/* ==========================================================================
   Papo de Sysadmin — Eventos 2026
   Design responsivo e acessível (WCAG 2.1 AA)
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #0d0d0d;
  --color-primary-light: #1a1a1a;
  --color-accent: #4CAF50;
  --color-accent-hover: #388E3C;
  --color-background: #f0f0f0;
  --color-card: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a5a;
  --color-border: #e0e0e0;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --font-size-body: 16px;
  --font-size-secondary: 14px;
  --font-size-small: 14px;
  --radius-card: 8px;
  --radius-badge: 4px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --touch-target: 44px;
}

/* --------------------------------------------------------------------------
   Base / Reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-body);
  overflow-x: hidden;
}

body {
  padding-top: 70px;
  padding-bottom: 0;
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: var(--font-size-body);
  line-height: 1.5;
  overflow-x: hidden;
  max-width: 100vw;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 700;
}

h2 {
  font-size: 1.5rem;
  margin-top: 0;
  font-weight: bold;
}

p, li, span, label, a {
  font-size: var(--font-size-body);
}

small, .text-secondary, .text-muted {
  font-size: var(--font-size-secondary);
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Navbar / Header
   -------------------------------------------------------------------------- */
.navbar {
  background-color: var(--color-primary) !important;
  padding: 0.5rem 1rem;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.navbar-brand {
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 70vw;
  padding: 0;
}

.navbar-brand img {
  filter: invert(1);
  height: 45px;
  max-height: 45px;
  object-fit: contain;
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--color-accent) !important;
}

.navbar-dark .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.3);
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-dark .navbar-toggler:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.navbar-nav .nav-link {
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  transition: opacity var(--transition-fast);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  opacity: 0.8;
}

.navbar-nav .nav-link img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

/* --------------------------------------------------------------------------
   Layout / Main Content
   -------------------------------------------------------------------------- */
.container-fluid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

#notice {
  font-size: var(--font-size-body);
}

/* --------------------------------------------------------------------------
   Sidebar / Filters
   -------------------------------------------------------------------------- */
aside .card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 1px 4px var(--color-shadow);
  background-color: var(--color-card);
}

aside .card-header {
  background-color: var(--color-primary);
  border-bottom: none;
  padding: 0.75rem 1rem;
}

aside .card-header .title {
  color: #ffffff;
  margin: 0;
  font-size: var(--font-size-body);
  font-weight: 600;
}

aside .filter-content {
  padding: 0.75rem 1rem;
}

/* Category list in sidebar */
#category-list .list-group-item {
  border: none;
  padding: 0.5rem 1rem;
  font-size: var(--font-size-body);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
}

#category-list .list-group-item:hover,
#category-list .list-group-item:focus,
#category-list .list-group-item.active {
  background-color: rgba(13, 13, 13, 0.05);
  text-decoration: none;
}

#category-list .list-group-item.active {
  font-weight: 600;
  border-left: 3px solid var(--color-accent);
}

#category-list a span {
  color: #ffffff;
}

/* Presence filter checkbox */
.custom-control-label {
  font-size: var(--font-size-body);
  cursor: pointer;
  padding-top: 2px;
}

.custom-control-input:checked ~ .custom-control-label::before {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.custom-control-input:focus ~ .custom-control-label::before {
  box-shadow: 0 0 0 0.2rem rgba(255, 107, 0, 0.25);
}

/* --------------------------------------------------------------------------
   Month Filter / Select
   -------------------------------------------------------------------------- */
#month-filter .custom-select,
.custom-select {
  font-size: var(--font-size-body);
  min-height: var(--touch-target);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-badge);
  color: var(--color-text);
  background-color: var(--color-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.custom-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.2rem rgba(255, 107, 0, 0.25);
}

/* Results counter */
#results-counter {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  font-weight: 500;
}

#results-counter span {
  font-size: var(--font-size-body);
}

/* --------------------------------------------------------------------------
   Filter Toggle Button (Mobile)
   -------------------------------------------------------------------------- */
.btn-outline-dark {
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  font-size: var(--font-size-body);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.btn-outline-dark:hover,
.btn-outline-dark:focus {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 0 0 0.2rem rgba(13, 13, 13, 0.25);
}

/* --------------------------------------------------------------------------
   Event List
   -------------------------------------------------------------------------- */
.event-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.event-list > li {
  background-color: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 0;
  margin: 0 0 1rem;
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.event-list > li:hover {
  box-shadow: 0 4px 16px rgba(13, 13, 13, 0.15);
  transform: translateY(-1px);
}

/* Event date block */
.event-list > li > time {
  display: block;
  width: 100%;
  color: #ffffff;
  padding: 0.75rem 0.5rem;
  text-align: center;
  text-transform: uppercase;
  background-color: var(--color-primary);
}

.event-list > li > time > .day {
  display: block;
  font-size: 2.5rem;
  font-weight: 100;
  line-height: 1;
}

.event-list > li > time > .month {
  display: block;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.2;
}

/* Event image */
.event-list > li > img {
  width: 100%;
  height: auto;
  display: block;
}

/* Event info section */
.event-list > li > .info {
  padding: 0.75rem 1rem;
  text-align: center;
}

.event-list > li > .info > .title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  color: var(--color-text);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.event-list > li > .info > .desc {
  font-size: var(--font-size-body);
  font-weight: 400;
  margin: 0 0 0.5rem;
  color: var(--color-text-secondary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Event info row (location, etc.) */
.event-list .info .row {
  padding-left: 0.5rem;
  font-size: var(--font-size-secondary);
  color: var(--color-text-secondary);
}

/* Event info action list */
.event-list > li > .info > ul,
.event-list > li > .social > ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  width: 100%;
  text-align: center;
  justify-content: center;
}

.event-list > li > .social > ul {
  margin: 0;
}

.event-list > li > .info > ul > li,
.event-list > li > .social > ul > li {
  flex: 1;
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-secondary);
  font-weight: 400;
  padding: 0.25rem 0;
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.event-list > li > .info > ul > li > a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--touch-target);
  color: var(--color-text);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
}

.event-list > li > .social > ul > li {
  padding: 0;
}

.event-list > li > .social > ul > li > a {
  padding: 0.25rem 0;
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
}

.event-list > li > .info > ul > li:hover,
.event-list > li > .social > ul > li:hover {
  background-color: rgba(13, 13, 13, 0.05);
}

/* Social link colors */
.facebook a,
.twitter a,
.google-plus a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  color: #4b6ea8 !important;
}

.twitter a {
  color: #1da1f2 !important;
}

.google-plus a {
  color: #dd4b39 !important;
}

.facebook:hover a {
  color: #ffffff !important;
  background-color: #4b6ea8 !important;
}

.twitter:hover a {
  color: #ffffff !important;
  background-color: #1da1f2 !important;
}

.google-plus:hover a {
  color: #ffffff !important;
  background-color: #dd4b39 !important;
}

/* Event links section */
.event-list > li .links {
  background-color: rgba(13, 13, 13, 0.03);
  border-top: 1px solid var(--color-border);
}

.event-list > li .links a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.event-list > li .links a:hover,
.event-list > li .links a:focus {
  color: var(--color-accent);
  background-color: rgba(255, 107, 0, 0.05);
}

/* Event category tag */
.event-list > li .category {
  background-color: #ccc;
  padding: 0.15rem 0.6rem;
  color: var(--color-primary);
  font-size: var(--font-size-small);
  font-weight: 600;
  border-radius: var(--radius-badge);
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Badge de Presença
   -------------------------------------------------------------------------- */
.badge-presenca {
  display: inline-block;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: var(--font-size-small);
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-badge);
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: capitalize;
  letter-spacing: 0.02em;
}

/* Presence counter badge in sidebar */
.badge-info {
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: var(--font-size-small);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Flag icon
   -------------------------------------------------------------------------- */
.flag {
  width: 50px;
  height: auto;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  margin-top: 2rem;
  padding: 1.5rem 1rem;
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-secondary);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.footer a {
  color: var(--color-accent);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.footer a:hover,
.footer a:focus {
  color: var(--color-accent-hover);
}

.footer img {
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   Utility: show class override
   -------------------------------------------------------------------------- */
.show {
  display: block !important;
}

/* --------------------------------------------------------------------------
   Focus styles (Accessibility)
   -------------------------------------------------------------------------- */
a:focus,
button:focus,
input:focus,
select:focus,
[tabindex]:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Skip link (if added) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-accent);
  color: #ffffff;
  padding: 0.5rem 1rem;
  z-index: 10000;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* --------------------------------------------------------------------------
   Responsive: Mobile First (< 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 767.98px) {
  body {
    padding-top: 60px;
  }

  .navbar-brand {
    font-size: 0.95rem;
    max-width: 60vw;
  }

  /* Single column layout */
  aside,
  #container {
    width: 100% !important;
    float: none !important;
    max-width: 100%;
    flex: 0 0 100%;
  }

  /* Touch targets for mobile */
  .event-list > li > .info > ul > li,
  .event-list > li > .social > ul > li,
  .event-list > li > .info > ul > li > a,
  .event-list > li > .social > ul > li > a,
  .event-list > li .links a,
  #category-list .list-group-item,
  .custom-control-label {
    min-height: var(--touch-target);
  }

  /* Event list mobile: stacked layout */
  .event-list > li {
    display: block;
    width: 100%;
    height: auto;
  }

  .event-list > li > time {
    display: block;
    width: 100%;
    padding: 0.75rem;
  }

  .event-list > li > .info {
    padding: 0.75rem 1rem;
    text-align: center;
  }

  .event-list > li > .social {
    width: 100%;
    position: static;
  }

  .event-list > li > .social > ul {
    display: flex;
    flex-direction: row;
    border-top: 1px solid var(--color-border);
    border-left: none;
  }

  .event-list > li > .social > ul > li {
    display: flex;
    flex: 1;
  }

  .event-list > li > .social > ul > li > a {
    width: 100%;
    min-height: var(--touch-target);
    padding: 0.5rem;
  }

  .event-list > li .category {
    position: static;
    margin: 0.5rem auto;
    display: inline-block;
  }

  .event-list > li .links {
    position: static;
    width: 100%;
    text-align: center;
  }
}

/* --------------------------------------------------------------------------
   Responsive: Tablet and Desktop (>= 768px)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  .event-list > li {
    position: relative;
    display: flex;
    flex-direction: row;
    width: 100%;
    min-height: 120px;
    height: auto;
    padding: 0;
  }

  .event-list > li > time,
  .event-list > li > img {
    display: flex;
    align-items: center;
    flex-flow: column;
    justify-content: center;
    width: 120px;
    min-width: 120px;
    min-height: 120px;
    padding: 0;
    margin: 0;
    flex-shrink: 0;
  }

  .event-list > li > .info {
    flex: 1;
    background-color: var(--color-card);
    overflow: hidden;
    position: relative;
    min-height: 120px;
    text-align: left;
    padding: 0.5rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .event-list > li > .info > .title,
  .event-list > li > .info > .desc {
    padding: 0;
  }

  .event-list > li > .info > ul {
    position: absolute;
    left: 0;
    bottom: 0;
    margin: 0;
    width: 100%;
  }

  .event-list > li > .social {
    position: absolute;
    top: 0;
    right: 0;
    display: block;
    width: 40px;
  }

  .event-list > li > .social > ul {
    border-left: 1px solid var(--color-border);
    flex-direction: column;
  }

  .event-list > li > .social > ul > li {
    display: block;
    padding: 0;
  }

  .event-list > li > .social > ul > li > a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    min-height: 40px;
    padding: 0.5rem 0;
  }

  .event-list > li .category {
    position: absolute;
    right: 0.5rem;
    top: 0.5rem;
  }

  .event-list > li .links {
    text-align: center;
    position: absolute;
    width: 100%;
    bottom: 0;
  }

  .event-list > li .links:hover {
    background-color: rgba(13, 13, 13, 0.05);
  }
}

/* --------------------------------------------------------------------------
   Responsive: Large Desktop (>= 1200px)
   -------------------------------------------------------------------------- */
@media (min-width: 1200px) {
  .container-fluid {
    max-width: 1400px;
  }
}

/* --------------------------------------------------------------------------
   Responsive: Ultra-wide (>= 2560px)
   -------------------------------------------------------------------------- */
@media (min-width: 2560px) {
  .container-fluid {
    max-width: 1800px;
  }
}

/* --------------------------------------------------------------------------
   Prevent horizontal scroll at all viewports (320px - 2560px)
   -------------------------------------------------------------------------- */
html, body {
  overflow-x: hidden;
  max-width: 100%;
}

.row {
  margin-left: 0;
  margin-right: 0;
}

/* --------------------------------------------------------------------------
   Smooth transitions for filter interactions
   -------------------------------------------------------------------------- */
.event-list > li {
  animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Collapse transition for sidebar */
.collapsing {
  transition: height var(--transition-normal);
}

/* --------------------------------------------------------------------------
   Print styles
   -------------------------------------------------------------------------- */
@media print {
  .navbar,
  aside,
  .btn-outline-dark,
  #month-filter,
  .social {
    display: none !important;
  }

  body {
    padding-top: 0;
    background: #ffffff;
  }

  .event-list > li {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
}

/* --------------------------------------------------------------------------
   Reduced motion preference
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}