/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bro-primary:   #6c5ce7;
  --bro-secondary: #a29bfe;
  --bro-bg:        linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  --bro-bubble:    rgba(108, 92, 231, 0.2);

  --gf-primary:    #fd79a8;
  --gf-secondary:  #e84393;
  --gf-bg:         linear-gradient(135deg, #2d1b2e, #44203a, #2d1b2e);
  --gf-bubble:     rgba(253, 121, 168, 0.2);

  --primary:    var(--bro-primary);
  --secondary:  var(--bro-secondary);
  --bg:         var(--bro-bg);
  --bot-bubble: var(--bro-bubble);

  --user-bubble: rgba(255,255,255,0.08);
  --text:        #f0f0f0;
  --text-dim:    #a0a0b0;
  --font:        'Inter', sans-serif;
  --radius:      18px;
}

html, body {
  height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  transition: background 0.5s ease;
}

/* ===== SETUP SCREEN ===== */
.setup-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 24px;
  animation: fadeIn 0.6s ease;
}

.setup-card {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 28px;
  padding: 40px 36px;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  text-align: center;
}

.setup-logo { font-size: 3rem; }

.setup-card h1 {
  font-size: 1.65rem;
  font-weight: 700;
  background: linear-gradient(135deg, #6c5ce7, #fd79a8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.setup-card > p {
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: 1.55;
  margin-top: -10px;
}

/* Form */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 9px;
  text-align: left;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

.hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 6px;
}

.form-group input[type="text"],
.form-group input[type="number"] {
  width: 100%;
  padding: 13px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.setup-select {
  width: 100%;
  padding: 13px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 18px center;
}

.setup-select option {
  background: #24243e;
  color: white;
}

.form-group input.error { border-color: #fd79a8; }

/* Slider */
.age-slider-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.age-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.12);
  outline: none;
  cursor: pointer;
}

.age-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6c5ce7, #fd79a8);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(108,92,231,0.4);
  transition: transform 0.2s;
}

.age-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }

.age-val {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fd79a8;
  min-width: 30px;
  text-align: center;
}

.age-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
  padding: 0 2px;
  margin-top: -4px;
}

/* Setup button */
.setup-btn {
  width: 100%;
  padding: 15px;
  border-radius: 16px;
  border: none;
  background: linear-gradient(135deg, #6c5ce7, #fd79a8);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.25s;
  margin-top: 4px;
}

.setup-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(108,92,231,0.38);
}

.setup-btn:active { transform: translateY(0); }

/* ===== SELECTION SCREEN ===== */
.selection-screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 24px;
  padding: 28px;
  animation: fadeIn 0.6s ease;
}

.selection-screen.active { display: flex; }

.selection-header { text-align: center; }

.selection-header h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #6c5ce7, #fd79a8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.selection-header p { color: var(--text-dim); font-size: 0.95rem; }

/* Persona cards */
.persona-cards {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.persona-card {
  width: 260px;
  padding: 34px 26px 28px;
  border-radius: 24px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.persona-card:hover { transform: translateY(-6px) scale(1.03); }

.persona-card.bro:hover {
  box-shadow: 0 12px 40px rgba(108,92,231,0.35);
  border-color: rgba(108,92,231,0.5);
}

.persona-card.gf:hover {
  box-shadow: 0 12px 40px rgba(253,121,168,0.35);
  border-color: rgba(253,121,168,0.5);
}

.persona-card .emoji { font-size: 3.6rem; display: block; margin-bottom: 12px; }
.persona-card .title { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.persona-card .desc  { font-size: 0.82rem; color: var(--text-dim); line-height: 1.5; margin-bottom: 16px; }

/* Stage chip on card */
.stage-chip {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-dim);
}

.persona-card.bro  .stage-chip { color: var(--bro-secondary); border-color: rgba(108,92,231,0.25); background: rgba(108,92,231,0.1); }
.persona-card.gf   .stage-chip { color: var(--gf-secondary);  border-color: rgba(253,121,168,0.25); background: rgba(253,121,168,0.1); }

/* Edit profile button */
.edit-profile-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-dim);
  padding: 10px 26px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.edit-profile-btn:hover { background: rgba(255,255,255,0.11); color: var(--text); }

/* ===== CHAT SCREEN ===== */
.chat-screen {
  display: none;
  flex-direction: column;
  height: 100%;
  animation: fadeIn 0.5s ease;
}

.chat-screen.active { display: flex; }

/* Header */
.chat-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.back-btn, .reset-rel-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  flex-shrink: 0;
}

.back-btn:hover, .reset-rel-btn:hover { background: rgba(255,255,255,0.13); }

.reset-rel-btn {
  margin-left: auto;
  opacity: 0.55;
  font-size: 0.9rem;
}

.reset-rel-btn:hover { opacity: 1; background: rgba(255,80,80,0.15); }

.header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.header-avatar.bro { background: rgba(108,92,231,0.25); }
.header-avatar.gf  { background: rgba(253,121,168,0.25); }

.header-info { flex: 1; min-width: 0; }

.header-info .name {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stage-badge {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--primary);
  margin-top: 1px;
}

/* Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.message {
  max-width: 78%;
  padding: 11px 16px;
  border-radius: var(--radius);
  font-size: 0.93rem;
  line-height: 1.55;
  word-wrap: break-word;
  animation: msgSlide 0.3s ease;
}

.message.user {
  align-self: flex-end;
  background: var(--user-bubble);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
  border-bottom-right-radius: 5px;
}

.message.bot {
  align-self: flex-start;
  background: var(--bot-bubble);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
  border-bottom-left-radius: 5px;
}

.message .time {
  display: block;
  font-size: 0.62rem;
  color: var(--text-dim);
  margin-top: 5px;
  text-align: right;
}

/* Typing indicator */
.typing-indicator {
  display: none;
  align-self: flex-start;
  padding: 11px 18px;
  border-radius: var(--radius);
  background: var(--bot-bubble);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
  border-bottom-left-radius: 5px;
  gap: 5px;
  align-items: center;
  animation: msgSlide 0.3s ease;
}

.typing-indicator.show { display: flex; }

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.6;
  animation: bounce 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

/* Input area */
.chat-input-area {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.chat-input-area input {
  flex: 1;
  padding: 13px 20px;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 0.93rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.chat-input-area input::placeholder { color: var(--text-dim); }

.chat-input-area input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.12);
}

.send-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
  flex-shrink: 0;
}

.send-btn:hover { transform: scale(1.08); box-shadow: 0 4px 20px rgba(108,92,231,0.4); }
.send-btn:active { transform: scale(0.95); }

/* ===== GF Theme Override ===== */
body.gf-theme {
  --primary: var(--gf-primary);
  --secondary: var(--gf-secondary);
  --bg: var(--gf-bg);
  --bot-bubble: var(--gf-bubble);
  background: var(--gf-bg);
}

body.gf-theme .chat-input-area input:focus { box-shadow: 0 0 0 3px rgba(253,121,168,0.15); }
body.gf-theme .send-btn:hover { box-shadow: 0 4px 20px rgba(253,121,168,0.4); }

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes msgSlide {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40%           { transform: scale(1); }
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .setup-card { padding: 32px 22px; }
  .selection-header h1 { font-size: 1.6rem; }
  .persona-card { width: 100%; max-width: 320px; padding: 28px 22px 24px; }
  .message { max-width: 88%; font-size: 0.88rem; }
  .chat-input-area input { padding: 12px 16px; }
  .send-btn { width: 42px; height: 42px; }
}