:root {
  --sidebar-dark: #2d3e36;
  --header-bg: #ffffff;
  --nav-active: rgba(255, 255, 255, 0.12);
  --text-grey: #a0a0a0;
  --border-light: #ececec;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #f9fbfb;
}

/* ================= HEADER ================= */
.analytics-header {
  position: fixed;
  top: 0;
  left: 0;
  height: 90px;
  width: 100%;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 1000;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.hamburger {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: #333;
}

.brand-logo {
  height: 45px;
}

.brand-text h1 {
  font-size: 1.25rem;
  margin: 0;
  color: #2b3a33;
  font-weight: 600;
}

.subtext {
  font-size: 0.75rem;
  color: var(--text-grey);
}

/* ================= SIDEBAR ================= */
.side-nav {
  position: fixed;
  top: 90px;
  left: 0;
  width: 280px;
  height: calc(100vh - 90px);
  background: var(--sidebar-dark);
  padding: 20px 12px 40px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
  z-index: 10000;
}

.sidebar-collapsed .side-nav {
  transform: translateX(-100%);
}

.main-content,
.page-content,
.content {
  transition: margin-left 0.3s ease, padding 0.3s ease;
  margin-left: 280px;
  padding-top: 95px;
  padding-left: 40px;
  padding-right: 40px;
}

.sidebar-collapsed .main-content,
.sidebar-collapsed .page-content,
.sidebar-collapsed .content {
  margin-left: 0;
  padding-left: 40px;
}

.nav-links {
  flex-grow: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 15px;
  color: #f1f1f1;
  text-decoration: none;
  padding: 14px 20px;
  border-radius: 10px;
  font-size: 0.95rem;
  margin-bottom: 4px;
  transition: 0.2s ease;
}

.nav-link.active {
  background: var(--nav-active);
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 1.1rem;
}

.nav-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
  margin: 15px 10px;
}

.nav-footer {
  margin-top: auto;
}

/* ================= MODAL ================= */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.5);
}

.modal-content {
  background-color: #fff;
  margin: 15% auto;
  padding: 30px 20px;
  border-radius: 10px;
  width: 90%;
  max-width: 400px;
  text-align: center;
  position: relative;
}

.modal-content h2 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #2b3a33;
}

.modal-content p {
  color: #555;
  margin-bottom: 20px;
}

.modal-login-btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #2d3e36;
  color: #fff;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  transition: 0.2s ease;
}

.modal-login-btn:hover {
  background-color: #4a5a51;
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 24px;
  cursor: pointer;
  color: #555;
}

.close-btn:hover {
  color: #000;
}

.nav-link:hover,
.nav-link.active {
  background:#778a86;
  color:#111827;
  border-radius:10px;
}

/* ================= AUTH MODAL ================= */
.auth-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.auth-modal.show {
  display: flex;
}

.auth-box {
  background: #fff;
  width: 360px;
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  position: relative;
}

.auth-box h2 {
  margin-bottom: 10px;
}

.auth-box p {
  font-size: 14px;
  color: #555;
}

.auth-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.auth-actions .btn {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

.btn.primary {
  background: #2563eb;
  color: #fff;
}

.btn.secondary {
  border: 1px solid #2563eb;
  color: #2563eb;
}

.close-modal {
  position: absolute;
  top: 10px;
  right: 14px;
  border: none;
  background: none;
  font-size: 22px;
  cursor: pointer;
}
body.dark-mode {
  --sidebar-dark: #0f172a; 
  --header-bg: #020617;     
  --nav-active: rgba(255, 255, 255, 0.1);
  --text-grey: #94a3b8;
  --border-light: rgba(255, 255, 255, 0.08);
  background-color: #020617;
  color: #e2e8f0;
}

body.dark-mode .analytics-header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-light);
}

body.dark-mode .brand-text h1 {
  color: #ffffff;
}

body.dark-mode .hamburger span {
  background: #ffffff;
}

body.dark-mode .side-nav {
  background: var(--sidebar-dark);
  border-right: 1px solid var(--border-light);
}

body.dark-mode .nav-link {
  color: #cbd5e1;
}

body.dark-mode .nav-link.active,
body.dark-mode .nav-link:hover {
  background: var(--nav-active);
  color: #ffffff;
}

body.dark-mode .modal-content,
body.dark-mode .auth-box {
  background: #1e293b;
  color: #f1f5f9;
}

body.dark-mode .modal-content h2,
body.dark-mode .modal-content p {
  color: #ffffff;
}




/* ================= MOBILE RESPONSIVE ================= */
@media (max-width: 768px) {


  .analytics-header {
    height: 70px;
    padding: 0 20px;
  }

  .brand-text h1 {
    font-size: 1rem;
  }

  .subtext {
    display: none;
  }

  .hamburger {
    z-index: 3000;
    position: relative;
  }

  .side-nav {
    width: 260px;
    top: 70px;
    height: calc(100vh - 70px);
    transform: translateX(-100%);
    z-index: 3000;
  }

 
  body:not(.sidebar-collapsed) .side-nav {
    transform: translateX(0);
  }

  .main-content,
  .page-content,
  .content {
    margin-left: 0;
    padding-top: 90px;
    padding-left: 20px;
    padding-right: 20px;
  }

  body:not(.sidebar-collapsed)::before {
  content: "";
  position: fixed;
  top: 70px;             
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.35);
  z-index: 2500;          
  pointer-events: none;   
}

}