/* ==========================================================
   BeatTheHeat.Asia — Heat, Work and the New Economy
   Plain CSS. No build step needed.
   Colours, fonts and spacing are set once here in :root.
   ========================================================== */

:root {
  --ink: #111111;
  --paper: #ffffff;
  --yellow: #FDBC11;          /* Core Yellow — use sparingly */
  --grey-050: #f4f4f2;
  --grey-300: #cfcfcb;
  --grey-500: #6b6b68;
  --grey-700: #3b3b39;

  --font-display: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", Roboto, Arial, sans-serif;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;

  --max: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
  --section-y: clamp(72px, 11vw, 160px);
  --header-h: 64px;
  --edge: max(var(--gutter), calc((100% - var(--max)) / 2 + var(--gutter)));
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1.125rem, 1.05rem + 0.3vw, 1.3rem);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

figure { margin: 0; }

h1, h2, h3, p { margin: 0; }

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 12px 16px;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 700;
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

/* ---------- Shared type ---------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(0.95rem, 0.9rem + 0.3vw, 1.15rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 32px;
  height: 4px;
  background: var(--yellow);
}

.marker {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(20px, 3vw, 32px);
  padding-top: 14px;
  border-top: 2px solid var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.marker span {
  padding: 0 6px;
  background: var(--yellow);
  color: var(--ink);
  letter-spacing: 0.06em;
}
.marker--dark { border-top-color: var(--paper); }

.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 1.6rem + 4.2vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  text-wrap: balance;
}

.lead {
  font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.6rem);
  line-height: 1.4;
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 16px 28px;
  background: var(--yellow);
  color: var(--ink);
  border: 2px solid var(--yellow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.btn::after {
  content: "↗";
  font-family: var(--font-body);
  font-size: 1.1em;
  letter-spacing: 0;
}
.btn:hover {
  background: var(--paper);
  border-color: var(--paper);
}

.btn--small {
  min-height: 44px;
  padding: 10px 14px;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  gap: 8px;
}

.microcopy {
  margin-top: 14px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.82);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: var(--header-h);
  padding-inline: var(--gutter);
  background: var(--ink);
  color: var(--paper);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 1rem + 0.5vw, 1.4rem);
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.wordmark__mark {
  width: 14px;
  height: 14px;
  background: var(--yellow);
}

/* ---------- 1. Hero ---------- */
.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Keeps the vendor in view on narrow phone screens */
  object-position: 80% 40%;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
    rgba(17, 17, 17, 0.94) 0%,
    rgba(17, 17, 17, 0.82) 38%,
    rgba(17, 17, 17, 0.2) 68%,
    rgba(17, 17, 17, 0) 85%);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding: 120px var(--gutter) clamp(40px, 7vw, 88px);
}

.hero__title {
  max-width: 11ch;
  margin-top: 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 1.2rem + 8.4vw, 8.25rem);
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
@media (min-width: 900px) {
  /* On short laptop screens, scale the title to the height too */
  .hero__title { font-size: min(clamp(3rem, 1.2rem + 8.4vw, 8.25rem), 12.5vh); }
}

.hero__subtitle {
  max-width: 28ch;
  margin-top: clamp(16px, 2vw, 24px);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2.25rem);
  line-height: 1.1;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin: clamp(20px, 3vw, 32px) 0 clamp(24px, 3vw, 36px);
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  max-width: 34rem;
  font-weight: 600;
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.25rem);
}
.hero__meta .nw { white-space: nowrap; }
.hero__meta .dot { color: var(--yellow); }

/* Phones and tablets: photo on top, text below, so no words sit on the vendor's face */
@media (max-width: 899px) {
  .hero {
    --hero-ratio: 0.75;          /* photo height ÷ width */
    flex-direction: column;
    align-items: stretch;
  }
  .hero__img {
    position: relative;
    height: calc(100vw * var(--hero-ratio));
    object-position: 82% 35%;
  }
  .hero::after {
    inset: auto 0;
    top: calc(100vw * var(--hero-ratio) * 0.7);
    height: calc(100vw * var(--hero-ratio) * 0.3);
    background: linear-gradient(to bottom, rgba(17, 17, 17, 0) 0%, var(--ink) 100%);
  }
  .hero__content { padding-top: 28px; }
}
@media (min-width: 600px) and (max-width: 899px) {
  .hero { --hero-ratio: 0.56; }
  .hero__img { object-position: 70% 40%; }
}

@media (max-width: 380px) {
  .wordmark { font-size: 1.05rem; letter-spacing: 0.08em; gap: 8px; }
  .btn--small { padding: 10px 10px; font-size: 0.875rem; letter-spacing: 0.05em; }
}

@media (min-width: 900px) {
  .hero__img { object-position: center 40%; }
  .hero::after {
    background:
      linear-gradient(to right,
        rgba(17, 17, 17, 0.9) 0%,
        rgba(17, 17, 17, 0.72) 38%,
        rgba(17, 17, 17, 0) 66%),
      linear-gradient(to top, rgba(17, 17, 17, 0.5) 0%, rgba(17, 17, 17, 0) 40%);
  }
  .hero { align-items: center; }
  .hero__content { padding-top: 64px; padding-bottom: 64px; }
}

/* ---------- 2. The reality ---------- */
.reality {
  display: grid;
  background: var(--paper);
}

.reality__text {
  padding: var(--section-y) var(--gutter) clamp(48px, 7vw, 72px);
}
.reality__text > * + * { margin-top: clamp(18px, 2.4vw, 28px); }
.reality__text .marker + .h2 { margin-top: 0; }
.reality__text .h2 { max-width: 14ch; }
.reality__text p { max-width: 36rem; }
.reality__text p:not(.lead):not(.marker):not(.pull) { color: var(--grey-700); }

.pull {
  padding-left: 20px;
  border-left: 4px solid var(--yellow);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  line-height: 1.4;
}

.reality__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 50% 25%;
}

@media (min-width: 900px) {
  .reality {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: stretch;
  }
  .reality__text {
    padding: var(--section-y) clamp(40px, 6vw, 96px) var(--section-y) var(--edge);
  }
  .reality__media { position: relative; min-height: 640px; }
  .reality__media img {
    position: absolute;
    inset: 0;
    height: 100%;
    aspect-ratio: auto;
    object-position: 48% 30%;
  }
}

/* ---------- 3. The question ---------- */
.question {
  background: var(--ink);
  color: var(--paper);
  padding-top: var(--section-y);
}

.question__text {
  max-width: 22ch;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 1.1rem + 4.2vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.question__text em {
  font-style: italic;
  background: linear-gradient(transparent 82%, var(--yellow) 82%, var(--yellow) 92%, transparent 92%);
}

.question__support {
  margin-top: clamp(28px, 4vw, 44px);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 1.1rem + 1vw, 2rem);
  letter-spacing: 0.02em;
  color: var(--yellow);
}

.question__media {
  margin-top: clamp(56px, 8vw, 112px);
}
.question__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 50% 35%;
}
@media (min-width: 700px) {
  .question__media img { aspect-ratio: 16 / 7; }
}
@media (min-width: 1200px) {
  .question__media img { aspect-ratio: 21 / 8; }
}

/* ---------- 4. The protection chain ---------- */
.chain-section {
  padding-block: var(--section-y);
  background: var(--paper);
}

.chain-intro {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
}
.chain-intro__text .h2 { max-width: 11ch; }
.chain-intro__text .lead {
  max-width: 34rem;
  margin-top: clamp(20px, 3vw, 32px);
}

.chain-intro__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 50% 50%;
}

@media (min-width: 900px) {
  .chain-intro {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: end;
  }
  .chain-intro__media img { aspect-ratio: 3 / 2; }
}

.chain {
  list-style: none;
  margin: clamp(56px, 8vw, 104px) 0 0;
  padding: 0;
  display: grid;
  border-top: 2px solid var(--ink);
}

.chain__step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 16px;
  padding: 24px 0 40px;
  border-bottom: 1px solid var(--grey-300);
}
.chain__step:last-child { border-bottom: 0; padding-bottom: 0; }

.chain__num {
  grid-row: span 2;
  padding-top: 0.55em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--grey-500);
}

.chain__word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 2rem + 4vw, 5.25rem);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.chain__step p {
  max-width: 24rem;
  margin-top: 10px;
  color: var(--grey-700);
}

/* Yellow arrows linking the four words */
.chain__step:not(:last-child)::after {
  content: "↓";
  position: absolute;
  right: 0;
  top: 24px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  line-height: 1;
  color: var(--yellow);
}

@media (min-width: 1024px) {
  .chain {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
  }
  .chain__step {
    display: block;
    padding: 28px 0 0;
    border-bottom: 0;
  }
  .chain__num { display: block; padding-top: 0; }
  .chain__word { margin-top: 12px; }
  .chain__step:not(:last-child)::after {
    content: "→";
    top: 14px;
    right: 0;
    font-size: 2.25rem;
  }
  .chain__step p { font-size: 1.125rem; }
}

/* ---------- Hero co-host credit ---------- */
.hero__cohosts {
  margin-top: clamp(24px, 3vw, 36px);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}
.hero__cohosts a {
  color: var(--paper);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--yellow);
}
.hero__cohosts a:hover { color: var(--yellow); }
.hero__cohosts span { color: var(--yellow); padding-inline: 2px; }

/* ---------- Co-hosts band ---------- */
.cohosts {
  background: var(--grey-050);
  padding-block: clamp(48px, 7vw, 88px);
}

.cohosts__inner {
  display: grid;
  gap: 0;
}

.cohosts__label {
  padding-bottom: 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.cohosts__label::before {
  content: "";
  width: 32px;
  height: 4px;
  background: var(--yellow);
}

.cohost {
  display: grid;
  gap: 10px;
  padding: 24px 0 28px;
  border-top: 2px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
}

.cohost__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 1.3rem + 2vw, 2.75rem);
  line-height: 1;
  text-transform: uppercase;
  text-wrap: balance;
}

.cohost__desc {
  max-width: 30rem;
  font-size: 1.05rem;
  color: var(--grey-700);
}

.cohost__url {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cohost__url::after {
  content: " ↗";
  font-family: var(--font-body);
}

.cohost:hover .cohost__name,
.cohost:focus-visible .cohost__name {
  text-decoration: underline;
  text-decoration-color: var(--yellow);
  text-decoration-thickness: 4px;
  text-underline-offset: 6px;
}

@media (min-width: 900px) {
  .cohosts__inner {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr) minmax(0, 1fr);
    column-gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }
  .cohosts__label { padding-top: 26px; border-top: 2px solid var(--ink); }
}

/* ---------- 5. Closing CTA ---------- */
.closing {
  position: relative;
  background: var(--ink);
  color: var(--paper);
}

.closing__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 30% 40%;
}

.closing__content {
  max-width: 40rem;
  padding: clamp(40px, 8vw, 64px) var(--gutter) clamp(64px, 10vw, 96px);
}
.closing__title { margin-top: 20px; }
.closing__content > p:not(.eyebrow):not(.microcopy) {
  margin: clamp(20px, 3vw, 28px) 0 clamp(28px, 4vw, 40px);
  color: rgba(255, 255, 255, 0.88);
}
.closing__content .microcopy { max-width: 30rem; }

@media (min-width: 900px) {
  .closing {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-height: min(92vh, 900px);
    overflow: hidden;
  }
  .closing__media {
    position: absolute;
    inset: 0;
  }
  .closing__media img {
    height: 100%;
    aspect-ratio: auto;
    object-position: 30% 45%;
  }
  .closing::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to left,
      rgba(17, 17, 17, 0.94) 0%,
      rgba(17, 17, 17, 0.88) 42%,
      rgba(17, 17, 17, 0.5) 58%,
      rgba(17, 17, 17, 0) 78%);
  }
  .closing__content {
    position: relative;
    z-index: 1;
    width: min(40rem, 46%);
    margin-right: var(--edge);
    padding: 96px 0;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 32px;
  padding: 32px var(--edge) 40px;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 1rem;
}
.site-footer__brand {
  margin-right: auto;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.08em;
}

@media (max-width: 599px) {
  .site-footer { flex-direction: column; gap: 4px; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}