:root {
  --text-primary: #0a2038;
  --text-secondary: #1e3a5f;
  --bg-gradient-start: #ff7e5f;
  --bg-gradient-end: #fcb530;
  --glass-bg: rgba(255, 255, 255, 0.4);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-hover: rgba(255, 255, 255, 0.55);
  --glass-shadow: rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  background-attachment: fixed;
  color: var(--text-primary);
  margin: 0;
  padding: 40px 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.5;
}

body.centered {
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.8s ease-out;
}

/* Profile specific styles */
header {
  text-align: center;
  margin-bottom: 35px;
}

header img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--glass-border);
  box-shadow: 0 8px 32px var(--glass-shadow);
  margin-bottom: 16px;
  transition: transform 0.3s ease;
}

header img:hover {
  transform: scale(1.05);
}

h1 {
  font-size: 1.7rem;
  margin: 0 0 4px 0;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.title-sub {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
  font-weight: 500;
}

.section-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  margin: 25px 0 12px;
  text-align: center;
  font-weight: 700;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

li a {
  display: block;
  text-align: center;
  padding: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 4px 6px var(--glass-shadow);
}

li a:hover {
  background: var(--glass-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 15px var(--glass-shadow);
  border-color: rgba(255, 255, 255, 0.8);
}

/* Error page specific styles */
.error-container {
  padding: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px var(--glass-shadow);
  text-align: center;
  width: 90%;
}

.error-code {
  font-size: 5rem;
  font-weight: 800;
  margin: 0;
  background: linear-gradient(to right, #cf2a1d, #d97706);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

h2.error-title {
  font-size: 1.5rem;
  margin: 15px 0 10px;
  font-weight: 700;
}

p.error-msg {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 25px;
  font-weight: 500;
}

a.button {
  display: inline-block;
  padding: 12px 24px;
  background: var(--glass-border);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

a.button:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: translateY(-2px);
  box-shadow: 0 8px 15px var(--glass-shadow);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}