/* Base */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-6);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul,
ol,
figure {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Layout */

.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.section {
  padding-top: var(--section-gap);
}

/* Full-width tinted band to separate a section */

.band {
  position: relative;
  overflow: hidden;
  margin-top: var(--section-gap);
  padding-block: var(--section-gap);
  background: var(--tint-accent);
}

.band > .container {
  position: relative;
}

.section-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.section-intro {
  max-width: 40rem;
  margin-top: var(--space-4);
  color: var(--color-text-soft);
  font-size: var(--text-md);
}

.section-head {
  margin-bottom: var(--space-12);
}

/* Heading on the left, content on the right */

.split {
  display: grid;
  grid-template-columns: 5fr 7fr;
  align-items: start;
  gap: var(--space-16);
}

.item-title {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}

.item-text {
  margin-top: var(--space-2);
  color: var(--color-text-soft);
}

/* Header */

.site-header {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-snug);
}

.brand img {
  width: 28px;
  height: 28px;
}

.nav {
  display: flex;
  gap: var(--space-8);
  font-size: var(--text-sm);
}

.nav a {
  color: var(--color-on-accent-soft);
  transition: color var(--duration-fast) ease;
}

.nav a:hover {
  color: var(--color-on-accent);
}

/* Button */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding-inline: var(--space-6);
  border-radius: var(--radius-control);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) ease,
    transform var(--duration-fast) ease;
}

.button:hover {
  background: var(--color-accent-hover);
}

.button:active {
  transform: scale(0.98);
}

.button--small {
  min-height: 38px;
  padding-inline: var(--space-4);
  font-size: var(--text-sm);
}

.site-header .button {
  background: var(--color-pop);
  color: var(--color-ink);
}

.site-header .button:hover {
  background: var(--color-pop-hover);
}

/* Hero */

.hero {
  padding-top: var(--space-12);
}

.hero .container {
  display: grid;
  grid-template-columns: 7fr 5fr;
  align-items: center;
  gap: var(--space-16);
}

.hero h1 {
  max-width: 13ch;
  font-size: var(--text-2xl);
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.hero-lead {
  max-width: 44ch;
  margin-top: var(--space-6);
  color: var(--color-text-soft);
  font-size: var(--text-md);
}

.hero .button {
  margin-top: var(--space-8);
}

.hero-media {
  position: relative;
}

.hero-media::before {
  content: "";
  position: absolute;
  right: calc(var(--space-4) * -1);
  bottom: calc(var(--space-4) * -1);
  width: 62%;
  height: 62%;
  border-radius: var(--radius-card);
  background: var(--color-pop);
}

.hero-media .hero-image {
  position: relative;
}

.hero-image,
.side-image,
.wide-image {
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-line);
}

.hero-image {
  aspect-ratio: 4 / 5;
  max-height: 72dvh;
  width: 100%;
}

.hero-image img,
.side-image img,
.wide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Quick links under the hero */

.quick-links {
  margin-top: var(--section-gap);
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.quick-links ul {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.quick-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-6);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-snug);
  transition: background-color var(--duration-fast) ease;
}

.quick-links li:first-child a {
  padding-left: 0;
}

.quick-links a:hover {
  color: var(--color-pop);
}

.quick-links img {
  width: 22px;
  height: 22px;
  transition: transform var(--duration-fast) ease;
}

.quick-links a:hover img {
  transform: translateX(4px);
}

/* Gold call-to-action panel */

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: clamp(1.75rem, 1.2rem + 2.2vw, 3.25rem);
  border-radius: var(--radius-card);
  background: var(--color-pop);
  color: var(--color-ink);
}

.cta-panel .section-title {
  max-width: 24ch;
}

.cta-panel p {
  margin-top: var(--space-3);
}

/* Rows separated by a soft line */

.rows > li {
  padding-block: var(--space-6);
}

.rows > li + li {
  border-top: 1px solid var(--color-line);
}

.rows > li:first-child {
  padding-top: 0;
}

/* Cards: flat, no border, no shadow */

.card {
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: var(--color-text);
  padding: clamp(1.5rem, 1.2rem + 1vw, 2.25rem);
}

.card-icon {
  width: var(--icon-size);
  height: var(--icon-size);
  margin-bottom: var(--space-4);
}

/* Lender criteria: two then three */

.criteria {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}

.criteria > * {
  grid-column: span 2;
}

.criteria > :nth-child(-n + 2) {
  grid-column: span 3;
}

/* Mortgage options: heading, intro and photo stay beside the list */

.side-sticky {
  position: sticky;
  top: var(--space-6);
}

.side-sticky .side-image {
  margin-top: var(--space-8);
}

/* Landlords: the stroke fills the space under the photo */

.split--stretch {
  align-items: stretch;
}

.side-media {
  display: flex;
  flex-direction: column;
}

.side-image {
  aspect-ratio: 4 / 3;
}

.side-copy .section-title {
  margin-bottom: var(--space-8);
}

/* Steps */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  counter-reset: step;
}

.steps li {
  position: relative;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--marker-size);
  height: var(--marker-size);
  margin-bottom: var(--space-4);
  border-radius: 50%;
  background: var(--color-pop);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}


/* Thin stroke leading from one step to the next */

.steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: calc(var(--marker-size) / 2);
  left: calc(var(--marker-size) + var(--space-2));
  right: calc(var(--space-2) - var(--space-8));
  border-top: var(--stroke);
}

/* Comparison */

.compare {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.compare .item-title {
  font-size: var(--text-lg);
}

.compare ul {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
  color: var(--color-text-soft);
}

.note {
  max-width: 44rem;
  margin-top: var(--space-5);
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

/* Wide image, with a thin stroke leading down to the next section */

.wide-image {
  aspect-ratio: 21 / 9;
}

/* Thin strokes that lead from an image to the next thing, curving at the bottom */

.lead {
  position: relative;
  width: var(--lead-width, 30%);
  height: var(--section-gap);
  border-right: var(--stroke);
  border-bottom: var(--stroke);
  border-bottom-right-radius: var(--lead-radius);
}

.lead::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-pop);
}

.lead--right {
  flex: 1;
  width: auto;
  height: auto;
  min-height: var(--space-16);
  margin-left: var(--space-8);
  margin-right: calc(var(--space-2) - var(--space-16));
  border-right: 0;
  border-left: var(--stroke);
  border-bottom-right-radius: 0;
  border-bottom-left-radius: var(--lead-radius);
}

.lead--right::after {
  left: auto;
  right: 0;
}

.section--after-line {
  padding-top: var(--space-6);
}

/* Paperwork and costs */

.checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4) var(--space-8);
  margin-top: var(--space-6);
  color: var(--color-text-soft);
}

.paperwork-title {
  font-size: clamp(1.5rem, 1.3rem + 0.8vw, 2rem);
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.paperwork-intro {
  margin-top: var(--space-3);
  color: var(--color-text-soft);
}

.paperwork .rows {
  margin-top: var(--space-8);
}

.paperwork .item-title {
  font-size: var(--text-base);
}

.paperwork .rows > li {
  padding-block: var(--space-4);
}

.paperwork .rows > li:first-child {
  padding-top: 0;
}

/* Anything that clicks open */

summary {
  list-style: none;
  cursor: pointer;
}

summary::-webkit-details-marker {
  display: none;
}

.toggle::after,
.faq summary::after {
  content: "+";
  flex-shrink: 0;
  color: var(--color-accent);
  font-size: var(--text-lg);
  font-weight: var(--weight-regular);
  line-height: 1.2;
}

details[open] > summary .toggle::after,
.faq details[open] summary::after {
  content: "\2212";
}

summary:hover .item-title {
  color: var(--color-accent);
}

.expand-body {
  color: var(--color-text-soft);
}

.expand-body p + p,
.expand-link {
  margin-top: var(--space-3);
}

.expand-link {
  display: inline-block;
  color: var(--color-accent);
  font-weight: var(--weight-medium);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Rows with a title on the left and text on the right */

.rows--pair > li {
  padding-block: 0;
}

.rows--pair summary,
.rows--pair .expand-body {
  display: grid;
  grid-template-columns: var(--row-columns);
  gap: var(--space-6);
}

.rows--pair summary {
  padding-block: var(--space-5);
}

.rows--pair summary .item-text {
  margin-top: 0;
}

.rows--pair .expand-body {
  padding-bottom: var(--space-6);
}

.rows--pair .expand-body > div {
  grid-column: 2;
}

/* Rows with the text under the title */

.rows--stack > li {
  padding-block: 0;
}

.rows--stack summary {
  display: grid;
  grid-template-columns: 1fr 1.25rem;
  gap: var(--space-6);
  padding-block: var(--space-5);
}

.rows--stack .expand-body {
  padding: 0 calc(1.25rem + var(--space-6)) var(--space-6) 0;
}

/* Cards that click open */

.card summary {
  display: grid;
  grid-template-columns: 1fr 1.25rem;
  gap: var(--space-4);
}

.card .expand-body {
  padding: var(--space-4) calc(1.25rem + var(--space-4)) 0 0;
}

/* FAQ */

.faq details {
  border-top: 1px solid var(--color-line);
}

.faq details:last-child {
  border-bottom: 1px solid var(--color-line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-5);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-snug);
}

.faq details p {
  max-width: 40rem;
  padding-bottom: var(--space-6);
  color: var(--color-text-soft);
}

/* Contact */

.band--solid {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.band--solid .section-intro {
  color: var(--color-on-accent-soft);
}

.band--solid .contact-details dt {
  color: var(--color-on-accent-soft);
}

.band--solid .contact-details a {
  text-decoration-color: var(--color-on-accent-soft);
}

.contact-icon {
  display: block;
  width: var(--icon-size);
  height: var(--icon-size);
  margin-bottom: var(--space-3);
}

.contact-details {
  display: grid;
  grid-template-columns: 5fr 4fr 4fr;
  gap: var(--space-8);
  margin: var(--space-8) 0 0;
}

.contact-details dt {
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

.contact-details dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-snug);
  overflow-wrap: anywhere;
}

.nowrap {
  white-space: nowrap;
}

.contact-details a {
  text-decoration: underline;
  text-decoration-color: var(--color-line);
  text-underline-offset: 4px;
  transition: text-decoration-color var(--duration-fast) ease;
}

.contact-details a:hover {
  text-decoration-color: currentColor;
}

/* Footer */

.site-footer {
  padding-block: var(--space-8);
  background: var(--color-footer);
  color: var(--color-on-accent-soft);
  font-size: var(--text-sm);
}

.footer-inner {
  display: grid;
  gap: var(--space-2);
}

.site-footer strong {
  color: var(--color-on-accent);
  font-weight: var(--weight-medium);
}

/* Not found page */

.not-found {
  padding-block: var(--section-gap);
}

.not-found p {
  margin-block: var(--space-4) var(--space-8);
  color: var(--color-text-soft);
  font-size: var(--text-md);
}

/* Motion */

@media (prefers-reduced-motion: no-preference) {
  :root {
    interpolate-size: allow-keywords;
  }

  details::details-content {
    block-size: 0;
    overflow: hidden;
    transition:
      block-size 260ms var(--ease-out),
      content-visibility 260ms allow-discrete;
  }

  details[open]::details-content {
    block-size: auto;
  }

  .js [data-reveal] {
    opacity: 0;
    transform: translateY(12px);
    transition:
      opacity var(--duration-slow) var(--ease-out),
      transform var(--duration-slow) var(--ease-out);
  }

  .js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

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

/* Small laptops and tablets */

@media (max-width: 1000px) {
  .nav {
    display: none;
  }

  .steps,
  .quick-links ul {
    grid-template-columns: repeat(2, 1fr);
  }

  .quick-links li:nth-child(odd) a {
    padding-left: 0;
  }

  .quick-links a {
    padding-block: var(--space-5);
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .steps li:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 860px) {
  .hero {
    padding-top: var(--space-6);
  }

  .hero .container,
  .split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero-image {
    aspect-ratio: 4 / 3;
    max-height: none;
  }

  .compare,
  .contact-details {
    grid-template-columns: 1fr;
  }

  .contact-details {
    gap: var(--space-6);
  }

  .wide-image {
    aspect-ratio: 4 / 3;
  }

  .side-sticky {
    position: static;
  }

  .lead--right {
    display: none;
  }

  .hero-media::before {
    right: calc(var(--space-2) * -1);
    bottom: calc(var(--space-2) * -1);
  }

  .criteria > *,
  .criteria > :nth-child(-n + 2) {
    grid-column: span 6;
  }
}

/* Phones */

@media (max-width: 560px) {
  .rows--pair summary {
    grid-template-columns: 1fr 1.25rem;
    gap: var(--space-1) var(--space-4);
  }

  .rows--pair summary .item-text {
    grid-column: 1;
    grid-row: 2;
  }

  .rows--pair summary .toggle {
    grid-column: 2;
    grid-row: 1;
  }

  .rows--pair .expand-body {
    display: block;
  }

  .steps,
  .checklist {
    grid-template-columns: 1fr;
  }
}