:root {
  color-scheme: light;
  --ink: #151a17;
  --ink-soft: #43504a;
  --muted: #6d7973;
  --line: #d5ddd6;
  --line-strong: #aebbb3;
  --paper: #f5f7f2;
  --panel: #ffffff;
  --panel-alt: #edf4ef;
  --mint: #66c9b4;
  --amber: #e7b75d;
  --coral: #db6d5a;
  --blue: #5b8def;
  --shadow: 0 22px 60px rgba(21, 26, 23, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(21, 26, 23, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(21, 26, 23, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 36px 36px, 36px 36px, auto;
  color: var(--ink);
}

button,
input {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  font-weight: 740;
  transition:
    transform 150ms ease,
    border-color 150ms ease,
    background 150ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: var(--ink);
  background: #f9fbf7;
}

button:active {
  transform: translateY(0);
}

.app-shell {
  width: min(1400px, calc(100vw - 32px));
  height: 100dvh;
  margin: 0 auto;
  padding: 24px 0;
  display: grid;
  grid-template-columns: minmax(380px, 0.95fr) minmax(420px, 1.05fr);
  gap: 22px;
  align-items: stretch;
  overflow: hidden;
}

.robot-zone,
.talk-zone {
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.robot-zone {
  padding: 22px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
}

.talk-zone {
  padding: 20px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: 14px;
  overflow: hidden;
}

.brand-row,
.chat-header,
.memory-bar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1;
}

h1 {
  font-size: 4.6rem;
}

h2 {
  font-size: 1.9rem;
}

.status-pill,
.counter {
  flex: 0 0 auto;
  min-width: 78px;
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
}

.status-pill.is-online {
  border-color: rgba(102, 201, 180, 0.9);
  background: rgba(102, 201, 180, 0.18);
}

.robot-wrap {
  position: relative;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(237, 244, 239, 0.86)),
    repeating-linear-gradient(0deg, rgba(21, 26, 23, 0.04) 0 1px, transparent 1px 18px);
}

#faceCanvas {
  width: min(100%, 72vh);
  max-width: 760px;
  aspect-ratio: 1;
  display: block;
  touch-action: none;
}

.mood-strip {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  min-height: 40px;
  padding: 8px 11px;
  border: 1px solid rgba(21, 26, 23, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink-soft);
  font-weight: 790;
}

.controls-grid {
  display: grid;
  grid-template-columns: minmax(160px, 0.9fr) minmax(220px, 1.1fr);
  gap: 12px;
}

.movement-pad {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(3, 42px);
  gap: 8px;
}

.movement-pad button {
  min-width: 0;
  padding: 0;
}

.movement-pad .up {
  grid-column: 2;
}

.movement-pad .left {
  grid-column: 1;
  grid-row: 2;
}

.movement-pad .center {
  grid-column: 2;
  grid-row: 2;
}

.movement-pad .right {
  grid-column: 3;
  grid-row: 2;
}

.movement-pad .down {
  grid-column: 2;
  grid-row: 3;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.signal-row button {
  min-width: 0;
  padding: 0 8px;
}

.signal-row [data-action="reward"] {
  border-color: rgba(102, 201, 180, 0.95);
  background: rgba(102, 201, 180, 0.16);
}

.signal-row [data-action="punish"] {
  border-color: rgba(219, 109, 90, 0.9);
  background: rgba(219, 109, 90, 0.13);
}

.messages {
  min-height: 0;
  max-height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(245, 247, 242, 0.78);
}

.message {
  width: min(82%, 660px);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  line-height: 1.42;
  background: #fff;
  overflow-wrap: anywhere;
}

.message.user {
  align-self: flex-end;
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.message.ai {
  align-self: flex-start;
  background: var(--panel-alt);
}

.message.system {
  align-self: center;
  width: auto;
  max-width: 90%;
  background: #fff4dd;
  color: #5a4108;
  font-size: 0.9rem;
}

.composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 104px;
  gap: 10px;
}

.composer input {
  min-width: 0;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  outline: none;
}

.composer input:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(102, 201, 180, 0.2);
}

.composer button {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.memory-bar {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  align-items: stretch;
}

.memory-bar > div {
  min-width: 0;
  flex: 1;
}

.chips {
  min-height: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chip {
  max-width: 100%;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-soft);
  font-size: 0.81rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 960px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: auto;
  }

  .app-shell {
    width: min(100vw - 20px, 760px);
    height: auto;
    min-height: 100dvh;
    grid-template-columns: 1fr;
    padding: 10px 0;
    overflow: visible;
  }

  .robot-zone,
  .talk-zone {
    padding: 16px;
  }

  .robot-zone {
    min-height: 620px;
    grid-template-rows: auto minmax(360px, 1fr) auto;
  }

  .talk-zone {
    height: min(780px, 92dvh);
  }

  .controls-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .app-shell {
    width: 100%;
    padding: 0;
  }

  .robot-zone,
  .talk-zone {
    border-left: 0;
    border-right: 0;
    border-radius: 0;
    box-shadow: none;
  }

  h1 {
    font-size: 2.8rem;
  }

  .brand-row,
  .chat-header,
  .memory-bar {
    flex-direction: column;
  }

  .composer {
    grid-template-columns: 1fr;
  }

  .signal-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .message {
    width: 94%;
  }
}