/* Ultra-Light CSS for Pinloom - Functional Approach */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0a0a0a; --panel: #1f1f23; --element: #27272a; --border: #3f3f46;
  --text: #e4e4e7; --secondary: #a1a1aa; --accent: #93c47d; --danger: #c53030;
  --user: #2d5a27; --assistant: #2c2b3a; --tool: #1e1b4b; --file: #713f12;
  --gap-sm: 8px; --gap-md: 16px; --gap-lg: 24px; --radius: 6px;
}

body {
  font-family: system-ui, sans-serif; line-height: 1.6;
  color: var(--text); background: var(--bg);
  height: 100svh; overflow: hidden;
  position: fixed; width: 100%; height: 100svh; top: 0; left: 0;
}

/* Layout */
.flex { display: flex; }
.col { flex-direction: column; }
.center { align-items: center; justify-content: center; }
.between { justify-content: space-between; }
.gap-sm { gap: var(--gap-sm); }
.gap-md { gap: var(--gap-md); }
.gap-lg { gap: var(--gap-lg); }
.w-full { width: 100%; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.flex-1 { flex: 1; }
.shrink { min-width: 0; }
.hidden { display: none !important; }

/* Spacing */
.p-sm { padding: var(--gap-sm); }
.p-md { padding: var(--gap-md); }
.p-lg { padding: var(--gap-lg); }
.px-md { padding-left: var(--gap-md); padding-right: var(--gap-md); }
.py-sm { padding-top: var(--gap-sm); padding-bottom: var(--gap-sm); }
.py-md { padding-top: var(--gap-md); padding-bottom: var(--gap-md); }
.m-auto { margin: auto; }
.mb-md { margin-bottom: var(--gap-md); }

/* Typography */
.text-lg { font-size: 1.4rem; }
.text-md { font-size: 1rem; }
.text-sm { font-size: 0.9rem; }
.text-xs { font-size: 0.75rem; }
.bold { font-weight: 600; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.text-accent { color: var(--accent); }
.text-secondary { color: var(--secondary); }

/* Components */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.element { background: var(--element); border: 1px solid var(--border); border-radius: var(--radius); }
.btn { padding: 10px 16px; background: var(--element); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; font-size: 14px; font-weight: 500; }
.btn:hover { background: #3f3f46; }
.btn:active { transform: translateY(1px); }
.btn[data-type="primary"] { background: var(--accent); color: white; border-color: var(--accent); }
.btn[data-type="danger"] { background: var(--danger); color: white; border-color: var(--danger); }

.input, .form-input { width: 100%; padding: 10px 12px; background: var(--element); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: 14px; }
.input:focus, .form-input:focus { outline: 2px solid var(--accent); background: #2f2f35; }

select { width: 100%; padding: 10px 12px; background: #1a1a1e; color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: 14px; }
select:focus { outline: 2px solid var(--accent); background: #2f2f35; }

textarea { width: 100%; padding: 10px 12px; background: var(--element); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: 14px; min-height: 120px; }
textarea:focus { outline: 2px solid var(--accent); background: #2f2f35; }

input[type="number"] { width: 100%; padding: 10px 12px; background: var(--element); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: 14px; }
input[type="number"]:focus { outline: 2px solid var(--accent); background: #2f2f35; }

/* App Structure */
#app { height: 100svh; display: flex; flex-direction: column; background: var(--bg); overflow: hidden; }

.section { height: 100%; display: flex; flex-direction: column; }

/* Auth */
.auth-container { max-width: 380px; margin: auto; padding: 32px 20px; text-align: center; }
.auth-method-toggle { display: inline-flex; gap: 8px; margin-bottom: 24px; background: var(--element); padding: 4px; border-radius: 10px; border: 1px solid var(--border); width: 100%; justify-content: center; }
.auth-method { flex: 1; padding: 10px 16px; border: none; border-radius: 8px; background: transparent; color: var(--secondary); cursor: pointer; font-size: 0.9rem; font-weight: 500; }
.auth-method.active { background: var(--accent); color: white; }

.form-group { margin-bottom: 16px; text-align: left; }

#login-btn, #password-login-btn { width: auto; margin-top: 10px; }

/* Header */
.chat-header { background: var(--panel); border-bottom: 1px solid var(--border); padding: 12px 16px; padding-top: max(12px, env(safe-area-inset-top)); }
.header-content { display: flex; justify-content: space-between; align-items: center; gap: 12px; width: 100%; }
.header-left { display: flex; align-items: center; gap: 8px; }
.header-left .btn, .header-right .btn { padding: 10px 16px; }
.model-display { display: flex; align-items: center; gap: 6px; padding: 6px 10px; background: var(--element); border-radius: var(--radius); border: 1px solid var(--border); font-size: 0.85rem; max-width: 120px; }
.model-name { color: var(--accent); font-weight: 600; }

/* Session Controls */
.session-controls-wrapper { 
  background: var(--panel); 
  border-bottom: 1px solid var(--border); 
  padding: 10px 16px;
  transition: all 0.2s ease;
}
.session-controls-wrapper.collapsed { 
  padding: 0;
  border: none;
  max-height: 0;
  overflow: hidden;
  display: none;
}
.session-controls { 
  display: flex; 
  gap: 10px; 
  align-items: center;
  padding: 8px 0;
}
.session-controls select { 
  flex: 1; 
  min-width: 180px; 
}

/* Chat */
.chat-history { flex: 1; overflow-y: auto; padding: 20px 16px; display: flex; flex-direction: column; gap: 16px; background: var(--bg); }
.message { max-width: 85%; padding: 14px 18px; border-radius: var(--radius); font-size: 0.95rem; line-height: 1.5; position: relative; }
.message[data-role="user"] { align-self: flex-end; background: var(--user); color: white; border-bottom-right-radius: 4px; }
.message[data-role="assistant"] { align-self: flex-start; background: var(--element); color: var(--text); border-bottom-left-radius: 4px; border: 1px solid var(--border); }
.message[data-role="tool"] { align-self: flex-start; background: var(--tool); color: var(--text); border-bottom-left-radius: 4px; border: 1px solid #4c1d95; }
/* CSS rule for file attachments */
.message[data-role="user"][data-type="file"] { 
    background: var(--file) !important; 
    color: #fef3c7 !important; 
    border: 1px solid #d97706 !important; 
    align-self: flex-start !important; 
    justify-content: flex-start !important;
}

.message-role { font-size: 0.7rem; font-weight: 600; margin-bottom: 5px; text-transform: uppercase; letter-spacing: 0.5px; }
.message[data-role="user"] .message-role { color: #a7f3d0; }
.message[data-role="assistant"] .message-role { color: #93c5fd; }
.message[data-role="tool"] .message-role { color: #c4b5fd; }
.message[data-role="user"][data-type="file"] .message-role { color: #fde68a; }

.message-content { white-space: pre-wrap; word-break: break-word; }
.message-content h1, .message-content h2, .message-content h3 { margin-top: 14px; margin-bottom: 6px; color: inherit; }
.message-content p { margin-bottom: 10px; }
.message-content a { color: #60a5fa; text-decoration: underline; }
.message-content a:hover { color: #93c5fd; text-decoration: none; }
.message-content ul, .message-content ol { padding-left: 1.5rem; margin: 10px 0; }
.message-content li { margin-bottom: 5px; }
.message-content li:last-child { margin-bottom: 0; }
.message-content code { background: rgba(0, 0, 0, 0.2); padding: 2px 5px; border-radius: 3px; font-family: monospace; font-size: 0.85em; }
.message-content pre { background: rgba(0, 0, 0, 0.3); padding: 10px; border-radius: 6px; overflow-x: auto; margin: 10px 0; border: 1px solid rgba(255, 255, 255, 0.1); }

/* Tool call and file attachment headers */
.tool-call-header, .file-attachment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    font-size: 0.85rem;
}

.tool-icon, .file-icon {
    font-size: 1rem;
}

.tool-name, .file-name {
    font-weight: 500;
    color: var(--text);
}

.tool-size, .file-size {
    color: var(--secondary);
    font-size: 0.75rem;
}

.copy-button { background-color: transparent; color: var(--secondary); border: 1px solid var(--border); border-radius: 5px; padding: 5px 10px; font-size: 0.75rem; cursor: pointer; }
.copy-button:hover { background-color: var(--border); color: var(--text); }

/* Input Area */
.input-area { 
    position: relative;
    padding: 16px; 
    background: var(--panel); 
    border-top: 1px solid var(--border); 
}
.message-input { display: flex; flex-direction: column; gap: 14px; }
#user-input { width: 100%; min-height: 100px; padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius); resize: vertical; font-family: inherit; font-size: 0.95rem; background: var(--element); color: var(--text); }
#user-input:focus { outline: 2px solid var(--accent); background: #2f2f35; }
.input-controls { display: flex; justify-content: flex-end; gap: 10px; }

/* Settings */
.settings-panel { position: fixed; top: 0; right: 0; width: 360px; height: 100%; background: var(--panel); border-left: 1px solid var(--border); z-index: 1000; overflow-y: auto; transform: translateX(0); transition: transform 0.3s ease; }
.settings-panel.hidden { transform: translateX(100%); }
.settings-content { padding: 20px; }
.settings-content h2 { margin-top: 0; margin-bottom: 20px; color: var(--accent); font-size: 1.4rem; }
.setting-group { margin-bottom: 20px; }
.setting-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 0.85rem; color: var(--text); }
.setting-group input[type="range"] { width: 100%; margin-bottom: 6px; height: 5px; background: var(--border); border-radius: 2.5px; outline: none; }
.setting-group input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; background: var(--accent); border-radius: 50%; cursor: pointer; }
#temp-setting-value { display: inline-block; min-width: 32px; text-align: center; font-weight: 600; font-size: 0.85rem; color: var(--accent); }

/* Status & Footer */
.status-area { position: fixed; bottom: max(16px, env(safe-area-inset-bottom)); left: calc(max(16px, env(safe-area-inset-left)) + 120px); font-size: 0.75rem; color: var(--text); background: rgba(31, 31, 35, 0.9); padding: 6px 12px; border-radius: 4px; z-index: 1000; max-width: 300px; word-wrap: break-word; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2); }
.status-area[data-type="info"] { border-left: 3px solid var(--accent); }
.status-area[data-type="error"] { border-left: 3px solid var(--danger); }
.status-area[data-type="processing"] { border-left: 3px solid #60a5fa; }
.status-area[data-type="success"] { border-left: 3px solid #4ade80; }

.app-name-footer { position: fixed; bottom: max(16px, env(safe-area-inset-bottom)); left: max(16px, env(safe-area-inset-left)); font-size: 0.8rem; color: var(--secondary); background: rgba(31, 31, 35, 0.7); padding: 4px 8px; border-radius: 4px; z-index: 999; }

/* Responsive */
@media (max-width: 768px) {
  .chat-header { padding: 10px 12px; }
  .header-content { gap: 6px; }
  .text-lg { font-size: 1.1rem; }
  .model-display { padding: 5px 8px; font-size: 0.75rem; }
  .session-controls { flex-direction: row; justify-content: flex-end; gap: 10px; }
  .message { max-width: 90%; padding: 12px 16px; }
  .settings-panel { width: 300px; }
  .auth-container { margin: 16px; padding: 28px 16px; }
  .chat-history { padding: 16px 12px; gap: 14px; }
  #user-input { min-height: 90px; padding: 12px 16px; }
  .app-name-footer { bottom: max(12px, env(safe-area-inset-bottom)); left: max(12px, env(safe-area-inset-left)); font-size: 0.7rem; }
  .status-area { bottom: max(12px, env(safe-area-inset-bottom)); left: calc(max(12px, env(safe-area-inset-left)) + 100px); font-size: 0.7rem; }
}

@media (max-width: 480px) {
  .header-content { 
    gap: 4px;
    padding: 0 4px;
    flex-wrap: nowrap;
  }
  .header-content .text-lg { display: none !important; }
  .model-display { 
    max-width: 60px !important;
    padding: 2px 4px;
    font-size: 0.65rem;
    margin-left: 0;
  }
  .model-label { display: none; }
  .header-left { 
    gap: 4px;
    flex: 0 0 auto;
    order: 1;
  }
  .header-center {
    flex: 1 1 auto;
    order: 2;
    min-width: 0;
    padding-top: 0;
    margin: 0 4px;
  }
  .header-right {
    flex: 0 0 auto;
    order: 3;
    justify-content: flex-end;
    gap: 4px;
  }
  .username {
    display: none;
  }
  .mobile-hidden {
    display: inline-flex !important;
  }
  .message { max-width: 95%; padding: 10px 14px; font-size: 0.85rem; }
  .btn { padding: 6px 8px; font-size: 12px; }
  .session-controls { padding: 8px; }
  .session-controls.collapsed { display: none !important; }
  .input-area { padding: 12px; }
  #user-input { min-height: 80px; padding: 10px 14px; }
  .settings-panel { width: 260px; }
  .settings-content h2 { font-size: 1.2rem; }
  .app-name-footer { bottom: max(10px, env(safe-area-inset-bottom)); left: max(10px, env(safe-area-inset-left)); font-size: 0.65rem; }
}

/* Extra small screens (iPhone 430x932 and similar) */
@media (max-width: 430px) and (max-height: 932px) {
  .header-content { 
    gap: 2px;
    padding: 0 2px;
  }
  .model-display { 
    max-width: 50px !important;
    padding: 1px 3px;
    font-size: 0.6rem;
  }
  .header-left { 
    gap: 2px;
  }
  .header-center {
    margin: 0 2px;
  }
  .header-right {
    gap: 2px;
  }
  .btn { padding: 4px 6px; font-size: 11px; }
  .status-area { padding: 2px; font-size: 0.65rem; }
}


.username {
  font-size: 0.75rem;
  color: var(--secondary);
  margin-top: 1px;
  margin: auto 0 0 8px;
  align-self: center;
}

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.model-display {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: var(--element);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  max-width: 100px;
  width: fit-content;
  margin-left: 8px;
  align-self: center;
}

.model-name {
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Move status area to header */
.status-area {
  position: static;
  bottom: auto;
  left: auto;
  font-size: 0.7rem;
  max-width: none;
  margin: 0;
  padding: 2px 4px;
  background: rgba(31, 31, 35, 0.9);
  border-radius: var(--radius);
  box-shadow: none;
  z-index: auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Hide old positioning */
/*
.status-area:not(.hidden) {
  display: block;
}
*/