/**
 * MatchingSports - Responsive Styles
 *
 * Mobile-first responsive CSS.
 * Breakpoints:
 *   Mobile base : < 768px  (default, no media query)
 *   Tablet      : @media (min-width: 768px)
 *   Desktop     : @media (min-width: 1024px)
 *
 * Relies on CSS custom properties defined in theme.css.
 */

/* ============================================================
   1. GRID SYSTEM
   ============================================================ */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

/* ============================================================
   2. LAYOUT
   ============================================================ */
.layout-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.layout-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
}

.layout-content {
  flex: 1;
  padding: var(--spacing-md);
  min-width: 0;
  overflow-x: hidden;
}

/* ============================================================
   3. HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--spacing-md);
  background-color: var(--secondary-color);
  color: var(--accent-color);
  box-shadow: var(--shadow-md);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--accent-color);
  text-decoration: none;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.site-header__logo img {
  height: 36px;
  width: auto;
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: var(--tap-target-min);
  height: var(--tap-target-min);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--accent-color);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger[aria-expanded="true"] .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger[aria-expanded="true"] .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Header actions — hidden on mobile */
.site-header__actions {
  display: none;
}

/* ============================================================
   4. NAVIGATION — Mobile drawer
   ============================================================ */
.site-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  background-color: var(--secondary-color);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  z-index: 99;
  box-shadow: var(--shadow-lg);
}

.site-nav.is-open {
  transform: translateX(0);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 98;
}

.nav-overlay.is-visible {
  display: block;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: var(--spacing-sm) 0;
}

.site-nav__item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav__link {
  display: flex;
  align-items: center;
  min-height: var(--tap-target-min);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--accent-color);
  text-decoration: none;
  font-size: var(--font-size-base);
  transition: background-color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link:focus,
.site-nav__link.is-active {
  background-color: var(--primary-color);
  color: var(--accent-color);
  text-decoration: none;
}

/* Nav group labels */
.site-nav__group-label {
  display: block;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
}

.site-nav__sub-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__sub-list .site-nav__link {
  padding-left: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  margin: 0 0 var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ============================================================
   5. SIDEBAR — hidden on mobile
   ============================================================ */
.sidebar {
  display: none;
}

/* ============================================================
   6. CONTENT
   ============================================================ */
.content-section {
  padding: var(--spacing-md) 0;
}

.content-section + .content-section {
  border-top: var(--border-width) solid var(--border-color);
}

.card {
  background-color: var(--background-color);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.card + .card {
  margin-top: var(--spacing-md);
}

/* ============================================================
   7. FORMS
   ============================================================ */
.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.form-actions .btn {
  width: 100%;
  justify-content: center;
}

/* ============================================================
   8. TABLES — horizontal scroll on mobile
   ============================================================ */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
}

.table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table th,
.table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: var(--border-width) solid var(--border-color);
  white-space: nowrap;
}

.table th {
  background-color: var(--light-color);
  font-weight: var(--font-weight-semibold);
  color: var(--text-color);
}

.table tbody tr:hover {
  background-color: rgba(198, 12, 48, 0.04);
}

/* ============================================================
   9. IMAGES
   ============================================================ */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

.img-fluid { max-width: 100%; height: auto; }
.img-cover { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   10. TYPOGRAPHY SCALING
   ============================================================ */
.display-title {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
}

.section-title {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.lead { font-size: var(--font-size-lg); line-height: 1.6; }
.small { font-size: var(--font-size-sm); }

/* ============================================================
   11. ADMIN LAYOUT — Mobile
   ============================================================ */
.admin-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-sidebar {
  width: 100%;
  position: relative;
  overflow-x: auto;
}

.admin-sidebar .sidebar-header {
  padding: 0.75rem 1rem;
}

.admin-sidebar .sidebar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding: 0;
}

.admin-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  white-space: nowrap;
  min-height: var(--tap-target-min);
  transition: background-color var(--transition-fast);
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
  background-color: var(--primary-color);
  color: #fff;
}

.admin-main {
  width: 100%;
  flex: 1;
}

.admin-content {
  padding: 1rem;
}

.admin-topbar .container-fluid {
  padding: 0.75rem 1rem;
}

.admin-topbar h4 {
  font-size: 1.1rem;
}

/* ============================================================
   12. TOUCH-FRIENDLY TAP TARGETS
   ============================================================ */
button, a, input[type="submit"], input[type="button"],
input[type="reset"], select, .btn, .nav-link, .page-link {
  min-height: 44px;
  min-width: 44px;
}

input[type="checkbox"], input[type="radio"] {
  min-height: 20px;
  min-width: 20px;
}

/* ============================================================
   13. RESPONSIVE IMAGES
   ============================================================ */
.img-responsive { max-width: 100%; height: auto; display: block; }
picture img { max-width: 100%; height: auto; }
img[loading="lazy"] { background-color: var(--light-color, #f0f0f0); }

/* ============================================================
   SKIP TO MAIN CONTENT
   ============================================================ */
.skip-to-main {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  z-index: 9999;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--primary-color);
  color: var(--accent-color);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: top var(--transition-fast);
}

.skip-to-main:focus { top: var(--spacing-sm); }

/* Spinner overlay */
.spinner-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner-overlay-content { text-align: center; }
.spinner-container { padding: 2rem; }


/* ============================================================
   TABLET BREAKPOINT (min-width: 768px)
   ============================================================ */
@media (min-width: 768px) {

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

  /* Layout */
  .layout-main { flex-direction: row; }
  .layout-content { padding: var(--spacing-lg); }

  /* Header */
  .site-header { padding: 0 var(--spacing-lg); }
  .site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
  }

  /* Nav drawer wider */
  .site-nav { width: 300px; }

  /* Content */
  .content-section { padding: var(--spacing-lg) 0; }
  .card { padding: var(--spacing-lg); }

  /* Forms — two columns */
  .form-row { grid-template-columns: repeat(2, 1fr); }
  .form-actions {
    flex-direction: row;
    justify-content: flex-end;
  }
  .form-actions .btn { width: auto; }

  /* Tables */
  .table { min-width: unset; font-size: var(--font-size-base); }
  .table th, .table td { white-space: normal; }

  /* Typography */
  .display-title { font-size: 2.25rem; }
  .section-title { font-size: 1.5rem; }

  /* Admin layout — sidebar on left */
  .admin-container { flex-direction: row; }
  .admin-sidebar {
    width: 220px;
    min-height: 100vh;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    overflow-y: auto;
    max-height: 100vh;
  }
  .admin-sidebar .sidebar-nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .admin-sidebar .nav-link {
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
  }
  .admin-main { flex: 1; min-width: 0; }
  .admin-content { padding: 1.5rem; }
  .admin-topbar h4 { font-size: 1.25rem; }
}

/* ============================================================
   DESKTOP BREAKPOINT (min-width: 1024px)
   ============================================================ */
@media (min-width: 1024px) {

  /* Grid */
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }

  /* Layout */
  .layout-content { padding: var(--spacing-xl); }

  /* Header */
  .site-header { padding: 0 var(--spacing-xl); }

  /* Hamburger hidden */
  .hamburger { display: none; }

  /* Navigation — horizontal bar */
  .site-nav {
    position: static;
    width: auto;
    max-width: none;
    transform: none;
    overflow: visible;
    box-shadow: none;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
  }

  .site-nav__list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
    min-height: var(--header-height);
    align-items: stretch;
  }

  .site-nav__item {
    border-bottom: none;
    position: relative;
  }

  /* Group items become dropdowns on desktop */
  .site-nav__item--group {
    position: relative;
  }

  .site-nav__item--group .site-nav__group-label {
    display: flex;
    align-items: center;
    min-height: var(--header-height);
    padding: 0 var(--spacing-md);
    color: rgba(255,255,255,0.8);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: color var(--transition-fast);
  }

  .site-nav__item--group:hover .site-nav__group-label {
    color: var(--accent-color);
  }

  .site-nav__item--group .site-nav__sub-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--secondary-color);
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    z-index: 150;
    padding: var(--spacing-xs) 0;
  }

  .site-nav__item--group:hover .site-nav__sub-list {
    display: block;
  }

  .site-nav__sub-list .site-nav__link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 40px;
  }

  .site-nav__link {
    height: 100%;
    padding: 0 var(--spacing-md);
    border-bottom: 3px solid transparent;
  }

  .site-nav__link:hover,
  .site-nav__link:focus,
  .site-nav__link.is-active {
    background-color: transparent;
    border-bottom-color: var(--primary-color);
  }

  .site-nav__sub-list .site-nav__link:hover,
  .site-nav__sub-list .site-nav__link.is-active {
    background-color: var(--primary-color);
    border-bottom-color: transparent;
  }

  .nav-overlay { display: none !important; }

  /* Sidebar */
  .sidebar {
    display: block;
    width: var(--sidebar-width);
    flex-shrink: 0;
    padding: var(--spacing-xl) var(--spacing-md);
    border-right: var(--border-width) solid var(--border-color);
    background-color: var(--light-color);
  }

  .layout-with-sidebar .layout-content {
    flex: 1;
    min-width: 0;
  }

  /* Content */
  .content-section { padding: var(--spacing-xl) 0; }

  /* Forms */
  .form-row-3 { grid-template-columns: repeat(3, 1fr); }

  /* Typography */
  .display-title { font-size: 2.75rem; }
  .section-title { font-size: 1.75rem; }

  /* Admin layout */
  .admin-sidebar { width: 250px; }
  .admin-sidebar .nav-link {
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
  }
  .admin-content { padding: 2rem; }
}

/* ============================================================
   LARGE DESKTOP (min-width: 1280px)
   ============================================================ */
@media (min-width: 1280px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .admin-content { padding: 2rem 2.5rem; }
}