/* ============================================
   SISTEMA DE DISEÑO - Abogados Deudas
   ============================================ */

:root {
  /* Paleta de colores */
  --color-primary: #0F3D7A;
  --color-primary-light: #357DED;
  --color-success: #17A673;
  --color-text: #374151;
  --color-text-light: #6B7280;
  --color-gray-light: #F3F4F6;
  --color-gray-bg: #F9FAFB;
  --color-white: #FFFFFF;
  --color-danger: #DC2626;
  --color-warning: #F59E0B;

  /* Tipografías */
  --font-headings: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Espaciado */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Radios */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Sombras */
  --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);

  /* Z-index */
  --z-sticky: 100;
  --z-modal: 1000;
  --z-toast: 2000;

  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ============================================
   RESET Y NORMALIZE
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(1.875rem, 5vw, 3rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.875rem);
}

h4 {
  font-size: 1.125rem;
}

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

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

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

strong {
  font-weight: 600;
  color: var(--color-primary);
}

/* ============================================
   CONTENEDOR Y GRID
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   BOTONES
   ============================================ */

button,
.btn {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  white-space: nowrap;
  gap: var(--space-xs);
}

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

.btn-primary:hover {
  background-color: #128860;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-icon {
  padding: var(--space-xs);
  border-radius: 50%;
  min-width: 2.5rem;
  min-height: 2.5rem;
}

.btn-text {
  background: none;
  color: var(--color-primary-light);
  padding: 0;
}

.btn-text:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

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

/* ============================================
   FORMULARIOS
   ============================================ */

input,
select,
textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-white);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(53, 125, 237, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: #9CA3AF;
}

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

.form-group {
  margin-bottom: var(--space-lg);
}

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

label .required {
  color: var(--color-danger);
}

.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

input[type="checkbox"],
input[type="radio"] {
  width: auto;
  margin-right: var(--space-xs);
  accent-color: var(--color-success);
  cursor: pointer;
}

.form-error {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

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

.form-success {
  color: var(--color-success);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

.form-success.active {
  display: block;
}

/* ============================================
   TARJETAS
   ============================================ */

.card {
  background-color: var(--color-white);
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--color-gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card-title {
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.card-description {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ============================================
   BADGES Y ETIQUETAS
   ============================================ */

.badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
}

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

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

.badge-warning {
  background-color: var(--color-warning);
  color: var(--color-white);
}

.badge-light {
  background-color: var(--color-gray-light);
  color: var(--color-primary);
}

/* ============================================
   UTILIDADES
   ============================================ */

.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;
}

.visually-hidden {
  position: absolute !important;
  overflow: hidden;
  clip: rect(1px 1px 1px 1px);
  width: 1px;
  height: 1px;
  word-wrap: normal;
}

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

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

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

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

.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
.py-2xl { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
.py-3xl { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }

.px-sm { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-lg { padding-left: var(--space-lg); padding-right: var(--space-lg); }

.bg-light { background-color: var(--color-gray-light); }
.bg-white { background-color: var(--color-white); }
.bg-primary { background-color: var(--color-primary); }

.text-primary { color: var(--color-primary); }
.text-light { color: var(--color-text-light); }
.text-white { color: var(--color-white); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-center { justify-content: center; align-items: center; }
.flex-between { justify-content: space-between; align-items: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.hidden { display: none !important; }
.visible { display: block !important; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .container {
    padding: 0 var(--space-sm);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.125rem; }

  .btn {
    width: 100%;
  }
}