* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
  min-height: 100vh;
}

body {
  font-family: var(--font-poppins), -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--company-background, linear-gradient(135deg, #00797C 0%, #1A658F 100%));
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  color: var(--company-text-color, #ffffff);
}

/* UCAR Branding Variables */
:root {
  /* UCAR Official Colors */
  --ucar-green: #00797C;
  --nsf-ncar-blue: #1A658F;
  --deep-blue: #012169;
  --highlight-green: #A8C700;
  --cool-gray: #53565A;
  --background-blue: #C3D7EE;
  
  /* Company branding variables using UCAR colors */
  --company-primary-color: var(--ucar-green);
  --company-secondary-color: var(--nsf-ncar-blue);
  --company-accent-color: var(--highlight-green);
  --company-deep-blue: var(--deep-blue);
  --company-gray: var(--cool-gray);
  --company-background: linear-gradient(135deg, var(--ucar-green) 0%, var(--nsf-ncar-blue) 100%);
  --company-text-color: #ffffff;
  --company-card-background: rgba(255, 255, 255, 0.98);
  --company-card-text: var(--deep-blue);
  
  /* Fonts */
  --font-poppins: var(--font-poppins);
  --font-cormorant: var(--font-cormorant);
}

/* Main container */
.main-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  position: relative;
}

/* Company logo container */
.company-logo-container {
  position: absolute;
  top: 2rem;
  left: 2rem;
  z-index: 10;
}

.company-logo {
  max-width: 200px;
  max-height: 80px;
  width: auto;
  height: auto;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Content card */
.content-card {
  background: var(--company-card-background);
  color: var(--company-card-text);
  border-radius: 16px;
  padding: 3rem;
  max-width: 900px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  margin-top: 4rem;
}

/* Header */
.app-header {
  text-align: center;
  margin-bottom: 2rem;
}

.app-header h1 {
  font-family: var(--font-poppins);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--company-primary-color);
  letter-spacing: -0.02em;
}

.app-header p {
  font-family: var(--font-poppins);
  font-size: 1.1rem;
  color: var(--company-gray);
  font-weight: 400;
}

/* Authentication section */
.auth-section {
  text-align: center;
  padding: 2rem;
  margin-bottom: 2rem;
}

.auth-section p {
  font-family: var(--font-poppins);
  margin-bottom: 1.5rem;
  color: var(--company-gray);
  font-size: 1rem;
}

.auth-button {
  font-family: var(--font-poppins);
  background: var(--company-primary-color);
  color: white;
  border: none;
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 121, 124, 0.3);
  letter-spacing: 0.01em;
}

.auth-button:hover {
  background: var(--company-secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 101, 143, 0.4);
}

.auth-button:focus {
  outline: 2px solid var(--highlight-green);
  outline-offset: 2px;
}

.auth-button:active {
  transform: translateY(0);
}

.auth-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* User info section */
.user-info-section {
  margin-top: 2rem;
}

.user-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--background-blue);
}

.user-info-header h2 {
  font-family: var(--font-poppins);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--company-primary-color);
  letter-spacing: -0.01em;
}

.logout-button {
  font-family: var(--font-poppins);
  background: var(--company-gray);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.logout-button:hover {
  background: var(--deep-blue);
  transform: translateY(-1px);
}

/* Claims display */
.claims-container {
  margin-top: 1.5rem;
}

.claims-title {
  font-family: var(--font-poppins);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--company-primary-color);
  letter-spacing: -0.01em;
}

.claims-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--background-blue);
  border-radius: 8px;
  background: white;
}

.claims-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-poppins);
  font-size: 0.9rem;
}

.claims-table thead {
  background: var(--company-primary-color);
  color: white;
}

.claims-table th {
  padding: 0.75rem 0.5rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--company-secondary-color);
}

.claims-table tbody tr {
  border-bottom: 1px solid #e0e0e0;
  transition: background-color 0.2s ease;
}

.claims-table tbody tr:hover {
  background-color: #f8f9fa;
}

.claims-table tbody tr:last-child {
  border-bottom: none;
}

.claims-table td {
  padding: 0.6rem 0.5rem;
  vertical-align: top;
  word-break: break-word;
}

.claim-type {
  font-weight: 500;
  color: var(--company-primary-color);
  font-size: 0.85rem;
  max-width: 300px;
}

.claim-value-cell {
  font-family: 'Courier New', 'Monaco', monospace;
  font-size: 0.85rem;
  color: var(--company-card-text);
  max-width: 400px;
}

.claim-value-type {
  color: var(--company-gray);
  font-size: 0.8rem;
  text-transform: capitalize;
}

.claim-subject {
  color: var(--company-card-text);
  font-size: 0.85rem;
}

.claim-issuer {
  color: var(--company-card-text);
  font-size: 0.85rem;
  max-width: 250px;
}

.claims-footer {
  padding: 1rem;
  background: #f8f9fa;
  border-top: 1px solid var(--background-blue);
  font-family: var(--font-poppins);
  font-size: 0.9rem;
}

.claim-meta {
  margin: 0.5rem 0;
  color: var(--company-card-text);
}

.claim-meta strong {
  color: var(--company-primary-color);
  margin-right: 0.5rem;
}

/* Loading state */
.loading {
  font-family: var(--font-poppins);
  text-align: center;
  padding: 2rem;
  color: var(--company-gray);
}

/* Error state */
.error {
  font-family: var(--font-poppins);
  background: #fff3cd;
  border: 1px solid var(--highlight-green);
  color: var(--deep-blue);
  padding: 1rem;
  border-radius: 8px;
  margin: 1rem 0;
  border-left: 4px solid var(--highlight-green);
}

/* Responsive design */
@media (max-width: 768px) {
  .main-container {
    padding: 1rem;
  }

  .company-logo-container {
    position: relative;
    top: auto;
    left: auto;
    text-align: center;
    margin-bottom: 1rem;
  }

  .content-card {
    padding: 2rem 1.5rem;
    margin-top: 1rem;
  }

  .app-header h1 {
    font-size: 2rem;
  }

  .user-info-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .claims-table-wrapper {
    overflow-x: scroll;
  }

  .claims-table {
    font-size: 0.8rem;
  }

  .claims-table th,
  .claims-table td {
    padding: 0.5rem 0.3rem;
    font-size: 0.75rem;
  }

  .claim-type,
  .claim-value-cell,
  .claim-issuer {
    max-width: 150px;
  }
}