/* =============================================================================
   PROVIDENCE MINING: DESIGN SYSTEM (Phase 1 Foundation)
   -----------------------------------------------------------------------------
   Non-breaking & additive:
     • Tokens live on :root (safe globally).
     • All component/base styles are namespaced (.ds-*) or scoped under .ds-scope,
       so pages that have NOT been migrated are unaffected.
   Brand preserved: magenta/crimson #fc0150 family plus the deep-crimson to magenta gradient.
   Design language (reinterpreted, not copied): glass surfaces w/ light-catching
   inset edge, generous spacing rhythm, tight display typography, restrained motion.
   ========================================================================== */

/* -----------------------------------------------------------------------------
   1. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* --- Brand (preserved existing palette) --- */
  --ds-brand-50:  #fff0f4;
  --ds-brand-100: #ffd6e1;
  --ds-brand-200: #ffabc2;
  --ds-brand-300: #ff6f92;
  --ds-brand-400: #fd3e6b;
  --ds-brand-500: #fc0150;   /* PRIMARY brand */
  --ds-brand-600: #d80145;
  --ds-brand-700: #af012c;   /* deep crimson (gradient start) */
  --ds-brand-800: #8a0223;
  --ds-brand-900: #5c0117;
  --ds-brand: var(--ds-brand-500);
  --ds-brand-gradient: linear-gradient(90deg, #af012c 0%, #fc0150 99%);
  --ds-brand-gradient-diag: linear-gradient(135deg, #af012c 0%, #fc0150 100%);
  --ds-brand-glow: 0 8px 30px -8px rgba(252, 1, 80, .45);
  --ds-on-brand: #ffffff;

  /* --- Neutrals (from existing DashLite palette) --- */
  --ds-ink-900: #101924;
  --ds-ink-800: #1f2b3a;
  --ds-ink-700: #364a63;   /* headings / strong text */
  --ds-ink-600: #526484;   /* body text */
  --ds-ink-500: #8094ae;   /* muted / secondary */
  --ds-ink-400: #b6c6de;
  --ds-line:    #e5e9f2;   /* borders */
  --ds-line-2:  #dbdfea;
  --ds-bg:      #f5f6fa;   /* app background */
  --ds-surface: #ffffff;   /* cards on light */
  --ds-surface-2: #fbfcfe;

  /* --- Dark surfaces (marketing / auth) --- */
  --ds-dark-bg:      #0a0710;
  --ds-dark-bg-2:    #120a16;
  --ds-dark-ink:     #ffffff;
  --ds-dark-ink-2:   #c9c2cf;   /* secondary text on dark */
  --ds-dark-ink-3:   #8a8494;   /* muted on dark */
  --ds-glass:        rgba(255, 255, 255, .06);   /* glass card fill */
  --ds-glass-2:      rgba(255, 255, 255, .10);   /* elevated glass */
  --ds-glass-line:   rgba(255, 255, 255, .12);
  --ds-glass-inset:  inset 0 1px 0 0 rgba(255, 255, 255, .20); /* light-catch edge */

  /* --- Semantic (preserved) --- */
  --ds-success: #1ee0ac; --ds-success-bg: #e6fbf4; --ds-success-ink: #0f9e77;
  --ds-danger:  #e85347; --ds-danger-bg:  #fdecea; --ds-danger-ink:  #c23127;
  --ds-warning: #f4a01a; --ds-warning-bg: #fef3e2; --ds-warning-ink: #b3730a;
  --ds-info:    #09c2de; --ds-info-bg:    #e4f8fb; --ds-info-ink:    #0a8ba0;

  /* --- Spacing scale (4px base) --- */
  --ds-space-1: 4px;   --ds-space-2: 8px;   --ds-space-3: 12px;
  --ds-space-4: 16px;  --ds-space-5: 20px;  --ds-space-6: 24px;
  --ds-space-8: 32px;  --ds-space-10: 40px; --ds-space-12: 48px;
  --ds-space-16: 64px; --ds-space-20: 80px; --ds-space-24: 96px;
  --ds-space-32: 128px;

  /* --- Radius --- */
  --ds-radius-xs: 6px;  --ds-radius-sm: 8px;  --ds-radius-md: 12px;
  --ds-radius-lg: 16px; --ds-radius-xl: 24px; --ds-radius-pill: 999px;

  /* --- Elevation / shadow --- */
  --ds-shadow-xs: 0 1px 2px rgba(16, 25, 36, .06);
  --ds-shadow-sm: 0 2px 8px -2px rgba(16, 25, 36, .10);
  --ds-shadow-md: 0 8px 24px -8px rgba(16, 25, 36, .14);
  --ds-shadow-lg: 0 20px 48px -16px rgba(16, 25, 36, .22);
  --ds-shadow-focus: 0 0 0 3px rgba(252, 1, 80, .28);

  /* --- Typography --- */
  --ds-font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ds-font-display: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ds-font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --ds-text-xs: 12px;  --ds-text-sm: 13px;  --ds-text-base: 15px;
  --ds-text-md: 17px;  --ds-text-lg: 20px;  --ds-text-xl: 24px;
  --ds-text-2xl: 30px; --ds-text-3xl: 38px; --ds-text-4xl: 48px;
  --ds-text-5xl: 60px;

  --ds-weight-light: 300;   --ds-weight-regular: 400;
  --ds-weight-medium: 500;  --ds-weight-semibold: 600;  --ds-weight-bold: 700;

  --ds-leading-tight: 1.15;  --ds-leading-snug: 1.3;  --ds-leading-normal: 1.55;
  --ds-tracking-tight: -0.02em;  --ds-tracking-tighter: -0.035em;
  --ds-tracking-label: 0.08em;

  /* --- Motion --- */
  --ds-ease: cubic-bezier(.4, 0, .2, 1);
  --ds-ease-out: cubic-bezier(.16, 1, .3, 1);
  --ds-dur-fast: 120ms;  --ds-dur: 200ms;  --ds-dur-slow: 360ms;
  --ds-transition: var(--ds-dur) var(--ds-ease);

  /* --- Layout --- */
  --ds-container: 1160px;
  --ds-container-narrow: 720px;
  --ds-gutter: var(--ds-space-6);

  /* --- Z-index scale --- */
  --ds-z-sticky: 1000; --ds-z-dropdown: 1100; --ds-z-overlay: 1200;
  --ds-z-modal: 1300;  --ds-z-toast: 1400;
}

/* -----------------------------------------------------------------------------
   2. BASE (opt-in via .ds-scope, never touches un-migrated pages)
   -------------------------------------------------------------------------- */
.ds-scope, .ds-scope * { box-sizing: border-box; }
.ds-scope {
  font-family: var(--ds-font-sans);
  font-size: var(--ds-text-base);
  line-height: var(--ds-leading-normal);
  color: var(--ds-ink-600);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.ds-scope h1, .ds-scope h2, .ds-scope h3, .ds-scope h4, .ds-scope h5, .ds-scope h6 {
  font-family: var(--ds-font-display);
  color: var(--ds-ink-700);
  line-height: var(--ds-leading-tight);
  letter-spacing: var(--ds-tracking-tight);
  font-weight: var(--ds-weight-semibold);
  margin: 0 0 var(--ds-space-3);
}
.ds-scope h1 { font-size: var(--ds-text-4xl); letter-spacing: var(--ds-tracking-tighter); }
.ds-scope h2 { font-size: var(--ds-text-3xl); }
.ds-scope h3 { font-size: var(--ds-text-2xl); }
.ds-scope h4 { font-size: var(--ds-text-xl); }
.ds-scope h5 { font-size: var(--ds-text-lg); }
.ds-scope p { margin: 0 0 var(--ds-space-4); }
/* Link colour must never leak into anchors used as buttons (a.ds-btn) */
.ds-scope a:not(.ds-btn) { color: var(--ds-brand-600); text-decoration: none; transition: color var(--ds-transition); }
.ds-scope a:not(.ds-btn):hover { color: var(--ds-brand-700); }
.ds-scope a.ds-btn { text-decoration: none; }

/* Dark variant of the scope (marketing / auth) */
.ds-scope.ds-dark { color: var(--ds-dark-ink-2); background: var(--ds-dark-bg); }
.ds-scope.ds-dark h1, .ds-scope.ds-dark h2, .ds-scope.ds-dark h3,
.ds-scope.ds-dark h4, .ds-scope.ds-dark h5, .ds-scope.ds-dark h6 { color: var(--ds-dark-ink); }

/* Accessible focus ring for everything interactive */
.ds-scope :focus-visible,
.ds-btn:focus-visible, .ds-input:focus-visible, .ds-tab:focus-visible {
  outline: none;
  box-shadow: var(--ds-shadow-focus);
}

/* -----------------------------------------------------------------------------
   3. LAYOUT PRIMITIVES
   -------------------------------------------------------------------------- */
.ds-container { width: 100%; max-width: var(--ds-container); margin-inline: auto; padding-inline: var(--ds-gutter); }
.ds-container--narrow { max-width: var(--ds-container-narrow); }
.ds-section { padding-block: var(--ds-space-20); }
.ds-section--sm { padding-block: var(--ds-space-12); }
.ds-stack { display: flex; flex-direction: column; gap: var(--ds-space-4); }
.ds-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--ds-space-3); }
.ds-grid { display: grid; gap: var(--ds-gutter); }
.ds-grid--2 { grid-template-columns: repeat(2, 1fr); }
.ds-grid--3 { grid-template-columns: repeat(3, 1fr); }
.ds-grid--4 { grid-template-columns: repeat(4, 1fr); }
.ds-between { display: flex; align-items: center; justify-content: space-between; gap: var(--ds-space-4); }

/* -----------------------------------------------------------------------------
   4. TYPOGRAPHY HELPERS
   -------------------------------------------------------------------------- */
.ds-display { font-family: var(--ds-font-display); font-weight: var(--ds-weight-bold);
  font-size: clamp(2.25rem, 5vw, var(--ds-text-5xl)); line-height: var(--ds-leading-tight);
  letter-spacing: var(--ds-tracking-tighter); color: inherit; }
.ds-lead { font-size: var(--ds-text-md); color: var(--ds-ink-500); line-height: var(--ds-leading-normal); }
.ds-scope.ds-dark .ds-lead { color: var(--ds-dark-ink-2); }
.ds-muted { color: var(--ds-ink-500); }
.ds-eyebrow { /* uppercase mono section label (reinterpreted from reference) */
  display: inline-flex; align-items: center; gap: var(--ds-space-2);
  font-family: var(--ds-font-mono); font-size: var(--ds-text-sm); font-weight: var(--ds-weight-medium);
  text-transform: uppercase; letter-spacing: var(--ds-tracking-label); color: var(--ds-brand-500); }
.ds-eyebrow::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--ds-brand-gradient); }
.ds-mono { font-family: var(--ds-font-mono); }
.ds-gradient-text { background: var(--ds-brand-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* -----------------------------------------------------------------------------
   5. BUTTONS
   -------------------------------------------------------------------------- */
.ds-btn {
  --_bg: var(--ds-brand-500); --_fg: var(--ds-on-brand); --_bd: transparent;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--ds-space-2);
  font-family: var(--ds-font-sans); font-size: var(--ds-text-base); font-weight: var(--ds-weight-semibold);
  line-height: 1; cursor: pointer; user-select: none; white-space: nowrap;
  padding: 0 var(--ds-space-5); height: 44px; border-radius: var(--ds-radius-md);
  color: var(--_fg); background: var(--_bg); border: 1px solid var(--_bd);
  transition: transform var(--ds-dur-fast) var(--ds-ease), box-shadow var(--ds-transition), background var(--ds-transition), color var(--ds-transition);
}
.ds-btn:hover { transform: translateY(-1px); }
.ds-btn:active { transform: translateY(0); }
.ds-btn:disabled, .ds-btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
.ds-btn--primary { background: var(--ds-brand-gradient); box-shadow: var(--ds-brand-glow), var(--ds-glass-inset); }
.ds-btn--secondary { --_bg: transparent; --_fg: var(--ds-ink-700); --_bd: var(--ds-line-2); }
.ds-btn--secondary:hover { --_bg: var(--ds-surface-2); border-color: var(--ds-brand-300); color: var(--ds-brand-600); }
.ds-btn--ghost { --_bg: transparent; --_fg: var(--ds-ink-600); }
.ds-btn--ghost:hover { --_bg: rgba(252,1,80,.06); --_fg: var(--ds-brand-600); }
.ds-btn--danger { --_bg: var(--ds-danger); }
.ds-btn--glass { background: var(--ds-glass); color: #fff; border: 1px solid var(--ds-glass-line); box-shadow: var(--ds-glass-inset); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
/* Dark surfaces: secondary/ghost must stay light-on-dark, never ink-on-dark */
.ds-scope.ds-dark .ds-btn--secondary { --_bg: var(--ds-glass); --_fg: #fff; --_bd: var(--ds-glass-line); box-shadow: var(--ds-glass-inset); }
.ds-scope.ds-dark .ds-btn--secondary:hover { --_bg: rgba(252,1,80,.16); color: #fff; border-color: var(--ds-brand-400); }
.ds-scope.ds-dark .ds-btn--ghost { --_fg: var(--ds-dark-ink-2); }
.ds-scope.ds-dark .ds-btn--ghost:hover { --_bg: rgba(255,255,255,.08); --_fg: #fff; }

.ds-btn--sm { height: 36px; font-size: var(--ds-text-sm); padding: 0 var(--ds-space-4); }
.ds-btn--lg { height: 52px; font-size: var(--ds-text-md); padding: 0 var(--ds-space-8); }
.ds-btn--pill { border-radius: var(--ds-radius-pill); }
.ds-btn--block { width: 100%; }
.ds-btn--icon { width: 44px; padding: 0; }

/* -----------------------------------------------------------------------------
   6. CARDS & SURFACES
   -------------------------------------------------------------------------- */
.ds-card {
  background: var(--ds-surface); border: 1px solid var(--ds-line);
  border-radius: var(--ds-radius-lg); box-shadow: var(--ds-shadow-sm);
  transition: transform var(--ds-transition), box-shadow var(--ds-transition), border-color var(--ds-transition);
}
.ds-card__body { padding: var(--ds-space-6); }
.ds-card__header { padding: var(--ds-space-5) var(--ds-space-6); border-bottom: 1px solid var(--ds-line); }
.ds-card__footer { padding: var(--ds-space-5) var(--ds-space-6); border-top: 1px solid var(--ds-line); }
.ds-card--hover:hover { transform: translateY(-3px); box-shadow: var(--ds-shadow-lg); border-color: var(--ds-line-2); }
.ds-card--brand { border: none; background: var(--ds-brand-gradient); color: #fff; box-shadow: var(--ds-brand-glow), var(--ds-glass-inset); }
/* Glass card (dark surfaces), reinterpreted from reference */
.ds-scope.ds-dark .ds-card,
.ds-card--glass {
  background: var(--ds-glass); border: 1px solid var(--ds-glass-line);
  box-shadow: var(--ds-glass-inset); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); color: var(--ds-dark-ink);
}

/* Stat / KPI tile */
.ds-stat { padding: var(--ds-space-6); }
.ds-stat__label { display: flex; align-items: center; gap: var(--ds-space-2); font-size: var(--ds-text-sm); color: var(--ds-ink-500); margin-bottom: var(--ds-space-2); }
.ds-stat__value { font-family: var(--ds-font-mono); font-weight: var(--ds-weight-light); font-size: var(--ds-text-3xl); letter-spacing: var(--ds-tracking-tight); color: var(--ds-ink-700); line-height: 1; }
.ds-scope.ds-dark .ds-stat__value { color: #fff; }
.ds-stat__delta { display: inline-flex; align-items: center; gap: 4px; font-size: var(--ds-text-sm); font-weight: var(--ds-weight-medium); }
.ds-stat__delta--up { color: var(--ds-success-ink); }
.ds-stat__delta--down { color: var(--ds-danger-ink); }

/* -----------------------------------------------------------------------------
   7. FORMS
   -------------------------------------------------------------------------- */
.ds-field { display: flex; flex-direction: column; gap: var(--ds-space-2); margin-bottom: var(--ds-space-4); }
.ds-label { font-size: var(--ds-text-sm); font-weight: var(--ds-weight-medium); color: var(--ds-ink-700); }
.ds-scope.ds-dark .ds-label { color: var(--ds-dark-ink-2); }
.ds-input, .ds-select, .ds-textarea {
  width: 100%; height: 46px; padding: 0 var(--ds-space-4);
  font-family: var(--ds-font-sans); font-size: var(--ds-text-base); color: var(--ds-ink-700);
  background: var(--ds-surface); border: 1px solid var(--ds-line-2); border-radius: var(--ds-radius-sm);
  transition: border-color var(--ds-transition), box-shadow var(--ds-transition);
}
.ds-textarea { height: auto; min-height: 120px; padding: var(--ds-space-3) var(--ds-space-4); resize: vertical; }
.ds-input::placeholder, .ds-textarea::placeholder { color: var(--ds-ink-400); }
.ds-input:focus, .ds-select:focus, .ds-textarea:focus { outline: none; border-color: var(--ds-brand-400); box-shadow: var(--ds-shadow-focus); }
.ds-scope.ds-dark .ds-input, .ds-scope.ds-dark .ds-select, .ds-scope.ds-dark .ds-textarea {
  background: var(--ds-glass); border-color: var(--ds-glass-line); color: #fff;
}
.ds-input-group { position: relative; display: flex; align-items: center; }
.ds-input-group .ds-input { padding-right: 44px; }
.ds-input-group__icon { position: absolute; right: var(--ds-space-3); color: var(--ds-ink-400); background: none; border: 0; cursor: pointer; display: inline-flex; }
.ds-field--error .ds-input { border-color: var(--ds-danger); }
.ds-field__hint { font-size: var(--ds-text-xs); color: var(--ds-ink-500); }
.ds-field--error .ds-field__hint { color: var(--ds-danger-ink); }

/* -----------------------------------------------------------------------------
   8. BADGES, STATUS DOTS, PROGRESS
   -------------------------------------------------------------------------- */
.ds-badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--ds-radius-pill);
  font-size: var(--ds-text-xs); font-weight: var(--ds-weight-semibold); line-height: 1.4; }
.ds-badge--neutral { background: var(--ds-line); color: var(--ds-ink-600); }
.ds-badge--success { background: var(--ds-success-bg); color: var(--ds-success-ink); }
.ds-badge--danger  { background: var(--ds-danger-bg);  color: var(--ds-danger-ink); }
.ds-badge--warning { background: var(--ds-warning-bg); color: var(--ds-warning-ink); }
.ds-badge--info    { background: var(--ds-info-bg);    color: var(--ds-info-ink); }
.ds-badge--brand   { background: var(--ds-brand-50);   color: var(--ds-brand-600); }
.ds-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.ds-dot--success { background: var(--ds-success); }
.ds-dot--danger  { background: var(--ds-danger); }
.ds-dot--warning { background: var(--ds-warning); }
.ds-dot--pulse { box-shadow: 0 0 0 0 currentColor; animation: ds-pulse 1.8s infinite; }

.ds-progress { height: 8px; background: var(--ds-line); border-radius: var(--ds-radius-pill); overflow: hidden; }
.ds-progress__bar { height: 100%; border-radius: inherit; background: var(--ds-brand-gradient); transition: width var(--ds-dur-slow) var(--ds-ease-out); }

/* -----------------------------------------------------------------------------
   9. ALERTS
   -------------------------------------------------------------------------- */
.ds-alert { display: flex; gap: var(--ds-space-3); padding: var(--ds-space-4); border-radius: var(--ds-radius-md);
  border: 1px solid transparent; font-size: var(--ds-text-base); }
.ds-alert__icon { flex: 0 0 auto; margin-top: 2px; }
.ds-alert--success { background: var(--ds-success-bg); border-color: #bff0e2; color: var(--ds-success-ink); }
.ds-alert--danger  { background: var(--ds-danger-bg);  border-color: #f7cfcb; color: var(--ds-danger-ink); }
.ds-alert--warning { background: var(--ds-warning-bg); border-color: #f8dcae; color: var(--ds-warning-ink); }
.ds-alert--info    { background: var(--ds-info-bg);    border-color: #b8ebf2; color: var(--ds-info-ink); }

/* -----------------------------------------------------------------------------
   10. TABLES
   -------------------------------------------------------------------------- */
.ds-table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--ds-line); border-radius: var(--ds-radius-lg); }
.ds-table { width: 100%; border-collapse: collapse; font-size: var(--ds-text-base); }
.ds-table thead th { text-align: left; font-size: var(--ds-text-xs); text-transform: uppercase; letter-spacing: var(--ds-tracking-label);
  color: var(--ds-ink-500); font-weight: var(--ds-weight-semibold); padding: var(--ds-space-4) var(--ds-space-5); background: var(--ds-surface-2); border-bottom: 1px solid var(--ds-line); }
.ds-table tbody td { padding: var(--ds-space-4) var(--ds-space-5); border-bottom: 1px solid var(--ds-line); color: var(--ds-ink-600); }
.ds-table tbody tr:last-child td { border-bottom: 0; }
.ds-table tbody tr { transition: background var(--ds-dur-fast) var(--ds-ease); }
.ds-table tbody tr:hover { background: var(--ds-surface-2); }
.ds-table td.ds-num, .ds-table th.ds-num { text-align: right; font-family: var(--ds-font-mono); }

/* -----------------------------------------------------------------------------
   11. MODAL / DIALOG
   -------------------------------------------------------------------------- */
.ds-modal-overlay { position: fixed; inset: 0; background: rgba(10, 7, 16, .6); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: var(--ds-space-4);
  z-index: var(--ds-z-modal); opacity: 0; visibility: hidden; transition: opacity var(--ds-dur) var(--ds-ease), visibility var(--ds-dur); }
.ds-modal-overlay.is-open { opacity: 1; visibility: visible; }
.ds-modal { width: 100%; max-width: 480px; background: var(--ds-surface); border-radius: var(--ds-radius-xl);
  box-shadow: var(--ds-shadow-lg); transform: translateY(12px) scale(.98); transition: transform var(--ds-dur-slow) var(--ds-ease-out); }
.ds-modal-overlay.is-open .ds-modal { transform: none; }
.ds-modal__header { display: flex; align-items: center; justify-content: space-between; padding: var(--ds-space-5) var(--ds-space-6); border-bottom: 1px solid var(--ds-line); }
.ds-modal__body { padding: var(--ds-space-6); }
.ds-modal__footer { display: flex; justify-content: flex-end; gap: var(--ds-space-3); padding: var(--ds-space-5) var(--ds-space-6); border-top: 1px solid var(--ds-line); }

/* -----------------------------------------------------------------------------
   12. TABS
   -------------------------------------------------------------------------- */
.ds-tabs { display: inline-flex; gap: var(--ds-space-1); padding: 4px; background: var(--ds-line); border-radius: var(--ds-radius-md); }
.ds-tab { border: 0; background: transparent; padding: 8px var(--ds-space-4); border-radius: var(--ds-radius-sm);
  font-size: var(--ds-text-sm); font-weight: var(--ds-weight-medium); color: var(--ds-ink-600); cursor: pointer; transition: all var(--ds-transition); }
.ds-tab.is-active { background: var(--ds-surface); color: var(--ds-brand-600); box-shadow: var(--ds-shadow-xs); }

/* -----------------------------------------------------------------------------
   13. TOOLTIP
   -------------------------------------------------------------------------- */
.ds-tip { position: relative; display: inline-flex; }
.ds-tip__bubble { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(4px);
  background: var(--ds-ink-800); color: #fff; font-size: var(--ds-text-xs); padding: 6px 10px; border-radius: var(--ds-radius-xs);
  white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity var(--ds-transition), transform var(--ds-transition); }
.ds-tip:hover .ds-tip__bubble { opacity: 1; transform: translateX(-50%); }

/* -----------------------------------------------------------------------------
   14. SKELETON, EMPTY & LOADING STATES
   -------------------------------------------------------------------------- */
.ds-skeleton { background: linear-gradient(90deg, var(--ds-line) 25%, var(--ds-line-2) 37%, var(--ds-line) 63%);
  background-size: 400% 100%; border-radius: var(--ds-radius-sm); animation: ds-shimmer 1.4s ease infinite; }
.ds-skeleton--text { height: 12px; margin-bottom: 8px; }
.ds-skeleton--title { height: 20px; width: 40%; }
.ds-empty { text-align: center; padding: var(--ds-space-16) var(--ds-space-6); }
.ds-empty__icon { width: 64px; height: 64px; margin: 0 auto var(--ds-space-4); border-radius: var(--ds-radius-lg);
  display: grid; place-items: center; background: var(--ds-brand-50); color: var(--ds-brand-500); font-size: 28px; }
.ds-empty__title { font-family: var(--ds-font-display); font-weight: var(--ds-weight-semibold); color: var(--ds-ink-700); margin-bottom: var(--ds-space-2); }
.ds-spinner { width: 22px; height: 22px; border-radius: 50%; border: 2.5px solid rgba(252,1,80,.2); border-top-color: var(--ds-brand-500); animation: ds-spin .7s linear infinite; }

/* -----------------------------------------------------------------------------
   15. NAVIGATION (topbar + sidebar shells)
   -------------------------------------------------------------------------- */
.ds-navbar { position: sticky; top: 0; z-index: var(--ds-z-sticky); display: flex; align-items: center;
  justify-content: space-between; height: 68px; padding-inline: var(--ds-gutter);
  background: rgba(255,255,255,.8); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-bottom: 1px solid var(--ds-line); }
.ds-navbar--dark { background: rgba(10,7,16,.7); border-color: var(--ds-glass-line); }
.ds-navbar__links { display: flex; align-items: center; gap: var(--ds-space-6); }
.ds-navlink { font-size: var(--ds-text-base); font-weight: var(--ds-weight-medium); color: var(--ds-ink-600); position: relative; }
.ds-navbar--dark .ds-navlink { color: var(--ds-dark-ink-2); }
.ds-navlink:hover, .ds-navlink.is-active { color: var(--ds-brand-500); }

.ds-sidebar { width: 264px; background: var(--ds-surface); border-right: 1px solid var(--ds-line); padding: var(--ds-space-5) var(--ds-space-3); }
.ds-side-link { display: flex; align-items: center; gap: var(--ds-space-3); padding: 11px var(--ds-space-3);
  border-radius: var(--ds-radius-sm); color: var(--ds-ink-600); font-weight: var(--ds-weight-medium);
  font-size: var(--ds-text-base); transition: all var(--ds-transition); }
.ds-side-link em, .ds-side-link .ds-side-icon { font-size: 20px; color: var(--ds-ink-500); transition: color var(--ds-transition); }
.ds-side-link:hover { background: var(--ds-surface-2); color: var(--ds-ink-700); }
.ds-side-link.is-active { background: rgba(252,1,80,.08); color: var(--ds-brand-600); }
.ds-side-link.is-active em, .ds-side-link.is-active .ds-side-icon { color: var(--ds-brand-500); }
.ds-side-heading { padding: var(--ds-space-4) var(--ds-space-3) var(--ds-space-2);
  font-size: var(--ds-text-xs); text-transform: uppercase; letter-spacing: var(--ds-tracking-label); color: var(--ds-ink-400); }

/* -----------------------------------------------------------------------------
   16. MOTION (respects reduced-motion)
   -------------------------------------------------------------------------- */
@keyframes ds-spin { to { transform: rotate(360deg); } }
@keyframes ds-shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }
@keyframes ds-pulse { 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@keyframes ds-fade-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes ds-fade-in { from { opacity: 0; } to { opacity: 1; } }
.ds-animate-in { animation: ds-fade-up var(--ds-dur-slow) var(--ds-ease-out) both; }
.ds-animate-in--1 { animation-delay: 60ms; }
.ds-animate-in--2 { animation-delay: 120ms; }
.ds-animate-in--3 { animation-delay: 180ms; }
.ds-animate-in--4 { animation-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* -----------------------------------------------------------------------------
   17. UTILITIES (prefixed, collision-safe)
   -------------------------------------------------------------------------- */
.ds-text-center { text-align: center; }
.ds-text-brand { color: var(--ds-brand-500); }
.ds-w-full { width: 100%; }
.ds-hidden { display: none !important; }
.ds-mt-2 { margin-top: var(--ds-space-2); } .ds-mt-4 { margin-top: var(--ds-space-4); } .ds-mt-6 { margin-top: var(--ds-space-6); } .ds-mt-8 { margin-top: var(--ds-space-8); }
.ds-mb-2 { margin-bottom: var(--ds-space-2); } .ds-mb-4 { margin-bottom: var(--ds-space-4); } .ds-mb-6 { margin-bottom: var(--ds-space-6); }
.ds-gap-2 { gap: var(--ds-space-2); } .ds-gap-4 { gap: var(--ds-space-4); } .ds-gap-6 { gap: var(--ds-space-6); }

/* -----------------------------------------------------------------------------
   18. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .ds-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .ds-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --ds-gutter: var(--ds-space-4); }
  .ds-section { padding-block: var(--ds-space-12); }
  .ds-grid--2, .ds-grid--3, .ds-grid--4 { grid-template-columns: 1fr; }
  .ds-navbar__links { display: none; }
  .ds-btn { min-height: 44px; } /* touch target */
  .ds-scope h1 { font-size: var(--ds-text-3xl); }
  .ds-scope h2 { font-size: var(--ds-text-2xl); }
}