/*
  TaskFlow · Sistema visual compartido (Fase 1)
  La hoja externa es la fuente principal de estilos del proyecto.
*/

:root {
  --color-primary: #a63420;
  --color-primary-dark: #8d2b1b;
  --color-sidebar: #24201c;
  --color-sidebar-muted: #d6ccbf;
  --color-background: #f6f1e8;
  --color-surface: #faf7f0;
  --color-text: #24201c;
  --color-text-soft: #473d33;
  --color-text-muted: #71675d;
  --color-border: #d6ccbf;
  --color-border-strong: #bbaea0;
  --color-surface-hover: #f3eee5;
  --color-neutral: #62594f;
  --color-neutral-soft: #e9e2d7;
  --color-success: #52715a;
  --color-success-soft: #e4ebe1;
  --color-info: #5a7180;
  --color-info-soft: #e2e9e9;
  --color-warning: #9b6a22;
  --color-warning-soft: #f2e6cc;
  --color-danger: #a63420;
  --color-danger-soft: #f3dfd9;
  --shadow-sm: none;
  --shadow-md: none;
  --radius-sm: 0;
  --radius-md: 0;
  --radius-lg: 0;
  --sidebar-width: 16.5rem;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Georgia, "Times New Roman", serif;
  background: var(--color-background);
  color: var(--color-text);
}

body {
  min-width: 20rem;
  margin: 0;
  background: var(--color-background);
  line-height: 1.5;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
.btn {
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

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

/* Tipografía */
h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.25rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

h2 {
  margin-bottom: 0.25rem;
  font-size: 1.125rem;
  line-height: 1.35;
}

h3 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  line-height: 1.4;
}

.eyebrow,
.section-subtitle,
.text-muted {
  color: var(--color-text-muted);
}

.eyebrow {
  margin-bottom: 0.25rem;
  font-size: 0.8125rem;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ==========================================================================
   Navegación Editorial Unificada (Referencia: dashboard.html)
   ========================================================================== */
.editorial-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  min-height: 5rem;
  align-items: stretch;
  border-bottom: 1px solid var(--color-border-strong);
  background: var(--color-surface);
}

.editorial-brand {
  display: flex;
  align-items: center;
  padding: 0 clamp(1.25rem, 4vw, 4rem);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -0.07em;
  color: var(--color-text);
}

.editorial-nav nav {
  display: flex;
  align-items: stretch;
  gap: clamp(1.25rem, 3vw, 3.25rem);
}

.editorial-nav__link {
  display: flex;
  position: relative;
  align-items: center;
  padding: 0 0.1rem;
  color: var(--color-text-soft);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.editorial-nav__link:hover,
.editorial-nav__link:focus-visible,
.editorial-nav__link--active {
  color: var(--color-primary);
}

.editorial-nav__link--active::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--color-primary);
  content: "";
}

.editorial-profile {
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  align-self: center;
  justify-self: end;
  margin-right: clamp(1.25rem, 4vw, 4rem);
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-primary-dark);
  font-family: Inter, ui-sans-serif, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-danger-soft);
  transition: background-color 0.2s ease;
}

.editorial-profile:hover {
  background: var(--color-surface-hover);
}

/* Layout de contenidos de página */
.page-content {
  width: min(100%, 92rem);
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2.5rem);
}

.page-header,
.section-heading,
.card__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.page-header {
  margin-bottom: 2rem;
}

.section-heading {
  margin-bottom: 1rem;
}

/* Componentes */
.btn {
  display: inline-flex;
  min-height: 2.6rem;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-primary-dark);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  line-height: 1;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
a:focus-visible {
  outline: 3px solid rgb(166 52 32 / 0.35);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: none;
}

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

.btn--secondary {
  border-color: var(--color-border);
  background: transparent;
  color: var(--color-text);
}

.btn--secondary:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface-hover);
}

.btn--danger {
  background: var(--color-danger);
  border-color: var(--color-primary-dark);
  color: #fff;
}

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

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: none;
}

.card--padded {
  padding: 1.25rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.metric-card {
  padding: 1.25rem;
}

.metric-card__icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1.1rem;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-danger-soft);
  color: var(--color-primary);
  font-size: 1.2rem;
}

.metric-card:nth-child(2) .metric-card__icon {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.metric-card:nth-child(3) .metric-card__icon {
  background: var(--color-info-soft);
  color: var(--color-info);
}

.metric-card:nth-child(4) .metric-card__icon {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.metric-card__label {
  margin-bottom: 0.15rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.metric-card__value {
  margin: 0;
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.metric-card__detail {
  margin: 0.35rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.table-responsive {
  max-width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  min-width: 39rem;
  border-collapse: collapse;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
  vertical-align: middle;
}

.data-table th {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background: var(--color-surface-hover);
}

.task-name {
  display: block;
  font-weight: 700;
}

.task-project,
.table-date {
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid currentcolor;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 750;
  line-height: 1;
  white-space: nowrap;
}

.badge--pending {
  background: var(--color-neutral-soft);
  color: var(--color-neutral);
}

.badge--progress {
  background: var(--color-info-soft);
  color: var(--color-info);
}

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

.priority {
  font-size: 0.8125rem;
  font-weight: 750;
  white-space: nowrap;
}

.priority--low {
  color: var(--color-success);
}

.priority--medium {
  color: var(--color-warning);
}

.priority--high {
  color: var(--color-danger);
}

.avatar {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background: var(--color-danger-soft);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 800;
}

.avatar--small {
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.6875rem;
}

.avatar--large {
  width: 4rem;
  height: 4rem;
  font-size: 1.35rem;
}

.assignee {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

/* Formularios reutilizables */
.form-group {
  display: grid;
  gap: 0.4rem;
}

.form-label {
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 700;
}

.form-control {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  outline: none;
  background: var(--color-surface);
  color: var(--color-text);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: 2px solid rgb(166 52 32 / 0.2);
  outline-offset: 1px;
}

.form-help {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.form-full {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.form-actions .btn {
  min-width: 7.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.detail-list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.detail-list li:last-child {
  border-bottom: 0;
}

.profile-card-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.quick-stat {
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.quick-stat__label {
  margin: 0 0 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.quick-stat__value {
  margin: 0;
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary);
}

/* ==========================================================================
   Modales (HTML + CSS puro con :target)
   ========================================================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  padding: 1.5rem;
  overflow-y: auto;
  align-items: center;
  justify-content: center;
}

.modal:target {
  display: flex;
}

.modal__backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(36, 32, 28, 0.65);
  backdrop-filter: blur(2px);
  z-index: -1;
}

.modal__dialog {
  position: relative;
  width: min(100%, 38rem);
  max-height: 90vh;
  overflow-y: auto;
  margin: auto;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  z-index: 1;
}

.modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

.modal__header h2 {
  margin: 0;
}

.modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: 1.75rem;
  font-weight: 300;
  line-height: 1;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.modal__close:hover {
  color: var(--color-primary);
  background: var(--color-surface-hover);
}

.site-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

/* ==========================================================================
   Autenticación (login.html / registro.html)
   ========================================================================== */
.auth-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(20rem, 28rem) minmax(0, 1fr);
}

.auth-aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 3rem;
  padding: clamp(2rem, 4vw, 3.5rem);
  background: var(--color-sidebar);
  color: #fff;
}

.auth-aside .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0;
  margin-bottom: 1.75rem;
  font-size: 1.125rem;
  font-weight: 800;
}

.brand__mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid var(--color-primary-dark);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
}

.auth-aside__eyebrow {
  color: var(--color-sidebar-muted);
}

.auth-aside__headline {
  max-width: 24ch;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: #fff;
}

.auth-aside__meta {
  padding-top: 1.5rem;
  border-top: 1px solid rgb(255 255 255 / 0.15);
}

.auth-aside__meta p:last-child {
  color: rgb(255 255 255 / 0.82);
  font-size: 0.9375rem;
}

.auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--color-background);
}

.auth-main__inner {
  width: 100%;
  max-width: 26rem;
}

.auth-card {
  width: 100%;
  padding: clamp(1.75rem, 3vw, 2.5rem);
}

.auth-card__header {
  display: block;
  margin-bottom: 1.75rem;
}

.auth-card__lead {
  margin-top: 0.5rem;
}

.auth-form {
  display: grid;
  gap: 1.15rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.auth-row-between {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: -0.25rem;
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-soft);
  font-size: 0.875rem;
  font-weight: 600;
}

.checkbox-row input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-primary);
}

.link-accent {
  border-bottom: 1px solid transparent;
  color: var(--color-primary-dark);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: 0.8125rem;
  font-weight: 700;
  transition: border-color 0.2s ease;
}

.link-accent:hover,
.link-accent:focus-visible {
  border-color: var(--color-primary-dark);
}

.auth-form__actions {
  margin-top: 0.25rem;
}

.auth-form__actions .btn {
  width: 100%;
}

.auth-card__foot {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-align: center;
}

.auth-footnote {
  margin-top: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-align: center;
}

/* ==========================================================================
   Filtros de Tareas
   ========================================================================== */
#filtros-tareas {
  margin-bottom: 1.5rem;
}

.filter-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  align-items: end;
  margin-top: 1rem;
}

.filter-bar select,
.filter-bar input[type="search"] {
  width: 100%;
}

.filter-bar__actions {
  display: flex;
  grid-column: 1 / -1;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}