/**
 * webfe Design System
 * Layout: navbar, containers, grid, sidebar
 * Version 1.0
 */

/* ==================== CONTAINER ==================== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* ==================== MAIN CONTENT ==================== */
main {
  padding: 1.5rem;
  min-height: 100vh;
}

@media (min-width: 768px) {
  main {
    padding: 2rem;
  }
}

/* ==================== NAVBAR ==================== */
.navbar {
  background: #1a1a2e;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid #0a0a12;
  position: sticky;
  top: 0;
  z-index: 500;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-left: auto;
  list-style: none;
  padding: 0;
  margin: 0;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  color: #fff;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: all 200ms ease;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.navbar-link:hover {
  background: rgba(255, 255, 255, 0.1);
}

.navbar-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.navbar-link.active {
  background: rgba(0, 102, 204, 0.3);
  border-bottom: 2px solid #fa8c00;
  padding-bottom: calc(0.5rem - 2px);
}

/* NAVBAR USER SECTION */
.navbar-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
}

.navbar-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: #d3d3d3;
  object-fit: cover;
}

/* NAVBAR TOGGLE (hamburger) */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  margin-left: auto;
  min-width: 44px;
  min-height: 44px;
}

.navbar-toggle:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* MOBILE NAVBAR */
@media (max-width: 576px) {
  .navbar {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
  }

  .navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .navbar-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    margin-left: 0;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    order: 2;
  }

  .navbar-nav.show {
    display: flex;
  }

  .navbar-link {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0;
  }
}

/* ==================== SIDEBAR ==================== */
.sidebar {
  background: #f5f5f5;
  border-right: 1px solid #d3d3d3;
  padding: 1.5rem 0;
  position: fixed;
  left: 0;
  top: 0;
  width: 250px;
  height: 100vh;
  overflow-y: auto;
  z-index: 400;
}

.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-item {
  border-bottom: 1px solid #d3d3d3;
}

.sidebar-link {
  display: block;
  padding: 0.75rem 1rem;
  color: #4a4a4a;
  text-decoration: none;
  transition: all 200ms ease;
  border-left: 3px solid transparent;
}

.sidebar-link:hover {
  background: #e8e8e8;
  border-left-color: #fa8c00;
}

.sidebar-link.active {
  background: #e8f4fd;
  border-left-color: #fa8c00;
  color: #fa8c00;
  font-weight: 600;
}

.sidebar-link:focus-visible {
  outline: 2px solid #fa8c00;
  outline-offset: -2px;
}

/* MOBILE SIDEBAR */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 300ms ease;
    width: 100%;
  }

  .sidebar.show {
    transform: translateX(0);
  }

  body.sidebar-open {
    overflow: hidden;
  }
}

/* ==================== BREADCRUMBS ==================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  padding: 1rem 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item a {
  color: #fa8c00;
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: #757575;
  font-weight: 600;
}

.breadcrumb-item::after {
  content: "/";
  margin: 0 0.5rem;
  color: #d3d3d3;
}

.breadcrumb-item:last-child::after {
  content: "";
  margin: 0;
}

/* ==================== PAGINATION ==================== */
.pagination {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  justify-content: center;
  flex-wrap: wrap;
}

.pagination-item {
  display: flex;
  align-items: center;
}

.pagination-link {
  padding: 0.5rem 0.75rem;
  border: 1px solid #d3d3d3;
  border-radius: 4px;
  color: #fa8c00;
  text-decoration: none;
  transition: all 200ms ease;
  min-width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagination-link:hover:not(.disabled) {
  background: #f5f5f5;
}

.pagination-link:focus-visible {
  outline: 2px solid #fa8c00;
  outline-offset: 2px;
}

.pagination-item.active .pagination-link {
  background: #fa8c00;
  color: #fff;
  border-color: #fa8c00;
  cursor: default;
}

.pagination-item.disabled .pagination-link {
  color: #757575;
  cursor: not-allowed;
  opacity: 0.5;
}

/* ==================== GRID SYSTEM ==================== */
.row {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-12 { grid-column: span 12; }

@media (max-width: 768px) {
  .row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .col-2,
  .col-3,
  .col-4,
  .col-6 {
    grid-column: span 1;
  }
}

/* ==================== FOOTER ==================== */
footer {
  background: #f5f5f5;
  border-top: 1px solid #d3d3d3;
  padding: 2rem 1.5rem;
  margin-top: 3rem;
  text-align: center;
  font-size: 0.875rem;
  color: #757575;
}

footer p {
  margin: 0 0 0.5rem 0;
}

footer a {
  color: #fa8c00;
}

/* ==================== DISPLAY UTILITIES ==================== */
.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-inline {
  display: inline;
}

.d-inline-block {
  display: inline-block;
}

.d-flex {
  display: flex;
}

.d-grid {
  display: grid;
}

.flex-row {
  flex-direction: row;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-0 { gap: 0; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

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

.align-items-start {
  align-items: flex-start;
}

.align-items-end {
  align-items: flex-end;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

.justify-content-end {
  justify-content: flex-end;
}

/* VISIBILITY */
@media (max-width: 576px) {
  .d-sm-none {
    display: none;
  }
}

@media (min-width: 576px) and (max-width: 768px) {
  .d-md-none {
    display: none;
  }
}

@media (min-width: 768px) {
  .d-lg-block {
    display: block;
  }
}