:root {
  --primary: #09224c;
  --primary-dark: #061833;
  --primary-light: #0d2f66;
  --accent: #2196F3;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.14);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
}

/* Reset default styles */
.site-header {
  margin: 0;
  padding: 0;
}

/* Top Navbar */
.top-navbar {
  background: var(--gray-100);
  border-bottom: 1px solid rgba(9,34,76,0.12);
  padding: 0.85rem 0;
  position: relative;
  z-index: 1001;
}

.top-navbar::after {
  content: '';
  position: absolute;
  bottom: 0; 
  left: 0; 
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  transform: scaleX(0);
  transition: var(--transition);
}

.top-navbar:hover::after {
  transform: scaleX(1);
}

.top-navbar .container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 15px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand:hover {
  transform: translateY(-2px);
}

.logo {
  height: 68px;
  width: auto;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.1));
  transition: var(--transition);
}

.navbar-brand:hover .logo {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

.brand-text {
  line-height: 1.3;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
  letter-spacing: -0.5px;
}

.brand-subtitle {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  opacity: 0.9;
}

.top-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn {
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  white-space: nowrap;
}

.btn-login {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-login:hover {
  background: var(--primary);
  color: white;
}

/* Profile Button Styles */
.btn-profile {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-profile:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(9,34,76,0.3);
}

.btn-profile:hover .user-name {
  color: white !important;
}

/* Dropdown positioning */
.dropdown {
  position: relative;
}

.profile-img {
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
}



/* Profile Dropdown */
.profile-dropdown {
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  margin-top: 0.5rem;
  z-index: 1050;
  display: none;
}

.profile-dropdown.show {
  display: block;
}

.profile-dropdown .dropdown-item {
  padding: 0.75rem 1.25rem;
  font-weight: 500;
  transition: var(--transition);
  color: var(--primary);
}

.profile-dropdown .dropdown-item:hover {
  background: var(--primary);
  color: white;
  padding-left: 1.5rem;
  transform: translateX(4px);
}

.profile-dropdown .dropdown-item i {
  margin-right: 0.5rem;
  width: 16px;
}

.profile-dropdown .dropdown-divider {
  margin: 0.25rem 0;
}

.btn-appointment {
  background: var(--primary);
  color: white;
  border: 2px solid var(--primary);
  box-shadow: 0 6px 20px rgba(9,34,76,0.3);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(9,34,76,0.35);
  
}

.btn-appointment:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.2);
  transform: scale(0);
  border-radius: 50%;
  transition: transform 0.6s;
}

.btn:active::before {
  transform: scale(3);
}

/* Main Navbar */
.main-navbar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0;
}

.main-navbar .container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 15px;
  position: relative;
}

.main-navbar.scrolled {
  background: rgba(6,24,51,0.95);
  box-shadow: var(--shadow-lg);
}

.navbar-toggler {
  border: 2px solid rgba(255,255,255,0.3);
  padding: 0.5rem 0.75rem;
  background: transparent;
  border-radius: 8px;
  transition: var(--transition);
  display: none;
  cursor: pointer;
}

.navbar-toggler:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
}

.navbar-toggler:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.2);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width: 1.5em;
  height: 1.5em;
  display: block;
}

.navbar-collapse {
  flex-grow: 0;
}

/* Show navbar items by default on large screens */
@media (min-width: 992px) {
  .navbar-collapse {
    display: flex !important;
  }
}

.navbar-nav {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: white !important;
  padding: 1rem 1.6rem !important;
  border-radius: var(--radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  position: relative;
  transition: var(--transition);
  text-decoration: none;
  display: block;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 12px;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 70%;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
  color: white !important;
}

/* Dropdown */
.dropdown-menu {
  background: white;
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  margin-top: 0.5rem;
  padding: 0.75rem;
  min-width: 220px;
}

.dropdown-item {
  padding: 0.9rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
  color: var(--primary);
  text-decoration: none;
  display: block;
}

.dropdown-item:hover {
  background: var(--primary);
  color: white !important;
  padding-left: 2rem;
  transform: translateX(6px);
}

/* Mobile Styles - Professional App Design */
@media (max-width: 991.98px) {
  /* Compact Top Navbar for Mobile */
  .top-navbar {
    padding: 0.75rem 0;
    background: #ffffff;
    border-bottom: 1px solid rgba(9,34,76,0.1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  }
  
  .top-navbar::after {
    display: none;
  }
  
  .top-navbar .container {
    padding: 0 12px;
  }
  
  .top-navbar .d-flex {
    flex-direction: row !important;
    justify-content: space-between !important;
    align-items: center !important;
    gap: 0.5rem;
  }
  
  .navbar-brand {
    gap: 0.6rem;
    flex: 1;
    max-width: calc(100% - 140px);
  }
  
  .logo {
    height: 48px;
    filter: none;
    flex-shrink: 0;
  }
  
  .brand-text {
    flex: 1;
    min-width: 0;
  }
  
  .brand-title {
    font-size: 1.5rem;
    color: var(--primary);
    background: none;
    -webkit-text-fill-color: var(--primary);
    line-height: 1.3;
    white-space: normal;
    word-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .brand-subtitle {
    font-size: 1.0rem;
    color: var(--primary);
    opacity: 0.7;
    letter-spacing: 0.8px;
    margin-top: 2px;
  }
  
  .top-actions {
    gap: 0.4rem;
    flex-shrink: 0;
  }
  
  .btn {
    padding: 0.5rem 0.8rem;
    font-size: 0.75rem;
    border-radius: 8px;
  }
  
  .btn i {
    font-size: 1rem;
  }
  
  .btn-login {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
  }
  
  .btn-appointment {
    background: var(--primary);
    color: white;
    border: 1.5px solid var(--primary);
    box-shadow: 0 4px 12px rgba(9,34,76,0.25);
  }
  
 
  /* Mobile Main Navbar */
  .main-navbar {
    background: var(--primary);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 0.6rem 0;
  }
  
  .main-navbar .container {
    padding: 0 12px;
    display: flex;
    justify-content: flex-start;
  }
  
  /* Show toggle button on mobile - Left aligned */
  .navbar-toggler {
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 2px solid rgba(255,255,255,0.5);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    color: white;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  
  .navbar-toggler::after {
    content: 'Menu';
  }
  
  .navbar-toggler:active {
    transform: scale(0.95);
  }
  
  /* Hide navbar by default on mobile */
  .navbar-collapse:not(.show) {
    display: none;
  }
  
  .navbar-collapse.show {
    display: block !important;
    position: fixed;
    top: 0;
    left: 0;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 4px 0 20px rgba(0,0,0,0.3);
    z-index: 9999;
    animation: slideInLeft 0.3s ease-out;
    overflow-y: auto;
    padding: 0;
  }
  
  @keyframes slideInLeft {
    from {
      opacity: 0;
      transform: translateX(-100%);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
  
  /* Backdrop overlay */
  .navbar-collapse.show::after {
    content: '';
    position: fixed;
    top: 0;
    left: 85%;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: -1;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }
  
  /* Close button for mobile menu */
  .navbar-collapse.show::before {
    content: '✕';
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10000;
  }
  
  /* Menu Header */
  .navbar-nav::before {
    content: 'Navigation';
    display: block;
    padding: 1.5rem 1.25rem 0.75rem;
    color: rgba(255,255,255,0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 0.5rem;
  }
  
  .navbar-nav {
    flex-direction: column;
    gap: 0;
    padding: 3.5rem 0 2rem;
    max-width: 100%;
    margin: 0;
  }
  
  .nav-item {
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  
  .nav-link {
    padding: 1rem 1.25rem !important;
    color: white !important;
    font-size: 0.95rem;
    text-align: left;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    letter-spacing: 0.3px;
    font-weight: 500;
  }
  
  .nav-link::before {
    display: none;
  }
  
  .nav-link::after {
    content: '›';
    font-size: 1.3rem;
    font-weight: 300;
    opacity: 0.4;
    transition: var(--transition);
  }
  
  .nav-link:hover {
    background: rgba(255,255,255,0.1);
    transform: none;
    padding-left: 1.75rem !important;
  }
  
  .nav-link:hover::after {
    opacity: 1;
    transform: translateX(5px);
  }
  
  .nav-link.active {
    background: rgba(33, 150, 243, 0.25);
    border-left: 4px solid var(--accent);
    font-weight: 600;
  }
  
  /* Mobile Dropdown */
  .dropdown-menu {
    position: static !important;
    transform: none !important;
    background: rgba(0,0,0,0.15);
    margin: 0;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
    border-left: 3px solid rgba(33, 150, 243, 0.5);
  }
  
  .dropdown-item {
    padding: 0.85rem 1.25rem 0.85rem 2rem;
    color: rgba(255,255,255,0.85);
    font-size: 0.88rem;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-weight: 400;
  }
  
  .dropdown-item:hover {
    background: rgba(255,255,255,0.1);
    color: white !important;
    padding-left: 2.5rem;
    transform: none;
  }
  
  .dropdown-item:last-child {
    border-bottom: none;
  }
  
  .dropdown-toggle::after {
    display: inline-block;
    margin-left: auto;
    vertical-align: 0.1em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
  }
}


/* Extra Small Screens */
@media (max-width: 576px) {
  .navbar-brand {
    max-width: calc(100% - 120px);
  }
  
  .brand-title { 
    font-size: 0.7rem;
    line-height: 1.25;
  }
  
  .brand-subtitle {
    font-size: 0.6rem;
  }
  
  .logo { 
    height: 42px; 
  }
  
  .btn { 
    padding: 0.45rem 0.7rem; 
    font-size: 0.7rem;
    gap: 0.3rem;
  }
  
  .btn i {
    font-size: 0.9rem;
  }
  
  .btn span {
    display: none;
  }
  
  .top-actions {
    gap: 0.3rem;
  }
  
  .navbar-toggler {
    padding: 0.45rem 0.9rem;
    font-size: 0.75rem;
  }
  
  .navbar-collapse.show {
    width: 80%;
    max-width: 280px;
  }
  
  .nav-link {
    font-size: 0.9rem;
    padding: 0.9rem 1.1rem !important;
  }
  
  .dropdown-item {
    font-size: 0.82rem;
    padding: 0.75rem 1.1rem 0.75rem 1.75rem;
  }
}

/* Landscape Mobile */
@media (max-width: 991.98px) and (orientation: landscape) {
  .navbar-collapse.show {
    width: 60%;
    max-width: 350px;
  }
  
  .navbar-nav {
    padding: 3rem 0 1rem;
  }
  
  .nav-link {
    padding: 0.8rem 1.1rem !important;
    font-size: 0.88rem;
  }
  
  .dropdown-item {
    padding: 0.7rem 1.1rem 0.7rem 1.75rem;
    font-size: 0.82rem;
  }
}

/* Real Close Button - Clickable */
.mobile-menu-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10001;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: none; /* Hidden by default */
}

.mobile-menu-close:hover {
  background: rgba(255,255,255,0.25);
  transform: scale(1.1);
}

.mobile-menu-close:active {
  transform: scale(0.95);
}

/* Show close button only when menu is open on mobile */
@media (max-width: 991.98px) {
  .navbar-collapse.show .mobile-menu-close {
    display: flex !important;
  }
}