/* ════════════════════════════════════════════════════════
   Glass Component System
   Glassmorphism primitives used across dashboard views.
   ════════════════════════════════════════════════════════ */

/* ─── Animations ─── */

@keyframes glass-enter {
  from {
    opacity: 0;
    transform: scale(0.97) translateY(6px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes modal-overlay-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modal-dialog-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes glass-dropdown-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ambient-drift {
  0% {
    background-position: 0% 0%;
  }
  50% {
    background-position: 100% 100%;
  }
  100% {
    background-position: 0% 0%;
  }
}

@keyframes active-breathe {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.glass-animate-in {
  animation: glass-enter var(--clay-duration-normal) var(--clay-easing) both;
}

/* ─── Glass Buttons ─── */

.glass-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--kn-claw), var(--kn-claw-deep));
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease,
    filter 0.15s ease;
}

.glass-btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
  box-shadow: 0 4px 16px rgba(202, 58, 41, 0.3);
}

.glass-btn-primary:active {
  transform: translateY(0);
}

.glass-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 10px 18px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  color: var(--text);
  font-weight: 500;
  font-size: 0.88rem;
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    background 0.15s ease;
}

.glass-btn-secondary:hover {
  border-color: var(--glass-border-hover);
  background: var(--bg-hover);
}

.glass-btn-ocean {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 10px 18px;
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(0, 212, 170, 0.08);
  color: var(--kn-bioluminescence);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    background 0.15s ease;
}

.glass-btn-ocean:hover {
  border-color: rgba(0, 212, 170, 0.35);
  background: rgba(0, 212, 170, 0.14);
}

/* ─── Glass Input ─── */

.glass-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.glass-input:focus {
  outline: none;
  border-color: var(--accent);
  border-width: 2px;
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.glass-input::placeholder {
  color: var(--muted);
}

/* ─── Glass Tabs ─── */

.glass-tab {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition:
    color 0.15s ease,
    background 0.15s ease;
}

.glass-tab:hover {
  color: var(--text);
  background: var(--accent-subtle);
}

.glass-tab-active {
  color: var(--text);
  background: var(--accent-subtle);
  font-weight: 600;
}

.glass-tab-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 20%;
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 1px;
}

.glass-segmented-control {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  background: var(--glass-bg);
}

/* ─── Glass Dialog ─── */

.glass-dialog {
  background: var(--glass-bg-elevated);
  backdrop-filter: blur(40px) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(40px) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

/* ─── Glass Select Panel (Dropdown) ─── */

.glass-select-panel {
  background: var(--glass-bg-elevated);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: glass-dropdown-in 0.15s ease-out both;
}

/* ─── Glass Overlay (Modal Backdrop) ─── */

.glass-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  animation: modal-overlay-in 0.25s ease-out both;
}

/* ─── Glass Depth Layers ─── */

.glass-layer-1 {
  background: var(--glass-bg);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
}

.glass-layer-2 {
  background: var(--glass-bg-elevated);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
}

.glass-layer-3 {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
}

/* ─── Glass Card Variants ─── */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-md);
}

.glass-card-active {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px var(--accent),
    var(--shadow-md);
}

.glass-card-active-ocean {
  border-color: var(--kn-bioluminescence);
  box-shadow:
    0 0 0 1px var(--kn-bioluminescence),
    var(--shadow-md);
}

/* ─── Glass Noise Texture ─── */

.glass-noise::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.05;
  mix-blend-mode: overlay;
  pointer-events: none;
  border-radius: inherit;
}

/* ─── Glass Border Gradient ─── */

.glass-border-gradient {
  position: relative;
}

.glass-border-gradient::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--glass-border-hover), transparent 60%);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.glass-border-gradient:hover::before {
  opacity: 1;
}

/* ─── Ambient Background ─── */

.ambient-bg {
  position: relative;
}

.ambient-bg::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 20% 80%, var(--kn-claw-dim) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, var(--kn-ocean-dim) 0%, transparent 50%);
}

.ambient-bg::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 50% 30% at 60% 60%, var(--kn-claw-dim) 0%, transparent 50%),
    radial-gradient(ellipse 40% 50% at 30% 30%, rgba(0, 212, 170, 0.03) 0%, transparent 50%);
  animation: ambient-drift 120s ease-in-out infinite alternate;
  background-size: 200% 200%;
}

/* ─── Typography Utilities ─── */

.text-display {
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

/* ─── Glass Dashboard Card ─── */

.glass-dashboard-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-sm), var(--glass-highlight);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
  min-width: 0;
}

.glass-dashboard-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.glass-dashboard-card:hover {
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-md);
}

.glass-dashboard-card:hover::after {
  opacity: 0.6;
}

/* ─── Card Header Convention ─── */

.card-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
  min-height: 28px;
}

.card-header__prefix {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1;
}

.card-header__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 0;
}

.card-header__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-header__link {
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  white-space: nowrap;
}

.card-header__link:hover {
  text-decoration: underline;
}

/* ─── Count Badge ─── */

.count-badge {
  font-size: 0.72rem;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  background: var(--clay-bg-card);
  color: var(--muted);
  padding: 1px 7px;
  border-radius: 9999px;
  line-height: 1.4;
  white-space: nowrap;
}

.count-badge--accent {
  color: var(--accent);
}

.count-badge--emerald {
  color: var(--success);
}

.count-badge--amber {
  color: var(--warn);
}

.count-badge--red {
  color: var(--danger);
}

/* ─── Glass Divider ─── */

.glass-divider {
  height: 1px;
  background: var(--clay-border-subtle);
  margin: 1.25rem 0;
  border: none;
}

/* ─── Glass Event Row ─── */

.glass-event-row {
  padding: 6px 8px;
  border-radius: var(--clay-radius-sm);
  cursor: pointer;
  transition: background var(--clay-duration-fast) ease;
}

.glass-event-row:hover {
  background: var(--clay-bg-interactive);
}