/* ============================================
   LYNT Design System — Components (Internal Tools)
   ============================================
   Reusable CSS classes for buttons, forms, cards,
   tables, badges, navigation, modals.
   All tokens come from tokens.css — import it first.

   Usage:
     <link rel="stylesheet" href="css/tokens.css">
     <link rel="stylesheet" href="css/components.css">
   ============================================ */

/* -------- Reset + base -------- */
*, *::before, *::after { box-sizing: border-box; }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.lynt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: var(--radius-pill);
  padding: 10px 20px;
  font: 600 14px/1 var(--font-body);
  white-space: nowrap;
  transition:
    background var(--dur-med) var(--ease-out),
    color var(--dur-med) var(--ease-out),
    border-color var(--dur-med) var(--ease-out),
    transform var(--dur-fast);
  text-decoration: none;
  user-select: none;
}
.lynt-btn:active { transform: scale(0.985); }
.lynt-btn:focus-visible {
  outline: 2px solid var(--periwinkle-dark);
  outline-offset: 2px;
}
.lynt-btn:disabled,
.lynt-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Variants */
.lynt-btn--primary {
  background: var(--cta-bg);
  color: var(--cta-fg);
}
.lynt-btn--primary:hover { background: var(--cta-bg-hover); }

.lynt-btn--secondary {
  background: var(--surface);
  color: var(--ink);
  border: 1.5px solid var(--ink);
}
.lynt-btn--secondary:hover { background: var(--ink); color: #fff; }

.lynt-btn--ghost {
  background: transparent;
  color: var(--ink);
}
.lynt-btn--ghost:hover { background: var(--surface-sunken); }

.lynt-btn--danger {
  background: var(--coral-original);
  color: var(--ink);
}
.lynt-btn--danger:hover { background: var(--coral-dark); color: #fff; }

/* Sizes */
.lynt-btn--sm { padding: 7px 14px; font-size: 13px; }
.lynt-btn--lg { padding: 14px 26px; font-size: 16px; }
.lynt-btn--icon { padding: 8px; aspect-ratio: 1; }

/* ==========================================================================
   FORM CONTROLS
   ========================================================================== */
.lynt-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.lynt-label {
  font: 600 13px/1.2 var(--font-body);
  color: var(--fg-1);
}
.lynt-label--required::after {
  content: "*";
  color: var(--coral-dark);
  margin-left: 4px;
}
.lynt-hint {
  font: 400 12px/1.4 var(--font-body);
  color: var(--fg-3);
}
.lynt-error {
  font: 400 12px/1.4 var(--font-body);
  color: var(--coral-dark);
}

.lynt-input,
.lynt-textarea,
.lynt-select {
  font: 400 15px/1.4 var(--font-body);
  color: var(--fg-1);
  background: var(--surface);
  border: 1.5px solid var(--ink-15);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  width: 100%;
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.lynt-input::placeholder,
.lynt-textarea::placeholder {
  color: var(--fg-3);
}
.lynt-input:hover,
.lynt-textarea:hover,
.lynt-select:hover {
  border-color: var(--ink-30);
}
.lynt-input:focus,
.lynt-textarea:focus,
.lynt-select:focus {
  outline: 0;
  border-color: var(--periwinkle-dark);
  box-shadow: 0 0 0 3px var(--periwinkle-lighter);
}
.lynt-input[aria-invalid="true"],
.lynt-textarea[aria-invalid="true"] {
  border-color: var(--coral-dark);
}
.lynt-input[aria-invalid="true"]:focus,
.lynt-textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px var(--coral-lighter);
}
.lynt-input:disabled,
.lynt-textarea:disabled,
.lynt-select:disabled {
  background: var(--surface-sunken);
  color: var(--fg-3);
  cursor: not-allowed;
}

.lynt-textarea {
  min-height: 96px;
  resize: vertical;
  line-height: 1.5;
}

.lynt-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1L6 6L11 1' stroke='%23393939' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* Checkbox + Radio */
.lynt-checkbox,
.lynt-radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 400 15px/1.3 var(--font-body);
  color: var(--fg-1);
  cursor: pointer;
}
.lynt-checkbox input,
.lynt-radio input {
  width: 18px;
  height: 18px;
  accent-color: var(--periwinkle-dark);
  cursor: pointer;
}

/* Switch */
.lynt-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}
.lynt-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.lynt-switch__slider {
  position: absolute;
  inset: 0;
  background: var(--ink-15);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur-med) var(--ease-out);
}
.lynt-switch__slider::before {
  content: "";
  position: absolute;
  height: 16px;
  width: 16px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--dur-med) var(--ease-out);
}
.lynt-switch input:checked + .lynt-switch__slider {
  background: var(--teal-original);
}
.lynt-switch input:checked + .lynt-switch__slider::before {
  transform: translateX(18px);
}

/* ==========================================================================
   CARDS
   ========================================================================== */
.lynt-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: var(--border-soft);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}
.lynt-card--padded { padding: var(--space-6); }
.lynt-card--flat { box-shadow: none; }
.lynt-card--clickable {
  cursor: pointer;
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}
.lynt-card--clickable:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.lynt-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.lynt-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h4);
  color: var(--fg-1);
  margin: 0;
  line-height: var(--lh-tight);
}
.lynt-card__body { color: var(--fg-2); line-height: var(--lh-normal); }
.lynt-card__footer {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

/* Stat / KPI card */
.lynt-stat {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: var(--border-soft);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.lynt-stat__label {
  font: 700 12px/1 var(--font-body);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--fg-3);
}
.lynt-stat__value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 40px;
  line-height: 1.05;
  color: var(--fg-1);
  letter-spacing: -0.02em;
}
.lynt-stat__value--teal       { color: var(--teal-dark); }
.lynt-stat__value--periwinkle { color: var(--periwinkle-dark); }
.lynt-stat__value--coral      { color: var(--coral-dark); }
.lynt-stat__value--amber      { color: var(--amber-dark); }
.lynt-stat__delta {
  font: 600 13px/1 var(--font-body);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.lynt-stat__delta--up   { color: var(--teal-dark); }
.lynt-stat__delta--down { color: var(--coral-dark); }

/* ==========================================================================
   BADGES + PILLS
   ========================================================================== */
.lynt-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 700 11px/1 var(--font-body);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  background: var(--surface-sunken);
  color: var(--fg-1);
  white-space: nowrap;
}
.lynt-badge--teal       { background: var(--teal-lighter);       color: var(--teal-dark); }
.lynt-badge--periwinkle { background: var(--periwinkle-lighter); color: var(--periwinkle-dark); }
.lynt-badge--coral      { background: var(--coral-lighter);      color: var(--coral-dark); }
.lynt-badge--amber      { background: var(--amber-lighter);      color: var(--amber-dark); }
.lynt-badge--ink        { background: var(--ink);                color: #fff; }

.lynt-badge--dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ==========================================================================
   TABLES
   ========================================================================== */
.lynt-table-wrap {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: var(--border-soft);
  overflow: hidden;
}
.lynt-table {
  width: 100%;
  border-collapse: collapse;
  font: 400 14px/1.4 var(--font-body);
}
.lynt-table th {
  font: 700 11px/1 var(--font-body);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--fg-3);
  text-align: left;
  padding: 14px 18px;
  background: var(--surface-muted);
  border-bottom: 1px solid var(--ink-15);
  white-space: nowrap;
}
.lynt-table td {
  padding: 14px 18px;
  color: var(--fg-1);
  border-bottom: 1px solid rgba(57,57,57,0.06);
  vertical-align: middle;
}
.lynt-table tr:last-child td { border-bottom: 0; }
.lynt-table tbody tr {
  transition: background var(--dur-fast) var(--ease-out);
}
.lynt-table tbody tr:hover { background: var(--periwinkle-lighter); }
.lynt-table--compact th,
.lynt-table--compact td { padding: 8px 14px; }
.lynt-table__num {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* ==========================================================================
   NAVIGATION (app shell)
   ========================================================================== */
.lynt-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: var(--border-soft);
  height: 64px;
}
.lynt-appbar__logo { height: 28px; }
.lynt-appbar__nav { display: flex; gap: 4px; }
.lynt-appbar__link {
  font: 600 14px/1 var(--font-body);
  color: var(--fg-2);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.lynt-appbar__link:hover { background: var(--surface-muted); color: var(--fg-1); }
.lynt-appbar__link[aria-current="page"] {
  background: var(--periwinkle-lighter);
  color: var(--periwinkle-dark);
}
.lynt-appbar__actions { display: flex; align-items: center; gap: 12px; }

/* Sidebar */
.lynt-sidebar {
  width: 240px;
  height: 100vh;
  padding: 20px 12px;
  background: var(--surface);
  border-right: var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.lynt-sidebar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 20px;
}
.lynt-sidebar__brand img { height: 26px; }
.lynt-sidebar__section {
  font: 700 11px/1 var(--font-body);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--fg-3);
  padding: 16px 12px 6px;
}
.lynt-sidebar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 600 14px/1 var(--font-body);
  color: var(--fg-2);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.lynt-sidebar__item:hover { background: var(--surface-muted); color: var(--fg-1); }
.lynt-sidebar__item[aria-current="page"] {
  background: var(--periwinkle-lighter);
  color: var(--periwinkle-dark);
}

/* Breadcrumbs */
.lynt-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 400 13px/1 var(--font-body);
  color: var(--fg-3);
}
.lynt-breadcrumbs a { color: var(--fg-3); text-decoration: none; }
.lynt-breadcrumbs a:hover { color: var(--fg-1); }
.lynt-breadcrumbs__sep { color: var(--fg-4); }
.lynt-breadcrumbs__current { color: var(--fg-1); font-weight: 600; }

/* Tabs */
.lynt-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--ink-15);
}
.lynt-tab {
  font: 600 14px/1 var(--font-body);
  color: var(--fg-3);
  background: none;
  border: 0;
  cursor: pointer;
  padding: 12px 16px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.lynt-tab:hover { color: var(--fg-1); }
.lynt-tab[aria-selected="true"] {
  color: var(--fg-1);
  border-bottom-color: var(--teal-original);
}

/* ==========================================================================
   ALERTS / TOASTS
   ========================================================================== */
.lynt-alert {
  display: flex;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--periwinkle-lighter);
  color: var(--periwinkle-dark);
  font: 500 14px/1.45 var(--font-body);
  border-left: 3px solid var(--periwinkle-original);
}
.lynt-alert--success { background: var(--teal-lighter);  color: var(--teal-dark);   border-left-color: var(--teal-original); }
.lynt-alert--warning { background: var(--amber-lighter); color: var(--amber-dark);  border-left-color: var(--amber-original); }
.lynt-alert--danger  { background: var(--coral-lighter); color: var(--coral-dark);  border-left-color: var(--coral-original); }
.lynt-alert__title { font-weight: 700; }
.lynt-alert__body { color: inherit; opacity: 0.85; }

/* ==========================================================================
   MODAL / DIALOG
   ========================================================================== */
.lynt-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(47, 59, 92, 0.5);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: lynt-fade-in var(--dur-med) var(--ease-out);
}
.lynt-modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  width: min(520px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  overflow: auto;
  box-shadow: var(--shadow-lift);
  animation: lynt-pop-in var(--dur-med) var(--ease-out);
}
.lynt-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.lynt-modal__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h3);
  margin: 0;
  line-height: var(--lh-tight);
}
.lynt-modal__close {
  background: none;
  border: 0;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-2);
  font-size: 20px;
  line-height: 1;
}
.lynt-modal__close:hover { background: var(--surface-sunken); color: var(--fg-1); }
.lynt-modal__footer {
  margin-top: var(--space-6);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

@keyframes lynt-fade-in {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes lynt-pop-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ==========================================================================
   TYPOGRAPHY HELPERS
   ========================================================================== */
.lynt-eyebrow {
  font: 700 var(--fs-eyebrow)/1 var(--font-body);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--periwinkle-dark);
}
.lynt-display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
}
.lynt-lead {
  font-size: var(--fs-lead);
  color: var(--fg-2);
  line-height: var(--lh-normal);
}
.lynt-mono { font-family: var(--font-mono); }

/* Text colors */
.lynt-text-1 { color: var(--fg-1); }
.lynt-text-2 { color: var(--fg-2); }
.lynt-text-3 { color: var(--fg-3); }
.lynt-text-teal       { color: var(--teal-dark); }
.lynt-text-periwinkle { color: var(--periwinkle-dark); }
.lynt-text-coral      { color: var(--coral-dark); }
.lynt-text-amber      { color: var(--amber-dark); }

/* ==========================================================================
   LAYOUT HELPERS
   ========================================================================== */
.lynt-stack    { display: flex; flex-direction: column; gap: var(--space-4); }
.lynt-stack-sm { display: flex; flex-direction: column; gap: var(--space-2); }
.lynt-stack-lg { display: flex; flex-direction: column; gap: var(--space-6); }
.lynt-row      { display: flex; align-items: center; gap: var(--space-3); }
.lynt-row--between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.lynt-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.lynt-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.lynt-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.lynt-container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6); }
.lynt-container--narrow { max-width: 760px; margin: 0 auto; padding: 0 var(--space-6); }

/* Divider */
.lynt-divider {
  height: 1px;
  background: var(--ink-15);
  border: 0;
  margin: var(--space-5) 0;
}

/* Focus ring helper for custom interactive elements */
.lynt-focus-ring:focus-visible {
  outline: 2px solid var(--periwinkle-dark);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}