/* ==========================================================
   BolanAI — style.css
   Light mode only (warm/light). Dark mode removed.
   No frameworks, no icon libs.
   ========================================================== */

/* ---------- 1. Theme variables ---------- */
:root {
  /* Light palette */
  --bg-page: #F5F5F5;
  --bg-sidebar: #FFFFFF;
  --bg-main: #FFF8F0;
  --bg-bubble-ai: #FFFFFF;
  --bg-bubble-user: #7C3AED;
  --bg-composer: #FFFFFF;
  --bg-hover: #F0FDF4;
  --bg-code: #2C2C2C;
  --bg-code-head: #3a3a3a;
  --bg-menu: #FFFFFF;
  --bg-input: #FFFFFF;

  --text-primary: #333333;
  --text-secondary: #5D4037;
  --text-muted: #8a8a8a;
  --text-user-bubble: #FFFFFF;
  --text-code: #f5f5f5;

  --border: #e6e2da;
  --border-strong: #d8d3c8;

  --accent: #7C3AED;
  --accent-soft: rgba(124, 58, 237, 0.10);
  --accent-2: #14B8A6;
  --success: #1B5E20;
  --success-soft: #F0FDF4;
  --danger: #DC2626;
  --warn: #FF7043;
  --pink: #EC4899;
  --green: #22C55E;

  --shadow-sm: 0 1px 3px rgba(60, 50, 40, 0.08);
  --shadow-md: 0 4px 16px rgba(60, 50, 40, 0.10);
  --shadow-lg: 0 12px 40px rgba(60, 50, 40, 0.16);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --sidebar-w: 272px;
  --font-main: "Segoe UI", system-ui, -apple-system, "Noto Sans", "Noto Nastaliq Urdu", Roboto, Arial, sans-serif;
  --font-mono: "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
}


/* ---------- 2. Reset / base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

/* CRITICAL: author display rules (flex etc.) must never defeat the
   hidden attribute — otherwise lock overlay / menus show on load. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  font-family: var(--font-main);
  background: var(--bg-page);
  color: var(--text-primary);
  display: flex;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: background 0.18s ease, color 0.18s ease;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.icon-btn:disabled { opacity: 0.4; cursor: not-allowed; }
/* ---------- 3. Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  transform: translateX(-105%);
  transition: transform 0.25s ease;
  box-shadow: var(--shadow-lg);
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  height: 100dvh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 14px 12px;
  gap: 10px;
  z-index: 40;
}
.sidebar.open { transform: translateX(0); }

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text-primary);
}
.brand-mark {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}
.brand-name { font-size: 1.12rem; font-weight: 700; letter-spacing: 0.2px; }
.brand-accent { color: var(--accent); }
.sidebar-close { display: inline-flex; }

.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--bg-sidebar);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 14px;
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.new-chat-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.search-wrap { position: relative; display: flex; align-items: center; }
.search-icon {
  position: absolute;
  left: 11px;
  color: var(--text-muted);
  pointer-events: none;
}
#searchChats {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.88rem;
}
#searchChats::placeholder { color: var(--text-muted); }
#searchChats:focus { border-color: var(--accent); outline: none; }

.chat-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 2px;
  scrollbar-width: thin;
}
.chat-list::-webkit-scrollbar { width: 6px; }
.chat-list::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

.chat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  text-align: left;
  font-size: 0.88rem;
  width: 100%;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease;
}
.chat-item:hover { background: var(--bg-hover); }
.chat-item.active {
  background: var(--accent-soft);
  color: var(--text-primary);
  font-weight: 600;
}
.chat-item .ci-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-item .ci-del {
  opacity: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  flex-shrink: 0;
  transition: opacity 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.chat-item:hover .ci-del, .chat-item:focus-within .ci-del { opacity: 1; }
.ci-del:hover { color: var(--danger); background: rgba(220, 38, 38, 0.08); }
.chat-list-empty {
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 10px;
  text-align: center;
}
/* ---------- 4. Sidebar footer ---------- */
.sidebar-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}


/* About Developer icon — tooltip on hover/focus via ::after */
.dev-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: background 0.18s ease, color 0.18s ease;
}
.dev-link:hover, .dev-link:focus-visible {
  background: var(--bg-hover);
  color: var(--accent);
}
.dev-link::after {
  content: "About Developer";
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--text-primary);
  color: var(--bg-sidebar);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 60;
}
.dev-link:hover::after, .dev-link:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- 5. Overlay (mobile drawer) ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(40, 35, 30, 0.45);
  z-index: 35;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.overlay.show { opacity: 1; }

/* ---------- 6. Main area ---------- */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  min-width: 0;
  background: var(--bg-main);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-main);
  min-height: 56px;
}
.menu-btn { display: inline-flex; }
.topbar-title { font-weight: 700; font-size: 1rem; }
.topbar-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.topbar-status .dot {
  width: 7px; height: 7px;
  background: var(--accent-2);
  border-radius: 50%;
  animation: pulse 1.1s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ---------- 7. Chat area / messages ---------- */
.chat-area {
  flex: 1;
  overflow-y: auto;
  scroll-behavior: smooth;
  position: relative;
}
.chat-area::-webkit-scrollbar { width: 8px; }
.chat-area::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }

.empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  gap: 8px;
  pointer-events: none;
}
.empty-logo {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 20px;
  margin-bottom: 6px;
}
.empty-state h1 { font-size: 1.7rem; font-weight: 700; }
.empty-sub { font-size: 1rem; color: var(--text-secondary); }
.empty-lang { font-size: 0.86rem; color: var(--text-muted); }
.messages {
  max-width: 780px;
  margin: 0 auto;
  padding: 22px 18px 10px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.msg {
  display: flex;
  gap: 10px;
  max-width: 100%;
  animation: msgIn 0.25s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.msg.user { justify-content: flex-end; }

.avatar {
  width: 32px; height: 32px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.msg.ai .avatar {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}

.bubble {
  padding: 11px 15px;
  border-radius: 18px;
  font-size: 0.94rem;
  line-height: 1.65;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
  white-space: pre-wrap;
}
.msg.user .bubble {
  background: var(--bg-bubble-user);
  color: var(--text-user-bubble);
  border-bottom-right-radius: 6px;
  box-shadow: var(--shadow-sm);
  max-width: 82%;
}
.msg.ai .bubble {
  background: var(--bg-bubble-ai);
  border: 1px solid var(--border);
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-sm);
  max-width: 92%;
}
/* RTL support for Urdu responses */
.msg.ai .bubble[dir="rtl"] { text-align: right; border-bottom-left-radius: 18px; border-bottom-right-radius: 6px; }

/* Markdown-like rendered content inside AI bubbles */
.msg .md { white-space: normal; }
.md p { margin: 0 0 8px; }
.md p:last-child { margin-bottom: 0; }
.md h3, .md h2 { margin: 12px 0 6px; font-size: 1.02rem; font-weight: 700; }
.md ul, .md ol { margin: 4px 0 10px 20px; }
.md li { margin: 3px 0; }
.md blockquote {
  border-left: 3px solid var(--accent-2);
  padding: 2px 0 2px 10px;
  color: var(--text-secondary);
  margin: 8px 0;
}
.md code.inline {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--accent-soft);
  padding: 1px 5px;
  border-radius: 5px;
  direction: ltr;
  unicode-bidi: embed;
}
.md a { color: var(--accent); text-decoration: underline; }
.md strong { font-weight: 700; }

/* ---------- 8. Code blocks ---------- */
.code-block {
  margin: 10px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--bg-code-head);
  background: var(--bg-code);
  direction: ltr;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-code-head);
  color: var(--text-code);
  padding: 7px 12px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
}
.code-copy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: none;
  background: transparent;
  color: var(--text-code);
  font-size: 0.74rem;
  padding: 4px 8px;
  border-radius: 6px;
  opacity: 0.85;
  transition: background 0.15s ease, opacity 0.15s ease;
}
.code-copy:hover { background: rgba(255,255,255,0.12); opacity: 1; }
.code-body {
  padding: 12px 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-code);
  white-space: pre;
  tab-size: 2;
  max-height: 420px;
  overflow-y: auto;
}
.code-body.expanded { max-height: none; }
.code-more {
  width: 100%;
  border: none;
  border-top: 1px solid rgba(255,255,255,0.12);
  background: var(--bg-code-head);
  color: var(--text-code);
  font-size: 0.76rem;
  padding: 7px;
  opacity: 0.85;
}
.code-more:hover { opacity: 1; }

/* ---------- 9. Typing indicator ---------- */
.typing {
  display: inline-flex;
  gap: 5px;
  padding: 14px 16px;
  background: var(--bg-bubble-ai);
  border: 1px solid var(--border);
  border-radius: 18px;
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-sm);
}
.typing span {
  width: 7px; height: 7px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: bounce 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-5px); opacity: 1; }
}
/* ---------- 10. Composer ---------- */
.composer-zone {
  padding: 8px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--bg-main);
  position: relative;
}

.composer {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  background: var(--bg-composer);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 8px 8px;
  box-shadow: var(--shadow-md);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.composer:focus-within { border-color: var(--accent); }
.composer.locked { opacity: 0.55; }

#messageInput {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 8px 4px;
  resize: none;
  max-height: 180px;
  overflow-y: auto;
  min-height: 24px;
}
#messageInput:focus { outline: none; }
#messageInput::placeholder { color: var(--text-muted); }
#messageInput:disabled { opacity: 0.6; }

.composer-mic {
  width: 38px; height: 38px;
  border-radius: 50%;
}

.send-btn {
  width: 38px; height: 38px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.18s ease, transform 0.15s ease, opacity 0.18s ease;
}
.send-btn:hover:not(:disabled) { background: #6D28D9; transform: translateY(-1px); }
.send-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.composer-mic.listening {
  color: #fff;
  background: var(--danger);
  animation: pulse 1s ease-in-out infinite;
}

.composer-hint {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 7px;
}

/* Generic pop animation (re-used by toast) */
@keyframes menuIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
/* ---------- 11. Ad lock overlay (transparent + blurred, both themes) ---------- */
.lock-overlay {
  position: fixed;
  inset: 0;
  background: rgba(245, 245, 245, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

@supports not ((backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px))) {
  .lock-overlay { background: rgba(245, 245, 245, 0.92); }
}

.lock-card {
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  padding: 38px 34px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: menuIn 0.25s ease;
}
.lock-logo {
  width: 58px; height: 58px;
  margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 18px;
}
.lock-card h2 { font-size: 1.3rem; margin-bottom: 10px; }
.lock-card p { color: var(--text-secondary); font-size: 0.94rem; margin-bottom: 6px; }
.lock-sub { color: var(--text-muted) !important; font-size: 0.85rem !important; margin-bottom: 20px !important; }

.watch-ad-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 26px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}
.watch-ad-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.watch-ad-btn:disabled { opacity: 0.5; cursor: wait; }

.lock-error {
  color: var(--danger) !important;
  font-size: 0.84rem !important;
  margin-top: 16px !important;
  margin-bottom: 0 !important;
}

/* ---------- 12. Confirm dialog ---------- */
.confirm-card {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-menu);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 22px;
  z-index: 110;
  max-width: 340px;
  width: calc(100% - 40px);
  text-align: center;
}
.confirm-card p { font-size: 0.92rem; margin-bottom: 18px; }
.confirm-actions { display: flex; gap: 10px; justify-content: center; }
.confirm-actions button {
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.87rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
}
.confirm-actions .danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.confirm-actions .danger:hover { opacity: 0.9; }

/* ---------- 13. Toast ---------- */
.toast {
  position: fixed;
  bottom: 96px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-sidebar);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.84rem;
  box-shadow: var(--shadow-md);
  z-index: 120;
  animation: menuIn 0.2s ease;
  max-width: calc(100vw - 40px);
  text-align: center;
}

/* ---------- 14. Responsive ---------- */
@media (max-width: 900px) {
  .messages { padding: 16px 12px 8px; }
  .composer-zone { padding-left: 10px; padding-right: 10px; }
  .msg.user .bubble { max-width: 90%; }
  .msg.ai .bubble { max-width: 96%; }
  .toast { bottom: 110px; }
}

@media (max-width: 380px) {
  .brand-name { font-size: 1rem; }
  .empty-state h1 { font-size: 1.45rem; }
  .composer { padding: 6px; }
}

/* ---------- 15. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .chat-area { scroll-behavior: auto; }
}