/* LAYOUT STYLES - Responsive Grid System */

/* App Container */
.app-container {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-areas: 
    "header"
    "main";
}

/* Header Layout */
.header {
  grid-area: header;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin: var(--space-lg);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(192, 86, 33, 0.2), transparent);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  50% { left: 100%; }
  100% { left: 100%; }
}

.header-logo {
  display: flex;
  align-items: center;
  z-index: 2;
}

.expo-logo {
  height: clamp(50px, 8vw, 70px);
  width: auto;
  opacity: 0.95;
  transition: all var(--transition-normal);
  filter: drop-shadow(0 2px 8px rgba(192, 86, 33, 0.4));
}

.expo-logo:hover {
  opacity: 1;
  transform: scale(1.05);
}

.header-title {
  text-align: center;
  z-index: 2;
}

.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  z-index: 2;
}

.mishqat-logo {
  height: clamp(25px, 4vw, 30px);
  width: auto;
  opacity: 0.95;
  transition: all var(--transition-normal);
  filter: drop-shadow(0 2px 8px rgba(214, 158, 46, 0.4));
}

.mishqat-logo:hover {
  opacity: 1;
  transform: scale(1.05);
}

/* Main Content Layout */
.main-content {
  grid-area: main;
  display: grid;
  grid-template-areas: "avatar chat";
  grid-template-columns: 2fr 1fr;
  min-height: 0;
  gap: 0;
  height: calc(100vh - 120px);
}

/* Avatar Section */
.avatar-section {
  grid-area: avatar;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-xl);
  background: var(--cream-white);
  backdrop-filter: var(--glass-blur);
  border-right: 2px solid var(--accent-copper);
  overflow: visible;
}

/* Chat Section */
.chat-section {
  grid-area: chat;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  background: rgba(30, 74, 82, 0.05);
  backdrop-filter: var(--glass-blur);
  position: relative;
  overflow: hidden;
}

/* Registration Form Layout */
.registration-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.registration-overlay.show {
  opacity: 1;
  visibility: visible;
}

.registration-form {
  background: linear-gradient(135deg, rgba(30, 74, 82, 0.95) 0%, rgba(44, 105, 117, 0.95) 100%);
  backdrop-filter: var(--glass-blur);
  border: 3px solid var(--accent-copper);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 850px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.8);
  transition: all var(--transition-bounce);
}

.registration-overlay.show .registration-form {
  transform: scale(1);
}

.form-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
}

.form-header h3 {
  color: var(--accent-gold);
  margin-bottom: var(--space-sm);
  font-size: 1.4rem;
}

.form-header p {
  color: var(--cream-white);
  opacity: 0.9;
  font-size: 0.9rem;
}

.close-btn {
  position: absolute;
  top: -10px;
  right: -10px;
  background: rgba(220, 38, 38, 0.9);
  color: white;
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.close-btn:hover {
  background: rgba(220, 38, 38, 1);
  transform: scale(1.1);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

.success-message {
  background: rgba(34, 197, 94, 0.9);
  color: white;
  padding: var(--space-lg);
  border-radius: var(--radius-sm);
  margin-top: var(--space-lg);
  text-align: center;
  display: none;
}

.success-message.show {
  display: block;
}

/* Tablet Layout */
@media (max-width: 1024px) {
  .main-content {
    grid-template-areas: 
      "avatar"
      "chat";
    grid-template-columns: 1fr;
    grid-template-rows: 60vh 40vh;
  }
  
  .avatar-section {
    border-right: none;
    border-bottom: 2px solid var(--accent-copper);
    padding: var(--space-lg);
  }
  
  .chat-section {
    padding: var(--space-lg);
  }
  
  .header {
    margin: var(--space-md);
    padding: var(--space-lg);
  }
  
  .register-btn {
    left: var(--space-lg);
    bottom: var(--space-lg);
  }
}

/* Mobile Layout */
@media (max-width: 768px) {
  .header {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    text-align: center;
    gap: var(--space-md);
    margin: var(--space-sm);
    padding: var(--space-md);
  }
  
  .header-logo,
  .header-right {
    justify-content: center;
  }
  
  .main-content {
    grid-template-rows: 50vh 50vh;
    height: calc(100vh - 180px);
  }
  
  .avatar-section,
  .chat-section {
    padding: var(--space-md);
  }
  
  .form-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .registration-form {
    padding: var(--space-xl);
    width: 95%;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .register-btn {
    bottom: var(--space-md);
    
    left: var(--space-md);
    
  }
  
  .developer-credit {
    bottom: var(--space-md);
    right: var(--space-md);
    font-size: 0.7rem;
  }
}

/* Small Mobile Layout */
@media (max-width: 480px) {
  .header {
    margin: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
  }
  
  .main-content {
    height: calc(100vh - 140px);
  }
  
  .avatar-section,
  .chat-section {
    padding: var(--space-sm);
  }
  
  .registration-form {
    padding: var(--space-lg);
    width: 98%;
  }
  
  .register-btn {
    font-size: 0.8rem;
    padding: var(--space-sm) var(--space-md);
  }
}

/* Container Queries (Progressive Enhancement) */
@container (max-width: 400px) {
  .avatar-section {
    padding: var(--space-sm);
  }
}

/* Landscape Mobile */
@media (max-width: 896px) and (orientation: landscape) {
  .main-content {
    grid-template-areas: "avatar chat";
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
  }
  
  .avatar-section {
    border-right: 2px solid var(--accent-copper);
    border-bottom: none;
  }
}

/* Ultra Small Mobile - iPhone SE/S24 (375x667px) - FINAL VERSION */
@media (max-width: 400px) {
  .main-content {
    grid-template-rows: minmax(240px, 50vh) minmax(140px, 1fr);
    height: calc(100vh - 80px);
  }
  
  .header {
    margin: 2px;
    padding: 4px var(--space-sm);
    gap: 4px;
  }
  
  .header-title {
    margin-bottom: 2px;
  }
  
  .logo {
    font-size: clamp(1.2rem, 6vw, 1.5rem);
    margin-bottom: 2px;
  }
  
  .subheader {
    font-size: clamp(0.6rem, 2.5vw, 0.75rem);
  }
}