/* ============================
   Base Styles & Resets
============================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main, body > section:first-of-type {
  flex: 1;
}

footer {
  margin-top: auto;
}

/* ============================
   Navbar
============================ */
.navbar {
  padding: 0.75rem 1rem;
}

.navbar .container-fluid {
  padding: 0 3rem;
}

.navbar-logo {
  height: 100px;
  margin-right: 10px;
  vertical-align: middle;
}

.navbar-brand {
  font-weight: bold;
  font-size: 2.5rem;
  display: flex;
  align-items: center;
}

.navbar-nav {
  flex-wrap: nowrap; /* Prevent line breaks in navbar items */
  overflow-x: auto;  /* Allows horizontal scrolling if needed */
}

.navbar-nav .nav-item:not(:first-child) {
  margin-left: 20px;
}

.navbar-nav .nav-link {
  font-weight: 500;
  font-size: 2rem;
  transition: color 0.3s ease;
  white-space: nowrap; /* Prevents text from breaking into two lines */
}

.navbar-nav .nav-link:hover {
  color: #ffc107 !important;
}

/* ============================
   Header
============================ */
header {
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
}

header h1, header h2 {
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* ============================
   Cards
============================ */
.card {
  border: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.card-header {
  border-bottom: none;
  font-weight: 600;
}

/* ============================
   Buttons
============================ */
.btn-primary {
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  border: none;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,123,255,0.3);
}

/* ============================
   Forms
============================ */
.form-control, 
.form-select {
  border: 2px solid #e9ecef;
  border-radius: 8px;
  padding: 12px 15px;
  transition: border-color 0.3s ease;
}

.form-control:focus, 
.form-select:focus {
  border-color: #007bff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
  font-weight: 600;
  color: #495057;
  margin-bottom: 8px;
}

/* ============================
   Sections & Utility
============================ */
section {
  position: relative;
}

.bg-light {
  background-color: #f8f9fa !important;
}

.text-shadow {
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.gradient-bg {
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
}

.hover-scale {
  transition: transform 0.3s ease;
}

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

/* ============================
   Footer
============================ */
footer {
  background-color: #343a40 !important;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

/* ============================
   Responsive Adjustments
============================ */
@media (max-width: 1500px) {
  .navbar-logo { height: 60px; }
  .navbar-brand { font-size: 1.7rem; }
  .navbar-nav .nav-link { font-size: 1.2rem; }
  .navbar .container-fluid { padding: 0 1.5rem; }
}

@media (max-width: 1200px) {
  html { font-size: 16px; }
}

@media (max-width: 900px) {
  html { font-size: 15px; }
  .navbar-logo { max-width: 36px; max-height: 36px; }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  .navbar-logo { max-width: 32px; max-height: 32px; }
  .navbar-nav .nav-link { font-size: 1rem; padding: 0.5rem 0.8rem; }
  footer { font-size: 0.95rem; padding: 1rem 0.5rem; }
}

@media (max-width: 576px) {
  html { font-size: 13px; }
  .navbar-logo { max-width: 28px; max-height: 28px; }
  .navbar { padding: 0.5rem; }
  .navbar-nav .nav-link { font-size: 0.98rem; padding: 0.4rem 0.5rem; }
  .container, .container-fluid { padding: 0 8px; }
  footer { font-size: 0.9rem; padding: 0.7rem 0.3rem; }
}

@media (max-width: 400px) {
  html { font-size: 12px; }
  .navbar-logo { max-width: 22px; max-height: 22px; }
  .navbar-nav .nav-link { font-size: 0.93rem; }
  footer { font-size: 0.85rem; padding: 0.5rem 0.1rem; }
}