/* ═══════════════════════════════════════════════════════
   Iron Steed Labs — Research Assistant Chat UI
   Brand: Gold #C9A020 + Forest Green #1B6B3A
   ═══════════════════════════════════════════════════════ */

/* ─── Design Tokens ───────────────────────────────────── */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-body: 'General Sans', 'Inter', -apple-system, sans-serif;
}

/* ─── Brand Theme ─────────────────────────────────────── */
[data-theme='dark'] {
  /* Backgrounds — dark with very slight warm undertone */
  --color-bg:              #0c0c0a;
  --color-surface:         #141412;
  --color-surface-2:       #1a1a17;
  --color-surface-elevated:#222220;
  --color-border:          #2e2e28;
  --color-border-subtle:   #1e1e1c;

  /* Text */
  --color-text:            #ede8d8;
  --color-text-muted:      #8a8578;
  --color-text-faint:      #565248;

  /* GOLD — Iron Steed primary (from label background) */
  --color-gold:            #c9a020;
  --color-gold-hover:      #d9b030;
  --color-gold-active:     #b88c18;
  --color-gold-muted:      rgba(201, 160, 32, 0.14);
  --color-gold-ring:       rgba(201, 160, 32, 0.35);

  /* GREEN — Iron Steed secondary (from label text/ribbons) */
  --color-green:           #1b6b3a;
  --color-green-hover:     #22824a;
  --color-green-active:    #155430;
  --color-green-muted:     rgba(27, 107, 58, 0.16);
  --color-green-bright:    #2a9455;  /* visible on dark bg */

  /* Semantic aliases */
  --color-accent:          var(--color-gold);
  --color-accent-hover:    var(--color-gold-hover);
  --color-accent-muted:    var(--color-gold-muted);

  /* Chat bubbles */
  --color-user-bubble:     #c9a020;
  --color-user-text:       #0c0c0a;
  --color-bot-bubble:      #141a15;   /* dark, slight green tint */
  --color-bot-border:      #1e2a20;
  --color-bot-text:        #ede8d8;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.35);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
  overflow: hidden;
}

/* ─── App Layout ──────────────────────────────────────── */
.app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 720px;
  margin: 0 auto;
}

/* ─── Header ──────────────────────────────────────────── */
.header {
  flex-shrink: 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

/* ─── Stallion Logo Badge ─────────────────────────────── */
/* Gold circle + black horse (mirrors real label design) */
.logo-badge {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-gold);
  overflow: hidden;
  flex-shrink: 0;
  isolation: isolate;           /* contain blend modes */
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 2px var(--color-gold-ring);
}

.logo-badge img {
  width: 82%;
  height: 82%;
  object-fit: contain;
  mix-blend-mode: multiply;     /* white bg disappears → black horse on gold */
  display: block;
}

/* ─── Brand Text ──────────────────────────────────────── */
.brand-text {
  min-width: 0;
}

.brand-text h1 {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-text);
  white-space: nowrap;
}

.brand-text h1 span {
  color: var(--color-gold);
}

.brand-tag {
  font-size: var(--text-xs);
  color: var(--color-green-bright);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ─── Status Indicator ────────────────────────────────── */
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-green-bright);
  animation: pulse 2.5s ease-in-out infinite;
}

.status-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(42, 148, 85, 0); }
  50%       { opacity: 0.8; box-shadow: 0 0 0 4px rgba(42, 148, 85, 0); }
}

/* ─── Gold divider under header ───────────────────────── */
.header::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green) 0%, var(--color-gold) 50%, var(--color-green) 100%);
  opacity: 0.6;
}

/* ─── Chat Container ──────────────────────────────────── */
.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5);
  scroll-behavior: smooth;
}

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
}

/* ─── Messages ────────────────────────────────────────── */
.message {
  display: flex;
  gap: var(--space-3);
  max-width: 88%;
  animation: messageIn 280ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.bot-message  { align-self: flex-start; }
.user-message { align-self: flex-end; flex-direction: row-reverse; }

/* Bot avatar — small gold badge */
.message-avatar {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-gold);
  overflow: hidden;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.message-avatar img {
  width: 86%;
  height: 86%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.user-message .message-avatar {
  background: var(--color-green-muted);
  border: 1px solid var(--color-green);
  isolation: initial;
}

.user-message .message-avatar svg {
  color: var(--color-green-bright);
}

.message-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.message-bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  line-height: 1.56;
  font-size: var(--text-sm);
}

.message-bubble p { max-width: none; }
.message-bubble p + p { margin-top: var(--space-2); }

.bot-message .message-bubble {
  background: var(--color-bot-bubble);
  color: var(--color-bot-text);
  border: 1px solid var(--color-bot-border);
  border-top-left-radius: var(--space-1);
}

.user-message .message-bubble {
  background: var(--color-user-bubble);
  color: var(--color-user-text);
  border-top-right-radius: var(--space-1);
  font-weight: 500;
}

.message-time {
  font-size: 0.68rem;
  color: var(--color-text-faint);
  padding: 0 var(--space-1);
}

.user-message .message-time { text-align: right; }

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

/* ─── Typing Indicator ────────────────────────────────── */
.typing-indicator {
  display: flex;
  gap: 5px;
  padding: var(--space-3) var(--space-4);
  align-items: center;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-gold);
  opacity: 0.5;
  animation: typing 1.3s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.30s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30%           { transform: translateY(-5px); opacity: 1; }
}

/* ─── Quick Action Chips ──────────────────────────────── */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-left: 44px;
}

.chip {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: var(--color-gold-muted);
}

/* ─── Input Area ──────────────────────────────────────── */
.input-area {
  flex-shrink: 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-4) var(--space-5);
}

.input-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.input-row:focus-within {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-muted);
}

textarea {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  resize: none;
  min-height: 24px;
  max-height: 120px;
  line-height: 1.5;
  padding: var(--space-1) 0;
}

textarea::placeholder { color: var(--color-text-faint); }

.send-btn {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--color-gold);
  color: #0c0c0a;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  transition: all var(--transition-interactive);
}

.send-btn:hover {
  background: var(--color-gold-hover);
  transform: scale(1.05);
}

.send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

/* ─── Footer row ──────────────────────────────────────── */
.input-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-1);
}

.disclaimer {
  font-size: 0.68rem;
  color: var(--color-text-faint);
  font-style: italic;
}

.contact-link {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-green-bright);
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-interactive);
}

.contact-link:hover { color: var(--color-gold); }

/* ─── Lead Modal ──────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 200ms ease;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-gold);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  width: 90%;
  max-width: 400px;
  position: relative;
  animation: slideUp 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.modal-logo-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-gold);
  overflow: hidden;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-logo-badge img {
  width: 84%;
  height: 84%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.modal-logo-text {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
}

.modal h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.modal p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 1.4rem;
  color: var(--color-text-faint);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  z-index: 10;
  transition: color var(--transition-interactive);
}

.modal-close:hover { color: var(--color-text); }

.modal form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.modal input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.modal input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-muted);
}

.modal input::placeholder { color: var(--color-text-faint); }

.btn-primary {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-gold);
  color: #0c0c0a;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all var(--transition-interactive);
}

.btn-primary:hover { background: var(--color-gold-hover); transform: translateY(-1px); }

/* ─── Green accent strip on bot messages ──────────────── */
.bot-message .message-bubble {
  border-left: 3px solid var(--color-green);
}

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

.fade-in { animation: fadeIn 400ms ease both; }

/* ─── Scrollbar ───────────────────────────────────────── */
.chat-container::-webkit-scrollbar { width: 5px; }
.chat-container::-webkit-scrollbar-track { background: transparent; }
.chat-container::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}
.chat-container::-webkit-scrollbar-thumb:hover { background: var(--color-gold-active); }

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 480px) {
  .header-inner { padding: var(--space-3) var(--space-4); }
  .chat-container { padding: var(--space-4); }
  .input-area { padding: var(--space-3) var(--space-4); }
  .message { max-width: 94%; }
  .quick-actions { padding-left: 0; }
  .logo-badge { width: 40px; height: 40px; }
  .brand-text h1 { font-size: var(--text-base); }
}