/* ============================================================
   Reusable Components - 2026 Ultra-Modern
   ============================================================ */

/* -- Buttons ------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0 20px; height: 44px;
  border-radius: var(--k-radius-sm);
  font: var(--k-text-label); font-weight: 500;
  cursor: pointer; border: 1.5px solid transparent;
  transition:
    background-color var(--k-dur-normal) var(--k-ease),
    border-color     var(--k-dur-normal) var(--k-ease),
    color            var(--k-dur-normal) var(--k-ease),
    box-shadow       var(--k-dur-normal) var(--k-ease),
    transform        var(--k-dur-fast)   var(--k-ease),
    opacity          var(--k-dur-normal) var(--k-ease);
  white-space: nowrap; user-select: none;
  position: relative; overflow: hidden;
  font-size: 16px;
}
.btn:active { transform: scale(0.97); }
.btn .material-symbols-outlined { font-size: 17px; }
/* CSS ripple effect */
.btn::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at center,
    rgba(255,255,255,0.28) 0%, transparent 65%);
  opacity: 0; transform: scale(0); pointer-events: none;
  transition: transform 0.45s var(--k-ease), opacity 0.45s var(--k-ease);
}
.btn:active::after {
  transform: scale(2.8); opacity: 1;
  transition: transform 0s, opacity 0s;
}
.btn-tonal::after, .btn-outlined::after {
  background: radial-gradient(circle at center,
    rgba(99,102,241,0.18) 0%, transparent 65%);
}
/* Universal disabled */
.btn:disabled,
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.45; cursor: not-allowed; pointer-events: none;
  transform: none !important; box-shadow: none !important;
  filter: saturate(0.4);
}

.btn-filled {
  background: var(--k-primary); color: #fff;
  border-color: transparent;
  box-shadow: 0 1px 3px rgba(80,70,228,0.2);
}
.btn-filled:hover {
  background: var(--k-primary-hover);
  box-shadow: 0 3px 10px rgba(80,70,228,0.3);
  transform: translate3d(0,-1px,0);
}
.btn-filled:active { transform: scale(0.97); }

.btn-outlined {
  background: var(--k-surface); color: var(--k-primary);
  border-color: var(--k-border);
}
.btn-outlined:hover { border-color: var(--k-primary); background: var(--k-primary-light); }

.btn-text {
  background: transparent; color: var(--k-primary);
  padding: 0 14px; border: none;
}
.btn-text:hover { background: var(--k-primary-light); }

.btn-tonal {
  background: var(--k-surface-sunken);
  color: var(--k-text); border: 1.5px solid var(--k-border);
}
.btn-tonal:hover { background: var(--k-border-light); border-color: var(--k-text-tertiary); }

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff; border-color: transparent;
  box-shadow: var(--k-shadow-error);
}
.btn-danger:hover { box-shadow: 0 6px 20px rgba(239,68,68,0.35); transform: translate3d(0, -1px, 0); }

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669) !important;
  color: #fff !important; border-color: transparent !important;
  box-shadow: var(--k-shadow-success) !important;
}
.btn-success:hover { box-shadow: 0 6px 20px rgba(16,185,129,0.35) !important; transform: translate3d(0, -1px, 0); }
.btn-success:disabled {
  background: var(--k-surface-sunken) !important;
  color: var(--k-text-tertiary) !important;
  box-shadow: none !important; cursor: not-allowed;
}

.btn-sm { height: 30px; padding: 0 14px; font-size: 12px; }
.btn-icon {
  width: 36px; height: 36px; padding: 0;
  border-radius: var(--k-radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: none; border: 1.5px solid transparent; cursor: pointer;
  color: var(--k-text-secondary); position: relative; overflow: hidden;
  transition: all var(--k-dur-normal) var(--k-ease);
}
.btn-icon:hover {
  background: var(--k-surface-sunken);
  color: var(--k-text); border-color: var(--k-border);
}

/* -- Cards (Glassmorphic Elevated) -------------------- */
.card {
  background: var(--k-surface);
  border-radius: var(--k-radius-lg);
  border: 1px solid var(--k-border-light);
  box-shadow: var(--k-shadow-sm);
  padding: 20px;
  transition:
    box-shadow   var(--k-dur-normal) var(--k-ease),
    transform    var(--k-dur-normal) var(--k-ease),
    border-color var(--k-dur-normal) var(--k-ease);
  will-change: transform;
}
.card:hover { box-shadow: var(--k-shadow-md); transform: translate3d(0, -1px, 0); }
.card-elevated, .card.elevated {
  box-shadow: var(--k-shadow-lg); border: none;
}
.card-elevated:hover, .card.elevated:hover { box-shadow: var(--k-shadow-xl); }
.card-filled {
  background: var(--k-surface-sunken); border: 1px solid var(--k-border-light);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px solid var(--k-border-light);
}
.card-title { font: var(--k-text-h4); color: var(--k-text); }
.card-subtitle { font: var(--k-text-small); color: var(--k-text-secondary); margin-top: 2px; }

/* -- Metric Card (Gradient Accent) -------------------- */
.metric-card {
  background: var(--k-surface);
  border-radius: var(--k-radius-lg);
  border: 1px solid var(--k-border-light);
  text-align: center;
  padding: 20px 16px;
  transition:
    box-shadow   var(--k-dur-normal) var(--k-ease),
    transform    var(--k-dur-normal) var(--k-ease),
    border-color var(--k-dur-normal) var(--k-ease);
  position: relative;
  overflow: hidden;
  will-change: transform;
}
.metric-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--k-gradient);
  border-radius: var(--k-radius-lg) var(--k-radius-lg) 0 0;
}
.metric-card:hover {
  box-shadow: var(--k-shadow-md);
  transform: translate3d(0, -2px, 0);
}
.metric-card-label, .metric-card .metric-label {
  font: var(--k-text-label); color: var(--k-text-secondary);
  display: flex; align-items: center; justify-content: center; gap: 6px;
  margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px;
}
.metric-card-label .material-symbols-outlined,
.metric-card .metric-label .material-symbols-outlined { font-size: 15px; }
.metric-info { opacity: 0.4; cursor: help; }
.metric-card-value, .metric-card .metric-value {
  font: var(--k-text-number); color: var(--k-text);
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
}
.metric-card .metric-value.disabled {
  color: var(--k-text-tertiary); font: var(--k-text-h2);
}
.metric-card-secondary, .metric-card .metric-secondary {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-top: 6px;
  font: var(--k-text-small); color: var(--k-text-secondary);
}

/* -- Status Badge (Pill Style) ------------------------ */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--k-radius-full);
  font-size: 13px; font-weight: 500;
  letter-spacing: 0.2px;
}
.badge-success { background: var(--k-success-light); color: var(--k-success-dark); }
.badge-error   { background: var(--k-error-light);   color: var(--k-error-dark); }
.badge-warning { background: var(--k-warning-light); color: var(--k-warning-dark); }
.badge-info    { background: var(--k-info-light);    color: var(--k-info-dark); }
.badge-neutral { background: var(--k-surface-sunken); color: var(--k-text-secondary); }

/* -- Progress Bar (Gradient Fill) --------------------- */
.progress-bar {
  height: 6px; background: var(--k-surface-sunken);
  border-radius: var(--k-radius-full); overflow: hidden;
}
.progress-bar .fill, .progress-fill {
  height: 100%; background: var(--k-gradient);
  border-radius: var(--k-radius-full);
  transition: width var(--k-dur-slow) var(--k-ease);
}

/* -- Input Fields (Modern Rounded) -------------------- */
.md-field { position: relative; }
.md-field label {
  display: block; font: var(--k-text-label);
  color: var(--k-text-secondary); margin-bottom: 6px;
}
.md-field input, .md-field select, .md-field textarea {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--k-border); border-radius: var(--k-radius-md);
  font: var(--k-text-body); color: var(--k-text);
  background: var(--k-surface);
  transition:
    border-color     var(--k-dur-normal) var(--k-ease),
    box-shadow       var(--k-dur-normal) var(--k-ease),
    background-color var(--k-dur-normal) var(--k-ease);
  outline: none;
}
.md-field input:hover, .md-field select:hover, .md-field textarea:hover {
  border-color: var(--k-text-tertiary);
}
.md-field input:focus, .md-field select:focus, .md-field textarea:focus {
  border-color: var(--k-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.md-field textarea { resize: vertical; min-height: 80px; }

.input-field { position: relative; margin-bottom: 4px; }
.input-field input, .input-field select {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--k-border); border-radius: var(--k-radius-md);
  font: var(--k-text-body); color: var(--k-text);
  background: var(--k-surface); outline: none;
  transition:
    border-color     var(--k-dur-normal) var(--k-ease),
    box-shadow       var(--k-dur-normal) var(--k-ease),
    background-color var(--k-dur-normal) var(--k-ease);
}
.input-field input:hover, .input-field select:hover { border-color: var(--k-text-tertiary); }
.input-field input:focus, .input-field select:focus {
  border-color: var(--k-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.input-field label {
  position: absolute; top: -8px; left: 10px;
  padding: 0 6px; background: var(--k-surface);
  font: var(--k-text-xs); color: var(--k-text-secondary);
}
.input-field input:focus + label,
.input-field select:focus + label { color: var(--k-primary); }

.md-outlined-field {
  position: relative; border: 1.5px solid var(--k-border);
  border-radius: var(--k-radius-md); padding: 10px 14px;
  transition:
    border-color var(--k-dur-normal) var(--k-ease),
    box-shadow   var(--k-dur-normal) var(--k-ease);
}
.md-outlined-field:focus-within {
  border-color: var(--k-primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}

/* -- Search Bar --------------------------------------- */
.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--k-surface); border: 1.5px solid var(--k-border);
  border-radius: var(--k-radius-sm); padding: 0 16px; height: 36px;
  transition:
    border-color var(--k-dur-normal) var(--k-ease),
    box-shadow   var(--k-dur-normal) var(--k-ease);
}
.search-bar:focus-within {
  border-color: var(--k-primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.search-bar .material-symbols-outlined { font-size: 20px; color: var(--k-text-tertiary); }
.search-bar input {
  flex: 1; border: none; background: none; outline: none;
  font: var(--k-text-body); color: var(--k-text);
}
.search-bar input::placeholder { color: var(--k-text-tertiary); }

/* -- Tables (Modern Rounded Rows) --------------------- */
.md-table { width: 100%; border-collapse: separate; border-spacing: 0 4px; }
.md-table thead th {
  padding: 10px 16px; text-align: left;
  font: var(--k-text-label-sm); font-weight: 700;
  color: var(--k-text-secondary); text-transform: uppercase;
  letter-spacing: 0.5px; border-bottom: none;
  background: transparent; position: sticky; top: 0; z-index: 1;
  white-space: nowrap;
}
.md-table tbody td {
  padding: 12px 16px; font: var(--k-text-body);
  border-bottom: none; vertical-align: middle;
  background: var(--k-surface);
  font-variant-numeric: tabular-nums;
}
.md-table tbody td:first-child { border-radius: var(--k-radius-md) 0 0 var(--k-radius-md); }
.md-table tbody td:last-child { border-radius: 0 var(--k-radius-md) var(--k-radius-md) 0; }
.md-table tbody tr {
  transition: background-color var(--k-dur-fast) var(--k-ease);
}
.md-table tbody tr:hover td {
  background: var(--k-surface-hover);
}
.md-table tbody tr.selected td { background: var(--k-primary-light); }
.md-table tbody tr.clickable { cursor: pointer; }

/* -- Checkbox ----------------------------------------- */
.md-checkbox { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.md-checkbox input[type="checkbox"] { display: none; }
.md-checkbox .checkmark {
  width: 18px; height: 18px;
  border: 2px solid var(--k-border); border-radius: var(--k-radius-xs);
  display: flex; align-items: center; justify-content: center;
  transition:
    background-color var(--k-dur-fast) var(--k-ease),
    border-color     var(--k-dur-fast) var(--k-ease);
}
.md-checkbox input:checked + .checkmark {
  background: var(--k-gradient); border-color: var(--k-primary);
}
.md-checkbox input:checked + .checkmark::after {
  content: ''; display: block;
  width: 10px; height: 7px;
  clip-path: polygon(14% 44%, 0% 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
  background: #fff;
}

/* -- Toggle Group (Pill Segmented Control) ------------ */
.toggle-group {
  display: flex; border: 1.5px solid var(--k-border);
  border-radius: var(--k-radius-full); overflow: hidden;
  background: var(--k-surface-sunken);
}
.toggle-group button, .toggle-btn {
  padding: 8px 18px; border: none; background: none; cursor: pointer;
  font: var(--k-text-label); color: var(--k-text-secondary);
  transition:
    background-color var(--k-dur-normal) var(--k-ease),
    color            var(--k-dur-normal) var(--k-ease),
    box-shadow       var(--k-dur-normal) var(--k-ease);
  position: relative;
}
.toggle-group button:last-child, .toggle-btn:last-child { border-right: none; }
.toggle-group button.active, .toggle-btn.active {
  background: var(--k-gradient); color: #fff;
  box-shadow: var(--k-shadow-primary);
  border-radius: var(--k-radius-full);
}
.toggle-group button.active-dark {
  background: var(--k-gradient-dark); color: #fff;
}
.toggle-group button:hover:not(.active):not(.active-dark) {
  background: var(--k-surface); color: var(--k-text);
}

/* -- Chips (Pill) ------------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: var(--k-radius-full);
  border: 1.5px solid var(--k-border); font: var(--k-text-label);
  background: var(--k-surface); cursor: pointer;
  transition:
    background-color var(--k-dur-normal) var(--k-ease),
    border-color     var(--k-dur-normal) var(--k-ease),
    color            var(--k-dur-normal) var(--k-ease);
}
.chip:hover { background: var(--k-surface-sunken); }
.chip.selected {
  background: var(--k-primary-light); border-color: var(--k-primary);
  color: var(--k-primary);
}
.chip .chip-remove { font-size: 16px; cursor: pointer; color: var(--k-text-secondary); }
.chip .chip-icon { width: 8px; height: 8px; border-radius: 50%; }

/* -- Tag Pill ----------------------------------------- */
.tag-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 12px; border-radius: var(--k-radius-full);
  background: var(--k-surface-sunken); border: 1px solid var(--k-border-light);
  font: var(--k-text-xs);
}
.tag-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--k-primary); }
.tag-pill .remove { cursor: pointer; font-size: 14px; color: var(--k-text-secondary); margin-left: 2px; }