/* Global styles for all pages */
/* Color variables */
:root {
  --bs-primary: #106735;
  --bs-success: #29998a;
  --bs-secondary: #255228;
  --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
  --color-bg: #dee2e6;
  --color-bg-light: #fff;
  --color-bg-dark: #272727;
  --color-bg-darker: #1f1f1f;
  --color-accent-blue: #2f8fbb;
  --color-accent-blue-light: #83d8ff;
  --color-accent-blue-bg: #f0f8f5;
  --color-error-border: #f44336;
  --color-success-border: #4caf50;
  --color-info-banner-code-bg: #333;
  --color-primary: #106735;
  --color-primary-dark: #255228;
  --color-secondary: #29998a;
  --color-secondary-dark: #1f4a21;
  --color-accent: #1a3a5a;
  --color-accent-light: #dbece6;
  --color-border-light: #e0e0e0;
  --color-border-primary: #106735;
  --color-error: #dc3545;
  --color-text: #222;
  --color-spinner: #b7e2c2;
  --color-spinner-border: rgba(255, 255, 255, 0.3);
  --color-error-bg: #fff5f5;
  --color-error-text: #c53030;
  --color-shadow-light: rgba(0, 0, 0, 0.075);
  --color-shadow-border: rgba(0, 0, 0, 0.125);
  --color-shadow-hover: rgba(0, 0, 0, 0.08);
  --color-shadow-bg: rgba(0, 0, 0, 0.03);
  --color-muted: #6c757d;
  --color-text-secondary: #495057;
  --color-focus-shadow: rgba(16, 103, 53, 0.1);
  --box-shadow-main: 0 4px 24px rgba(16, 103, 53, 0.2);
  --box-shadow-focus: 0 0 3px 3px rgba(16, 103, 53, 0.5);
  --box-shadow-btn-focus: 0 4px 14px rgba(16, 103, 53, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen,
    Ubuntu, Cantarell, sans-serif;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  font-size: 16px;
  background: var(--color-bg);
}
h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  font-weight: 600;
}
h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  font-weight: 400;
}
h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}
h4 {
  font-size: 1rem;
  margin-bottom: 10px;
}
.container,
.form-container {
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--box-shadow-main);
  padding: 0;
  border: 1px solid var(--color-primary);
  border-radius: 12px;
}

/* Custom Bootstrap color variables for data-bs-theme="light" */
[data-bs-theme='light'] {
  --bs-primary: var(--color-primary);
  --bs-primary: var(--bs-primary);
  --bs-success: var(--color-secondary);
  --bs-success: var(--bs-success);
  --bs-secondary: var(--color-secondary);
  --bs-secondary: var(--bs-secondary);
  --bs-body-bg: var(--color-bg-light);
  --bs-body-color: var(--color-text);
  --bs-btn-focus-box-shadow: var(--box-shadow-btn-focus);
}

/* Override Bootstrap btn-primary with custom green theme */
.btn-primary {
  --bs-btn-color: var(--color-bg-light);
  --bs-btn-bg: var(--color-primary);
  --bs-btn-border-color: var(--color-primary);
  --bs-btn-hover-color: var(--color-bg-light);
  --bs-btn-hover-bg: var(--color-primary-dark);
  --bs-btn-hover-border-color: var(--color-primary-dark);
  --bs-btn-focus-shadow: var(--bs-primary);
  --bs-btn-active-color: var(--color-bg-light);
  --bs-btn-active-bg: var(--color-primary-dark);
  --bs-btn-active-border-color: var(--color-secondary-dark);
  --bs-btn-active-shadow: var(--bs-btn-active-shadow);
  --bs-btn-disabled-color: var(--color-bg-light);
  --bs-btn-disabled-bg: var(--color-primary);
  --bs-btn-disabled-border-color: var(--color-primary);
}

.btn,
button {
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s, box-shadow 0.3s, transform 0.3s;
  flex: 1;
  background-color: var(--color-primary);
  color: var(--color-bg-light);
}

button.btn:hover,
button:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-bg-light);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-main);
}

button.btn-accent {
  background: linear-gradient(
    135deg,
    var(--color-secondary) 0%,
    var(--color-primary) 100%
  );
}

button.btn-accent:hover {
  background: linear-gradient(
    135deg,
    var(--color-secondary) 0%,
    var(--color-primary-dark) 100%
  );
}

button.btn-outline-secondary {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  background: var(--color-bg-light);
  color: var(--color-primary);
  border-radius: 6px;
}

button.btn-outline-secondary:hover,
button.btn-outline-secondary:focus-visible,
button.btn-outline-secondary:focus,
button.btn-outline-secondary:target,
button.btn-outline-secondary:active {
  outline: 2px solid var(--color-secondary) !important;
  background: var(--color-accent-light) !important;
  color: var(--color-primary-dark) !important;
  box-shadow: var(--box-shadow-btn-focus);
}

button:disabled,
button.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

button.btn:focus-visible {
  background-color: var(--color-primary);
  color: var(--color-bg-light);
  box-shadow: var(--box-shadow-focus);
}

button.btn:first-child:active {
  background-color: var(--color-primary-dark);
  color: var(--color-bg-light);
}

/* Scroll Button */
.scroll-button {
  position: fixed;
  z-index: 9999;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  color: #fff;
  border: none;
  display: block;
}

/* =====================
   Animations
   ===================== */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}