/* ─────────────────────────────────────────
   SHAPE — evolving AI companion
   style.css
───────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d0d0f;
  --bg2:       #141416;
  --bg3:       #1c1c20;
  --border:    rgba(255,255,255,0.08);
  --border2:   rgba(255,255,255,0.14);
  --text:      #f0ede8;
  --text2:     #8a877f;
  --text3:     #4a4845;
  --accent:    #c8f060;
  --accent2:   #7f77dd;
  --accent3:   #1d9e75;
  --radius:    12px;
  --font-head: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 16px 40px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 24px;
  border-bottom: 0.5px solid var(--border);
  margin-bottom: 28px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  color: var(--accent);
  font-size: 18px;
}

.logo-text {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}

#resetBtn {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text3);
  background: none;
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

#resetBtn:hover {
  color: var(--text2);
  border-color: var(--border2);
}

/* ── Main layout ── */
main {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

/* ── Profile panel ── */
.profile-panel {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
  row-gap: 12px;
  align-items: start;
}

.avatar-ring {
  grid-row: 1 / 3;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: border-color 0.6s;
}

.avatar-ring::before {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 0.5px solid var(--border);
}

.avatar {
  font-size: 26px;
  transition: transform 0.4s ease;
}

.profile-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.profile-info h1 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  transition: all 0.4s;
}

.profile-info p {
  font-size: 12px;
  color: var(--text2);
  font-family: var(--font-mono);
  transition: all 0.4s;
}

.meta-tags {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border: 0.5px solid var(--border2);
  border-radius: 999px;
  color: var(--text2);
  text-transform: lowercase;
  transition: all 0.4s;
}

/* ── Traits panel ── */
.traits-panel {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.traits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.trait-card {
  background: var(--bg3);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  transition: border-color 0.3s;
}

.trait-card:hover {
  border-color: var(--border2);
}

.trait-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text3);
  margin-bottom: 5px;
}

.trait-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}

.trait-value {
  font-size: 20px;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.trait-delta {
  font-size: 11px;
  font-family: var(--font-mono);
  opacity: 0;
  transition: opacity 0.3s;
}

.trait-delta.show { opacity: 1; }
.trait-delta.up   { color: var(--accent); }
.trait-delta.down { color: #e24b4a; }

.trait-bar {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  overflow: hidden;
}

.trait-fill {
  height: 100%;
  border-radius: 1px;
  transition: width 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Chat panel ── */
.chat-panel {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.messages {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 240px;
  max-height: 380px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.messages::-webkit-scrollbar { width: 3px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  animation: msgIn 0.25s ease;
}

.msg.user { flex-direction: row-reverse; }

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg3);
  border: 0.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}

.msg-bubble {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
  font-family: var(--font-mono);
}

.msg.ai .msg-bubble {
  background: var(--bg3);
  border: 0.5px solid var(--border);
  border-top-left-radius: 4px;
  color: var(--text);
}

.msg.user .msg-bubble {
  background: rgba(200, 240, 96, 0.08);
  border: 0.5px solid rgba(200, 240, 96, 0.2);
  border-top-right-radius: 4px;
  color: var(--text);
}

/* Thinking dots */
.thinking {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 2px 0;
}

.dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text3);
  animation: bounce 1.3s infinite;
}

.dot:nth-child(2) { animation-delay: 0.18s; }
.dot:nth-child(3) { animation-delay: 0.36s; }

@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-5px); }
}

/* ── Evolution log ── */
.evo-log {
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s ease, padding 0.3s;
}

.evo-log.visible {
  max-height: 80px;
  padding: 10px 16px;
  border-top: 0.5px solid var(--border);
}

.evo-item {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 11px;
  color: var(--text3);
  font-family: var(--font-mono);
}

.evo-marker {
  color: var(--accent);
  font-size: 10px;
  flex-shrink: 0;
}

/* ── Input row ── */
.input-row {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-top: 0.5px solid var(--border);
  background: var(--bg2);
}

#userInput {
  flex: 1;
  background: var(--bg3);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 14px;
  outline: none;
  transition: border-color 0.2s;
}

#userInput::placeholder { color: var(--text3); }

#userInput:focus { border-color: var(--border2); }

#sendBtn {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent);
  color: #0d0d0f;
  border: none;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s, transform 0.15s;
  flex-shrink: 0;
}

#sendBtn:hover  { opacity: 0.88; }
#sendBtn:active { transform: scale(0.95); }
#sendBtn:disabled { opacity: 0.3; cursor: default; transform: none; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .traits-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .profile-panel { grid-template-columns: auto 1fr; }
  .meta-tags { grid-column: 1 / 3; }
}