:root {
  background: var(--app-background);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; margin: 0; background: var(--app-background); }

body {
  min-height: 100dvh;
  overflow-x: hidden;
  color: var(--app-text);
  background:
    radial-gradient(circle at 50% -20%, var(--shell-raised) 0, transparent 45%),
    linear-gradient(180deg, var(--app-background-deep), var(--app-background));
}

button { font: inherit; }

.app-shell {
  width: min(100%, 760px);
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.app-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.eyebrow { margin: 0 0 5px; color: var(--eyebrow); font-size: var(--type-eyebrow); letter-spacing: .14em; text-transform: uppercase; }
h1 { margin: 0; font: var(--font-weight-semibold) var(--type-app-title) var(--font-family-display); }
.app-bar > div:first-child { min-width: 0; }
.app-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--control);
  color: var(--control-text);
  padding: 8px 10px;
  font-size: var(--type-ui-control);
}

.icon-button { cursor: pointer; }
.icon-button[hidden] { display: none; }
.fullscreen-icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: square; stroke-linejoin: miter; }
#fullscreen-button .fullscreen-icon-exit { display: none; }
#fullscreen-button[data-active="true"] .fullscreen-icon-enter { display: none; }
#fullscreen-button[data-active="true"] .fullscreen-icon-exit { display: block; }
.fullscreen-exit { display: none; }

.reader {
  position: relative;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: clamp(12px, 3.5vw, 28px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, var(--shell-raised), var(--shell));
  box-shadow: var(--reader-shadow);
}

.device-screen {
  container-type: inline-size;
  position: relative;
  width: 100%;
  aspect-ratio: 250 / 122;
  min-height: 184px;
  overflow: hidden;
  border: 5px solid var(--screen-border);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: inset 0 0 24px color-mix(in srgb, var(--paper-shadow) 28%, transparent), 0 1px var(--line);
  touch-action: pan-y;
}

.device-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .15;
  background-image: repeating-linear-gradient(0deg, transparent 0 2px, color-mix(in srgb, var(--screen-ink) 8%, transparent) 2px 3px);
}

.screen-copy {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(12px, 3vw, 22px);
  font-family: var(--font-family-reader);
  font-size: var(--type-reader-base);
  line-height: 1.25;
}

.screen-header-copy {
  flex: none;
  min-height: clamp(46px, 11vw, 62px);
  padding-right: clamp(112px, 34%, 180px);
}
.screen-header-copy.focus-header { min-height: clamp(38px, 9vw, 52px); }
.header-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 7px; font-size: var(--type-reader-header); line-height: 1.2; text-transform: uppercase; }
.date-line { display: flex; width: fit-content; align-items: center; gap: 7px; border: 0; background: transparent; color: inherit; padding: 0; font-size: var(--type-reader-date); font-weight: var(--font-weight-bold); text-align: left; text-transform: uppercase; cursor: pointer; }
.header-primary, .header-secondary { display: contents; }
.weekday-line { display: contents; }
.weekday { border: 1px solid currentColor; padding: 1px 4px; font-weight: var(--font-weight-medium); }
.today-chevron { color: var(--red); font-size: var(--type-today-chevron); font-weight: var(--font-weight-black); line-height: 1; }
.today-chevron-before { margin-right: -3px; }
.today-chevron-after { margin-left: -3px; }
.meta { font-weight: var(--font-weight-regular); letter-spacing: .02em; }
.feast-banner { position: absolute; z-index: 2; top: clamp(13px, 3vw, 22px); right: clamp(13px, 3vw, 22px); width: fit-content; max-width: 48%; overflow: hidden; background: var(--red); color: var(--color-white); padding: 3px 7px; font-size: var(--type-reader-banner); font-weight: var(--font-weight-bold); text-overflow: ellipsis; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.grid { display: grid; flex: 1; grid-template-columns: 1fr 1fr; grid-template-rows: repeat(2, minmax(0, 1fr)); gap: 9px 18px; margin-top: clamp(6px, 2vw, 12px); }
.reading { display: flex; min-width: 0; flex-direction: column; justify-content: flex-end; border: 0; background: transparent; color: var(--ink); padding: 0; text-align: left; cursor: pointer; }
.reading span { display: block; }
.label { color: var(--red); font-size: var(--type-reader-label); font-weight: var(--font-weight-regular); text-transform: uppercase; }
.cite { min-height: 2.2em; margin-top: 2px; font-size: var(--type-reader-citation); font-weight: var(--font-weight-extrabold); line-height: 1.1; overflow-wrap: break-word; white-space: normal; }
.psalm-cite { display: flex !important; flex-direction: column; justify-content: flex-end; gap: .08em; }
.psalm-office { display: grid !important; grid-template-columns: 1.2em minmax(0, 1fr); align-items: baseline; }
.office-icon { color: var(--red); font-size: var(--type-reader-symbol); font-weight: var(--font-weight-regular); text-align: center; }
.focus { flex: 1; justify-content: center; margin-top: clamp(8px, 3vw, 18px); }
.focus .label { font-size: var(--type-reader-focus-label); }
.focus-cite { margin-top: 7px; max-width: 100%; font-size: var(--type-reader-focus-citation); font-weight: var(--font-weight-extrabold); line-height: 1.05; }
.focus-next-hint { position: absolute; z-index: 3; top: 50%; right: max(12px, env(safe-area-inset-right)); width: clamp(8px, 1.8vw, 13px); height: clamp(8px, 1.8vw, 13px); border-top: 2px solid var(--red); border-right: 2px solid var(--red); opacity: .82; pointer-events: none; transform: translateY(-50%) rotate(45deg); }
.prayer-focus { justify-content: center; }
.prayer-text { display: block !important; margin-top: 8px; max-width: 100%; overflow: hidden; font-size: var(--type-reader-prayer); font-weight: var(--font-weight-bold); line-height: 1.22; overflow-wrap: break-word; }
.gloria-text { max-width: 32em; }
.prayer-measure { position: absolute; visibility: hidden; height: auto; max-height: none; overflow: visible; pointer-events: none; }
.continuation-ellipsis { display: inline-block !important; padding-right: .14em; font-kerning: none; letter-spacing: -.14em; white-space: nowrap; }
.warning { display: inline-block; margin-top: 6px; padding: 2px 4px; background: var(--red); color: var(--paper); font-size: var(--type-reader-warning); }

.pixel-art-stack {
  position: absolute;
  z-index: 1;
  top: clamp(13px, 3vw, 22px);
  right: clamp(13px, 3vw, 22px);
  display: flex;
  align-items: flex-start;
  gap: 3px;
}

.pixel-art {
  width: clamp(30px, 8vw, 40px);
  height: auto;
  aspect-ratio: 1 / 1;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.device-screen.has-feast .pixel-art-stack { top: clamp(42px, 9vw, 62px); }

.navigation-controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(10px, 2vw, 16px); padding-bottom: 7px; }
.navigation-controls button {
  min-width: 0;
  min-height: clamp(74px, 14vw, 104px);
  border: 2px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--control) 96%, var(--color-white)), var(--control-deep));
  color: var(--control-text);
  padding: clamp(7px, 1vw, 10px) clamp(7px, 1.4vw, 14px);
  box-shadow: var(--control-shadow-rest);
  cursor: pointer;
  transition: transform .08s ease, box-shadow .08s ease;
}
.navigation-controls button:active { transform: translateY(5px); box-shadow: var(--control-shadow-active); }
.navigation-controls button:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }
.navigation-controls kbd, .navigation-controls span { display: block; }
.navigation-controls kbd { overflow: hidden; color: var(--control-text); font-family: var(--font-family-ui); font-size: var(--type-control-glyph); font-weight: var(--font-weight-bold); letter-spacing: -.03em; line-height: .95; white-space: nowrap; }
.navigation-controls span { margin-top: clamp(5px, 1vw, 9px); overflow: visible; color: var(--control-text); font-size: var(--type-control-label); font-weight: var(--font-weight-bold); line-height: 1.05; text-overflow: clip; white-space: normal; }

.app-footer { display: grid; gap: 14px; color: var(--app-text); font-size: var(--type-footer); line-height: 1.55; }
.install-guide, .rotate-guide { border: 1px solid var(--line); border-radius: 10px; background: color-mix(in srgb, var(--shell-raised) 78%, transparent); padding: clamp(16px, 4vw, 24px); }
.install-guide { display: grid; gap: 14px; }
.app-footer h2, .app-footer h3, .app-footer p { margin: 0; }
.app-footer h2 { font: var(--font-weight-semibold) var(--type-section-title) var(--font-family-display); }
.app-footer h3 { margin-bottom: 6px; font-size: var(--type-footer); text-transform: uppercase; letter-spacing: .08em; }
.app-footer strong { color: var(--app-text); }
.platform-steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 4vw, 30px); }
.platform-steps ol { margin: 0; padding-left: 1.6em; }
.platform-steps li + li { margin-top: 5px; }
.rotate-guide { display: grid; gap: 8px; }
.project-credit { display: grid; gap: 3px; padding: 4px 0 8px; text-align: center; }
.project-credit a { color: var(--app-text); font-weight: var(--font-weight-bold); text-underline-offset: 3px; }

dialog { width: min(88vw, 390px); border: 1px solid var(--line); border-radius: 8px; background: var(--shell); color: var(--app-text); }
dialog::backdrop { background: var(--dialog-backdrop); }
dialog h2 { margin: 6px 0 12px; font: var(--font-weight-semibold) var(--type-dialog-title) var(--font-family-display); }
dialog p { line-height: 1.5; }
.dialog-steps { display: grid; gap: 10px; margin-bottom: 18px; }
dialog button { width: 100%; border: 1px solid var(--dialog-border); border-radius: 4px; background: var(--paper); color: var(--ink); padding: 12px; font-weight: var(--font-weight-bold); }

@media (max-width: 470px) {
  .app-shell { gap: 12px; padding-top: max(10px, env(safe-area-inset-top)); }
  .app-bar { align-items: flex-start; }
  .app-actions { max-width: 160px; flex-wrap: wrap; }
  .reader { justify-content: flex-start; border-radius: 13px; }
  .device-screen { min-height: 0; }
  .screen-copy { padding: 10px; }
  .screen-header-copy { min-height: 46px; padding-right: 92px; }
  .screen-header-copy.focus-header { min-height: 38px; }
  .header-summary { gap: 3px 6px; }
  .feast-banner { top: 10px; right: 10px; max-width: 48%; }
  .pixel-art-stack { top: 10px; right: 10px; }
  .device-screen.has-feast .pixel-art-stack { top: 38px; }
  .app-footer { font-size: var(--type-footer); }
  .platform-steps { grid-template-columns: 1fr; }
}

@media (display-mode: standalone), (display-mode: fullscreen) {
  .app-shell { padding-top: max(10px, env(safe-area-inset-top)); }
  .install-guide { display: none; }
}

@media (orientation: portrait) {
  .reader {
    min-height: calc(100dvh - max(104px, calc(env(safe-area-inset-top) + 82px)));
    justify-content: flex-start;
  }
  .device-screen { flex: 1; min-height: 0; aspect-ratio: auto; }
  .grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, auto);
    align-content: center;
    gap: var(--space-reading-group);
    margin-top: 0;
  }
  .reading { justify-content: flex-start; }
  .grid .cite { min-height: 0; }
  .header-summary {
    display: block;
  }
  .date-line { display: grid; gap: 7px; }
  .header-primary, .header-secondary { display: flex; min-width: 0; align-items: center; gap: 12px; }
  .weekday-line { display: flex; align-items: center; gap: 4px; }
  .date-value { flex: none; white-space: nowrap; }
  .meta { min-width: 0; }
  .feast-banner {
    position: static;
    width: fit-content;
    max-width: 100%;
    margin: 0;
  }
  .pixel-art-stack,
  .device-screen.has-feast .pixel-art-stack {
    top: clamp(92px, 24vw, 126px);
    right: auto;
    left: clamp(13px, 3vw, 22px);
    gap: clamp(10px, 3vw, 16px);
  }
}

@media (orientation: landscape) and (max-height: 700px) {
  html, body { width: 100%; height: 100%; overflow: hidden; background: var(--paper); }
  .app-shell { display: block; width: 100vw; min-height: 0; height: 100dvh; padding: 0; }
  .app-bar, .navigation-controls, .app-footer { display: none; }
  .reader { display: block; width: 100%; height: 100%; padding: 0; border: 0; border-radius: 0; background: var(--paper); box-shadow: none; }
  .device-screen {
    width: 100vw;
    height: 100dvh;
    min-height: 0;
    aspect-ratio: auto;
    border: 0;
    border-radius: 0;
    box-shadow: var(--landscape-screen-shadow);
  }
  .screen-copy {
    padding:
      max(26px, calc(env(safe-area-inset-top) + 6px))
      max(44px, calc(env(safe-area-inset-right) + 16px))
      max(28px, calc(env(safe-area-inset-bottom) + 8px))
      max(44px, calc(env(safe-area-inset-left) + 16px));
  }
  .screen-header-copy { min-height: min(18vh, 72px); padding-right: min(46vw, 300px); }
  .screen-header-copy.focus-header { min-height: min(16vh, 64px); }
  .header-summary { gap: 5px 10px; }
  .feast-banner {
    top: max(26px, calc(env(safe-area-inset-top) + 6px));
    right: max(44px, calc(env(safe-area-inset-right) + 16px));
    max-width: 45vw;
    padding: clamp(4px, 1vh, 7px) 10px;
  }
  .grid {
    gap: clamp(14px, 4vh, 30px) clamp(28px, 7vw, 84px);
    margin-top: clamp(8px, 2vh, 16px);
  }
  .reading { align-self: stretch; padding: clamp(4px, 1.5vh, 12px) 0; }
  .cite { line-height: 1.2; }
  .pixel-art-stack {
    top: max(26px, calc(env(safe-area-inset-top) + 6px));
    right: max(44px, calc(env(safe-area-inset-right) + 16px));
  }
  .pixel-art-stack .pixel-art {
    width: min(13vh, 52px);
    height: auto;
  }
  .device-screen.has-feast .pixel-art-stack { top: max(62px, calc(env(safe-area-inset-top) + 48px)); }
  .focus { width: 100%; padding: clamp(12px, 4vh, 28px) 0; transform: translateY(clamp(-54px, -8vh, -32px)); }
  .focus-cite { line-height: 1; }
  .prayer-text { line-height: 1.18; }
}

:is(.reader:fullscreen, .reader.fullscreen-fallback) {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  padding: clamp(12px, 2vw, 24px);
  border: 0;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  justify-content: stretch;
  gap: clamp(12px, 2vh, 20px);
  background: linear-gradient(145deg, var(--shell-raised), var(--shell));
  box-shadow: none;
}
.reader.fullscreen-fallback { position: fixed; z-index: 1000; inset: 0; }
:is(.reader:fullscreen, .reader.fullscreen-fallback) .fullscreen-exit { position: absolute; z-index: 5; top: clamp(18px, 2vw, 28px); right: clamp(18px, 2vw, 28px); display: grid; place-items: center; border: 1px solid var(--line); border-radius: 3px; background: var(--control); color: var(--control-text); padding: 8px 11px; cursor: pointer; }
:is(.reader:fullscreen, .reader.fullscreen-fallback) .device-screen {
  flex: 1;
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: auto;
}
:is(.reader:fullscreen, .reader.fullscreen-fallback) .navigation-controls { display: grid; flex: none; width: 100%; margin-top: auto; padding-bottom: max(8px, env(safe-area-inset-bottom)); }
:is(.reader:fullscreen, .reader.fullscreen-fallback) .navigation-controls button { min-height: clamp(68px, 12vh, 96px); }

@media (min-width: 768px) and (min-height: 700px) {
  .grid .cite { line-height: 1.08; }

  :is(.reader:fullscreen, .reader.fullscreen-fallback) .grid { gap: clamp(28px, 5vh, 72px) clamp(48px, 8vw, 140px); }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .grid .cite { line-height: 1.05; }
}

@media (orientation: landscape) and (max-height: 700px) {
  :is(.reader:fullscreen, .reader.fullscreen-fallback) { display: block; padding: 0; gap: 0; background: var(--paper); }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .device-screen { width: 100vw; height: 100dvh; flex: none; }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .navigation-controls,
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .fullscreen-exit { display: none; }
}

@media (orientation: portrait) {
  .grid .cite { line-height: 1.05; }
  .focus .label { line-height: 1.2; }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) {
    padding: max(8px, env(safe-area-inset-top)) 0 0;
    gap: 0;
  }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .device-screen {
    border-left: 0;
    border-right: 0;
    border-radius: 0;
  }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .screen-copy {
    padding-right: max(18px, env(safe-area-inset-right));
    padding-left: max(18px, env(safe-area-inset-left));
  }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .navigation-controls {
    gap: clamp(8px, 2vw, 14px);
    margin-top: 0;
    padding-top: clamp(10px, 1.8vh, 16px);
    padding-right: max(12px, env(safe-area-inset-right));
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    padding-left: max(12px, env(safe-area-inset-left));
  }
  :is(.reader:fullscreen, .reader.fullscreen-fallback) .fullscreen-exit {
    top: max(12px, calc(env(safe-area-inset-top) + 6px));
    right: max(12px, env(safe-area-inset-right));
  }
}

@media (max-width: 767px), (hover: none) and (pointer: coarse) {
  html.mobile-reader-expanded, html.mobile-reader-expanded body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--paper);
  }
  html.mobile-reader-expanded .app-bar,
  html.mobile-reader-expanded .app-footer { display: none; }
  html.mobile-reader-expanded .reader {
    position: fixed;
    z-index: 1000;
    inset: 0;
    display: block;
    width: 100vw;
    max-width: none;
    min-height: 0;
    height: 100dvh;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: var(--paper);
    box-shadow: none;
  }
  html.mobile-reader-expanded .device-screen {
    width: 100vw;
    height: 100dvh;
    min-height: 0;
    aspect-ratio: auto;
    border: 0;
    border-radius: 0;
    box-shadow: inset 0 0 24px color-mix(in srgb, var(--paper-shadow) 28%, transparent);
  }
  html.mobile-reader-expanded .reader .navigation-controls { display: none; }
  html.mobile-reader-expanded .reader .fullscreen-exit {
    position: absolute;
    z-index: 6;
    top: max(12px, calc(env(safe-area-inset-top) + 6px));
    right: max(12px, env(safe-area-inset-right));
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid var(--screen-border);
    border-radius: 2px;
    background: var(--paper);
    color: var(--ink);
    padding: 0;
    cursor: pointer;
  }
}

@media (orientation: portrait) and (max-width: 767px),
  (orientation: portrait) and (hover: none) and (pointer: coarse) {
  .header-summary { line-height: 1.25; }
  .date-line { font-size: inherit; }
  .meta-separator { display: none; }
  .screen-header-copy {
    min-height: clamp(132px, 35vw, 160px);
    padding-right: clamp(52px, 15vw, 64px);
  }
  .screen-header-copy.focus-header { min-height: clamp(124px, 33vw, 150px); }
  .screen-copy {
    padding:
      max(24px, calc(env(safe-area-inset-top) + 8px))
      max(18px, env(safe-area-inset-right))
      max(20px, calc(env(safe-area-inset-bottom) + 8px))
      max(18px, env(safe-area-inset-left));
  }
  html.mobile-reader-expanded .pixel-art-stack,
  html.mobile-reader-expanded .device-screen.has-feast .pixel-art-stack {
    top: max(96px, calc(env(safe-area-inset-top) + 80px));
    right: auto;
    left: max(18px, env(safe-area-inset-left));
  }
}

@media (orientation: landscape) and (max-height: 700px) {
  html.mobile-reader-expanded .reader .fullscreen-exit { display: none; }
}

@media (prefers-reduced-motion: no-preference) {
  .device-screen { animation: eink-refresh .22s steps(2, end); }
  @keyframes eink-refresh { 0% { filter: invert(1); } 45% { filter: invert(.15); } 100% { filter: none; } }
}