/* Budget Management System - Main Stylesheet */

:root {
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #0ea5e9;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --text-color: var(--gray-900);
  --text-light: var(--gray-600);
  --text-lighter: var(--gray-500);
  --bg-color: #ffffff;
  --bg-light: var(--gray-50);
  --border-color: var(--gray-200);

  --font-sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu",
    "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  --font-mono: "Monaco", "Courier New", monospace;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-full: 9999px;

  --transition: all 0.2s ease-in-out;
}

/* Reset & Defaults */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-light);
  color: var(--text-color);
  line-height: 1.6;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

h1 {
  font-size: 2rem;
}
h2 {
  font-size: 1.5rem;
}
h3 {
  font-size: 1.25rem;
}
h4 {
  font-size: 1.125rem;
}
h5 {
  font-size: 1rem;
}
h6 {
  font-size: 0.875rem;
}

p {
  margin-bottom: 1rem;
}

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

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

.text-link {
  color: var(--primary-color);
  font-weight: 500;
}

.text-link:hover {
  color: var(--primary-dark);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--gray-200);
  color: var(--text-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--gray-300);
}

.btn-success {
  background-color: var(--success-color);
  color: white;
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-color);
}

.form-control {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
  font-family: var(--font-sans);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control::placeholder {
  color: var(--text-lighter);
}

.form-check {
  display: flex;
  align-items: center;
}

.form-check-input {
  width: 1rem;
  height: 1rem;
  margin-right: 0.5rem;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.form-check-label {
  cursor: pointer;
  font-size: 0.875rem;
  margin-bottom: 0;
}

.form-error {
  color: var(--danger-color);
  font-size: 0.75rem;
  margin-top: 0.25rem;
  display: none;
}

.form-error.show {
  display: block;
}

.form-control.is-invalid {
  border-color: var(--danger-color);
}

/* Password input wrapper */
.password-input-wrapper {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-error,
.alert-danger {
  background-color: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fecaca;
}

.alert-warning {
  background-color: #fef3c7;
  color: #78350f;
  border: 1px solid #fde68a;
}

.alert-info {
  background-color: #cffafe;
  color: #0c4a6e;
  border: 1px solid #a5f3fc;
}

.alert-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  margin-left: 1rem;
}

/* Spinner */
.spinner-border {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  vertical-align: text-bottom;
  border: 0.25em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
  to {
    transform: rotate(360deg);
  }
}

/* Utilities */
.text-center {
  text-align: center;
}

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

.mb-1 {
  margin-bottom: 0.5rem;
}
.mb-2 {
  margin-bottom: 1rem;
}
.mb-3 {
  margin-bottom: 1.5rem;
}
.mb-4 {
  margin-bottom: 2rem;
}

.mt-1 {
  margin-top: 0.5rem;
}
.mt-2 {
  margin-top: 1rem;
}
.mt-3 {
  margin-top: 1.5rem;
}
.mt-4 {
  margin-top: 2rem;
}

.p-1 {
  padding: 0.5rem;
}
.p-2 {
  padding: 1rem;
}
.p-3 {
  padding: 1.5rem;
}
.p-4 {
  padding: 2rem;
}

/* Font Awesome Icon Utilities */
.fa {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: -0.125em;
}

/* Icon sizing utilities */
.icon-xs {
  font-size: 0.75rem;
}

.icon-sm {
  font-size: 0.875rem;
}

.icon-md {
  font-size: 1rem;
}

.icon-lg {
  font-size: 1.25rem;
}

.icon-xl {
  font-size: 1.5rem;
}

.icon-2xl {
  font-size: 2rem;
}

/* Icon color utilities */
.icon-primary {
  color: var(--primary-color);
}

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

.icon-warning {
  color: var(--warning-color);
}

.icon-danger {
  color: var(--danger-color);
}

.icon-info {
  color: var(--info-color);
}

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

/* Icon animation utilities */
.icon-spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.icon-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}