/* ==============================================================================
   2027 IYF Global Camp - Student App Common Styles
   ============================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #1e3a8a;
  --primary-hover: #1e40af;
  --secondary-color: #0ea5e9;
  --accent-color: #f59e0b;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
}

body {
  font-family: 'Prompt', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Fullscreen Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  color: #ffffff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease-in-out;
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.spinner-border-custom {
  width: 3.5rem;
  height: 3.5rem;
  border-width: 0.3em;
  color: var(--secondary-color);
}

/* Navbar */
.student-navbar {
  background-color: #ffffff;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.navbar-brand-title {
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

/* Card */
.card-custom {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* Buttons */
.btn-primary-custom {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #ffffff;
  font-weight: 500;
  border-radius: 0.5rem;
  padding: 0.6rem 1.25rem;
  transition: all 0.2s;
}

.btn-primary-custom:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #ffffff;
}

.btn-primary-custom:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}