:root {
  --bg: #212121;
  --panel: #2f2f2f;
  --panel-2: #3a3a3a;
  --border: #4a4a4a;
  --text: #ececec;
  --text-dim: #9b9b9b;
  --accent: #ffffff;
  --green: #10a37f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.2px;
}
.brand span { color: var(--text); }

.view {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  text-align: center;
}

.hidden { display: none !important; }

.hero h1 {
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 600;
  margin: 0 0 8px;
  max-width: 640px;
}

.hero .sub {
  color: var(--text-dim);
  margin: 0 0 32px;
  font-size: 15px;
}

.composer {
  width: 100%;
  max-width: 640px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 14px 14px 14px 22px;
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.composer textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  line-height: 1.4;
  max-height: 160px;
  padding: 6px 0;
}

.composer textarea::placeholder { color: var(--text-dim); }

#send-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}
#send-btn:disabled { opacity: 0.3; cursor: default; }
#send-btn:not(:disabled):hover { transform: scale(1.05); }

.result {
  margin-top: 28px;
  width: 100%;
  max-width: 640px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  text-align: left;
}

.result label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.share-row {
  display: flex;
  gap: 8px;
}

#share-url {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

#copy-btn {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
}
#copy-btn:hover { opacity: 0.85; }
#copy-btn.copied { background: var(--panel-2); }

#preview-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
}
#preview-link:hover { color: var(--text); text-decoration: underline; }

.fake-chat {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: visible;
}

.fake-chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
}

.fake-chat-header .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.fake-chat-body {
  padding: 40px 20px;
}

.fake-composer {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 14px 14px 14px 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}

.fake-input {
  flex: 1;
  font-size: 16px;
  min-height: 24px;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}

.caret {
  display: inline-block;
  width: 2px;
  height: 18px;
  background: var(--text);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: blink 0.9s steps(1) infinite;
}

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

.fake-send {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fake-cursor {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(120px, 60px);
  transition: transform 0.7s cubic-bezier(.4,0,.2,1);
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
  pointer-events: none;
}

.reveal-caption {
  margin-top: 20px;
  color: var(--text-dim);
  font-size: 14px;
}

.footer {
  padding: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
}
.footer a { color: var(--text-dim); }