/* ==========================================================================
   HızlıYaz - Mobil & Responsive Tasarım
   Hamburger menü, slide-in overlay, touch-friendly layout
   ========================================================================== */

/* ---- Hamburger Butonu ---- */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  transition: var(--transition-normal);
  flex-shrink: 0;
}

.hamburger-btn:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--accent-primary);
}

.hamburger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobil Nav Overlay ---- */
#mobileNavOverlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s;
  overflow: hidden;
}

#mobileNavOverlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

#mobileNavDrawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100dvh;
  background: var(--bg-card);
  border-left: 1px solid rgba(255,255,255,0.08);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.35s;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  will-change: transform;
  contain: layout style;
}

#mobileNavDrawer.open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-drawer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mobile-drawer-close {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.mobile-drawer-close:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text-primary);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  padding: 1rem 0.75rem;
  gap: 0.25rem;
  flex: 1;
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  font-family: var(--font-main);
  width: 100%;
  text-align: left;
}

.mobile-nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.mobile-nav-item.active {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.mobile-nav-item .nav-icon {
  font-size: 1.25rem;
  width: 28px;
  text-align: center;
}

.mobile-nav-item .nav-label {
  flex: 1;
  font-weight: 600;
}

.mobile-drawer-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-drawer-footer .quick-actions {
  display: flex;
  gap: 0.5rem;
}

.mobile-quick-btn {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.mobile-quick-btn:hover,
.mobile-quick-btn.active {
  background: rgba(139,92,246,0.2);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ---- Swipe Gesture Indicator ---- */
.swipe-hint {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  border-radius: 99px;
  border: 1px solid rgba(255,255,255,0.08);
  display: none;
  z-index: 10;
  animation: swipeHintFade 3s ease forwards;
}

@keyframes swipeHintFade {
  0% { opacity: 0; transform: translateX(-50%) translateY(10px); }
  20% { opacity: 1; transform: translateX(-50%) translateY(0); }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* ---- Laptop & Orta Masaüstü Ekranlar (≤1380px) ---- */
@media (max-width: 1380px) {
  .app-header {
    padding: 0.6rem 1rem;
    gap: 0.5rem;
  }
  .nav-tabs {
    gap: 0.2rem;
    padding: 0.2rem 0.35rem;
  }
  .nav-tab-btn, .nav-dropdown-btn {
    padding: 0.38rem 0.58rem;
    font-size: 0.78rem;
    gap: 0.25rem;
  }
  .logo-badge {
    display: none;
  }
  .streak-pill-widget {
    padding: 0.25rem 0.55rem;
    font-size: 0.76rem;
    gap: 0.25rem;
  }
  .streak-pill-widget .xp-tag {
    display: none;
  }
  .header-actions {
    gap: 0.35rem;
  }
}

/* ---- Tablet & Küçük Ekranlar (≤1200px) ---- */
@media (max-width: 1200px) {
  /* Başlıkların sağa taşmaması ve görünmez kalmaması için hamburger menüye geç */
  .nav-tabs {
    display: none !important;
  }

  .hamburger-btn {
    display: flex !important;
  }

  #mobileNavOverlay {
    display: block;
  }

  .app-header {
    padding: 0.75rem 1.25rem;
    gap: 0.75rem;
    flex-wrap: nowrap;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .header-actions {
    gap: 0.45rem;
    margin-left: auto;
  }
}

/* ---- Mobile (≤768px) ---- */
@media (max-width: 768px) {
  /* Header mobil düzeni */
  .app-header {
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }

  .action-icon-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  /* Google login butonu */
  .google-login-btn span {
    display: none;
  }

  .google-login-btn {
    padding: 0.5rem;
    min-width: 36px;
  }

  /* Ana içerik */
  main.main-content {
    padding: 0.75rem 0.75rem 5rem 0.75rem;
  }

  /* Üst reklam bandı */
  .ad-banner-top {
    margin: 0 0.75rem;
  }

  /* Hızlı keşif şeridi */
  .quick-discover-ribbon {
    gap: 0.6rem;
    padding-bottom: 0.5rem;
  }

  .discover-card {
    min-width: 140px;
    padding: 0.75rem;
  }

  /* Test arenası metin kutusu */
  .typing-display {
    font-size: 1.15rem;
    line-height: 1.8;
  }

  /* İstatistik kartları */
  .results-main-stats {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.6rem;
  }

  /* Dövüş çubuğu */
  .race-bars-container {
    grid-template-columns: 1fr;
  }

  /* Öğretmen paneli */
  .teacher-class-grid {
    grid-template-columns: 1fr;
  }

  /* Turnuva kartları */
  .tournament-bracket {
    flex-direction: column;
  }

  /* Footer kısalt */
  .app-footer {
    display: none;
  }
}

/* ---- Küçük Mobile (≤480px) ---- */
@media (max-width: 480px) {
  .logo-badge {
    display: none;
  }

  .logo-text h1 {
    font-size: 1.1rem;
  }

  .typing-display {
    font-size: 1rem;
    line-height: 1.7;
  }

  .stat-card-value {
    font-size: 1.8rem !important;
  }

  .results-main-stats {
    grid-template-columns: 1fr 1fr !important;
  }

  /* Modal tam ekran */
  .modal-box {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    margin: 0 !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    top: auto !important;
    transform: none !important;
    max-height: 92dvh;
    overflow-y: auto;
  }

  /* Sanal klavye taşma koruması */
  .virtual-keyboard-wrapper {
    max-width: 100% !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal-overlay {
    align-items: flex-end !important;
  }
}

/* ---- Bottom Navigation Bar (Mobile) ---- */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255,255,255,0.08);
  z-index: 200;
  padding: 0.5rem 0 env(safe-area-inset-bottom, 0.5rem);
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
}

.mobile-bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.4rem 0.6rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.mobile-bottom-tab:hover,
.mobile-bottom-tab.active {
  color: var(--accent-primary);
}

.mobile-bottom-tab.active .mobile-tab-icon {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 12px;
  padding: 0.3rem 0.6rem;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.mobile-tab-icon {
  font-size: 1.3rem;
  transition: var(--transition-normal);
}

.mobile-tab-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* ---- Touch Interaction Improvements ---- */
@media (hover: none) and (pointer: coarse) {
  /* Butonlar daha büyük touch hedefi */
  .btn, .nav-tab-btn, .mode-btn, .sub-option-btn {
    min-height: 44px;
  }

  /* Hover efektleri touch'ta çalışmaz, active kullan */
  .btn:active {
    transform: scale(0.96);
    transition: transform 0.1s ease;
  }

  /* Input alanları */
  .typing-input {
    font-size: 16px !important; /* iOS zoom engellemek için */
  }
}

/* ---- Landscape Mobile ---- */
@media (max-width: 900px) and (orientation: landscape) {
  .app-header {
    padding: 0.5rem 1rem;
  }

  .virtual-keyboard-row {
    gap: 3px;
  }

  #virtualKeyboardContainer {
    transform: scale(0.85);
    transform-origin: top center;
    margin-bottom: -2rem;
  }
}

/* ---- Safe Area (iPhone Notch/Island) ---- */
@supports (padding: env(safe-area-inset-top)) {
  .app-header {
    padding-top: max(0.75rem, env(safe-area-inset-top));
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }
}