/* ============================================
   GLOBAL CSS
   Fundación de estilos para toda la plataforma.
   Cargado en TODAS las páginas.
   
   SECCIONES:
   1. Google Fonts Import
   2. CSS Variables
   3. Reset & Base
   4. Tipografía
   5. Botones
   6. Inputs & Forms
   7. Cards
   8. Utilidades
   9. Modales
   10. Toast / Notificaciones
   11. Loading Overlay
   12. Animaciones
   13. Media Queries (Desktop)
   14. Scrollbar
   15. Accesibilidad
   ============================================ */


/* ============================================
   1. GOOGLE FONTS
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');


/* ============================================
   2. CSS VARIABLES
   ============================================ */

:root {

  /* Colores principales */
  --primary:          #1A7A4A;
  --primary-light:    #22A361;
  --primary-dark:     #145C38;
  --primary-bg:       #E8F5EE;

  /* Neutrales */
  --black:            #111111;
  --gray-900:         #222222;
  --gray-700:         #444444;
  --gray-500:         #777777;
  --gray-300:         #BBBBBB;
  --gray-100:         #F0F0F0;
  --gray-50:          #F7F7F7;
  --white:            #FFFFFF;

  /* Fondos */
  --bg-page:          #fbfbfb;
  --bg-card:          #FFFFFF;
  --bg-dark:          #111111;
  --bg-dark-card:     #1E1E1E;

  /* Textos */
  --text-primary:     #111111;
  --text-secondary:   #555555;
  --text-light:       #888888;
  --text-on-dark:     #FFFFFF;
  --text-on-primary:  #FFFFFF;

  /* Bordes */
  --border:           #E0E0E0;
  --border-focus:     #1A7A4A;

  /* Estados */
  --success:          #22A361;
  --success-bg:       #E8F5EE;
  --error:            #E53E3E;
  --error-bg:         #FFF5F5;
  --warning:          #D97706;
  --warning-bg:       #FFFBEB;
  --info:             #2B6CB0;
  --info-bg:          #EBF8FF;

  /* Tipografía */
  --font:             'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs:     12px;
  --font-size-sm:     14px;
  --font-size-base:   16px;
  --font-size-lg:     18px;
  --font-size-xl:     20px;
  --font-size-2xl:    24px;
  --font-size-3xl:    30px;
  --font-size-4xl:    36px;
  --font-size-5xl:    48px;

  /* Espaciado */
  --space-1:          4px;
  --space-2:          8px;
  --space-3:          12px;
  --space-4:          16px;
  --space-5:          20px;
  --space-6:          24px;
  --space-8:          32px;
  --space-10:         40px;
  --space-12:         48px;
  --space-16:         64px;
  --space-20:         80px;

  /* Border Radius */
  --radius-sm:        6px;
  --radius-md:        10px;
  --radius-lg:        16px;
  --radius-xl:        24px;
  --radius-full:      9999px;

  /* Sombras */
  --shadow-sm:        0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:        0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg:        0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl:        0 16px 40px rgba(0,0,0,0.14);
  --shadow-green:     0 4px 20px rgba(26,122,74,0.25);

  /* Transiciones */
  --transition-fast:  0.15s ease;
  --transition-base:  0.25s ease;
  --transition-slow:  0.4s ease;

  /* Z-index */
  --z-dropdown:       1000;
  --z-sticky:         1010;
  --z-backdrop:       1040;
  --z-modal:          1050;
  --z-toast:          1070;
  --z-tooltip:        1080;

  /* Layout */
  --container-max:    1200px;
  --sidebar-width:    260px;
  --header-height:    64px;
  --page-padding:     20px;
}


/* ============================================
   3. RESET & BASE
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font);
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: var(--font);
  font-size: var(--font-size-base);
}


/* ============================================
   4. TIPOGRAFÍA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font);
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl);  }
h4 { font-size: var(--font-size-lg);  }
h5 { font-size: var(--font-size-base);}
h6 { font-size: var(--font-size-sm);  }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.text-xs    { font-size: var(--font-size-xs);   }
.text-sm    { font-size: var(--font-size-sm);   }
.text-base  { font-size: var(--font-size-base); }
.text-lg    { font-size: var(--font-size-lg);   }
.text-xl    { font-size: var(--font-size-xl);   }
.text-2xl   { font-size: var(--font-size-2xl);  }
.text-3xl   { font-size: var(--font-size-3xl);  }

.font-normal  { font-weight: 400; }
.font-medium  { font-weight: 500; }
.font-semibold{ font-weight: 600; }
.font-bold    { font-weight: 700; }
.font-black   { font-weight: 800; }

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

.text-primary   { color: var(--primary);        }
.text-dark      { color: var(--text-primary);   }
.text-medium    { color: var(--text-secondary); }
.text-muted     { color: var(--text-light);     }
.text-white     { color: var(--white);          }
.text-success   { color: var(--success);        }
.text-error     { color: var(--error);          }
.text-warning   { color: var(--warning);        }

.highlight {
  color: var(--primary);
}


/* ============================================
   5. BOTONES
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: var(--font);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
  text-decoration: none;
}

/* Primary — green filled */
.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-green);
}

.btn-primary:active {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(0);
}

/* Secondary — outlined */
.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--gray-300);
  background: var(--gray-50);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* Dark — black filled */
.btn-dark {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.btn-dark:hover {
  background: var(--gray-900);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Ghost — text only */
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: transparent;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

.btn-ghost:hover {
  background: var(--primary-bg);
  color: var(--primary-dark);
}

/* Danger — red */
.btn-danger {
  background: var(--error);
  color: var(--white);
  border-color: var(--error);
}

.btn-danger:hover {
  background: #C53030;
  border-color: #C53030;
  color: var(--white);
  transform: translateY(-1px);
}

/* Sizes */
.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-lg);
  min-height: 52px;
}

.btn-full {
  width: 100%;
}

/* Loading state */
.btn-loading {
  opacity: 0.7;
  pointer-events: none;
  position: relative;
}

.btn-loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: var(--space-2);
}


/* ============================================
   6. INPUTS & FORMS
   ============================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-label span.required {
  color: var(--error);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
  outline: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,122,74,0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--gray-300);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(229,62,62,0.10);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.form-error-msg {
  font-size: var(--font-size-xs);
  color: var(--error);
  font-weight: 500;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group .form-input {
  padding-left: 44px;
}

.input-group .input-icon {
  position: absolute;
  left: 14px;
  color: var(--gray-300);
  font-size: var(--font-size-lg);
  pointer-events: none;
}


/* ============================================
   7. CARDS
   ============================================ */

.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  margin-top: var(--space-1);
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}


/* ============================================
   8. UTILIDADES
   ============================================ */

/* Contenedor principal */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

/* Flex helpers */
.flex           { display: flex;                          }
.flex-col       { display: flex; flex-direction: column;  }
.flex-center    { display: flex; align-items: center; justify-content: center; }
.flex-between   { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap      { flex-wrap: wrap;                        }
.items-center   { align-items: center;                    }
.items-start    { align-items: flex-start;                }
.justify-center { justify-content: center;                }
.gap-2          { gap: var(--space-2);                    }
.gap-3          { gap: var(--space-3);                    }
.gap-4          { gap: var(--space-4);                    }
.gap-6          { gap: var(--space-6);                    }

/* Grid helpers */
.grid     { display: grid; }
.grid-2   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.grid-3   { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4   { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }

/* Spacing */
.mt-2  { margin-top: var(--space-2);  }
.mt-4  { margin-top: var(--space-4);  }
.mt-6  { margin-top: var(--space-6);  }
.mt-8  { margin-top: var(--space-8);  }
.mb-2  { margin-bottom: var(--space-2); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

/* Display */
.hidden   { display: none !important;   }
.block    { display: block;             }
.relative { position: relative;         }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

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

.badge-error {
  background: var(--error-bg);
  color: var(--error);
}

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

.badge-gray {
  background: var(--gray-100);
  color: var(--gray-700);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-6) 0;
}

/* Section padding */
.section {
  padding: var(--space-12) 0;
}

/* Status dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.active   { background: var(--success); }
.status-dot.inactive { background: var(--error);   }
.status-dot.pending  { background: var(--warning);  }


/* ============================================
   9. MODALES
   ============================================ */

.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-backdrop);
  align-items: center;
  justify-content: center;
  padding: var(--page-padding);
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.25s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--text-light);
  background: var(--gray-100);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}

.modal-close-btn:hover {
  background: var(--gray-300);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}


/* ============================================
   10. TOAST / NOTIFICACIONES
   ============================================ */

.toast-container {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  min-width: 280px;
  max-width: 360px;
  pointer-events: all;
  animation: toastSlideIn 0.3s ease;
}

.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--error);   }
.toast.warning { border-left-color: var(--warning);  }
.toast.info    { border-left-color: var(--info);     }

.toast-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.toast-message {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
}

.toast-close {
  color: var(--text-light);
  font-size: var(--font-size-lg);
  cursor: pointer;
  flex-shrink: 0;
  background: none;
  border: none;
  padding: 0;
  line-height: 1;
}

.toast-close:hover {
  color: var(--text-primary);
}

.toast.hiding {
  animation: toastSlideOut 0.3s ease forwards;
}


/* ============================================
   11. LOADING OVERLAY
   ============================================ */

.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(2px);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-4);
}

.loading-overlay.open {
  display: flex;
}

.loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--gray-100);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.loading-text {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  font-weight: 500;
}


/* ============================================
   12. ANIMACIONES
   ============================================ */

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

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.animate-fade-in {
  animation: fadeIn 0.4s ease forwards;
}


/* ============================================
   13. MEDIA QUERIES — DESKTOP
   ============================================ */

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-4xl); }
  h2 { font-size: var(--font-size-3xl); }
  h3 { font-size: var(--font-size-2xl); }
}

@media (min-width: 768px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-20) 0;
  }
}

@media (min-width: 768px) {
  .toast-container {
    bottom: var(--space-8);
    right: var(--space-8);
  }
}

@media (min-width: 1024px) {
  :root {
    --page-padding: 32px;
  }
}


/* ============================================
   14. SCROLLBAR
   ============================================ */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--gray-50);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}


/* ============================================
   15. ACCESIBILIDAD
   ============================================ */

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}