*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.45;
  font-synthesis-weight: none;
}
/* Arabic interface (Saudi or MSA): right-to-left, Kufi for Arabic text, Alegreya still for Latin. */
html[dir="rtl"] body { font-family: var(--font-ui-ar); line-height: 1.6; }
.ar { font-family: var(--font-ar); direction: rtl; unicode-bidi: isolate; }
.ar-in { font-size: 1.12em; line-height: 1; }
.lat { direction: ltr; unicode-bidi: isolate; }
button, select, input { font: inherit; color: inherit; }
button, select { cursor: pointer; touch-action: manipulation; }
button:disabled { cursor: default; opacity: .45; }
a { color: var(--accent); font-weight: 700; touch-action: manipulation; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 15px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
h1, h2, h3 { text-wrap: balance; }
p, li { text-wrap: pretty; }
kbd {
  font: 700 12px/1 var(--font-ui);
  padding: 3px 6px;
  border: 1.5px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
}
.i { width: 20px; height: 20px; flex: 0 0 auto; vertical-align: -4px; }
html[dir="rtl"] .flip-rtl { transform: scaleX(-1); }

/* The first Tab stop: jump past the menu. */
.skip {
  position: fixed; z-index: 100; top: 10px; inset-inline-start: 10px; padding: 10px 16px; border-radius: 10px;
  background: var(--strong-bg); color: var(--strong-ink); text-decoration: none; transform: translateY(-160%);
}
.skip:focus-visible { transform: none; outline-color: var(--ink); }

/* ---------- App shell: sidebar + page ---------- */
.app {
  display: grid;
  grid-template-columns: 252px minmax(0, 1fr);
  min-height: 100vh;
  min-height: 100dvh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 16px 16px;
  background: var(--sidebar-bg);
  color: var(--sidebar-ink);
  border-inline-end: 1.5px solid var(--line);
  scrollbar-width: thin;
}
.sidebar :focus-visible { outline-color: var(--sidebar-ink); }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 6px;
  color: var(--sidebar-ink);
  text-decoration: none;
}
.brand-mark { width: 38px; height: 38px; flex: 0 0 auto; fill: var(--brand-ar); }
.brand-mark .bm-cut { fill: var(--sidebar-bg); }
.brand-words { display: flex; align-items: baseline; gap: 8px; line-height: 1; }
.brand-lat { font-size: 28px; font-weight: 800; letter-spacing: -.01em; }
.brand .ar { font-family: "Noto Kufi Arabic", var(--font-ar); color: var(--brand-ar); font-size: 22px; font-weight: 800; }

.daypill {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 2px 8px;
  padding: 10px 12px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--sidebar-ink) 8%, transparent);
  font-variant-numeric: tabular-nums;
}
.daypill b { font-size: 19px; font-weight: 800; }
.daypill > span:not(.meter) { color: var(--sidebar-muted); }
.daypill .meter, .daypill small { grid-column: 1 / -1; }
.daypill small { color: var(--sidebar-muted); font-size: 14px; font-weight: 700; }
.daypill .meter { margin: 6px 0 2px; background: color-mix(in srgb, var(--sidebar-ink) 18%, transparent); }
.daypill .meter > span { background: var(--pill-meter); }

/* The running study timer, visible from every page. */
.timerpill {
  display: flex; align-items: center; gap: 6px; padding: 4px 4px 4px 12px; border-radius: 12px;
  background: var(--sidebar-ink); color: var(--sidebar-bg); font-variant-numeric: tabular-nums;
}
html[dir="rtl"] .timerpill { padding: 4px 12px 4px 4px; }
.timerpill a { display: flex; align-items: center; gap: 8px; flex: 1; color: inherit; text-decoration: none; font-weight: 800; font-size: 18px; }
.timerpill a .i { animation: pulse 2s ease-in-out infinite; }
.tp-stop {
  display: flex; align-items: center; gap: 4px; padding: 6px 10px; border: 0; border-radius: 9px;
  background: color-mix(in srgb, var(--sidebar-bg) 12%, transparent); color: inherit; font-weight: 800; font-size: 14px;
}
.tp-stop .i { width: 16px; height: 16px; }
.timerpill :focus-visible { outline-color: var(--sidebar-bg); }
@keyframes pulse { 50% { opacity: .45; } }

.cloudpill {
  display: flex; align-items: center; gap: 8px; margin-top: -4px; padding: 0 12px;
  color: var(--sidebar-muted); font-size: 13.5px; font-weight: 700; text-decoration: none;
}
.cloudpill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--sidebar-muted); opacity: .6; }
.cloudpill[data-state="saved"]::before { background: var(--pill-ok); opacity: 1; }
.cloudpill[data-state="error"]::before { background: var(--bad); opacity: 1; }

.menu { display: flex; flex-direction: column; gap: 12px; flex: 1; }
.menu-head { display: none; }
nav { display: flex; flex-direction: column; gap: 1px; }
.navhead {
  margin: 10px 10px 3px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--sidebar-muted);
}
html[dir="rtl"] .navhead { letter-spacing: 0; font-size: 13.5px; }
nav a {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 7px 10px;
  border-radius: 10px;
  color: var(--sidebar-ink);
  text-decoration: none;
  font-weight: 700;
  transition: background-color .15s ease;
}
nav a .i { opacity: .9; }
nav a:hover { background: color-mix(in srgb, var(--sidebar-ink) 10%, transparent); }
nav a[aria-current="page"] { background: var(--nav-on-bg); color: var(--nav-on-ink); }
.navcount {
  margin-inline-start: auto; min-width: 24px; padding: 1px 7px; border-radius: 99px; text-align: center;
  background: var(--sidebar-ink); color: var(--sidebar-bg); font-size: 13px; font-weight: 800; font-variant-numeric: tabular-nums;
}
nav a[aria-current="page"] .navcount { background: var(--nav-on-ink); color: var(--nav-on-bg); }

.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
/* Edit: under the sun/moon on the computer, in the top bar on the iPad and iPhone */
.edit-fab {
  position: fixed; z-index: 25; top: 74px; inset-inline-end: 14px; width: 50px; min-height: 54px; padding: 7px 2px 6px;
  display: grid; justify-items: center; gap: 1px; border: 0; border-radius: 16px; cursor: pointer;
  background: var(--surface); color: var(--ink); font: inherit; font-size: 12.5px; font-weight: 800; line-height: 1.1;
  box-shadow: 0 0 0 1px var(--line), 0 8px 24px -12px rgba(11, 46, 28, .35);
  transition: background-color .2s ease, transform .15s ease;
}
.edit-fab svg { width: 22px; height: 22px; }
.edit-fab:hover { transform: scale(1.05); }
.edit-fab:active { transform: scale(.95); }
.edit-fab[aria-pressed="true"] { background: #F4C24D; color: #2A1B06; box-shadow: 0 0 0 3px rgba(244, 194, 77, .35); }
.edit-fab:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.profile-box { display: flex; flex-direction: column; gap: 6px; }
.profile-box .logout { justify-content: center; }
.logout {
  display: inline-flex; align-items: center; gap: 5px; min-height: 40px; padding: 7px 10px; flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--sidebar-ink) 18%, transparent); border-radius: 11px;
  background: none; color: var(--sidebar-ink); font: inherit; font-size: 13.5px; font-weight: 700; cursor: pointer;
}
.logout svg { width: 18px; height: 18px; }
html[dir="rtl"] .logout svg { transform: scaleX(-1); }
.logout:hover { background: color-mix(in srgb, var(--sidebar-ink) 9%, transparent); }
.profile-switch {
  display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 40px; padding: 7px 12px;
  border: 1px solid color-mix(in srgb, var(--sidebar-ink) 18%, transparent); border-radius: 11px;
  background: none; color: var(--sidebar-ink); font: inherit; font-size: 14.5px; cursor: pointer; text-align: start;
}
.profile-switch:hover { background: color-mix(in srgb, var(--sidebar-ink) 9%, transparent); }
.profile-switch .ps-who { font-weight: 800; }
.profile-switch .ps-do { color: var(--sidebar-muted); font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
.foot-label { font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--sidebar-muted); margin-inline-end: auto; }
html[dir="rtl"] .foot-label { letter-spacing: 0; }
.langs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px; padding: 3px; border-radius: 11px; background: color-mix(in srgb, var(--sidebar-ink) 9%, transparent); }
.langs button {
  padding: 6px 0; border: 0; border-radius: 8px; background: transparent;
  color: var(--sidebar-muted); font-weight: 800; font-size: 14px; letter-spacing: .02em;
}
.langs button[lang^="ar"] { font-family: "Noto Kufi Arabic", var(--font-ar); letter-spacing: 0; font-size: 13px; }
.langs button[aria-pressed="true"] { background: var(--nav-on-bg); color: var(--nav-on-ink); }
.langs button { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 7px 0 6px; font-weight: 800; }
/* Each language wears a round badge: the flag, a heart for Saudi Arabic, ض (the letter only Arabic has) for formal Arabic */
.lang-sign {
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; overflow: hidden;
  box-shadow: 0 0 0 1.5px color-mix(in srgb, var(--sidebar-ink) 22%, transparent); transition: transform .2s ease, box-shadow .2s ease;
}
.lang-flag > span { font-size: 34px; line-height: 1; transform: translateY(1px); }
.lang-heart { background: #FBE3E8; }
.lang-heart svg { width: 14px; height: 13px; }
.lang-heart path { fill: #D6455D; }
.lang-dad { background: #006C35; color: #fff; font-family: "Noto Kufi Arabic", var(--font-ar); font-weight: 800; font-size: 13px; line-height: 1; }
.langs button:hover .lang-sign { transform: scale(1.08); }
.langs button[aria-pressed="true"] .lang-sign { box-shadow: 0 0 0 2px var(--nav-on-bg), 0 0 0 3.5px var(--nav-on-ink); }
.palette { width: 34px; height: 34px; padding: 0; border: 0; border-radius: 50%; background: none; cursor: pointer; transition: transform .15s ease; }
.palette svg { width: 100%; height: 100%; display: block; }
.palette:hover { transform: scale(1.08); }
.palette[aria-pressed="true"] { outline: 2.5px solid var(--sidebar-ink); outline-offset: 2px; }
.themes { display: flex; align-items: center; gap: 6px; padding: 0 4px; }
.themes button {
  width: 24px; height: 24px; padding: 0; border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--sidebar-ink) 30%, transparent);
  background: var(--sw);
}
.themes button[aria-pressed="true"] { outline: 2.5px solid var(--sidebar-ink); outline-offset: 2px; }

/* The bottom tab bar exists only on phones and tablets in portrait. */
.tabbar { display: none; }

main {
  width: 100%;
  max-width: 1560px;
  margin: 0 auto;
  padding: 32px 44px 72px;
}
main:focus, main:focus-visible, #view:focus, #view:focus-visible { outline: none; }
@media (min-width: 1700px) {
  body { font-size: 18px; }
  main { padding: 40px 64px 80px; }
}

/* ---------- Page heading: title, the zigzag parapet trim, and the page's illustration ---------- */
.page-head { position: relative; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; padding-bottom: 20px; margin-bottom: 24px; }
.page-head::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 10px;
  background:
    linear-gradient(135deg, transparent 50%, var(--trim) 50%) 0 0 / 14px 10px repeat-x,
    linear-gradient(225deg, transparent 50%, var(--trim) 50%) 0 0 / 14px 10px repeat-x;
  opacity: .9;
}
.page-head-text { min-width: 0; }
.page-head .vignette { flex: 0 0 auto; width: 150px; height: 112px; margin-bottom: 4px; }
html[dir="rtl"] .page-head .vignette { transform: scaleX(-1); }
.page-head.has-parapet { padding-bottom: 0; margin-bottom: 22px; }
.page-head.has-parapet::after { display: none; }
.eyebrow { margin: 0 0 6px; color: var(--muted); font-weight: 700; font-size: 16px; }
.eyebrow::first-letter, .month h3::first-letter { text-transform: uppercase; }
h1 { margin: 0; font-size: 42px; font-weight: 800; letter-spacing: -.015em; line-height: 1.1; }
html[dir="rtl"] h1 { letter-spacing: 0; }
h1 .of, h2 .of { color: var(--muted); font-weight: 700; font-size: .6em; }
.sub { margin: 8px 0 0; max-width: 70ch; color: var(--muted); font-size: 18px; }
h2 { margin: 0 0 8px; font-size: 22px; font-weight: 800; }
h3 { margin: 0 0 6px; font-size: 15px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
html[dir="rtl"] h3 { letter-spacing: 0; }

/* The sun or the moon, top right on every page: tap to switch light ↔ dark */
.sky-toggle {
  position: fixed; z-index: 25; top: 14px; inset-inline-end: 14px; width: 50px; height: 50px; padding: 0;
  display: grid; place-items: center; border: 0; border-radius: 50%; cursor: pointer;
  background: #CFE7EC; box-shadow: 0 0 0 1px rgba(11, 46, 28, .08), 0 8px 24px -10px rgba(11, 46, 28, .35);
  transition: background-color .4s ease, transform .15s ease;
}
.sky-toggle:hover { transform: scale(1.06); }
.sky-toggle:active { transform: scale(.94); }
.sky-toggle svg { grid-area: 1 / 1; width: 46px; height: 46px; transition: opacity .35s ease, transform .5s cubic-bezier(.2, .7, .2, 1); }
.st-sun circle:last-child { fill: #F4C24D; }
.st-sun .st-glow { fill: rgba(244, 194, 77, .28); }
.st-sun .st-rays { fill: #E8A93A; }
.st-moon .st-body, .st-moon .st-dot { fill: #F3EBD2; }
.st-moon .st-glow { fill: rgba(243, 235, 210, .13); }
.st-moon { opacity: 0; transform: rotate(-90deg) scale(.6); }
:root[data-theme="saudi-dark"] .sky-toggle, :root[data-theme="dark"] .sky-toggle { background: #0E2A1D; box-shadow: 0 0 0 1px rgba(243, 235, 210, .12), 0 8px 24px -10px rgba(0, 0, 0, .6); }
:root[data-theme="saudi-dark"] .st-moon, :root[data-theme="dark"] .st-moon { opacity: 1; transform: none; }
:root[data-theme="saudi-dark"] .st-sun, :root[data-theme="dark"] .st-sun { opacity: 0; transform: rotate(90deg) scale(.6); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .sky-toggle { background: #0E2A1D; box-shadow: 0 0 0 1px rgba(243, 235, 210, .12), 0 8px 24px -10px rgba(0, 0, 0, .6); }
  :root:not([data-theme]) .st-moon { opacity: 1; transform: none; }
  :root:not([data-theme]) .st-sun { opacity: 0; transform: rotate(90deg) scale(.6); }
}
.sky-toggle:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { .sky-toggle svg { transition: none; } }
@media (min-width: 861px) { .app > main { padding-inline-end: 84px; } } /* room for it beside the page */

/* ---------- iPad in landscape and smaller laptops ---------- */
@media (max-width: 1180px) {
  .app { grid-template-columns: 224px minmax(0, 1fr); }
  main { padding: 28px 30px 64px; }
}

/* ---------- iPad in portrait and iPhone: a top bar, a bottom tab bar, and "More" for the rest ---------- */
@media (max-width: 860px) {
  .app { display: block; }
  .sidebar {
    position: sticky; z-index: 20; top: 0; height: auto; overflow: visible;
    flex-direction: row; align-items: center; gap: 10px;
    padding: calc(8px + env(safe-area-inset-top)) calc(14px + env(safe-area-inset-right)) 8px calc(14px + env(safe-area-inset-left));
    border-inline-end: 0; border-bottom: 1.5px solid var(--line);
  }
  .brand-mark { width: 30px; height: 30px; }
  .brand-lat { font-size: 22px; }
  .brand .ar { font-size: 17px; }
  .daypill { margin-inline-start: auto; padding: 5px 10px; grid-template-columns: auto auto; }
  .sky-toggle { position: static; width: 42px; height: 42px; flex: 0 0 auto; }
  .edit-fab { position: static; order: 0; width: auto; min-height: 42px; padding: 0 14px; display: inline-flex; align-items: center; gap: 6px; border-radius: 99px; font-size: 15px; flex: 0 0 auto; }
  .edit-fab svg { width: 20px; height: 20px; }
  .sky-toggle svg { width: 40px; height: 40px; }
  .daypill .meter, .daypill small { display: none; }
  .daypill b { font-size: 16px; }
  .daypill > span:not(.meter) { font-size: 14px; }
  .timerpill { padding-block: 2px; }
  .timerpill a { font-size: 15px; }
  .tp-stop span { display: none; }
  .cloudpill { display: none; }

  /* "More": the full menu as a sheet over the page */
  .menu {
    position: fixed; z-index: 40; inset: 0; display: none; overflow-y: auto; overscroll-behavior: contain;
    padding: calc(12px + env(safe-area-inset-top)) calc(18px + env(safe-area-inset-right)) calc(96px + env(safe-area-inset-bottom)) calc(18px + env(safe-area-inset-left));
    background: var(--sidebar-bg); color: var(--sidebar-ink);
  }
  .menu-open .menu { display: flex; animation: sheet-in .22s cubic-bezier(.2, .7, .2, 1); }
  .menu-open { overflow: hidden; }
  @keyframes sheet-in { from { opacity: 0; transform: translateY(12px); } }
  .menu-head { display: flex; align-items: center; justify-content: space-between; }
  .menu-head p { margin: 0; font-size: 22px; font-weight: 800; }
  .menu-close { width: 44px; height: 44px; display: grid; place-items: center; border: 0; border-radius: 50%; background: color-mix(in srgb, var(--sidebar-ink) 12%, transparent); color: inherit; }
  nav a { padding: 11px 12px; font-size: 18px; }
  .sidebar-foot { margin-top: 12px; }
  .langs button { padding: 10px 0; font-size: 16px; }
  .themes button { width: 36px; height: 36px; }

  .tabbar {
    position: fixed; z-index: 30; inset-inline: 0; bottom: 0; display: grid; grid-template-columns: repeat(5, 1fr);
    padding: 6px calc(6px + env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) calc(6px + env(safe-area-inset-left));
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    -webkit-backdrop-filter: saturate(1.6) blur(16px); backdrop-filter: saturate(1.6) blur(16px);
    border-top: 1px solid var(--line);
  }
  .tabbar a, .tabbar button {
    position: relative; display: flex; flex-direction: column; align-items: center; gap: 3px; min-height: 50px; padding: 6px 2px 4px;
    border: 0; border-radius: 12px; background: none; color: var(--muted); text-decoration: none; font-size: 11.5px; font-weight: 800; line-height: 1.1;
  }
  html[dir="rtl"] .tabbar a, html[dir="rtl"] .tabbar button { font-size: 12px; }
  .tabbar .i { width: 25px; height: 25px; }
  .tabbar [aria-current="page"], .tabbar [aria-expanded="true"] { background: none; color: var(--accent); }
  .tabbar [aria-current="page"] .navcount { background: var(--c-learn); color: #fff; }
  .tabbar .navcount { position: absolute; top: 2px; inset-inline-start: calc(50% + 6px); margin: 0; min-width: 20px; padding: 0 5px; font-size: 11px; background: var(--c-learn); color: #fff; }

  main { padding: 22px calc(16px + env(safe-area-inset-right)) calc(96px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left)); }
  h1 { font-size: 32px; }
  .sub { font-size: 16.5px; }
  .page-head .vignette { width: 104px; height: 78px; }
}
@media (max-width: 420px) {
  .brand-words .ar { display: none; }
  .edit-fab { width: 42px; padding: 0; justify-content: center; }
  .edit-fab span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .page-head .vignette { display: none; }
}

/* Touch screens: every control at least 44px tall. */
@media (pointer: coarse) {
  .btn, .chip, .tabs a, .opt, .cal-day { min-height: 44px; }
  nav a { min-height: 44px; }
}

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

/* ---------- Texture and the Sadu edge ---------- */
/* A faint grain of sand over the page background. */
body { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .52 0 0 0 0 .4 0 0 0 0 .24 .16 0 0 0 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
/* A band of Sadu weave down the edge of the menu (computer and iPad in landscape). */
@media (min-width: 861px) {
  .sidebar { border-inline-end: 0; padding-inline-end: 26px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='28' viewBox='0 0 14 28'%3E%3Crect width='14' height='28' fill='%239E2A2B'/%3E%3Cpath fill='%23231A14' d='M0 0h2v28H0zM12 0h2v28h-2z'/%3E%3Cpath fill='%23F3E7CF' d='M2 0l3 3.5L2 7l3 3.5L2 14l3 3.5L2 21l3 3.5L2 28zM12 0l-3 3.5L12 7l-3 3.5L12 14l-3 3.5L12 21l-3 3.5L12 28zM3.5 14L7 10l3.5 4L7 18z'/%3E%3Cpath fill='%23231A14' d='M5.5 14L7 12.4 8.5 14 7 15.6z'/%3E%3Cpath fill='%23006C35' d='M6.2 0h1.6v4H6.2zM6.2 24h1.6v4H6.2z'/%3E%3C/svg%3E");
    background-repeat: repeat-y; background-size: 12px 24px; background-position: right top; }
  html[dir="rtl"] .sidebar { background-position: left top; }
}