/* ============================================================
   mst collective — objects of interest
   Big, heavy wordmark (concept scale) over an emphasised
   full-frame background + a contained flashing window.
   ============================================================ */

:root {
  --navy:    #16205a;
  --navy-2:  #0b1236;
  --sand:    #b3a99c;
  --paper:   #f4f1ea;
  --white:   #ffffff;

  --pad: clamp(1.25rem, 3.5vw, 3rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: "Jost", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--white);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Emphasised background photo (fills the frame) ---------- */

.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: var(--paper) url("images/bg-11.jpg") center / cover no-repeat;
}

/* Darkens the top & bottom bands where the big text sits, keeps the
   centre (window + artwork) bright. */
.backdrop-veil {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg,
    rgba(11, 18, 54, 0.52) 0%,
    rgba(11, 18, 54, 0.10) 24%,
    rgba(11, 18, 54, 0.06) 50%,
    rgba(11, 18, 54, 0.12) 74%,
    rgba(11, 18, 54, 0.58) 100%);
}

/* ---------- Stage ---------- */

.stage {
  position: relative;
  z-index: 2;
  height: 100%;

  /* fade in once frames are decoded */
  opacity: 0;
  transition: opacity 0.9s var(--ease);
}

body.is-ready .stage { opacity: 1; }

/* ---------- Contained flashing window ---------- */

.window {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 0;
  border: 0;
  width: clamp(240px, 38vw, 460px);
  aspect-ratio: 4 / 5;
  max-height: 74vh;
  overflow: hidden;
  background: var(--navy-2);
  box-shadow: 0 40px 90px -34px rgba(11, 18, 54, 0.6);
  cursor: pointer;
  transition: transform 0.55s var(--ease), box-shadow 0.55s var(--ease);
}

.window:hover {
  transform: translate(-50%, -50%) scale(1.025);
  box-shadow: 0 54px 110px -30px rgba(11, 18, 54, 0.72);
}

.window:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 8px;
}

/* Hovering the images uses the custom cursor instead of the native one */
@media (hover: hover) and (pointer: fine) {
  .window { cursor: none; }
}

/* Touch / no-hover fallback affordance */
.window__hint {
  position: absolute;
  right: 0.75rem;
  bottom: 0.7rem;
  z-index: 2;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0.9;
  display: none;
}
@media (hover: none), (pointer: coarse) {
  .window__hint { display: block; }
}

.window__frames { position: absolute; inset: 0; }

.window__frames .frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.03);
}

.window__frames .frame.is-active { opacity: 1; }

.reduced .window__frames .frame { transition: opacity 1.2s ease; }

.window__scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg,
    rgba(11, 18, 54, 0.10) 0%,
    rgba(11, 18, 54, 0.00) 40%,
    rgba(11, 18, 54, 0.28) 100%);
}

.window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

/* ---------- Big, heavy wordmark ---------- */

.wordmark {
  position: absolute;
  inset: 0;
  z-index: 3;
  margin: 0;
  padding: var(--pad);
  pointer-events: none;          /* clicks pass through to the window trigger */

  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;

  text-transform: lowercase;
  text-shadow: 0 2px 50px rgba(11, 18, 54, 0.55);
}

.line {
  display: block;
  white-space: nowrap;                 /* one line each, like the concept */
  font-size: clamp(2.5rem, 11vw, 11rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.line--brand { font-weight: 700; }     /* "mst collective" — Jost Bold */
.line--sub   { font-weight: 600; }     /* "objects of interest" — Jost SemiBold */

/* ---------- Custom cursor (over the clickable images) ---------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 70;
  pointer-events: none;
  will-change: transform;
}

@media (hover: none), (pointer: coarse) {
  .cursor { display: none; }
}

.cursor__disc {
  display: grid;
  place-items: center;
  width: clamp(90px, 7.5vw, 118px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--navy);
  color: var(--paper);
  box-shadow: 0 20px 44px -16px rgba(11, 18, 54, 0.65);
  transform: translate(-50%, -50%) scale(0.35);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.42s var(--ease);
}

.cursor.is-active .cursor__disc {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.cursor__label {
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ---------- Projects popover (bold, editorial) ---------- */

.projects {
  position: fixed;
  inset: 0;
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  /* Stay visible through the fade-out, then hide once it completes. */
  transition: opacity 0.45s var(--ease), visibility 0s linear 0.45s;
}

.projects.is-open {
  opacity: 1;
  visibility: visible;
  /* Become visible (and focusable) immediately on open. */
  transition: opacity 0.45s var(--ease), visibility 0s linear 0s;
}

.projects__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 12, 38, 0.62);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.projects__panel {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -46%);
  width: min(960px, 92vw);
  max-height: 88vh;
  overflow: auto;
  background: var(--paper);
  color: var(--navy);
  padding: clamp(1.5rem, 4vw, 3.25rem);
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 4vw, 3rem);
  box-shadow: 0 60px 120px -30px rgba(8, 12, 38, 0.7);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease);
}

.projects.is-open .projects__panel {
  transform: translate(-50%, -50%);
  opacity: 1;
}

.projects__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: clamp(0.75rem, 1.5vw, 1.1rem);
  border-bottom: 1px solid rgba(22, 32, 90, 0.18);
}

.projects__eyebrow {
  font-weight: 600;
  font-size: clamp(0.72rem, 1vw, 0.85rem);
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.projects__close {
  -webkit-appearance: none;
  appearance: none;
  border: 0;
  background: none;
  color: var(--navy);
  font: inherit;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  position: relative;
  padding: 0.4em 0.1em;
}

.projects__close::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.15em;
  height: 1px;
  width: 100%;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}
.projects__close:hover::after,
.projects__close:focus-visible::after { transform: scaleX(1); transform-origin: left; }

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

.project { border-bottom: 1px solid rgba(22, 32, 90, 0.18); }
.project:first-child { border-top: 1px solid rgba(22, 32, 90, 0.18); }

.project__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2vw, 1.5rem);
  padding: clamp(0.9rem, 2.4vw, 1.7rem) clamp(0.5rem, 2vw, 1.4rem);
  text-decoration: none;
  color: var(--navy);
  overflow: hidden;
  transition: color 0.45s var(--ease);
}

/* Sweep-invert on hover — premium, editorial */
.project__link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--navy);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.project__link:hover,
.project__link:focus-visible { color: var(--paper); }
.project__link:hover::before,
.project__link:focus-visible::before { transform: scaleX(1); }

.project__index,
.project__name,
.project__arrow { position: relative; z-index: 1; }

.project__index {
  align-self: flex-start;
  padding-top: 0.7em;
  font-weight: 600;
  font-size: clamp(0.8rem, 1.1vw, 1rem);
  letter-spacing: 0.1em;
  opacity: 0.55;
}

.project__name {
  margin-right: auto;
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: lowercase;
}

.project__arrow {
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.7rem);
  transition: transform 0.45s var(--ease);
}
.project__link:hover .project__arrow,
.project__link:focus-visible .project__arrow { transform: translate(0.18em, -0.18em); }

.projects__foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  font-size: clamp(0.66rem, 0.9vw, 0.78rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(22, 32, 90, 0.65);
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .line {
    white-space: normal;
    font-size: clamp(2.4rem, 15vw, 5rem);
  }
  .window { width: min(72vw, 20rem); }
}

/* ---------- Motion safety ---------- */
@media (prefers-reduced-motion: reduce) {
  .stage { transition: none; }
}