/* ==========================================================================
   فکر با هوش مصنوعی — quiz surface
   Vizhen design tokens, transcribed from the seminar deck's globals.css so the
   phones in the room and the screen behind the speaker read as one thing.
   ========================================================================== */

:root {
  --blue-deep: #0d57eb;
  --blue-azure: #2779f2;
  --blue-sky: #4dabfe;
  --blue-pale: #7ec6ff;
  --ink: #0a1124;
  --ink-2: #101a36;
  --ink-3: #16224a;
  --ink-deep: #060b18;
  --slate: #5c6b85;
  --mist: #eef3fb;
  --amber: #ffb23e;

  --grad-hero: linear-gradient(115deg, #0d57eb 0%, #2779f2 50%, #4dabfe 100%);
  --grad-amber: linear-gradient(115deg, #ffb23e 0%, #ffd79a 100%);

  /* The brand's signature shear — the logo blade, reused for badges. */
  --shear: -14deg;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Vazirmatn, served from this app rather than a font CDN — the room may be on
   a network that cannot reach one, and a fallback face would break the RTL
   rhythm the deck sets. Two subsets, so a phone only pulls the 46KB Arabic one
   unless the page actually shows Latin. */
@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/vazirmatn-arabic.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+08A0-08FF, U+200C-200E,
    U+2010-2011, U+FB50-FDFF, U+FE70-FEFC;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/vazirmatn-latin.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+20AC, U+2122,
    U+2212, U+FEFF, U+FFFD;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--ink-deep);
  color: #fff;
  font-family: 'Vazirmatn', 'SF Arabic', 'Geeza Pro', 'Noto Naskh Arabic',
    'Segoe UI', Tahoma, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior-y: contain;
}

body {
  direction: rtl;
}

.lat {
  direction: ltr;
  unicode-bidi: isolate;
  font-family: 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.num {
  direction: ltr;
  unicode-bidi: isolate;
  font-variant-numeric: tabular-nums;
}

/* --- Ambient ------------------------------------------------------------- */

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 15% 0%, rgba(13, 87, 235, 0.28) 0%, transparent 60%),
    radial-gradient(100% 70% at 90% 100%, rgba(77, 171, 254, 0.16) 0%, transparent 55%),
    var(--ink-deep);
}

.bg::after {
  /* The Cut — the brand's diagonal texture, at a whisper. */
  content: '';
  position: absolute;
  inset: -20%;
  background-image: repeating-linear-gradient(
    115deg,
    transparent 0 46px,
    rgba(255, 255, 255, 0.022) 46px 48px
  );
}

/* --- Primitives ---------------------------------------------------------- */

.blade {
  transform: skewX(var(--shear));
}
.blade > * {
  transform: skewX(calc(var(--shear) * -1));
}

.surface {
  background: linear-gradient(
    158deg,
    rgba(28, 44, 88, 0.9) 0%,
    rgba(14, 23, 48, 0.94) 46%,
    rgba(10, 17, 36, 0.96) 100%
  );
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 24px 60px -24px rgba(0, 0, 0, 0.75);
}

.grad-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grad-text-amber {
  background: var(--grad-amber);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(77, 171, 254, 0.72);
  direction: ltr;
  unicode-bidi: isolate;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: var(--r-md);
  background: var(--grad-hero);
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 18px;
  padding: 17px 26px;
  cursor: pointer;
  transition: transform 0.18s var(--ease), filter 0.18s var(--ease);
  box-shadow: 0 14px 34px -14px rgba(13, 87, 235, 0.9);
}
.btn:active {
  transform: scale(0.975);
}
.btn:disabled {
  opacity: 0.42;
  cursor: default;
  box-shadow: none;
}
.btn.ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: none;
  font-weight: 600;
}
.btn.amber {
  background: var(--grad-amber);
  color: #2a1b04;
  box-shadow: 0 14px 34px -14px rgba(255, 178, 62, 0.8);
}

input[type='text'],
input[type='tel'] {
  width: 100%;
  border-radius: var(--r-md);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
  font-size: 18px;
  padding: 16px 18px;
  outline: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}
input:focus {
  border-color: rgba(77, 171, 254, 0.7);
  background: rgba(77, 171, 254, 0.08);
}
input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.err {
  color: #ff9d9d;
  font-size: 15px;
  min-height: 20px;
  margin: 0;
}

/* ==========================================================================
   STUDENT — phone first
   ========================================================================== */

.phone {
  max-width: 560px;
  margin: 0 auto;
  padding: 22px 18px 40px;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.brandbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: clamp(12px, 2.2vh, 24px);
}

.brandbar .mark {
  display: flex;
  align-items: center;
  gap: 11px;
}
.brandbar svg {
  width: 30px;
  height: 30px;
  flex: none;
}
.brandbar .who {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
}

/* The screen inside owns the remaining height, so short states sit centred
   and long ones (a question with four options) grow downward instead. */
#app {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.card {
  border-radius: var(--r-xl);
  padding: 26px 22px;
}

.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(10px, 1.9vh, 18px);
  animation: rise 0.42s var(--ease) both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

h1 {
  font-size: 30px;
  line-height: 1.42;
  font-weight: 800;
  margin: 0;
}

.lede {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
  margin: 0;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 104px;
  gap: 12px;
}

label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 8px;
}

/* --- Question ------------------------------------------------------------ */

.qhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.qcount {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}

.timer {
  --pct: 100;
  height: 7px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.timer > i {
  display: block;
  height: 100%;
  width: calc(var(--pct) * 1%);
  background: var(--grad-hero);
  border-radius: 99px;
  transition: width 0.25s linear;
}
.timer.low > i {
  background: linear-gradient(115deg, #ff8a5c, #ffb23e);
}

/* A timed question must fit the phone without scrolling: a student who has to
   scroll to find option D loses speed-bonus points for a layout reason. Type
   and padding scale with viewport height so a small phone tightens up while a
   large one stays comfortable. */
.stem {
  font-size: clamp(17.5px, 2.55vh, 23px);
  line-height: 1.6;
  font-weight: 700;
  margin: clamp(10px, 1.6vh, 14px) 0 clamp(12px, 2.2vh, 22px);
}

.options {
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.3vh, 12px);
}

.opt {
  display: flex;
  align-items: center;
  gap: clamp(11px, 1.8vw, 15px);
  width: 100%;
  text-align: start;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.035);
  color: #fff;
  font: inherit;
  font-size: clamp(15px, 2.05vh, 17.5px);
  line-height: 1.5;
  padding: clamp(11px, 1.55vh, 16px) clamp(12px, 3.5vw, 16px);
  cursor: pointer;
  transition: transform 0.16s var(--ease), border-color 0.16s var(--ease),
    background 0.16s var(--ease), opacity 0.2s var(--ease);
}
.opt:active {
  transform: scale(0.985);
}

.opt .key {
  flex: none;
  width: clamp(34px, 4.7vh, 42px);
  height: clamp(34px, 4.7vh, 42px);
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  font-weight: 800;
  font-size: 19px;
  color: #fff;
  transform: skewX(var(--shear));
}
.opt .key > span {
  display: block;
  transform: skewX(calc(var(--shear) * -1));
}

/* A four-step ramp down the brand's single blue spectrum. The letter badge —
   not hue — is what tells the options apart, which keeps this legible for
   colour-blind students and on a washed-out projector alike. */
.opt[data-k='A'] .key { background: var(--blue-deep); }
.opt[data-k='B'] .key { background: var(--blue-azure); }
.opt[data-k='C'] .key { background: var(--blue-sky); color: #06122b; }
.opt[data-k='D'] .key { background: var(--blue-pale); color: #06122b; }

.opt.picked {
  border-color: rgba(77, 171, 254, 0.85);
  background: rgba(39, 121, 242, 0.17);
  box-shadow: 0 0 0 1px rgba(77, 171, 254, 0.4), 0 16px 40px -18px rgba(13, 87, 235, 0.9);
}
.opt.dim {
  opacity: 0.34;
}
.opt.right {
  border-color: rgba(93, 226, 160, 0.8);
  background: rgba(46, 190, 130, 0.16);
  opacity: 1;
}
.opt.wrong {
  border-color: rgba(255, 122, 122, 0.65);
  background: rgba(226, 78, 78, 0.14);
  opacity: 1;
}
.opt:disabled {
  cursor: default;
}

/* --- Verdict ------------------------------------------------------------- */

.verdict {
  text-align: center;
  padding: 30px 22px;
  border-radius: var(--r-xl);
}
.verdict.good {
  background: linear-gradient(158deg, rgba(46, 190, 130, 0.22), rgba(10, 17, 36, 0.9));
  border: 1px solid rgba(93, 226, 160, 0.4);
}
.verdict.bad {
  background: linear-gradient(158deg, rgba(226, 78, 78, 0.18), rgba(10, 17, 36, 0.9));
  border: 1px solid rgba(255, 122, 122, 0.34);
}
.verdict .big {
  font-size: 34px;
  font-weight: 800;
  margin: 0 0 8px;
}
.verdict .pts {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.1;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 4px;
}
.stat {
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 10px;
  text-align: center;
}
.stat b {
  display: block;
  font-size: 25px;
  font-weight: 800;
}
.stat span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.44);
}

.explain {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.66);
  border-inline-start: 3px solid var(--blue-azure);
  padding-inline-start: 14px;
  margin: 0;
}

/* --- Prize --------------------------------------------------------------- */

.prize {
  border-radius: var(--r-xl);
  padding: 26px 22px;
  background: linear-gradient(158deg, rgba(255, 178, 62, 0.2), rgba(10, 17, 36, 0.92));
  border: 1px solid rgba(255, 178, 62, 0.42);
}
.prize ul {
  margin: 14px 0 0;
  padding-inline-start: 20px;
  font-size: 16px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.8);
}

/* ==========================================================================
   PRESENT — the projected screen
   ========================================================================== */

.stage {
  min-height: 100vh;
  min-height: 100dvh;
  padding: 3.2vh 3.6vw;
  display: flex;
  flex-direction: column;
  gap: 2.4vh;
}

.stage-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex: none;
}
.stage-head svg {
  width: clamp(34px, 3.4vw, 56px);
  height: clamp(34px, 3.4vw, 56px);
}
.stage-title {
  font-size: clamp(17px, 1.5vw, 26px);
  font-weight: 700;
}
.stage-sub {
  font-size: clamp(11px, 0.85vw, 15px);
  color: rgba(255, 255, 255, 0.4);
}

.stage-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: rise 0.5s var(--ease) both;
  min-height: 0;
}

.join-split {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5vw;
  align-items: center;
}

.qr-card {
  background: #fff;
  border-radius: var(--r-xl);
  padding: 20px;
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.85);
  line-height: 0;
}
.qr-card svg,
.qr-card img {
  width: clamp(210px, 21vw, 340px);
  height: auto;
  display: block;
}

.joinurl {
  display: inline-block;
  margin-top: 2.2vh;
  font-size: clamp(18px, 1.7vw, 30px);
  font-weight: 700;
  direction: ltr;
  unicode-bidi: isolate;
  padding: 12px 22px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.headline {
  font-size: clamp(30px, 4vw, 74px);
  font-weight: 800;
  line-height: 1.28;
  margin: 0;
}

.counter {
  font-size: clamp(56px, 8vw, 150px);
  font-weight: 800;
  line-height: 1;
}

.stage-stem {
  font-size: clamp(26px, 3.1vw, 60px);
  font-weight: 800;
  line-height: 1.42;
  margin: 0 0 3vh;
}

.stage-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6vh 1.6vw;
}

.stage-opt {
  display: flex;
  align-items: center;
  gap: 1.2vw;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.04);
  padding: 1.7vh 1.4vw;
  font-size: clamp(16px, 1.55vw, 30px);
  line-height: 1.5;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.stage-opt .key {
  flex: none;
  width: clamp(38px, 3.2vw, 62px);
  height: clamp(38px, 3.2vw, 62px);
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  font-weight: 800;
  font-size: clamp(17px, 1.5vw, 28px);
  transform: skewX(var(--shear));
}
.stage-opt .key > span {
  transform: skewX(calc(var(--shear) * -1));
}
.stage-opt[data-k='A'] .key { background: var(--blue-deep); }
.stage-opt[data-k='B'] .key { background: var(--blue-azure); }
.stage-opt[data-k='C'] .key { background: var(--blue-sky); color: #06122b; }
.stage-opt[data-k='D'] .key { background: var(--blue-pale); color: #06122b; }

.stage-opt .bar {
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: rgba(77, 171, 254, 0.16);
  transition: width 0.8s var(--ease);
  z-index: 0;
}
.stage-opt > * {
  position: relative;
  z-index: 1;
}
.stage-opt .pct {
  margin-inline-start: auto;
  font-weight: 800;
  font-size: clamp(15px, 1.3vw, 26px);
  color: rgba(255, 255, 255, 0.55);
}
.stage-opt.right {
  border-color: rgba(93, 226, 160, 0.85);
  background: rgba(46, 190, 130, 0.14);
  box-shadow: 0 0 60px -14px rgba(46, 190, 130, 0.6);
}
.stage-opt.right .bar {
  background: rgba(46, 190, 130, 0.22);
}
.stage-opt.faded {
  opacity: 0.38;
}

/* --- Leaderboard --------------------------------------------------------- */

.board {
  display: flex;
  flex-direction: column;
  gap: 1vh;
  overflow: hidden;
}

.row {
  display: flex;
  align-items: center;
  gap: 1.4vw;
  padding: 1.25vh 1.4vw;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  font-size: clamp(15px, 1.5vw, 28px);
  animation: rise 0.5s var(--ease) both;
}
.row .pos {
  flex: none;
  width: clamp(34px, 2.8vw, 54px);
  height: clamp(34px, 2.8vw, 54px);
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.07);
  transform: skewX(var(--shear));
}
.row .pos > span {
  transform: skewX(calc(var(--shear) * -1));
}
.row .nm {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.row .sc {
  margin-inline-start: auto;
  font-weight: 800;
}
.row.top1 {
  background: linear-gradient(115deg, rgba(255, 178, 62, 0.22), rgba(10, 17, 36, 0.9));
  border-color: rgba(255, 178, 62, 0.5);
}
.row.top1 .pos {
  background: var(--grad-amber);
  color: #2a1b04;
}
.row.top2,
.row.top3 {
  background: linear-gradient(115deg, rgba(39, 121, 242, 0.18), rgba(10, 17, 36, 0.9));
  border-color: rgba(77, 171, 254, 0.34);
}

/* --- The draw and the winner --------------------------------------------- */

.draw-wrap {
  text-align: center;
}
.draw-name {
  font-size: clamp(34px, 5.5vw, 104px);
  font-weight: 800;
  line-height: 1.2;
  min-height: 1.2em;
}
.draw-note {
  font-size: clamp(13px, 1.1vw, 20px);
  color: rgba(255, 255, 255, 0.42);
  margin-top: 1.6vh;
}
.seed {
  font-size: clamp(10px, 0.75vw, 13px);
  color: rgba(255, 255, 255, 0.26);
  direction: ltr;
  unicode-bidi: isolate;
  word-break: break-all;
  margin-top: 0.8vh;
}

.winner-card {
  text-align: center;
  padding: 4vh 3vw;
  border-radius: var(--r-xl);
  background: linear-gradient(158deg, rgba(255, 178, 62, 0.2), rgba(10, 17, 36, 0.94));
  border: 1px solid rgba(255, 178, 62, 0.45);
  box-shadow: 0 0 130px -34px rgba(255, 178, 62, 0.6);
  animation: pop 0.7s var(--ease) both;
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
}

.winner-name {
  font-size: clamp(38px, 6.4vw, 118px);
  font-weight: 800;
  line-height: 1.15;
  margin: 1.4vh 0;
}

.prize-row {
  display: flex;
  gap: 1.4vw;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.6vh;
}
.prize-chip {
  display: flex;
  align-items: center;
  gap: 0.8vw;
  padding: 1.3vh 1.6vw;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 178, 62, 0.34);
  font-size: clamp(13px, 1.25vw, 24px);
  font-weight: 600;
}

/* Confetti built from the brand blade rather than round dots. */
.confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 5;
}
.confetti i {
  position: absolute;
  top: -8vh;
  width: 10px;
  height: 22px;
  transform: skewX(var(--shear));
  animation: fall linear forwards;
}
@keyframes fall {
  to {
    transform: translateY(118vh) skewX(var(--shear)) rotate(220deg);
    opacity: 0;
  }
}

/* --- Presenter chrome ---------------------------------------------------- */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 15px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: clamp(11px, 0.9vw, 16px);
  color: rgba(255, 255, 255, 0.66);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: #3ddc84;
  box-shadow: 0 0 12px #3ddc84;
}
.dot.off {
  background: #ff7a7a;
  box-shadow: 0 0 12px #ff7a7a;
}

.hint {
  position: fixed;
  inset-block-end: 14px;
  inset-inline-start: 50%;
  transform: translateX(50%);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.28);
  pointer-events: none;
}

/* ==========================================================================
   CONTROL — presenter's phone
   ========================================================================== */

.ctl {
  max-width: 520px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.ctl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px;
  margin-top: 16px;
}

.ctl-grid .wide {
  grid-column: 1 / -1;
}

.big-btn {
  padding: 26px 18px;
  font-size: 20px;
  font-weight: 800;
  border-radius: var(--r-lg);
}

.state-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 17px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 15px;
}

.jump {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 12px;
}
.jump button {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-radius: var(--r-sm);
  padding: 13px 0;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.jump button.on {
  background: var(--grad-hero);
  border-color: transparent;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}