@font-face {
    font-family: 'Suit';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_suit@1.0/SUIT-Medium.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'Presentation';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2404@1.0/Freesentation-6SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-display: swap;
}

:root {
  --app-height: 100vh;
}

@supports (height: 100dvh) {
  :root { --app-height: 100dvh; }
}

body {
  --page-gap: clamp(8px, 2vh, 20px);
  --brand-space: 0px;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  width: 100%;
  height: var(--app-height);
  min-height: var(--app-height);
  padding: calc(var(--page-gap) + var(--brand-space)) var(--page-gap) var(--page-gap);
  overflow-x: hidden;
  background: #faf9fc;
  color: #262626;
}

main {
  border: solid 1px #9b9ba1;
  box-sizing: border-box;
  width: min(380px, 100%);
  height: calc(var(--app-height) - var(--page-gap) * 2 - var(--brand-space));
  min-height: 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: 40px;
  background: white;
  position: relative;
  z-index: 1;
  box-shadow: 0 18px 42px rgba(32, 20, 48, 0.18);
}

.whale-brand {
  position: fixed;
  top: 32px;
  right: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #5d5368;
  font-family: 'Suit';
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  z-index: 2;
}

.whale-brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 6px 10px rgba(91, 22, 208, 0.2));
}

.dm-header {
  display: flex;
  align-items: center;
  width: 100%;
  height: 64px;
  flex-shrink: 0;
  padding: 0 16px;
  box-sizing: border-box;
  border-bottom: 1px solid #e6e6e6;
  border-radius: 40px 40px 0 0;
  background: white;
}

.header-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  color: #262626;
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
}

.back-icon {
  margin-right: 8px;
  font-size: 38px;
  font-weight: 300;
}

.dm-avatar {
  display: flex;
  position: relative;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f1f1f1;
  flex-shrink: 0;
}

.dm-avatar::after {
  content: "";
  position: absolute;
  left: -1px;
  bottom: -1px;
  width: 10px;
  height: 10px;
  border: 2px solid white;
  border-radius: 50%;
  background: #31c65b;
}

.person-icon {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: #555;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.dm-profile {
  display: flex;
  flex-direction: column;
  margin-left: 8px;
  color: #262626;
  font-family: 'Suit';
  line-height: 1.2;
  min-width: 0;
  white-space: nowrap;
}

.dm-profile strong { font-size: 18px; font-weight: 500; }

.dm-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  margin-right: 12px;
  flex-shrink: 0;
}

.dm-action-icon {
  display: block;
  width: 28px;
  height: 28px;
  fill: none;
  stroke: #262626;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.theme-toggle {
  width: 38px;
  height: 22px;
  padding: 2px;
  border: 0;
  border-radius: 999px;
  background: #d6d6dc;
  flex-shrink: 0;
  cursor: pointer;
}

.theme-toggle span {
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  transition: transform 180ms ease;
}

.chat-history {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
  min-height: 0;
  padding: 16px;
  box-sizing: border-box;
  overflow-y: scroll;
  overscroll-behavior-y: contain;
  scroll-behavior: smooth;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.chat-history::before {
  content: "";
  flex: 1 0 0;
}

.chat-history::-webkit-scrollbar { display: none; }

.message {
  box-sizing: border-box;
  flex-shrink: 0;
  max-width: 76%;
  margin: 0;
  padding: 9px 12px;
  border-radius: 18px;
  font-family: 'Suit';
  font-size: 13px;
  line-height: 1.35;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.message.sent {
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  color: white;
  background-image: linear-gradient(180deg, #5b16d0 0%, #8525e4 34%, #e600a9 66%, #ff38b8 100%);
  background-attachment: fixed;
  background-color: #ff38b8;
  background-size: 100vw 520px;
  background-repeat: no-repeat;
}

.message.received {
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  color: #262626;
  background: #efefef;
}

.keyboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: lightgray;
  width: 100%;
  flex-shrink: 0;
  padding: 0 6px 8px;
  box-sizing: border-box;
  margin-top: 0;
  border-radius: 0 0 40px 40px;
}

.typing-zone {
  display: flex;
  box-sizing: border-box;
  width: 100%;
  max-width: 440px;
  gap: 5px;
  margin-bottom: 5px;
}

.typing-zone:nth-of-type(3) {
  width: 90%;
  max-width: 396px;
}

.key {
  background-color: white;
  flex: 1 1 0;
  min-width: 0;
  height: 43px;
  text-align: center;
  line-height: 43px;
  border-radius: 5px;
  font-family: 'Suit', sans-serif;
}

button.key {
  padding: 0;
  border: 0;
  color: inherit;
  cursor: pointer;
}

.Enter { flex-grow: 1.45; }

.Shift {
  flex-grow: 1.05;
  font-size: 13px;
}

.language-key {
  flex-grow: 1.18;
  padding: 0;
  border: 0;
  color: inherit;
  font-size: 12px;
  cursor: pointer;
}

.Space { flex-grow: 4.8; }
.Backspace { flex-grow: 1.25; }

.keyboard-controls {
  margin-top: 1px;
  margin-bottom: 3px;
}

.keyboard-letter-row {
  width: 68%;
  max-width: 252px;
}

.keyboard-controls .key {
  height: 32px;
  line-height: 32px;
}

.homebar {
  width: 35%;
  height: 4px;
  border-radius: 2px;
  background-color: gray;
  margin-top: 15px;
  flex-shrink: 0;
}

.key.is-pressed { background-color: #a9adb1; }
.key.is-shifted { background-color: #ded0f5; }

.typing-field {
  --send-space: 56px;
  --typing-font-size: clamp(22px, 3.5vw, 36px);
  --typing-padding-x: 20px;
  --typing-padding-y: 14px;
  position: relative;
  width: var(--sentence-width, 480px);
  max-width: calc(100vw - 32px);
  min-width: 0;
  flex-shrink: 0;
  margin-top: 0;
  margin-bottom: 20px;
  border-radius: 6px;
  background-color: #e5e5e5;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.typing-field.is-typing-bounce {
  animation: typing-bounce 240ms ease-out;
}

@keyframes typing-bounce {
  0%, 100% { transform: translateY(0); }
  35% { transform: translateY(-3px); }
  70% { transform: translateY(1px); }
}

.typing-effects {
  position: fixed;
  inset: 0;
  z-index: 10;
  overflow: hidden;
  pointer-events: none;
}

.typing-particle {
  position: absolute;
  display: block;
  clip-path: polygon(12% 0, 100% 28%, 72% 100%, 0 72%);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .typing-field.is-typing-bounce { animation: none; }
  .typing-effects { display: none; }
}

#sentence,
#typing-input {
  box-sizing: border-box;
  width: calc(100% - var(--send-space));
  height: calc(var(--typing-font-size) * 1.4 + var(--typing-padding-y) * 2);
  min-height: 0;
  margin: 0;
  padding: var(--typing-padding-y) var(--typing-padding-x);
  border: 0;
  font: inherit;
  font-size: var(--typing-font-size);
  line-height: 1.4;
  letter-spacing: normal;
  word-spacing: normal;
  white-space: pre;
  overflow: hidden;
}

#sentence {
  position: relative;
  z-index: 1;
  display: block;
  pointer-events: none;
}

#typing-input {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  background: transparent;
  color: transparent;
  caret-color: #222;
  -webkit-text-fill-color: transparent;
  resize: none;
  overflow: hidden;
}

#typing-input:focus { outline: none; }

.send-button {
  position: absolute;
  right: 8px;
  top: 50%;
  z-index: 3;
  border: 0;
  border-radius: 999px;
  padding: 10px 8px;
  font-size: 24px;
  line-height: 1;
  font-weight: 700;
  pointer-events: auto;
  cursor: pointer;
  color: transparent;
  background: linear-gradient(135deg, #7b2cbf, #b5179e, #f72585);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: translateY(-50%);
}

.send-button.is-bouncing { animation: send-monochrome 280ms ease-out; }

@keyframes send-monochrome {
  0%, 100% { filter: grayscale(0); }
  50% { filter: grayscale(1); }
}

.pending { color: gray; }
.correct { color: purple; }
.incorrect { color: red; }

.keyboard .stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  place-items: center;
  width: 100%;
  min-height: 42px;
  margin: 0 0 6px;
  padding: 4px 0;
  box-sizing: border-box;
  background-color: transparent;
}

.keyboard .stats p {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 100%;
  position: relative;
  margin: 0;
  color: #555;
  font-family: 'Suit';
  font-size: 10px;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

.keyboard .stats p:not(:last-child)::after {
  content: "|";
  position: absolute;
  right: 0;
  top: 50%;
  color: #888;
  transform: translateY(-50%);
}

.keyboard .stats strong {
  color: #555;
  font-size: 14px;
}

body.dark-mode {
  background: #101014;
  color: #f4f4f5;
}

body.dark-mode main { border-color: #3d3b45; background: #19181d; }
body.dark-mode .dm-header { border-bottom-color: #34323a; background: #19181d; }
body.dark-mode .header-icon,
body.dark-mode .dm-profile,
body.dark-mode .dm-action-icon { color: #f4f4f5; stroke: #f4f4f5; }
body.dark-mode .dm-avatar { background: #34333a; }
body.dark-mode .whale-brand { color: #d9d2e1; }
body.dark-mode .person-icon { stroke: #d7d5df; }
body.dark-mode .theme-toggle { background: #8f28c5; }
body.dark-mode .theme-toggle span { transform: translateX(16px); }
body.dark-mode .typing-field { background: #2b2931; box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4); }
body.dark-mode .dm-avatar::after { border-color: #19181d; }
body.dark-mode #typing-input { caret-color: #f4f4f5; }
body.dark-mode .pending { color: #aaa7b0; }
body.dark-mode .correct { color: #d58aff; }
body.dark-mode .incorrect { color: #ff7a89; }
body.dark-mode .message.received { color: #f4f4f5; background: #302e36; }
body.dark-mode .keyboard { background-color: #2a2930; }
body.dark-mode .key { color: #f4f4f5; background-color: #414049; }
body.dark-mode .key.is-pressed { background-color: #686570; }
body.dark-mode .key.is-shifted { background-color: #684888; }
body.dark-mode .homebar { background-color: #9a98a3; }
body.dark-mode .keyboard .stats p,
body.dark-mode .keyboard .stats strong { color: #d0cdd6; }
body.dark-mode .keyboard .stats p:not(:last-child)::after { color: #92909a; }

@media (max-width: 1100px) {
  body { --brand-space: 40px; }

  .whale-brand {
    top: 6px;
    right: max(12px, env(safe-area-inset-right));
    height: 36px;
    gap: 6px;
    font-size: 12px;
  }

  .whale-brand img { width: 34px; height: 34px; }
}

@media (max-width: 600px) {
  body { --page-gap: 8px; }

  .dm-header { padding: 0 12px; }
  .back-icon { margin-right: 4px; }
  .dm-actions { gap: 7px; margin-right: 0; }

  .typing-field {
    --typing-padding-x: 12px;
    --typing-padding-y: 12px;
    max-width: calc(100% - 16px);
    margin-bottom: 16px;
  }

  .keyboard .stats p { gap: 3px; }
}

@media (max-width: 380px) {
  .header-icon { width: 32px; }
  .dm-avatar { width: 32px; height: 32px; }
  .dm-action-icon { width: 26px; height: 26px; }
  .keyboard .stats p { font-size: 9px; gap: 2px; }
  .keyboard .stats strong { font-size: 12px; }
  .key { font-size: 14px; }
  .key.Shift, .key.Enter { font-size: 12px; }
}

@media (max-height: 650px) {
  .dm-header { height: 56px; }
  .typing-field { --typing-padding-y: 10px; margin-bottom: 12px; }
  .keyboard { padding-bottom: 6px; }
  .keyboard .stats { min-height: 34px; margin-bottom: 4px; }
  .typing-zone { gap: 4px; margin-bottom: 4px; }
  .key { height: 32px; line-height: 32px; }
  .keyboard-controls .key { height: 28px; line-height: 28px; }
  .homebar { margin-top: 8px; }
}

@media (max-height: 450px) {
  body { --page-gap: 6px; }
  .dm-header { height: 44px; padding: 0 12px; }
  .dm-avatar { width: 30px; height: 30px; }
  .dm-action-icon { width: 24px; height: 24px; }
  .dm-profile strong { font-size: 16px; }
  .typing-field {
    --typing-font-size: 22px;
    --typing-padding-y: 8px;
    margin-bottom: 8px;
  }
  .keyboard { padding-bottom: 4px; }
  .keyboard .stats { min-height: 32px; padding: 2px 0; }
  .typing-zone { margin-bottom: 3px; }
  .key { height: 24px; line-height: 24px; font-size: 13px; }
  .keyboard-controls .key { height: 22px; line-height: 22px; }
  .homebar { margin-top: 5px; height: 3px; }
}

body.software-keyboard-open .typing-zone,
body.software-keyboard-open .homebar { display: none; }

body.software-keyboard-open .typing-field { margin-bottom: 8px; }
body.software-keyboard-open .keyboard { padding-bottom: 4px; }
body.software-keyboard-open .keyboard .stats { margin-bottom: 0; }