/* layout.css - Premium SaaS layout styles */

:root {
  /* Fallback tokens in case variables.css is not loaded */
  --bg-color: #F7F9FC;
  --text-main: #0B1220;
  --text-muted: #667085;
  --primary-blue: #295CFF;
  --neon-green: #B7FF38;
  --border-color: #E2E8F0;
  --white: #FFFFFF;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background-color: var(--white, #FFFFFF);
  border-bottom: 1px solid var(--border-color, #E2E8F0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  box-shadow: var(--shadow-sm);
}

.header-left, .header-center, .header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

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

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo .tld {
  color: var(--primary-blue);
}

.nav-link {
  font-size: 0.875rem; /* text-sm */
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary-blue);
  transition: width 0.2s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.header-action {
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
  position: relative;
}

.header-action:hover {
  background-color: var(--bg-color);
}

.header-action .badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--primary-blue);
  color: var(--white);
  font-size: 0.625rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  transform: translate(25%, -25%);
}

.header-action .dot {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 8px;
  height: 8px;
  background-color: var(--neon-green);
  border-radius: 50%;
  border: 2px solid var(--white);
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md, 14px);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.1s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: #1a45d1;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-signin {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-md, 14px);
  transition: background-color 0.2s ease;
}

.btn-signin:hover {
  background-color: var(--bg-color);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-color);
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.hamburger-menu {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
}

/* ==========================================================================
   Page Layouts
   ========================================================================== */

.page-content {
  min-height: calc(100vh - 64px);
  padding: 40px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-header {
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0 0 8px 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0;
  line-height: 1.5;
}

.page-actions {
  display: flex;
  gap: 12px;
}

.split-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 18px);
  padding: 24px;
  position: sticky;
  top: 96px;
}

.main-area {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ==========================================================================
   Landing Page Sections
   ========================================================================== */

.section {
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-centered {
  text-align: center;
}

.data-strip {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 18px);
  padding: 32px;
  margin: 40px 0;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  gap: 24px;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.app-footer {
  background-color: var(--white);
  border-top: 1px solid var(--border-color);
  padding: 48px 24px;
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-main);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ==========================================================================
   Demo Mode Indicator
   ========================================================================== */

.demo-indicator {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: #1a1a1a;
  color: #a3a3a3;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 9999;
  border: 1px solid #333;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  font-family: monospace;
}

.demo-indicator span {
  color: #fff;
}

.demo-indicator select {
  background: transparent;
  color: var(--neon-green);
  border: none;
  font-size: 0.75rem;
  font-family: monospace;
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.demo-indicator select option {
  background-color: #1a1a1a;
  color: #fff;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */

@media (max-width: 768px) {
  .header-center {
    display: none;
  }
  
  .header-right .btn-primary,
  .header-right .btn-signin,
  .header-right .nav-link {
    display: none;
  }

  .hamburger-menu {
    display: block;
  }

  .split-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: static;
  }
  
  .page-header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .section {
    padding: 60px 16px;
  }
  
  .page-content {
    padding: 24px 16px;
  }
  
  .data-strip {
    flex-direction: column;
    padding: 24px;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}