@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
  --bg: #f2e7db;
  --bg-card: #fffaf6;
  --text: #2b201c;
  --muted: #7b685f;
  --line: rgba(67,48,38,0.08);
  --accent: #9b4d36;
  --accent2: #d6a15d;
  --btn-text: #fffaf6;
  --border: rgba(67,48,38,0.12);
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow: 0 4px 20px rgba(43,32,28,0.1);
}

html {
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
}

.hidden {
  display: none !important;
}

.muted {
  color: var(--muted);
  font-size: 0.8125rem;
}

.app-layout {
  display: flex;
  height: 100vh;
}

.sidebar {
  width: 16rem;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.brand-mini {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--accent);
}

.brand-logo {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
}

.close-sidebar {
  width: 2rem;
  height: 2rem;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 8px;
  display: none;
}

.close-sidebar:hover {
  background: var(--line);
}

.sidebar-new {
  padding: 0.75rem 0.875rem;
}

.new-chat-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none;
  border-radius: var(--radius-full);
  color: var(--btn-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}

.new-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(155,77,54,0.2);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0.625rem;
}

.chat-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--muted);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
}

.chat-item:hover {
  background: var(--line);
  color: var(--text);
}

.chat-item.active {
  background: rgba(155,77,54,0.1);
  color: var(--accent);
}

.chat-item i {
  width: 1.25rem;
}

.sidebar-footer {
  padding: 0.625rem;
  border-top: 1px solid var(--border);
}

.user-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 0.75rem;
  border: none;
  background: none;
  border-radius: 10px;
  cursor: pointer;
  color: var(--text);
  font-size: 0.875rem;
}

.user-btn:hover {
  background: var(--line);
}

.user-avatar-mini {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--btn-text);
  font-size: 0.75rem;
  font-weight: 600;
}

.user-btn span {
  flex: 1;
  text-align: left;
}

.user-btn i {
  font-size: 0.75rem;
  color: var(--muted);
}

.main-content {
  flex: 1;
  margin-left: 16rem;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  min-width: 0;
}

.top-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.menu-btn {
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  border-radius: 8px;
  display: none;
}

.menu-btn:hover {
  background: var(--line);
  color: var(--text);
}

.top-header h1 {
  flex: 1;
  font-size: 1rem;
  font-weight: 500;
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

.action-btn {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.action-btn:hover {
  background: var(--line);
  color: var(--accent);
}

.action-btn.recording {
  background: var(--accent);
  color: var(--btn-text);
  border-color: var(--accent);
}

.content-area {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.view {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
}

.view.active {
  display: flex;
}

.welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

.welcome-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--btn-text);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.welcome h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.welcome p {
  color: var(--muted);
  max-width: 24rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: center;
}

.quick-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.15s;
}

.quick-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.input-bar {
  padding: 0.75rem 1rem 1rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0.375rem 0.5rem;
}

.mic-toggle,
.send-btn {
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.mic-toggle {
  background: transparent;
  color: var(--muted);
}

.mic-toggle:hover {
  color: var(--accent);
}

.mic-toggle.recording {
  background: var(--accent);
  color: var(--btn-text);
}

.send-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btn-text);
}

.send-btn:hover {
  transform: scale(1.05);
}

#msgInput {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.875rem;
  resize: none;
  max-height: 6rem;
  outline: none;
  line-height: 1.4;
  padding: 0.5rem 0;
}

#msgInput::placeholder {
  color: var(--muted);
}

.hint {
  font-size: 0.6875rem;
  color: var(--muted);
  text-align: center;
  margin-top: 0.5rem;
}

.view-content {
  padding: 1.25rem;
  max-width: 40rem;
  margin: 0 auto;
  width: 100%;
  overflow-y: auto;
  height: 100%;
}

.view-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.view-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
}

.back-btn {
  width: 2rem;
  height: 2rem;
  border: none;
  background: var(--bg-card);
  border-radius: 10px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-btn:hover {
  background: var(--line);
}

.count {
  font-size: 0.8125rem;
  color: var(--muted);
}

.filters {
  display: flex;
  gap: 0.5rem;
}

.filter-btn {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn.active {
  background: var(--accent);
  color: var(--btn-text);
  border-color: var(--accent);
}

.list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}

.empty i {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.4;
}

.profile-page {
  padding: 1.25rem;
  max-width: 40rem;
  margin: 0 auto;
  overflow-y: auto;
  height: 100%;
}

.profile-top {
  text-align: center;
  margin-bottom: 1.5rem;
}

.avatar-big {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--btn-text);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 auto 0.625rem;
  position: relative;
}

.edit-mark {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  color: var(--muted);
}

.profile-top h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.section-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 1rem 0 0.5rem 0.5rem;
}

.settings-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.setting-row {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.setting-row:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.setting-row:hover {
  background: var(--line);
}

.setting-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 0.875rem;
}

.setting-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.setting-info span:first-child {
  font-size: 0.9375rem;
}

.setting-info span:last-child {
  font-size: 0.75rem;
  color: var(--muted);
}

.setting-row i.fa-chevron-right {
  color: var(--muted);
  font-size: 0.75rem;
}

.setting-row.logout {
  color: var(--danger);
  justify-content: center;
}

.setting-row.logout i:first-child {
  font-size: 0.875rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.input-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.input-row input {
  flex: 1 1 200px;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

.input-row input:focus {
  border-color: var(--accent);
}

.save-btn {
  padding: 0.75rem 1.5rem;
  min-height: 48px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btn-text);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 12px rgba(155, 77, 54, 0.25);
}

.save-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(155, 77, 54, 0.35);
}

.message-box {
  margin-top: 0.75rem;
  padding: 1rem;
  border-radius: 14px;
  font-size: 0.9375rem;
  display: none;
}

.message-box.error {
  display: block;
  background: rgba(220,38,38,0.1);
  color: var(--danger);
}

.message-box.success {
  display: block;
  background: rgba(22,163,74,0.1);
  color: var(--success);
}

@media (min-width: 768px) {
  .input-row {
    flex-wrap: nowrap;
  }

  .input-row input {
    min-height: 52px;
    font-size: 1rem;
  }

  .save-btn {
    min-height: 52px;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .form-group {
    margin-bottom: 1.5rem;
  }

  .input-row input {
    min-height: 56px;
    padding: 1rem 1.25rem;
  }

  .save-btn {
    min-height: 56px;
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .close-sidebar {
    display: flex;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .menu-btn {
    display: flex;
  }
  
  .welcome h2 {
    font-size: 1.25rem;
  }
  
  .quick-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .quick-btn {
    width: 100%;
    justify-content: center;
  }
  
  .filters {
    flex-wrap: wrap;
  }
}

.board-card,
.workspace-hero,
.primary-actions,
.hero-actions,
.tab-row {
  overflow: visible;
}

.primary-actions > *,
.hero-actions > * {
  max-width: 100%;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .primary-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .primary-actions > * {
    width: 100%;
    min-height: 52px;
  }

  .hero-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .hero-actions > * {
    width: 100%;
  }
}