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

:root {
  --purple:       #534AB7;
  --purple-light: #EEEDFE;
  --purple-mid:   #AFA9EC;
  --purple-dark:  #3C3489;
  --green-bg:     #EAF3DE;
  --green-text:   #3B6D11;
  --green-border: #97C459;
  --blue-bg:      #E6F1FB;
  --blue-text:    #185FA5;
  --red-bg:       #FCEBEB;
  --red-text:     #A32D2D;
  --bg-primary:   #ffffff;
  --bg-secondary: #f7f7f5;
  --bg-tertiary:  #f0eeea;
  --text-primary: #1a1a1a;
  --text-secondary: #6b6b6b;
  --text-tertiary:  #a0a0a0;
  --border-light: rgba(0,0,0,0.12);
  --border-mid:   rgba(0,0,0,0.22);
  --radius-md:    8px;
  --radius-lg:    12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  font-family: var(--font);
  background: var(--bg-tertiary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 16px;
}

.app {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 820px;
  height: 90vh;
  max-height: 740px;
  border: 0.5px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-primary);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  position: relative;
}

/* ── Header ── */
.header {
  padding: 12px 18px;
  border-bottom: 0.5px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.agent-icon {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--purple);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.agent-icon svg { width: 16px; height: 16px; fill: white; }

.header h2 { font-size: 15px; font-weight: 500; color: var(--text-primary); }
.header p  { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.auth-area { margin-left: auto; flex-shrink: 0; }

.auth-btn {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; padding: 6px 12px;
  border-radius: 999px;
  border: 0.5px solid var(--border-mid);
  background: var(--bg-primary);
  cursor: pointer; color: var(--text-secondary);
  font-family: var(--font);
  transition: all 0.15s;
}
.auth-btn:hover { border-color: var(--purple); color: var(--purple); }
.auth-btn.connected { background: var(--green-bg); color: var(--green-text); border-color: var(--green-border); }

.modes { display: flex; gap: 6px; flex-wrap: wrap; }

.mode-btn {
  font-size: 11px; padding: 4px 12px;
  border-radius: 999px;
  border: 0.5px solid var(--border-mid);
  background: transparent; cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s; font-family: var(--font);
}
.mode-btn:hover  { border-color: var(--purple); color: var(--purple); }
.mode-btn.active { background: var(--purple); border-color: var(--purple); color: white; }

/* ── Pipeline ── */
.pipeline {
  padding: 8px 18px;
  border-bottom: 0.5px solid var(--border-light);
  background: var(--bg-secondary);
  display: flex; align-items: center; gap: 6px;
  overflow-x: auto; flex-shrink: 0;
}
.step { display: flex; align-items: center; flex-shrink: 0; }
.step-badge {
  font-size: 10px; padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-tertiary); color: var(--text-secondary);
  border: 0.5px solid var(--border-light);
  transition: all 0.3s;
}
.step-badge.done   { background: var(--green-bg); color: var(--green-text); border-color: var(--green-border); }
.step-badge.active { background: var(--purple-light); color: var(--purple); border-color: var(--purple-mid); font-weight: 500; }
.step-arrow { color: var(--text-tertiary); font-size: 12px; }

/* ── Messages ── */
.messages {
  flex: 1; overflow-y: auto;
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.msg { display: flex; gap: 10px; align-items: flex-start; }
.msg.user { flex-direction: row-reverse; }

.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 500; flex-shrink: 0;
}
.avatar.ai   { background: var(--purple-light); color: var(--purple); }
.avatar.user { background: var(--bg-tertiary); color: var(--text-secondary); }

.bubble {
  max-width: 82%; padding: 10px 14px;
  border-radius: var(--radius-lg); font-size: 13.5px; line-height: 1.6;
}
.bubble.ai {
  background: var(--bg-secondary); color: var(--text-primary);
  border: 0.5px solid var(--border-light); border-top-left-radius: 4px;
}
.bubble.user { background: var(--purple); color: white; border-top-right-radius: 4px; }
.bubble .thinking { font-size: 11px; color: var(--text-tertiary); margin-bottom: 6px; font-style: italic; }

.step-tag {
  display: inline-block; font-size: 10px;
  padding: 2px 8px; border-radius: 999px; margin-bottom: 4px;
}
.tag-analyze  { background: var(--blue-bg);      color: var(--blue-text); }
.tag-generate { background: var(--green-bg);     color: var(--green-text); }
.tag-refine   { background: var(--purple-light); color: var(--purple); }
.tag-done     { background: var(--green-bg);     color: var(--green-text); }
.tag-error    { background: var(--red-bg);       color: var(--red-text); }

/* ── Action Buttons (below AI message) ── */
.action-bar {
  display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap;
}
.action-btn {
  display: flex; align-items: center; gap: 5px;
  font-size: 11px; padding: 5px 11px;
  border-radius: 999px;
  border: 0.5px solid var(--border-mid);
  background: var(--bg-primary); cursor: pointer;
  color: var(--text-secondary); font-family: var(--font);
  transition: all 0.15s;
}
.action-btn:hover { border-color: var(--purple); color: var(--purple); }
.action-btn.email-btn { border-color: var(--purple); color: var(--purple); }
.action-btn.download-btn { border-color: var(--green-border); color: var(--green-text); }

/* ── Status Message ── */
.status-msg {
  font-size: 12px; padding: 6px 10px;
  border-radius: var(--radius-md); margin-top: 8px;
}
.status-success { background: var(--green-bg); color: var(--green-text); }
.status-error   { background: var(--red-bg);   color: var(--red-text); }

/* ── Typing ── */
.typing { display: flex; gap: 4px; align-items: center; padding: 4px 0; }
.dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--purple); animation: bounce 0.9s infinite;
}
.dot:nth-child(2) { animation-delay: 0.15s; }
.dot:nth-child(3) { animation-delay: 0.30s; }
@keyframes bounce { 0%,80%,100%{transform:translateY(0)} 40%{transform:translateY(-5px)} }

/* ── Modal ── */
.modal-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--border-light);
  width: 90%; max-width: 480px;
  max-height: 85%;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 0.5px solid var(--border-light);
}
.modal-header h3 { font-size: 15px; font-weight: 500; }
.modal-close {
  background: none; border: none; cursor: pointer;
  font-size: 14px; color: var(--text-secondary);
  padding: 4px;
}
.modal-body { padding: 16px 18px; display: flex; flex-direction: column; gap: 12px; }
.email-field { display: flex; flex-direction: column; gap: 4px; }
.email-field label { font-size: 11px; font-weight: 500; color: var(--text-secondary); }
.email-field input, .email-field textarea {
  border: 0.5px solid var(--border-mid);
  border-radius: var(--radius-md);
  padding: 8px 11px; font-size: 13px;
  font-family: var(--font);
  background: var(--bg-primary); color: var(--text-primary);
  outline: none; transition: border-color 0.15s;
}
.email-field input:focus, .email-field textarea:focus { border-color: var(--purple); }
.email-field textarea { resize: vertical; line-height: 1.5; }

.schedule-toggle { display: flex; align-items: center; }
.toggle-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; cursor: pointer; color: var(--text-secondary);
}
.schedule-section { margin-top: -4px; }

.modal-footer {
  padding: 12px 18px;
  border-top: 0.5px solid var(--border-light);
  display: flex; justify-content: flex-end; gap: 8px;
}
.btn-primary {
  display: flex; align-items: center; gap: 6px;
  background: var(--purple); color: white;
  border: none; border-radius: var(--radius-md);
  padding: 8px 16px; font-size: 13px;
  cursor: pointer; font-family: var(--font);
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--purple-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: transparent; color: var(--text-secondary);
  border: 0.5px solid var(--border-mid);
  border-radius: var(--radius-md);
  padding: 8px 14px; font-size: 13px;
  cursor: pointer; font-family: var(--font);
}
.btn-secondary:hover { border-color: var(--purple); color: var(--purple); }

/* ── Scheduled Panel ── */
.scheduled-panel {
  position: absolute; bottom: 80px; right: 16px;
  width: 300px; background: var(--bg-primary);
  border: 0.5px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  z-index: 50; overflow: hidden;
}
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 0.5px solid var(--border-light);
  font-size: 13px; font-weight: 500;
  background: var(--bg-secondary);
}
.panel-header button { background: none; border: none; cursor: pointer; font-size: 13px; color: var(--text-secondary); }
.scheduled-item {
  padding: 10px 14px;
  border-bottom: 0.5px solid var(--border-light);
  font-size: 12px;
}
.scheduled-item .s-to     { font-weight: 500; color: var(--text-primary); }
.scheduled-item .s-time   { color: var(--text-secondary); margin-top: 2px; }
.scheduled-item .s-status { font-size: 10px; margin-top: 4px; }
.s-status.scheduled { color: var(--purple); }
.s-status.sent      { color: var(--green-text); }
.s-status.failed    { color: var(--red-text); }
.cancel-btn {
  font-size: 10px; padding: 2px 8px; margin-top: 4px;
  border-radius: 999px; border: 0.5px solid var(--border-mid);
  background: none; cursor: pointer; color: var(--text-secondary);
}
.cancel-btn:hover { border-color: var(--red-text); color: var(--red-text); }

/* ── Input Area ── */
.input-area {
  padding: 10px 18px 12px;
  border-top: 0.5px solid var(--border-light);
  background: var(--bg-secondary); flex-shrink: 0;
}
.quick-btns { display: flex; gap: 6px; margin-bottom: 8px; flex-wrap: wrap; }
.quick-btn {
  font-size: 11px; padding: 4px 11px; border-radius: 999px;
  border: 0.5px solid var(--border-mid);
  background: var(--bg-primary); cursor: pointer;
  color: var(--text-secondary); font-family: var(--font);
  transition: all 0.15s;
}
.quick-btn:hover { border-color: var(--purple); color: var(--purple); }
.input-row { display: flex; gap: 8px; align-items: flex-end; }
textarea {
  flex: 1; resize: none;
  border: 0.5px solid var(--border-mid); border-radius: var(--radius-md);
  padding: 9px 12px; font-size: 13.5px; font-family: var(--font);
  background: var(--bg-primary); color: var(--text-primary);
  line-height: 1.5; min-height: 40px; max-height: 100px;
  outline: none; transition: border-color 0.15s;
}
textarea:focus { border-color: var(--purple); }

.send-btn {
  width: 38px; height: 38px; border-radius: var(--radius-md);
  background: var(--purple); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: background 0.15s;
}
.send-btn:hover    { background: var(--purple-dark); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.send-btn svg { width: 15px; height: 15px; }

.bottom-bar { display: flex; margin-top: 6px; }
.tool-btn {
  font-size: 11px; padding: 3px 10px; border-radius: 999px;
  border: 0.5px solid var(--border-mid); background: none;
  cursor: pointer; color: var(--text-secondary); font-family: var(--font);
}
.tool-btn:hover { border-color: var(--purple); color: var(--purple); }

.messages::-webkit-scrollbar { width: 4px; }
.messages::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

@media (max-width: 520px) {
  body { padding: 0; }
  .app { height: 100vh; max-height: 100vh; border-radius: 0; border: none; }
  .bubble { max-width: 90%; }
  .scheduled-panel { width: calc(100% - 32px); }
}