, rgba(224, 138, 60, .22), transparent 60%);
}
.section--dark h2,
.section--dark h3 { color: #fff; }
.section--dark .eyebrow { color: var(--color-accent); }
.section--dark .section__lead { color: var(--color-on-dark-muted); }

.section__head { max-width: 62ch; margin-bottom: var(--space-7); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__foot {
  margin-top: var(--space-6);
  color: var(--color-muted);
  font-size: var(--text-sm);
}
.section__foot--onDark { color: var(--color-on-dark-muted); text-align: center; }

.grid { display: grid; gap: var(--space-5); grid-template-columns: 1fr; }

.split {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr;
  align-items: start;
}
.split__text { max-width: 56ch; }


/* 4. Typography helpers
   -------------------------------------------------------------------------- */
.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section__title { font-size: var(--text-2xl); }

.section__lead {
  max-width: 62ch;
  color: var(--color-muted);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
}
.section__head--center .section__lead { margin-inline: auto; }

.text-accent { color: var(--color-primary); }

.link-arrow {
  font-weight: 650;
  text-decoration: none;
  border-bottom: 2px solid var(--color-primary-soft);
  padding-bottom: 2px;
}
.link-arrow:hover { border-bottom-color: var(--color-primary); }


/* 5. Components
   -------------------------------------------------------------------------- */

/* 5.1 Icons */
.icon,
.card__icon svg,
.feature__icon svg,
.brand__mark svg {
  width: 1.25em;
  height: 1.25em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

/* 5.2 Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font: inherit;
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn--primary:hover { background: var(--color-primary-strong); color: #fff; }

.btn--ghost {
  background: transparent;
  color: var(--color-primary-strong);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary-strong);
}

.btn--sm { padding: 0.55rem 1rem; font-size: var(--text-sm); }

/* 5.3 Badges */
.badge {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  font-size: var(--text-xs);
  font-weight: 650;
  letter-spacing: .01em;
}
.badge--accent { background: var(--color-accent-soft); color: #8a4d12; }
.card--onDark .badge { background: rgba(255, 255, 255, .12); color: var(--color-on-dark); }

/* 5.4 Cards */
.card-list { margin: 0; padding: 0; }

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition);
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-2);
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  font-size: 1.1rem;
}

.card__title { margin: 0; font-size: var(--text-xl); letter-spacing: -0.01em; }
.card__text { margin: 0; color: var(--color-muted); font-size: var(--text-sm); }
.card__action { margin: var(--space-3) 0 0; }

.card--cta { background: var(--color-primary-soft); border-color: transparent; }
.card--onDark {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  box-shadow: none;
}
.card--onDark:hover { border-color: rgba(255, 255, 255, .3); box-shadow: none; }
.card--onDark .card__text { color: var(--color-on-dark-muted); }

/* 5.5 Feature list */
.feature-list { display: grid; gap: var(--space-4); }

.feature {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: #8a4d12;
  flex: none;
}
.feature__title { margin: 0 0 2px; font-size: var(--text-base); }
.feature__text { margin: 0; color: var(--color-muted); font-size: var(--text-sm); }


/* 6. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 238, .9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.is-stuck {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand__mark {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
}
.brand__mark svg { width: 1.4rem; height: 1.4rem; }
.brand__tld { color: var(--color-primary); font-weight: 650; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 0.85rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 650;
  cursor: pointer;
}
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 1rem;
  height: 0.7rem;
}
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  padding: var(--space-4) var(--container-pad) var(--space-5);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
.nav.is-open { display: block; }

.nav__list { display: flex; flex-direction: column; gap: var(--space-1); }

.nav__link {
  display: block;
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}
.nav__link:hover { background: var(--color-primary-soft); color: var(--color-primary-strong); }
.nav__link[aria-current="true"] { color: var(--color-primary-strong); background: var(--color-primary-soft); }

.nav__cta { margin-top: var(--space-4); width: 100%; }

/* No-JS fallback: show the navigation permanently, hide the toggle */
.no-js .nav-toggle { display: none; }
.no-js .nav { display: block; position: static; padding-inline: 0; box-shadow: none; border: 0; }
.no-js .site-header { position: static; }
.no-js .site-header__inner { flex-wrap: wrap; }
.no-js .nav__list { flex-direction: row; flex-wrap: wrap; }


/* 7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-8) var(--space-8);
  background-image:
    radial-gradient(60% 70% at 8% 0%, var(--color-primary-soft), transparent 65%),
    radial-gradient(45% 60% at 100% 10%, var(--color-accent-soft), transparent 60%);
}

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

.hero__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.hero__lead {
  max-width: 54ch;
  color: var(--color-muted);
  font-size: var(--text-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-block: var(--space-6) var(--space-5);
}

.hero__note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  color: var(--color-primary-strong);
  font-size: var(--text-sm);
  font-weight: 600;
}
.hero__note .icon { color: var(--color-primary); }

.hero__visual { justify-self: center; width: min(100%, 26rem); }
/* drop-shadow() takes at most three lengths, so it cannot reuse --shadow-lg */
.road { display: block; width: 100%; height: auto; filter: drop-shadow(0 18px 30px rgba(14, 26, 23, .16)); }
.road__line { animation: road-scroll 2.4s linear infinite; }
.road__sun { transform-origin: 352px 104px; }

@keyframes road-scroll { to { stroke-dashoffset: -92; } }


/* 8. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  background: var(--color-ink);
  color: var(--color-on-dark);
}
.site-footer a { color: var(--color-on-dark); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }

.site-footer__inner {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  padding-bottom: var(--space-7);
}

.brand--footer { color: #fff; }
.brand--footer .brand__tld { color: var(--color-accent); }

.site-footer__tagline {
  margin: var(--space-3) 0 0;
  max-width: 40ch;
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
}

.site-footer__hint {
  margin: var(--space-4) 0 0;
  color: var(--color-on-dark-muted);
  font-size: var(--text-xs);
}

.site-footer__bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
}
.site-footer__bar p { margin: 0; }


/* 9. Responsive breakpoints
   -------------------------------------------------------------------------- */
@media (min-width: 40em) {          /* 640px */
  :root { --container-pad: var(--space-6); }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .site-footer__inner { grid-template-columns: 1.2fr 1fr; }
}

@media (min-width: 56em) {          /* 896px */
  :root { --header-height: 4.75rem; }

  .section { padding-block: var(--space-9); }
  .hero { padding-block: var(--space-9); }
  .hero__inner { grid-template-columns: 1.05fr 0.95fr; }
  .hero__visual { width: 100%; }

  .split { grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: center; }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }

  /* Desktop navigation */
  .nav-toggle { display: none; }
  .nav,
  .nav.is-open {
    display: flex;
    position: static;
    align-items: center;
    gap: var(--space-4);
    padding: 0;
    background: none;
    border: 0;
    box-shadow: none;
  }
  .nav__list { flex-direction: row; gap: var(--space-1); }
  .nav__link { padding: var(--space-2) var(--space-3); font-size: var(--text-sm); }
  .nav__cta { margin-top: 0; width: auto; }
}

@media (min-width: 72em) {          /* 1152px */
  .feature-list { gap: var(--space-4); }
}


/* 10. Motion & print preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover, .card:hover { transform: none; }
}

@media print {
  .site-header, .nav-toggle, .hero__visual, .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
  .section, .hero { padding-block: 1rem; }
  .card, .feature { break-inside: avoid; box-shadow: none; }
}