/* Design tokens extracted from live site: https://www.suls.org.au/publications */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Source+Code+Pro:wght@400;700&family=Inconsolata:wght@400;700&display=swap');

:root {
  /* Colors */
  --color-bg: rgb(251, 250, 248);          /* hsl(40, 27.27%, 97.84%) */
  --color-heading: rgb(0, 0, 0);
  --color-body: rgba(26, 26, 26, 0.87);    /* hsl(0, 0%, 10.2%) at 87% */
  --color-accent: rgb(29, 173, 195);       /* hsl(187.95, 74.11%, 43.92%) — teal */
  --color-light-accent: rgb(206, 227, 227);/* hsl(180, 27.27%, 84.9%) */
  --color-dark-accent: rgb(61, 99, 149);   /* hsl(214.09, 41.9%, 41.18%) — navy */
  --color-white: rgb(255, 255, 255);
  --color-episode-feature: #4870f0;        /* Isabelle guest-art background blue */

  /* Fonts */
  --font-heading: 'Instrument Serif', Georgia, serif;
  --font-nav: 'Source Code Pro', 'Courier New', monospace;
  --font-body: 'Inconsolata', 'Courier New', monospace;

  /* Type scale */
  --size-h1: 4.9rem;
  --size-h2: 2.8rem;
  --size-h3: 2.2rem;
  --size-body: 1rem;
  --size-nav: 1.1rem;
  --size-site-title: 1.5rem;

  /* Layout */
  --content-max-width: 1361px;
  --page-padding: 7vw;
  --logo-height: 76px;
  --logo-height-mobile: 42px;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-body);
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

a {
  color: inherit;
  text-decoration-color: currentColor;
}

a:hover {
  opacity: 0.8;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--color-heading);
  margin: 0;
}

h1 { font-size: var(--size-h1); }
h2 { font-size: var(--size-h2); }
h3 { font-size: var(--size-h3); }

p {
  margin: 0 0 1.4em;
}

p:last-child {
  margin-bottom: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Layout utility */
.container {
  box-sizing: content-box;
  width: min(var(--content-max-width), calc(100vw - 2 * var(--page-padding)));
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Announcement bar */
.announcement-bar {
  background: var(--color-accent);
  color: var(--color-white);
  position: relative;
}

.announcement-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.75em var(--page-padding);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 400;
  text-align: center;
}

.announcement-bar a {
  color: var(--color-white);
  text-decoration: underline;
}

.announcement-bar__close {
  position: absolute;
  right: calc((100vw - min(var(--content-max-width), calc(100vw - 2 * var(--page-padding)))) / 2);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.25em;
}

/* Header */
.site-header {
  position: relative;
  z-index: 20;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2vw;
  padding-top: 1.6vw;
  padding-bottom: 1.6vw;
}

.site-header__logo img {
  height: var(--logo-height);
  width: auto;
}

/* Desktop inline nav */
.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: baseline;
  gap: 0.3em 1.3em;
  flex: 1 1 auto;
  font-family: var(--font-nav);
  text-transform: uppercase;
  font-size: var(--size-nav);
  letter-spacing: 0.02em;
  color: var(--color-dark-accent);
}

.site-nav a,
.site-nav a:link,
.site-nav a:visited {
  color: var(--color-dark-accent);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.site-nav a.is-current {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.site-header__social {
  display: flex;
  align-items: center;
  gap: 0.9em;
  flex-shrink: 0;
}

.site-header__social a,
.site-header__social a:link,
.site-header__social a:visited {
  display: inline-flex;
  color: var(--color-dark-accent);
}

.site-header__social a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.menu-toggle {
  background: none;
  border: none;
  width: 44px;
  height: 32px;
  padding: 0;
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  flex-shrink: 0;
}

.menu-toggle__line {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-dark-accent);
}

.menu-toggle[aria-expanded="true"] {
  position: relative;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line {
  position: absolute;
  top: 50%;
  left: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:first-child {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:last-child {
  transform: rotate(-45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(2) {
  opacity: 0;
}

/* Full-screen nav overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 30;
  overflow-y: auto;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

.nav-overlay.is-open {
  transform: translateY(0);
}

.nav-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.6vw var(--page-padding);
}

.nav-overlay__list {
  padding: 4vw var(--page-padding) 6vw;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.nav-overlay__item {
  border-bottom: none;
}

.nav-overlay__item > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  cursor: pointer;
  font-family: var(--font-nav);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: clamp(1.8rem, 4.5vw, 2.7rem);
  padding: 0.35em 0;
  text-align: center;
  color: var(--color-dark-accent);
}

.nav-overlay__item > summary::-webkit-details-marker {
  display: none;
}

.nav-overlay__item > summary .chevron {
  transition: transform 0.2s ease;
  font-weight: 400;
}

.nav-overlay__item[open] > summary .chevron {
  transform: rotate(90deg);
}

.nav-overlay__item--current > summary {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.nav-overlay__sublist {
  padding: 0.5em 0 1.5em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6em;
}

.nav-overlay__sublist a,
.nav-overlay__sublist a:link,
.nav-overlay__sublist a:visited {
  color: var(--color-dark-accent);
  font-family: var(--font-nav);
  font-size: 1rem;
  text-decoration: none;
  text-transform: none;
}

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

.nav-overlay__social {
  display: flex;
  justify-content: center;
  gap: 1.5em;
  padding-top: 2vw;
  margin-top: 2vw;
  border-top: 1px solid var(--color-light-accent);
}

.nav-overlay__social a,
.nav-overlay__social a:link,
.nav-overlay__social a:visited {
  color: var(--color-dark-accent);
  font-family: var(--font-nav);
  font-size: 0.95rem;
  text-decoration: underline;
}

body.nav-open {
  overflow: hidden;
}

/* Footer */
.site-footer {
  background: var(--color-dark-accent);
  color: var(--color-white);
  padding: 4vw var(--page-padding) 3vw;
  text-align: center;
}

.site-footer a {
  color: var(--color-white);
  text-decoration: underline;
}

.site-footer__social {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0 1.5em;
  font-family: var(--font-nav);
  font-size: 1rem;
  margin-bottom: 1em;
}

.site-footer__org {
  font-family: var(--font-nav);
  font-weight: 700;
  font-size: 1rem;
  margin: 0 0 0.3em;
}

.site-footer__est {
  font-family: var(--font-nav);
  font-size: 1rem;
  margin: 0 0 1.4em;
}

.site-footer__address {
  font-family: var(--font-nav);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
}

/* Hero section */
.hero {
  padding-top: clamp(1rem, 2.5vw, 2rem);
  padding-bottom: 0;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  grid-template-rows: auto 1fr;
  row-gap: clamp(0.5rem, 1.2vw, 1rem);
  column-gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

.hero__heading {
  grid-column: 1;
  grid-row: 1;
  margin-bottom: 0;
}

.hero__copy {
  grid-column: 1;
  grid-row: 2;
}

.hero__image {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: stretch;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.hero__copy p {
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--color-body);
}

.hero__copy a {
  color: inherit;
  text-decoration: underline;
}

.spotify-embed {
  margin-top: clamp(1.25rem, 2.5vw, 1.75rem);
  width: 100%;
}

.spotify-embed iframe {
  display: block;
  width: 100%;
  height: 152px;
  border: none;
  border-radius: 12px;
}

.hero__divider {
  border: none;
  border-top: 1px solid var(--color-heading);
  margin: clamp(2rem, 6vw, 4rem) 0 0;
}

/* Concept film section */
.concept-film {
  padding-top: clamp(1.5rem, 3vw, 2rem);
  padding-bottom: 0;
}

.concept-film__heading {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.concept-film__video {
  width: min(75%, 900px);
  margin-inline: auto;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
}

.concept-film__placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept-film__description {
  width: min(75%, 900px);
  margin: clamp(1.25rem, 2.5vw, 2rem) auto 0;
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--color-body);
  text-align: center;
}

.concept-film__credits {
  width: min(75%, 900px);
  margin: clamp(1.5rem, 3vw, 2.5rem) auto 0;
  font-family: var(--font-body);
  font-size: var(--size-small, 0.9375rem);
  color: var(--color-body);
  text-align: center;
}

.concept-film__credits-heading {
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.concept-film__credits-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.concept-film__credits-role {
  font-weight: 600;
}

.concept-film__divider {
  border: none;
  border-top: 1px solid var(--color-heading);
  margin: clamp(2rem, 6vw, 4rem) 0 0;
}

/* Latest episodes */
.latest-episodes {
  padding-top: clamp(1.5rem, 3vw, 2rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
  /* Vertical focus within the 4:5 frame (no zoom).
     0% / top = show top of image; 50% = centre; 100% / bottom = show bottom.
     Also accepts px, e.g. 120px. */
  --episode-art-y: 95%;
}

.latest-episodes__heading {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.episodes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
}

.episode-card {
  text-align: center;
}

.episode-card--featured {
  display: grid;
  grid-template-columns: minmax(280px, 400px) 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
  text-align: left;
  margin-bottom: clamp(2rem, 5vw, 4rem);
  padding: 0;
  border: 3px solid var(--color-episode-feature);
  border-radius: 12px;
  overflow: hidden;
}

.episode-card__image {
  display: block;
  margin-bottom: 1.2em;
  border-radius: 12px;
  overflow: hidden;
}

.episode-card--featured .episode-card__image {
  margin-bottom: 0;
  border-radius: 0;
}

.episode-card--featured .episode-card__body {
  padding: clamp(1rem, 2.5vw, 1.75rem) clamp(1.25rem, 3vw, 2rem)
           0.6rem 0;
}

.episode-card__image img {
  width: 100%;
  aspect-ratio: 7 / 8;
  object-fit: cover;
  object-position: center var(--episode-art-y);
  display: block;
}

.episode-card__image--placeholder {
  aspect-ratio: 7 / 8;
  background: #d8d5d0;
}

.episode-card__meta {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-body);
  margin: 0 0 0.4em;
}

.episode-card__title {
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  margin-bottom: 0.4em;
}

.episode-card__title a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.1em;
}

.episode-card__description {
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--color-body);
  margin: 0 0 0.9em;
}

.episode-card__description:last-child {
  margin-bottom: 0;
}

.episode-card__quote {
  margin: 0.4em auto 0;
  padding: 0;
  border: none;
  max-width: 32rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-episode-feature);
}

.episode-card__quote-line {
  display: block;
}

.episode-card__quote-line--stagger {
  text-align: right;
  padding-left: 0;
}

.episodes__archive {
  text-align: center;
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  font-family: var(--font-body);
  font-size: var(--size-body);
}

.episodes__archive a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.1em;
}

/* Contact */
.contact-block {
  padding-top: clamp(1.5rem, 3vw, 2rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.contact-block__heading {
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
}

.contact-block__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact-block__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75em;
  margin-bottom: 1em;
}

.contact-block__item:last-child {
  margin-bottom: 0;
}

.contact-block__icon {
  flex-shrink: 0;
  margin-top: 0.15em;
  color: var(--color-body);
}

.contact-block__text {
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--color-body);
  margin: 0;
}

.contact-block__text a {
  color: inherit;
  text-decoration: underline;
}

/* Section divider */
.section-divider {
  border: none;
  border-top: 1px solid var(--color-heading);
  box-sizing: content-box;
  width: min(var(--content-max-width), calc(100vw - 2 * var(--page-padding)));
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 767px) {
  :root {
    --size-h1: 3rem;
    --size-h2: 2rem;
    --size-h3: 1.6rem;
    --page-padding: 6vw;
  }

  .site-header__logo img {
    height: var(--logo-height-mobile);
  }

  .site-nav,
  .site-header__social {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .hero__heading {
    grid-column: auto;
    grid-row: auto;
    order: 0;
  }

  .hero__image {
    grid-column: auto;
    grid-row: auto;
    align-self: auto;
    order: 1;
  }

  .hero__image img {
    height: auto;
    object-fit: contain;
  }

  .hero__copy {
    grid-column: auto;
    grid-row: auto;
    order: 2;
  }

  .concept-film__video {
    width: 100%;
    margin-inline: 0;
    border-radius: 12px;
  }

  .episode-card--featured {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .episode-card--featured .episode-card__body {
    padding: 1.25rem;
  }

  .episode-card__quote,
  .episode-card__quote-line--stagger {
    text-align: center;
  }

  .episodes__grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .site-footer__social {
    gap: 0.5em 1.2em;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .episodes__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}