:root {
  /* Colors */
  --color-primary: #0D7377;
  --color-primary-dark: #055160;
  --color-accent: #14919B;
  --color-bg: #F0F7F8;
  --color-surface: #FFFFFF;
  --color-text: #1A1A1A;
  --color-text-muted: #666666;
  --color-text-light: #999999;
  --color-success: #27AE60;
  --color-error: #E74C3C;
  --color-warning: #F39C12;
  --color-info: #3498DB;
  --color-border: #D4DEDF;
  --color-border-light: #E8F1F2;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Fonts */
  --font-heading: 'Montserrat', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Typography */

h1 {
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary);
}

h2 {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

h4 {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

small {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Forms */

label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

input,
select,
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 16px; /* Prevent zoom on iOS */
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  -webkit-appearance: none; /* Remove iOS default styling */
  appearance: none;
}

input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  margin-right: var(--spacing-sm);
  accent-color: var(--color-primary);
  -webkit-appearance: auto;
  appearance: auto;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(20, 145, 155, 0.1);
}

input:disabled,
select:disabled {
  background-color: var(--color-border-light);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* Utilities */

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-error {
  color: var(--color-error);
}

.text-success {
  color: var(--color-success);
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

/* Print styles */

@media print {
  body {
    background-color: white;
  }
  .no-print {
    display: none !important;
  }
}