/**
 * MMS V2 Overlay Modal Architecture
 * Floating popout overlay with backdrop and close controls for details views
 */

/* Strict Background Scroll Lock (prevents html and body from scrolling behind overlay) */
html.v2-overlay-open,
body.v2-overlay-open {
  overflow: hidden !important;
  height: 100% !important;
  overscroll-behavior: none !important;
}

/* Backdrop overlay - Non-dimming transparent scrim (Zero brightness reduction per user specification) */
.v2-overlay-backdrop {
  position: fixed;
  inset: 0;
  background: transparent; /* Crystal clear, zero screen brightness reduction */
  z-index: 900;
  pointer-events: auto;
  cursor: default;
}

/* Container centering the floating modal */
.v2-overlay-container {
  position: fixed;
  inset: 0;
  z-index: 950;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
  overflow: hidden; /* Do not double-scroll the container; only .v2-overlay-body scrolls */
  pointer-events: none; /* Let backdrop handle clicks outside modal */
  overscroll-behavior: contain;
}

/* Modal Host Wrapper inside container */
.v2-overlay-host {
  position: relative;
  z-index: 960;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  max-height: 100%;
  pointer-events: none;
}

@media (max-width: 640px) {
  .v2-overlay-container {
    padding: 12px;
    align-items: flex-end;
  }
}

/* Floating Modal Box - Razor sharp edges, crisp popout elevation shadow */
.v2-overlay-modal {
  position: relative;
  z-index: 970;
  pointer-events: auto;
  background: #FFFFFF;
  border-radius: 16px;
  border: 1.5px solid #CBD5E1;
  box-shadow: 0 24px 64px -12px rgba(15, 23, 42, 0.28), 0 8px 24px -4px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.05);
  width: 100%;
  max-width: 960px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: contain;
  transform: translateZ(0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  animation: v2OverlayPopIn 0.18s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.v2-overlay-modal-md {
  max-width: 640px;
}

.v2-overlay-modal-lg {
  max-width: 1120px;
}

.v2-overlay-modal-xl {
  max-width: 1320px;
}

/* Modal Loading State - Crisp solid background, no blur */
.v2-overlay-modal-loading {
  background: #FFFFFF;
  border: 1px solid var(--mms-border);
}

.v2-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #E2E8F0;
  border-top-color: var(--color-brand, #0057b8);
  border-radius: 50%;
  animation: v2SpinnerRotate 0.7s linear infinite;
}

@keyframes v2SpinnerRotate {
  to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
  .v2-overlay-modal {
    max-height: calc(100vh - 24px);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }
}

/* Header */
.v2-overlay-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--mms-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #FFFFFF;
  flex-shrink: 0;
}

.v2-overlay-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex-wrap: wrap;
}

.v2-overlay-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--mms-obsidian);
  margin: 0;
  font-family: var(--mms-font-sans);
  letter-spacing: var(--mms-tracking-tight);
}

.v2-overlay-subtitle {
  font-size: 13px;
  color: var(--mms-obsidian-muted);
  font-family: var(--mms-font-sans);
}

/* Cross / Close button */
.v2-overlay-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--mms-border);
  background: #FFFFFF;
  color: var(--mms-obsidian-subtle);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  flex-shrink: 0;
  outline: none;
  padding: 0;
}

.v2-overlay-close-btn:hover {
  background: #F1F5F9;
  color: var(--mms-obsidian);
  border-color: #CBD5E1;
  transform: scale(1.05);
}

.v2-overlay-close-btn:active {
  transform: scale(0.95);
}

.v2-overlay-close-btn:focus-visible {
  box-shadow: 0 0 0 2px #FFFFFF, 0 0 0 4px var(--color-focus, #0057b8);
}

/* Body - Dedicated scrollable area */
.v2-overlay-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0; /* Ensures flexbox properly bounds height and permits scrolling */
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: #FFFFFF;
  overscroll-behavior: contain; /* Prevents scroll chaining to parent document */
  -webkit-overflow-scrolling: touch;
  pointer-events: auto;
}

/* Prevent child cards and tables from being crushed/shrunk by flexbox */
.v2-overlay-body > * {
  flex-shrink: 0;
  width: 100%;
}

.v2-overlay-body::-webkit-scrollbar {
  width: 6px;
}

.v2-overlay-body::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 3px;
}

/* Footer */
.v2-overlay-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--mms-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #F8FAFC;
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* Animations - Pure pixel-aligned translation, zero subpixel text fuzz */
@keyframes v2FadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes v2OverlayPopIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}