/* ==========================================================================
   BASE & LAYOUT STYLES
   Checador de Globos - PWA
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(6, 182, 212, 0.06) 0%, transparent 45%);
  background-attachment: fixed;
  transition: background-color var(--trans-normal), color var(--trans-normal);
  user-select: none;
}

/* App Shell Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 680px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  padding-bottom: 90px; /* Space for bottom navigation */
}

/* Top App Bar */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow-primary);
  color: #ffffff;
}

.brand-info h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-info .badge-pill {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border-highlight);
}

.brand-info p {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.btn-icon:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.btn-icon:active {
  transform: scale(0.95);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-indicator.offline .status-dot {
  background: var(--warning);
  box-shadow: 0 0 8px var(--warning);
}

/* Main Content Views */
.main-content {
  flex: 1;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
}

.tab-view {
  display: none;
  animation: fadeIn var(--trans-normal) forwards;
}

.tab-view.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Bottom Navigation Bar */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  z-index: 100;
  max-width: 680px;
  margin: 0 auto;
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans-fast);
  flex: 1;
}

.nav-btn svg {
  width: 22px;
  height: 22px;
  transition: transform var(--trans-fast), stroke var(--trans-fast);
}

.nav-btn.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-btn.active svg {
  transform: translateY(-2px);
  filter: drop-shadow(0 2px 8px var(--primary-glow));
}

.nav-btn:hover:not(.active) {
  color: var(--text-primary);
}

.nav-btn:active {
  transform: scale(0.95);
}

/* Glass Card Component */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--trans-normal), box-shadow var(--trans-normal);
}

.glass-card:hover {
  border-color: var(--border-medium);
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-tertiary); }
.text-bold { font-weight: 700; }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-primary { color: var(--primary); }

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hide { display: none !important; }