/* Daily Stretch — one fixed screen, no scrolling. A little arena, not a page. */

:root {
  --bg:          #eaefec;
  --bg-top:      #f6f9f7;
  --disc:        #ffffff;
  --ink:         #16201d;
  --muted:       #62706b;
  --line:        #d8e0dc;
  /* Deep enough that the small uppercase wordmark clears 4.5:1 on paper. */
  --accent:      #0a7a62;
  --accent-2:    #0d6b5f;
  --on-accent:   #ffffff;
  --glow:        rgba(10, 122, 98, .15);
  --scrim:       rgba(18, 30, 26, .45);

  --card: min(54svh, 112vw, 430px);   /* the card's height; width follows 2:3 */
  --col: 28rem;
  --ease: cubic-bezier(.2, .8, .3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0a0f0d;
    --bg-top:    #101a17;
    --disc:      #161d1b;
    --ink:       #ecf1ef;
    --muted:     #93a09b;
    --line:      #24302c;
    --accent:    #2fd8a0;
    --accent-2:  #12b8a0;
    /* The accent is light in the dark theme, so the button's own text has to
       go dark — white on mint is about 1.6:1. */
    --on-accent: #04231b;
    --glow:      rgba(47, 216, 160, .17);
    --scrim:     rgba(0, 0, 0, .62);
  }
}

* { box-sizing: border-box; }

/* The whole scale hangs off the root size, which follows the height of the
   screen — so the type gets as big as it can without the app ever scrolling. */
html {
  font-size: 17px;
  font-size: clamp(15px, 1.9svh + .35vw, 22px);
}

html, body {
  height: 100%;
  overflow: hidden;                       /* the app never scrolls */
  overscroll-behavior: none;
}

body {
  margin: 0;
  /* The wash below covers this, so it is never seen inside the page — but it is
     the canvas colour, which is what iOS paints behind the status bar of a Home
     Screen app. That strip sits against the top of the page, so it wants the top
     of the wash. */
  background: var(--bg-top);
  color: var(--ink);
  font: 1rem/1.5 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  text-wrap: pretty;
}

/* The room: a warm wash at the top, a pool of light around the photograph. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(44% 32% at 50% 41%, var(--glow), transparent 72%),
    linear-gradient(180deg, var(--bg-top), var(--bg) 60%);
}

/* --------------------------------------------------------------------- app */

.app {
  height: 100vh;
  height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: .5rem;
  padding: max(.9rem, env(safe-area-inset-top)) 1.15rem
           max(1rem, env(safe-area-inset-bottom));
}

/* --------------------------------------------------------------------- hud */

.hud {
  width: min(100%, var(--col));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.hud-id { display: flex; flex-direction: column; line-height: 1.25; }

.wordmark {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}

.date { font-size: .95rem; color: var(--muted); }

.streak-chip {
  display: flex;
  align-items: center;
  gap: .35rem;
  padding: .34rem .72rem .34rem .52rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--disc) 70%, transparent);
}

.flame { width: 1.3rem; height: 1.3rem; fill: var(--accent); opacity: .35; }
.streak-chip.is-live .flame { opacity: 1; }

.streak-num {
  font-size: 1.3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* ------------------------------------------------------------------- stage */

.stage {
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(.6rem, 2.2svh, 1.2rem);
}

.arena {
  position: relative;
  flex: 0 1 var(--card);
  width: auto;
  height: auto;
  min-height: 0;
  max-height: var(--card);
  max-width: 100%;
  aspect-ratio: var(--aspect, 10 / 11);
}

.art {
  position: absolute;
  inset: 0;
  border-radius: 21px;
  overflow: hidden;
  background: var(--disc);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--ink) 8%, transparent),
    inset 0 -30px 60px -40px rgba(0, 0, 0, .5),
    0 0 0 1px color-mix(in srgb, var(--line) 60%, transparent),
    0 30px 60px -34px rgba(0, 0, 0, .5),
    0 0 60px -14px var(--glow);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}

[data-scene="run"] .art {
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--ink) 8%, transparent),
    0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent),
    0 30px 60px -34px rgba(0, 0, 0, .5),
    0 0 80px -8px var(--glow);
  animation: breathe 5s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.028); }
}

/* The countdown traces the card's own edge. */
.ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}

[data-scene="run"] .ring { opacity: 1; }

.ring-track {
  fill: none;
  stroke: var(--line);
  stroke-width: 3;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px var(--glow));
  transition: stroke-dashoffset .3s linear, stroke .4s var(--ease);
}

.ring.is-rest .ring-progress { stroke: var(--muted); filter: none; }

/* The card is cut to the photograph's own shape, so nothing needs cropping out. */
.photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ----------------------------------------------------------------- caption */

.caption {
  width: min(100%, var(--col));
  text-align: center;
  display: grid;
  grid-template-rows: auto auto auto;
  justify-items: center;
  align-items: center;
}

/* The brief copy and the countdown share the same three rows, so switching
   between them never nudges the stage up or down. */
.caption > .area    { grid-area: 1 / 1; }
.caption > .name    { grid-area: 2 / 1; }
.caption > .hold    { grid-area: 3 / 1; }
.caption > .readout { grid-area: 1 / 1 / 4 / 2; }

.caption > * { transition: opacity .3s var(--ease), transform .35s var(--ease); }

.area {
  margin: 0 0 .35rem;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.name {
  margin: 0 0 .35rem;
  font-size: clamp(1.7rem, 6.5vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -.025em;
  font-weight: 700;
}

.hold {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 640;
  color: var(--accent);
}

.readout { display: flex; flex-direction: column; align-items: center; }

.count {
  font-size: clamp(4.4rem, 21vw, 6.8rem);
  font-weight: 700;
  letter-spacing: -.045em;
  line-height: .92;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 40px var(--glow);
}

.phase {
  margin-top: .3rem;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Only one of the two ever shows. */
[data-scene="brief"] .readout { opacity: 0; transform: scale(.9); pointer-events: none; }
[data-scene="run"] .caption > .area,
[data-scene="run"] .caption > .name,
[data-scene="run"] .caption > .hold { opacity: 0; transform: scale(.96); pointer-events: none; }

/* ---------------------------------------------------------------- controls */

.controls {
  width: min(100%, var(--col));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .55rem;
}

.btn-primary {
  width: 100%;
  padding: 1.1rem 1.25rem;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  font: inherit;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: .005em;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 10px 24px -12px var(--accent), 0 1px 0 rgba(255, 255, 255, .18) inset;
  transition: transform .12s var(--ease), filter .18s, box-shadow .25s;
}

.btn-primary:hover  { filter: brightness(1.06); }
.btn-primary:active { transform: scale(.975); box-shadow: 0 4px 12px -8px var(--accent); }

.btn-primary.is-running {
  background: none;
  color: var(--muted);
  box-shadow: inset 0 0 0 1px var(--line);
}

.btn-primary.is-done {
  background: none;
  color: var(--accent);
  box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--accent) 55%, transparent);
}

.control-row {
  display: flex;
  align-items: center;
  gap: .55rem;
}

.control-sep[hidden] { display: none; }

.control-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line);
}

.btn-ghost {
  padding: .25rem .1rem;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 1rem;
  cursor: pointer;
  touch-action: manipulation;
}

.btn-ghost:hover { color: var(--ink); }
.btn-ghost[hidden] { display: none; }

.chain {
  display: flex;
  gap: .3rem;
  margin-top: .15rem;
}

.dot {
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--line);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.dot.is-done  { background: var(--accent); box-shadow: 0 0 8px -1px var(--glow); }
.dot.is-today { box-shadow: 0 0 0 2px var(--bg), 0 0 0 3.5px var(--accent); }

.streak-sub {
  margin: 0;
  font-size: .92rem;
  color: var(--muted);
  text-align: center;
}

/* ------------------------------------------------------------------- sheet */

.scrim {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity .3s var(--ease);
  z-index: 5;
}

.scrim.is-open { opacity: 1; }
.scrim[hidden], .sheet[hidden], .finale[hidden] { display: none; }

.sheet {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translate(-50%, 100%);
  width: min(100%, 32rem);
  max-height: 88svh;
  display: flex;
  flex-direction: column;
  padding: .6rem 1.4rem max(1.4rem, env(safe-area-inset-bottom));
  background: var(--disc);
  border-radius: 26px 26px 0 0;
  box-shadow: 0 -20px 60px -20px rgba(0, 0, 0, .5);
  transition: transform .38s var(--ease);
  z-index: 6;
}

.sheet.is-open { transform: translate(-50%, 0); }

.sheet-grip {
  width: 2.4rem;
  height: .25rem;
  border-radius: 999px;
  background: var(--line);
  margin: 0 auto .9rem;
  flex: none;
}

.sheet-body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 1rem;
}

.sheet-name {
  margin: 0 0 .9rem;
  font-size: 1.9rem;
  line-height: 1.15;
  letter-spacing: -.015em;
  font-weight: 680;
}

.setup {
  margin: 0 0 1.1rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.steps {
  margin: 0 0 1.2rem;
  padding-left: 1.2rem;
  font-size: 1.08rem;
}

.steps li { margin-bottom: .5rem; }
.steps li::marker { color: var(--accent); font-weight: 700; }

.note {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: .98rem;
  color: var(--muted);
}

.btn-sheet-close { flex: none; }

/* ------------------------------------------------------------------ finale */

.finale {
  position: fixed;
  inset: 0;
  z-index: 7;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .2rem;
  padding: 2rem 1.5rem;
  text-align: center;
  background: var(--bg);
  opacity: 0;
  transition: opacity .3s var(--ease);
}

.finale.is-open { opacity: 1; }

.rays {
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 40% at 50% 45%, var(--glow), transparent 70%);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: .7; transform: scale(1); }
  50%      { opacity: 1;  transform: scale(1.06); }
}

.finale > *:not(.rays) { position: relative; }

.finale-kicker {
  margin: 0 0 .5rem;
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
}

.finale-count {
  margin: 0;
  font-size: clamp(6rem, 34vw, 11rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(150deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: land .6s var(--ease) both;
}

@keyframes land {
  0%   { opacity: 0; transform: scale(.6) translateY(12px); }
  60%  { opacity: 1; transform: scale(1.06); }
  100% { opacity: 1; transform: scale(1); }
}

.finale-word {
  margin: .7rem 0 0;
  font-size: 1.4rem;
  font-weight: 660;
}

.finale-sub {
  margin: .4rem 0 2rem;
  font-size: 1.02rem;
  color: var(--muted);
  max-width: 22rem;
}

.finale .btn-primary { width: min(100%, 16rem); }

/* ------------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation: none !important;
  }
}

/* Wide and short (laptop in landscape): stand the stage up side by side. */
@media (min-width: 46rem) and (min-height: 34rem) {
  :root { --card: min(62svh, 60vw, 470px); }
}

/* Phone on its side: stage on the left, controls on the right. */
@media (orientation: landscape) and (max-height: 34rem) {
  :root { --card: min(76svh, 40vw, 260px); }

  .app {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr;
    column-gap: 1.5rem;
    padding-bottom: max(.6rem, env(safe-area-inset-bottom));
  }

  .hud { grid-column: 1 / -1; width: 100%; }

  body::before {
    background:
      radial-gradient(30% 46% at 25% 55%, var(--glow), transparent 74%),
      linear-gradient(180deg, var(--bg-top), var(--bg) 60%);
  }

  .stage { gap: .5rem; }
  .controls { justify-content: center; gap: .5rem; }
  .name { font-size: 1.5rem; }
  .count { font-size: clamp(3rem, 11vw, 4rem); }
  .streak-sub { display: none; }
}