/* ===========================
   Global
   =========================== */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}

:root {
  /* ===== TYPE ===== */
  --font-heading:
    "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;

  /* Inter supports fractional weights */
  --fw-body: 400;
  --fw-title: 450;
  --fw-kicker: 450;

  /* ===== LAYOUT KNOBS ===== */
  --rail-inset: clamp(20px, 4vw, 64px);
  --col-gap: clamp(20px, 4vw, 48px);

  /* Beat column widths */
  --beat-left: 60vw; /* media column */
  --beat-right: 1fr; /* text column */

  /* ===== MEDIA GEOMETRY ===== */
  --panel-h: clamp(420px, 90vh, 920px);
  --hero-h: clamp(360px, 45vh, 520px);
  --grafana-h: clamp(420px, 65vh, 780px);

  /* “Thinness” control inside the left column */
  --panel-max-w: 96%;

  /* ===== RIGHT PANE (TEXT FIELD) ===== */
  --rt-pad-top: clamp(56px, 10vh, 180px);
  --rt-measure: min(52ch, 78%);
  --rt-x: 0px;

  --rt-block-gap: clamp(1.2rem, 3.2vh, 2.6rem);
  --rt-internal-gap: 0.9rem;

  --p-gap: 0.85rem;
  --p-gap-prose: clamp(1.4rem, 3vh, 2.2rem);

  /* Spacing between blocks inside a beat */
  --block-gap: var(--rt-block-gap);

  /* Top padding for the beat text column */
  --beat-text-top: var(--rt-pad-top);

  --rt-kicker: clamp(0.82rem, 0.25vw + 0.72rem, 0.95rem);
  --rt-title: clamp(1.6rem, 1.4vw + 1.1rem, 2.4rem);
  --rt-body: clamp(1.02rem, 0.4vw + 0.92rem, 1.22rem);

  --rt-nudge-a: -18px;
  --rt-nudge-b: 14px;

  /* ===== TOP RULE ===== */
  --top-rule-h: 55px;
}

/* ===== Density presets ===== */
.is-tight {
  --p-gap: 0.55rem;
  --p-gap-prose: 0.9rem;
  --block-gap: clamp(0.9rem, 2.2vh, 1.6rem);
  --beat-text-top: clamp(28px, 5vh, 84px);
}

.is-regular {
  --p-gap: 0.85rem;
  --p-gap-prose: 1.2rem;
  --block-gap: var(--rt-block-gap);
  --beat-text-top: var(--rt-pad-top);
}

/* tweakings for in-paragraph spacing */
.is-airy {
  --p-gap: 1.15rem;
  --p-gap-prose: clamp(1.6rem, 3.5vh, 2.6rem);
  --block-gap: clamp(1.6rem, 4vh, 3.2rem);
  --beat-text-top: clamp(64px, 12vh, 220px);
}

body {
  margin: 0;
  background: #fff;
  color: #111;
}

/* ===========================
   Page wrapper
   =========================== */
.page {
  border-top: var(--top-rule-h) solid #000;
  min-height: 100vh;
}

/* ===========================
   Canonical Beat Layout
   Each beat is the conversation unit
   =========================== */
.beat {
  display: grid;
  grid-template-columns: var(--beat-left) var(--beat-right);
  column-gap: var(--col-gap);
  align-items: start;
}

/* Hero rows are full-width reset moments */
.hero-breakout {
  display: block;
  margin: 0;
}

/* ===========================
   Beat media: stacked, touching, inset from left
   =========================== */
.beat-media {
  padding-left: var(--rail-inset);
}

.beat-media > img,
.beat-media > video {
  display: block;

  /* touch neighbors */
  margin: 0;
  padding: 0;

  /* geometry */
  width: 100%;
  max-width: var(--panel-max-w);
  height: var(--panel-h);

  object-fit: cover;
  background: #000;
  border: 0;
}

/* NEW: when JPGs are wrapped in <figure class="media-photo">, the FIGURE must
   take on the same geometry as the old <img> rule (otherwise the image "escapes") */
.beat-media > figure.media-photo {
  display: block;
  margin: 0;
  padding: 0;

  width: 100%;
  /* max-width: 100%; */
  max-width: var(--panel-max-w);
  height: var(--panel-h);

  background: #000;
  border: 0;
}

/* Ensure no baseline “inline gap” behavior sneaks in */
.beat-media > img {
  vertical-align: top;
}
.beat-media > video {
  vertical-align: top;
}

/* ===========================
   Hero breakout media (extra wide)
   =========================== */
.hero-xwide {
  display: block;

  width: calc(100% - var(--rail-inset));
  margin-left: var(--rail-inset);
  margin-right: 0;

  height: var(--hero-h);

  object-fit: cover;
  background: #000;
  border: 0;

  padding: 0;
}

/* NEW: if the hero image is wrapped in <figure class="media-photo">,
   make the FIGURE behave like .hero-xwide */
.hero-breakout > figure.media-photo {
  width: calc(100% - var(--rail-inset));
  height: var(--hero-h);
  margin-left: var(--rail-inset);
  margin-right: 0;
  padding: 0;
  border: 0;
  background: #000;
}

/* Grafana iframe sizing */
iframe.hero-xwide {
  width: calc(100% - var(--rail-inset));
  height: var(--hero-h);
  border: 0;
  background: #000;
}

iframe.hero-xwide.grafana {
  height: var(--grafana-h);
}

/* ===========================
   Beat text column
   =========================== */
.beat-text {
  padding-top: var(--beat-text-top);
}

/* One field containing all blocks in a beat */
.right-field,
.beat-text {
  font-family: var(--font-heading);
  font-weight: var(--fw-body);
  color: #111;
}

/* The beat text container can behave like the field */
.beat-text {
  width: var(--rt-measure);
  margin-left: auto;
  margin-right: auto;
  transform: translateX(var(--rt-x));
  display: grid;
  gap: var(--block-gap);
}

/* Each placed text unit */
.rt-block {
  display: grid;
  gap: var(--rt-internal-gap);
}

/* Placement variants (per block) */
.rt-left {
  justify-self: start;
  text-align: left;
}
.rt-center {
  justify-self: center;
  text-align: left;
}
.rt-right {
  justify-self: end;
  text-align: left;
}

/* Nudges (per block) */
.rt-nudge-a {
  transform: translateX(var(--rt-nudge-a));
}
.rt-nudge-b {
  transform: translateX(var(--rt-nudge-b));
}

/* Breathers (per block vertical spacing) */
.rt-breath-lg {
  margin-top: clamp(1rem, 6vh, 4rem);
}
.rt-breath-sm {
  margin-top: clamp(0.4rem, 2vh, 1.4rem);
}

/* Type styles */
.rt-kicker {
  margin: 0;
  font-size: var(--rt-kicker);
  font-weight: var(--fw-kicker);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
}

.rt-title {
  margin: 0;
  font-size: var(--rt-title);
  font-weight: var(--fw-title);
  line-height: 1.08;
}

.rt-body {
  margin: 0;
  font-size: var(--rt-body);
  line-height: 1.6;
  opacity: 0.92;
}

/* You have raw <p> tags in some blocks; keep them consistent */
.rt-block p {
  margin: 0;
  font-size: var(--rt-body);
  line-height: 1.6;
  opacity: 0.92;
}

.rt-block p + p {
  margin-top: var(--p-gap-prose);
}

/* ===========================
   Text-only beats
   =========================== */
.beat-textonly .beat-media {
  display: none;
}

.beat-textonly {
  grid-template-columns: 1fr;
}

.beat-textonly .beat-text {
  padding-left: var(--rail-inset);
  width: min(72ch, calc(100% - var(--rail-inset)));
  margin-left: 0;
  margin-right: 0;
}

/* ===========================
   Hover captions for JPG photos
   =========================== */
.media-photo {
  position: relative;
  margin: 0;
  padding: 0;
  display: block;
  background: #000;
}

/* Ensure the image fills the same geometry rules as before */
.media-photo > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Caption overlay (hidden by default) */
.media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;

  padding: 0.55rem 0.7rem;
  background: rgba(0, 0, 0, 0.38);
  color: rgba(255, 255, 255, 0.92);

  font-family: var(--font-heading);
  font-size: clamp(0.85rem, 0.25vw + 0.78rem, 0.98rem);
  line-height: 1.25;

  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
  pointer-events: none;
}

/* Back link: readable on white */
.back-link {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  z-index: 50;

  color: rgba(0, 0, 0, 0.78);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(0, 0, 0, 0.12);
  padding: 0.45rem 0.8rem;
  border-radius: 10px;

  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.2px;

  transition:
    color 0.3s ease,
    opacity 0.3s ease;
}

/* Reveal on hover (desktop) */
.media-photo:hover .media-caption {
  opacity: 1;
  transform: translateY(0);
}

/* Keyboard accessibility: reveal when focused */
.media-photo:focus-within .media-caption {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile: no hover — captions always visible and inline */
@media (hover: none) and (pointer: coarse) {
  .media-caption {
    position: static;
    opacity: 1;
    transform: none;
    pointer-events: auto;

    background: none;
    color: rgba(0, 0, 0, 0.62);

    padding: 0.45rem 0 0;
    margin-top: 0.4rem;
  }
}

/* ===========================
   Mobile
   =========================== */
@media (max-width: 900px) {
  :root {
    --beat-left: 1fr;
    --rt-measure: min(56ch, 92%);
    --rt-x: 0px;
    --panel-h: clamp(360px, 70vh, 640px);
  }

  .beat {
    grid-template-columns: 1fr;
    column-gap: 0;
  }

  .beat-media {
    padding-left: var(--rail-inset);
    padding-right: var(--rail-inset);
  }

  .beat-media > img,
  .beat-media > video {
    max-width: 100%;
  }

  .beat-media > figure.media-photo {
    max-width: 100%;
  }

  .beat-text {
    padding-top: clamp(18px, 4vh, 56px);
    padding-left: var(--rail-inset);
    padding-right: var(--rail-inset);
    width: 100%;
    margin: 0;
    transform: none;
  }

  .hero-xwide,
  iframe.hero-xwide {
    width: calc(100% - (var(--rail-inset) * 2));
    margin-left: var(--rail-inset);
    margin-right: var(--rail-inset);
  }

  .rt-nudge-a,
  .rt-nudge-b {
    transform: none;
  }

  .rt-right,
  .rt-center {
    justify-self: start;
  }
}