/* ── RESPONSIVE BREAKPOINTS ── */

/* Desktop: 1280+ (default - no changes needed) */
@media (min-width: 1280px) {
  :root {
    --nav-width: 44px;
    --topbar-height: 48px;
    --content-padding: 28px;
    --font-size-base: 15px;
  }
}

/* Tablet: 768-1279px */
@media (min-width: 768px) and (max-width: 1279px) {
  :root {
    --nav-width: 44px;
    --topbar-height: 48px;
    --content-padding: 20px;
    --font-size-base: 14px;
  }
  
  .main {
    margin-left: var(--nav-width);
  }
}

/* Phone: 375-767px */
@media (max-width: 767px) {
  :root {
    --nav-width: 0px;
    --topbar-height: 56px;
    --content-padding: 16px;
    --font-size-base: 14px;
  }
  
  /* Hide desktop nav */
  .nav {
    display: none !important;
  }
  
  /* Show hamburger */
  .hamburger {
    display: flex !important;
  }
  
  /* Topbar adjustments */
  .topbar {
    padding: 14px var(--content-padding);
    height: var(--topbar-height);
  }
  
  /* Main content */
  .main {
    margin-left: 0;
    padding-bottom: 60px;
  }
  
  /* Tables → horizontal scroll */
  .slot-table,
  .template-grid,
  .raid-table,
  .builds-grid {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .slot-role { min-width: 150px; }
  .slot-nick { min-width: 120px; }
  .slot-build { min-width: 100px; }
  
  /* Modals → centered popup */
  .modal-overlay {
    padding: 20px;
    align-items: center;
  }
  
  .modal {
    width: 100%;
    max-width: 100%;
    max-height: 80vh;
    border-radius: 12px;
  }
  
  /* Buttons → larger touch targets */
  .btn {
    min-height: 44px;
    padding: 10px 16px;
  }
  
  /* Inputs → larger touch targets */
  .search-input,
  .modal-input,
  .rh-input {
    min-height: 44px;
    font-size: 16px;
  }
  
  /* Filter rows → wrap */
  .filter-row {
    flex-wrap: wrap;
  }
  
  /* Build grid → stack on phone */
  .build-layout {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .slot {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
  }
  
  .slot-icon-bg {
    width: 100%;
    height: 100%;
  }
}

/* ── HAMBURGER MENU ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  gap: 5px;
  flex-shrink: 0;
}

.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 60px 20px 20px;
  overflow-y: auto;
}

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

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-overlay.open {
  display: block;
  opacity: 1;
}

/* Touch active state */
.touch-active {
  opacity: 0.7;
  transform: scale(0.98);
}

@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }
  
  .mobile-nav {
    display: block;
  }
}