/* ==========================================================================
   Zee — Hkeeli's AI Lebanese instructor.

   Built entirely on the site's own tokens (css/tokens.css): the same sea/sand/
   citrus palette, the same radii, the same motion curve. Zee should read as a
   part of Hkeeli that happens to talk back, not as a support widget bolted onto
   the corner of somebody's website.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Launcher
   -------------------------------------------------------------------------- */
.zee-launcher {
  position: fixed;
  /* Sits above the mobile home indicator and inside the safe area on notched
     phones, where a plain `bottom: 20px` lands under the system gesture bar. */
  inset-block-end: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  inset-inline-end: calc(var(--space-5) + env(safe-area-inset-right, 0px));
  z-index: 60;

  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  height: 56px;
  padding-inline: 18px;
  border-radius: var(--radius-pill);
  background: var(--sea-deep);
  color: var(--sand-light);
  box-shadow: 0 10px 30px rgba(21, 53, 52, 0.28);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  animation: zee-arrive 0.5s var(--ease) both;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
}

/* The mark: a robot head on the citrus disc. */
.zee-launcher .zee-mark {
  /* Positioned so the pulse ring below has something to anchor to; without it
     the ring escapes to the page box and animates in the wrong corner. */
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--citrus);
  color: var(--sea-deep);
}

.zee-mark svg {
  width: 21px;
  height: 21px;
}

.zee-head .zee-mark svg {
  width: 23px;
  height: 23px;
}

/* A quiet pulse the first time only — enough to be noticed once, not a beacon. */
.zee-launcher .zee-mark::after {
  content: '';
  position: absolute;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--citrus);
  animation: zee-pulse 2.4s var(--ease) 3;
}

.zee-launcher[data-open='true'] .zee-mark::after {
  animation: none;
}

/* The `to` frame is not decoration: these animations run with fill-mode `both`,
   and a keyframe list with no end state holds the *start* state after the
   animation finishes — which left the panel 12px below the fold. */
@keyframes zee-arrive {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes zee-pulse {
  0% {
    opacity: 0.7;
    transform: scale(1);
  }
  70%,
  100% {
    opacity: 0;
    transform: scale(1.8);
  }
}

@media (hover: hover) {
  .zee-launcher:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(21, 53, 52, 0.34);
  }
}

.zee-launcher:active {
  transform: translateY(0);
}

/* On a phone the label would crowd the thumb zone; the mark alone is enough. */
@media (max-width: 559px) {
  .zee-launcher {
    height: 56px;
    width: 56px;
    padding: 0;
    justify-content: center;
  }

  .zee-launcher .zee-label {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Panel
   -------------------------------------------------------------------------- */
/* The panel is a fixed overlay, not a page section — but it lives in the same
   document as stylesheets that style bare elements (`section { padding: 64px
   var(--gutter) }` in layout.css was landing inside the chat window and pushing
   the header into the middle of it). The root is a <div> for that reason, and
   these two rules stop any future global rule reaching in the same way. */
.zee-panel,
.zee-panel * {
  box-sizing: border-box;
}

.zee-panel > * {
  margin: 0;
}

.zee-panel {
  padding: 0;
  position: fixed;
  inset-block-end: calc(var(--space-5) + 64px + env(safe-area-inset-bottom, 0px));
  inset-inline-end: calc(var(--space-5) + env(safe-area-inset-right, 0px));
  z-index: 61;

  display: flex;
  flex-direction: column;
  width: min(400px, calc(100vw - 2 * var(--space-4)));
  /* dvh, not vh: on iOS the address bar makes vh taller than the screen and the
     input ends up under the fold.
     190px is the room the panel leaves above and below itself: the launcher and
     its margin at the bottom, and the site's sticky nav at the top. Without it
     the panel grows over the nav on a short laptop screen. */
  height: min(600px, calc(100dvh - 190px));

  background: var(--sand-light);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(21, 53, 52, 0.24);
  overflow: hidden;
  animation: zee-open 0.22s var(--ease) both;
}

@keyframes zee-open {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.zee-panel[data-expanded='true'] {
  width: min(760px, calc(100vw - 2 * var(--space-5)));
  height: min(860px, calc(100dvh - 190px));
}

/* Full-screen on a phone: a floating card inside a 375px viewport is mostly
   border. Expanded mode keeps the rounded top edge as a sheet. */
@media (max-width: 559px) {
  .zee-panel {
    inset: auto 0 0 0;
    width: 100%;
    height: min(78dvh, 620px);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding-block-end: env(safe-area-inset-bottom, 0px);
  }

  .zee-panel[data-expanded='true'] {
    width: 100%;
    height: 100dvh;
    border-radius: 0;
  }
}

/* ---- Header ---- */
.zee-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-5);
  background: var(--sea-deep);
  color: var(--sand-light);
}

.zee-head .zee-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--citrus);
  color: var(--sea-deep);
}

.zee-title {
  flex: 1;
  min-width: 0;
}

.zee-title strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.2;
}

/* One line, truncated rather than wrapped: "AI Lebanese Instructor" breaking
   over three lines makes the header taller than the controls beside it. */
.zee-title span {
  display: block;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--on-dark-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zee-head-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.zee-icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  color: var(--sand-light);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease);
}

.zee-icon-btn svg {
  width: 18px;
  height: 18px;
}

@media (hover: hover) {
  .zee-icon-btn:hover {
    background: var(--wash-on-dark);
  }
}

.zee-icon-btn:focus-visible {
  outline: 3px solid var(--citrus);
  outline-offset: -2px;
}

/* Small phones (320-380px): the header has a 38px avatar, a title and three
   controls to fit. At default sizes "AI Lebanese Instructor" truncates to an
   ellipsis, so give the title its width back by tightening everything else. */
@media (max-width: 380px) {
  .zee-head {
    gap: var(--space-2);
    padding: var(--space-3) var(--space-2) var(--space-3) var(--space-3);
  }

  .zee-head .zee-mark {
    width: 34px;
    height: 34px;
  }

  .zee-head .zee-mark svg {
    width: 20px;
    height: 20px;
  }

  .zee-icon-btn {
    width: 34px;
    height: 34px;
  }

  .zee-title strong {
    font-size: 1rem;
  }

  .zee-title span {
    font-size: 0.7rem;
  }
}

/* ---- Log ---- */
.zee-log {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}

.zee-msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 88%;
  animation: zee-msg-in 0.2s var(--ease) both;
}

@keyframes zee-msg-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.zee-msg-who {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--olive);
}

.zee-bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  line-height: 1.55;
  /* Lebanese written in Latin letters, Arabic script and English all land in the
     same bubble; `dir: auto` per line is what keeps each one readable. */
  white-space: normal;
  overflow-wrap: anywhere;
}

.zee-msg[data-from='zee'] {
  align-self: flex-start;
}

.zee-msg[data-from='zee'] .zee-bubble {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-start-start-radius: var(--radius-sm);
  color: var(--ink);
}

.zee-msg[data-from='you'] {
  align-self: flex-end;
  align-items: flex-end;
}

.zee-msg[data-from='you'] .zee-msg-who {
  color: var(--ink-soft);
}

.zee-msg[data-from='you'] .zee-bubble {
  background: var(--sea-deep);
  color: var(--sand-light);
  border-start-end-radius: var(--radius-sm);
}

.zee-bubble p {
  margin: 0;
}

.zee-bubble p + p {
  margin-block-start: var(--space-2);
}

/* Lines inside a bubble. Ordinary prose is a plain block; the three lines of a
   taught phrase are grouped and styled so the learner can tell at a glance what
   to say, what it looks like written, and what it means. */
.zee-line {
  display: block;
}

.zee-phrase {
  display: block;
  margin-block: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-inline-start: 3px solid var(--citrus);
  border-radius: var(--radius-sm);
  background: var(--sand);
}

/* The line to read out loud. */
.zee-line--translit {
  font-weight: 700;
  font-size: 1.05em;
  color: var(--sea-deep);
  letter-spacing: 0.01em;
}

.zee-line--ar {
  font-family: var(--font-arabic);
  font-size: 1.5em;
  line-height: 1.45;
  color: var(--sea);
  margin-block-start: 2px;
}

.zee-line--gloss {
  margin-block-start: 2px;
  font-size: 0.92em;
  color: var(--ink-soft);
}

/* Arabic inside ordinary prose still needs the Arabic face, just not the
   full phrase-block treatment. */
.zee-bubble .zee-ar,
.zee-msg[data-from='zee'] .zee-line--text:lang(ar) {
  font-family: var(--font-arabic);
  font-size: 1.25em;
  line-height: 1.4;
}

/* On the dark bubble the phrase block borrows the on-dark palette instead. */
.zee-msg[data-from='you'] .zee-phrase {
  background: var(--wash-on-dark);
  border-inline-start-color: var(--citrus);
}

.zee-msg[data-from='you'] .zee-line--translit {
  color: var(--sand-light);
}

.zee-msg[data-from='you'] .zee-line--ar {
  color: var(--sand-light);
}

.zee-msg[data-from='you'] .zee-line--gloss {
  color: var(--on-dark-muted);
}

.zee-msg[data-from='zee'] .zee-bubble strong {
  color: var(--sea-deep);
}

/* System notes: rate limits, network trouble, "conversation cleared". */
.zee-note {
  align-self: center;
  max-width: 92%;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
  background: var(--olive-wash);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.zee-note[data-tone='bad'] {
  background: var(--bad-bg);
  color: var(--bad);
}

/* ---- Navigation action ---- */
.zee-action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  align-self: flex-start;
  margin-block-start: var(--space-2);
  min-height: var(--tap);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--citrus);
  color: var(--sea-deep);
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: var(--shadow-press-sm);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.zee-action::after {
  content: '→';
  font-weight: 700;
}

[dir='rtl'] .zee-action::after {
  content: '←';
}

@media (hover: hover) {
  .zee-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--citrus-shadow);
  }
}

.zee-action:active {
  transform: translateY(2px);
  box-shadow: none;
}

/* ---- Thinking ---- */
.zee-thinking {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  align-self: flex-start;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.zee-dots {
  display: inline-flex;
  gap: 4px;
}

.zee-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--olive);
  animation: zee-bounce 1.1s var(--ease) infinite;
}

.zee-dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.zee-dots span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes zee-bounce {
  0%,
  60%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

/* The caret that follows the text as it streams in. */
.zee-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-inline-start: 2px;
  vertical-align: -2px;
  background: var(--olive);
  animation: zee-blink 1s steps(2, start) infinite;
}

@keyframes zee-blink {
  50% {
    opacity: 0;
  }
}

/* ---- Starter chips ---- */
.zee-starters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-block-start: var(--space-2);
}

.zee-starter {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-pill);
  background: var(--card);
  color: var(--sea-deep);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

@media (hover: hover) {
  .zee-starter:hover {
    border-color: var(--citrus);
    background: var(--sand);
  }
}

/* ---- Composer ---- */
.zee-form {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4) var(--space-4);
  background: var(--sand-light);
  border-block-start: 1px solid var(--hairline);
}

.zee-input-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  padding: 6px 6px 6px var(--space-4);
  background: var(--card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-xl);
  transition: border-color var(--t-fast) var(--ease);
}

.zee-input-wrap:focus-within {
  border-color: var(--olive);
}

.zee-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: none;
  resize: none;
  /* 16px minimum, or iOS zooms the whole page when the field takes focus. */
  font-size: 16px;
  line-height: 1.45;
  max-height: 120px;
  /* JS sizes this to fit its content; without hiding the overflow the browser
     paints a scrollbar inside the pill for a single line of text. */
  overflow-y: auto;
  padding-block: 9px;
  font-family: var(--font-body);
  color: var(--ink);
}

.zee-input:focus {
  outline: none;
}

.zee-send {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--citrus);
  color: var(--sea-deep);
  cursor: pointer;
  transition: opacity var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.zee-send svg {
  width: 18px;
  height: 18px;
}

[dir='rtl'] .zee-send svg {
  transform: scaleX(-1);
}

.zee-send[disabled] {
  opacity: 0.4;
  cursor: default;
}

.zee-send[data-mode='stop'] {
  background: var(--sea-deep);
  color: var(--sand-light);
}

.zee-count {
  padding-inline: var(--space-4);
  padding-block-end: var(--space-2);
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-align: end;
}

.zee-count[data-state='over'] {
  color: var(--bad);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Reduced motion — tokens.css already flattens durations globally; the
   decorative loops have to be switched off by name.
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .zee-launcher,
  .zee-panel,
  .zee-msg {
    animation: none;
  }

  .zee-launcher .zee-mark::after,
  .zee-cursor {
    display: none;
  }

  .zee-dots span {
    animation: none;
    opacity: 0.6;
  }

  .zee-log {
    scroll-behavior: auto;
  }
}