:root {
  --white: #ffffff;
}

body {
  margin: 1rem;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  background-attachment: fixed;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  color: var(--white);
  box-sizing: border-box;
  /* overflow: hidden; */
}

/* Index Page */
.index_container {
  text-align: center;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.05);
  padding: 60px 100px;
  border-radius: 15px;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

.initials {
  font-size: 45px;
  letter-spacing: 1.6px;
  margin-bottom: 40px;
  color: #4da8ff;
}

.index_navbar a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 25px;
  letter-spacing: 0.5px;
  position: relative;
  transition: color 0.3s ease;
}

.index_navbar a::after {
  content: '';
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: -6px;
  left: 0;
  background: #4da8ff;
  transition: width 0.3s ease;
}

.index_navbar a:hover::after {
  width: 100%;
}

/* LogIn Page */

.login-container {
  text-align: center;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.05);
  padding: 60px 100px;
  border-radius: 15px;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 500px;
}

.login-container h1 {
  font-size: 45px;
  letter-spacing: 1.6px;
  margin-bottom: 30px;
  color: #4da8ff;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-form label {
  font-weight: 600;
  text-align: left;
  color: var(--white);
  font-size: 20px;
}

.login-form input {
  padding: 10px;
  border-radius: 10px;
  border: none;
  font-size: 16px;
  outline: none;
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

button {
  background: linear-gradient(90deg, #4da8ff, #0077ff);
  color: var(--white);
  font-weight: 600;
  font-size: 20px;
  padding: 10px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s;
  margin-top: 8px;
}

button:hover {
  transform: scale(1.02);
}

.back-link {
  margin-top: 20px;
}

.back-link a {
  color: #4da8ff;
  text-decoration: none;
  transition: color 0.3s;
}

.back-link a:hover {
  color: #ffcc00;
}

/* Remarks Page */
body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 32, 39, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 10;
  text-align: center;
  padding: 16px 8px;
}

header h1 {
  margin: 8px 0 0;
  font-size: 28px;
  color: #e0f3ff;
}

.nav_bar,
.index_navbar {
  display: flex;
  justify-content: center;
  gap: 40px;
}

.nav_bar a {
  color: #4da8ff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav_bar a:hover {
  color: #ffcc00;
}

main {
  margin-top: 128px;
  width: min(90%, 800px);
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 48px;
}

article {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

section {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
}

h2 {
  color: #cce9ff;
  margin-top: 0;
  font-size: 21px;
}

p,
li {
  line-height: 1.6;
}

ul {
  padding-left: 20px;
}