:root {
  --primary-color: #2563eb;
  --secondary-color: #7c3aed;
  --background-color: #f4f6fb;
  --surface-color: #ffffff;
  --text-color: #1f2937;
  --heading-color: #111827;
  --button-color: #2563eb;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size: 15px;
  --border-radius: 12px;
  --section-spacing: 4rem;
  --sidebar-width: 260px;
  --topbar-height: 64px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size);
  color: var(--text-color);
  background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-weight: 700;
}

a {
  text-decoration: none;
}

.btn-brand {
  background-color: var(--button-color);
  border-color: var(--button-color);
  color: #fff;
}

.btn-brand:hover {
  filter: brightness(0.92);
  color: #fff;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card-surface {
  background: var(--surface-color);
  border: 1px solid rgba(17, 24, 39, 0.06);
  border-radius: var(--border-radius);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

/* ---------- Guest layout (marketing + auth) ---------- */

.guest-navbar {
  background: var(--surface-color);
  border-bottom: 1px solid rgba(17, 24, 39, 0.06);
}

.navbar-floating {
  position: sticky;
  top: 1rem;
  z-index: 1050;
  max-width: 1120px;
  margin: 1rem auto 0;
  padding: 0.6rem 1.25rem;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid rgba(17, 24, 39, 0.06);
  border-radius: 999px;
  box-shadow: 0 8px 30px rgba(17, 24, 39, 0.08);
}

.navbar-floating .navbar-brand {
  font-family: var(--font-family);
}

.navbar-floating .nav-link {
  color: #374151;
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.navbar-floating .nav-link:hover {
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.08);
}

.navbar-floating .navbar-toggler {
  padding: 0.25rem 0.5rem;
}

.navbar-floating .navbar-toggler:focus {
  box-shadow: none;
}

@media (max-width: 991.98px) {
  .navbar-floating {
    border-radius: 24px;
  }

  .navbar-floating .navbar-collapse {
    padding-top: 0.5rem;
  }

  .navbar-floating .navbar-nav {
    align-items: flex-start;
  }
}

.auth-wrapper {
  min-height: calc(100vh - var(--topbar-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 2.25rem;
  border-radius: var(--border-radius);
}

.hero-section {
  padding: var(--section-spacing) 0;
}

/* ---------- Dashboard shell ---------- */

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

.app-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: #111827;
  color: #e5e7eb;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  transition: transform 0.2s ease;
  z-index: 1040;
}

.app-sidebar .brand {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.app-sidebar .nav-section-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca3af;
  padding: 1rem 1.25rem 0.35rem;
}

.app-sidebar .nav-link {
  color: #cbd5e1;
  padding: 0.55rem 1.25rem;
  border-radius: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
}

.app-sidebar .nav-link.disabled {
  color: #6b7280;
  cursor: default;
}

.app-sidebar .nav-link .badge-soon {
  margin-left: auto;
  font-size: 0.62rem;
}

.app-sidebar .nav-link:hover:not(.disabled) {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.app-sidebar .nav-link.active {
  background: var(--primary-color);
  color: #fff;
}

.app-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.app-topbar {
  height: var(--topbar-height);
  background: var(--surface-color);
  border-bottom: 1px solid rgba(17, 24, 39, 0.06);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.app-content {
  padding: 1.75rem;
  flex: 1;
}

.sidebar-toggle {
  display: none;
}

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
}

.stat-card .stat-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.show {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: inline-flex;
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1030;
  }
}