body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: linear-gradient(to right, #4facfe, #00f2fe);
  min-height: 100vh;
}

header {
  background: #2196f3;
  color: white;
  padding: 20px;
  text-align: center;
}

nav {
  background: #333;
  padding: 10px;
  text-align: center;
}

nav a {
  color: white;
  margin: 10px;
  text-decoration: none;
}

.section {
  padding: 40px;
  background: white;
  margin: 30px auto;
  max-width: 1000px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: block;
}

button {
  background: #2196f3;
  color: white;
  border: none;
  padding: 12px 25px;
  cursor: pointer;
  border-radius: 5px;
  font-size: 16px;
  transition: 0.3s;
}

button:hover {
  background: #1976d2;
}

table {
  width: 100%;
  border-collapse: collapse;
}

td, th {
  border: 1px solid #ccc;
  padding: 10px;
}

input, textarea, select {
  width: 100%;
  margin: 10px 0;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.whatsapp {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25D366;
  color: white;
  padding: 12px 20px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: bold;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.logo {
  width: 120px;
  height: auto;
  margin-bottom: 10px;
}

/* ================= UPGRADE (SAFE OVERRIDES) ================= */

/* Dark Premium Header */
header {
  background: linear-gradient(to right, #141e30, #243b55) !important;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* Navbar improvement */
nav {
  background: #0f172a !important;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav a {
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover {
  color: #38bdf8;
}

/* Section modern look */
.section {
  border-radius: 15px !important;
  transition: 0.3s;
}

.section:hover {
  transform: translateY(-5px);
}

/* Buttons upgrade */
button {
  border-radius: 25px !important;
  font-weight: 500;
}

button:hover {
  transform: scale(1.05);
}

/* Form styling */
input, textarea, select {
  border-radius: 10px !important;
  transition: 0.3s;
}

input:focus, textarea:focus, select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 5px rgba(59,130,246,0.5);
  outline: none;
}

/* Table header dark */
th {
  background: #1e293b;
  color: white;
}

/* WhatsApp button upgrade */
.whatsapp {
  border-radius: 50px !important;
  padding: 14px !important;
  font-size: 18px;
  transition: 0.3s;
}

.whatsapp:hover {
  transform: scale(1.1);
}

/* Hide login section by default */
#loginSection {
  display: none;
}

/* Smooth UI */
html {
  scroll-behavior: smooth;
}

body {
  background: url('https://images.unsplash.com/photo-1581578731548-c64695cc6952') no-repeat center center fixed;
  background-size: cover;
}

.section {
  background: rgba(255,255,255,0.9) !important;
  backdrop-filter: blur(5px);
}

body {
  position: relative;
  background: url('https://images.openai.com/static-rsc-3/jdZewbWR4DL1jBAJGqAkXGHocOYVfTdM3RomM-LFwS_pPh_r-E_Cp4n0u5mmn3nd47TuJB8xSsdmG15skXl0zEnJdtJMQTRM6UA7_lL46aU?purpose=fullsize&v=1') no-repeat center center fixed;
  background-size: cover;
}

/* Overlay to reduce opacity effect */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2); /* 👈 adjust opacity here */
  z-index: -1;
}

/* Keep your section clean */
.section {
  background: rgba(255,255,255,0.92) !important;
}