/* =====================================================================
   BitCare Design System — bitcare-ds.css
   WP-DESIGN-001 · Version 1.0

   The single stylesheet for the BitCare Platform (public site, and the
   foundation for Customer Portal, Partner Portal, Operations Platform).

   Principles (see docs/WP-DESIGN-001-design-system.md):
   - Trust before marketing: calm, factual, premium simplicity
   - One platform: same tokens will serve every future surface
   - Reusable components only — no page-specific UI in this file

   All classes are prefixed `ds-`. All raw values live in tokens.
   Legacy pages continue to use site.css; do not mix the two on one page.
   ===================================================================== */

/* =====================================================================
   0. TYPEFACE — self-hosted Inter (variable, latin subset)
   Self-hosted for performance (no third-party connection, one 48 KB
   file covers weights 400–700) and privacy. Pages should preload it:
   <link rel="preload" href="/assets/fonts/inter-var-latin.woff2"
         as="font" type="font/woff2" crossorigin>
   ===================================================================== */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/assets/fonts/inter-var-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FB01-FB02;
}

/* =====================================================================
   1. DESIGN TOKENS
   ===================================================================== */
:root {
  /* ---- Color · surfaces (calm dark, slightly cool neutrals) ---- */
  --ds-bg:            #0B0C0E;
  --ds-bg-raised:     #121316;
  --ds-bg-elevated:   #1A1C20;
  --ds-bg-overlay:    rgba(11, 12, 14, 0.88);

  /* ---- Color · borders ---- */
  --ds-border:        rgba(255, 255, 255, 0.08);
  --ds-border-strong: rgba(255, 255, 255, 0.16);

  /* ---- Color · text ---- */
  --ds-text:          #F5F6F7;
  --ds-text-2:        #A6ABB3;
  --ds-text-3:        #71767E;

  /* ---- Color · brand accent (refined amber — WP-DESIGN-001 Amber-600 adapted for dark theme) ---- */
  --ds-accent:        #D49A2D;
  --ds-accent-hover:  #BE8A24;
  --ds-accent-soft:   rgba(212, 154, 45, 0.12);
  --ds-accent-border: rgba(212, 154, 45, 0.32);
  --ds-on-accent:     #0A0A0A;

  /* ---- Color · semantic (muted, non-alarmist) ---- */
  --ds-success:       #3FB68B;
  --ds-success-soft:  rgba(63, 182, 139, 0.12);
  --ds-warning:       #E0A83E;
  --ds-warning-soft:  rgba(224, 168, 62, 0.12);
  --ds-danger:        #E06A5F;
  --ds-danger-soft:   rgba(224, 106, 95, 0.12);
  --ds-info:          #6FA8DC;
  --ds-info-soft:     rgba(111, 168, 220, 0.12);

  /* ---- Typography ---- */
  --ds-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
             Roboto, 'Helvetica Neue', Arial, sans-serif;
  --ds-font-mono: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  /* Display font for hero headings — load 'DM Serif Display' via Google Fonts on each page */
  --ds-font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;

  /* Type scale — large display sizes, tight tracking (Swiss/premium) */
  --ds-fs-display: clamp(2.6rem, 6vw, 4.5rem);      /* hero H1 */
  --ds-fs-1: clamp(2.1rem, 4.4vw, 3.25rem);         /* page H1 / section feature */
  --ds-fs-2: clamp(1.65rem, 3vw, 2.35rem);          /* section H2 */
  --ds-fs-3: 1.375rem;                               /* H3 */
  --ds-fs-4: 1.0625rem;                              /* H4 */
  --ds-fs-lead: clamp(1.0625rem, 1.6vw, 1.25rem);   /* lede paragraph */
  --ds-fs-body: 1rem;
  --ds-fs-small: 0.875rem;
  --ds-fs-caption: 0.78rem;

  /* ---- Spacing (4px base) ---- */
  --ds-s-1: 4px;
  --ds-s-2: 8px;
  --ds-s-3: 12px;
  --ds-s-4: 16px;
  --ds-s-5: 24px;
  --ds-s-6: 32px;
  --ds-s-7: 48px;
  --ds-s-8: 64px;
  --ds-s-9: 96px;
  --ds-s-10: 128px;

  /* ---- Radii ---- */
  --ds-r-sm: 8px;
  --ds-r-md: 12px;
  --ds-r-lg: 16px;
  --ds-r-xl: 24px;
  --ds-r-pill: 999px;

  /* ---- Elevation ---- */
  --ds-shadow-1: 0 1px 2px rgba(0,0,0,0.4);
  --ds-shadow-2: 0 8px 24px rgba(0,0,0,0.35);
  --ds-shadow-3: 0 24px 64px rgba(0,0,0,0.5);
  --ds-shadow-accent: 0 4px 20px rgba(212, 154, 45, 0.25);

  /* ---- Layout ---- */
  --ds-container: 1120px;
  --ds-container-wide: 1280px;
  --ds-container-narrow: 760px;
  --ds-gutter: 24px;
  --ds-header-h: 72px;

  /* ---- Motion (restrained — no decorative animation) ---- */
  --ds-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ds-t-fast: 150ms;
  --ds-t-med: 250ms;
}

/* =====================================================================
   2. BASE
   ===================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body.ds {
  margin: 0;
  font-family: var(--ds-font);
  font-size: var(--ds-fs-body);
  line-height: 1.65;
  color: var(--ds-text);
  background: var(--ds-bg);
  min-height: 100vh;
  overflow-x: hidden;
  padding-top: var(--ds-header-h);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.ds h1, .ds h2, .ds h3, .ds h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.ds h1 { font-size: var(--ds-fs-1); }
.ds h2 { font-size: var(--ds-fs-2); }
.ds h3 { font-size: var(--ds-fs-3); letter-spacing: -0.01em; }
.ds h4 { font-size: var(--ds-fs-4); letter-spacing: 0; }
.ds p  { margin: 0 0 1em; }
.ds p:last-child { margin-bottom: 0; }

.ds a:not(.ds-btn) { color: var(--ds-accent); text-decoration: none; }
.ds a:not(.ds-btn):hover { text-decoration: underline; text-underline-offset: 3px; }

.ds img, .ds svg { max-width: 100%; height: auto; }

.ds ::selection { background: var(--ds-accent-soft); }

/* Focus visibility — accessibility is a trust signal */
.ds :focus-visible {
  outline: 2px solid var(--ds-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .ds *, .ds *::before, .ds *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* Skip link */
.ds-skip-link {
  position: absolute;
  left: -999px; top: 12px;
  background: var(--ds-bg-elevated);
  border: 1px solid var(--ds-border-strong);
  color: var(--ds-text);
  padding: 10px 14px;
  border-radius: var(--ds-r-sm);
  text-decoration: none;
  z-index: 9999;
}
.ds-skip-link:focus { left: 12px; }

/* =====================================================================
   3. LAYOUT — containers, grid, stacks, sections
   ===================================================================== */
.ds-container        { max-width: var(--ds-container);        margin: 0 auto; padding: 0 var(--ds-gutter); }
.ds-container-wide   { max-width: var(--ds-container-wide);   margin: 0 auto; padding: 0 var(--ds-gutter); }
.ds-container-narrow { max-width: var(--ds-container-narrow); margin: 0 auto; padding: 0 var(--ds-gutter); }

/* Responsive grid. Use .ds-grid + a column count modifier.
   Columns collapse: 4→2→1, 3→1, 2→1. */
.ds-grid { display: grid; gap: var(--ds-s-5); }
.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-grid-split { grid-template-columns: 1fr 1fr; align-items: center; gap: var(--ds-s-8); }

@media (max-width: 960px) {
  .ds-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ds-grid-3 { grid-template-columns: 1fr; }
  .ds-grid-split { grid-template-columns: 1fr; gap: var(--ds-s-6); }
}
@media (max-width: 640px) {
  .ds-grid-2, .ds-grid-4 { grid-template-columns: 1fr; }
}

/* Vertical rhythm helper */
.ds-stack > * + * { margin-top: var(--ds-s-4); }
.ds-stack-lg > * + * { margin-top: var(--ds-s-6); }

/* Section — the standard page band */
.ds-section { padding: var(--ds-s-9) 0; }
.ds-section-tight { padding: var(--ds-s-8) 0; }
.ds-section-alt { background: var(--ds-bg-raised); border-top: 1px solid var(--ds-border); border-bottom: 1px solid var(--ds-border); }

@media (max-width: 768px) {
  .ds-section { padding: var(--ds-s-8) 0; }
  .ds-section-tight { padding: var(--ds-s-7) 0; }
}

.ds-divider { border: 0; border-top: 1px solid var(--ds-border); margin: var(--ds-s-6) 0; }

/* =====================================================================
   4. TYPOGRAPHY COMPONENTS
   ===================================================================== */
/* Kicker — small-caps label above a heading */
.ds-kicker {
  display: inline-block;
  font-size: var(--ds-fs-caption);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ds-accent);
  margin-bottom: var(--ds-s-3);
}
.ds-kicker-neutral { color: var(--ds-text-3); }

/* Section header — kicker + title + lead, centered by default */
.ds-section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--ds-s-8);
}
.ds-section-header.ds-left { text-align: left; margin-left: 0; }
.ds-section-header h2 { margin-bottom: var(--ds-s-4); }
.ds-section-header .ds-lead { margin: 0 auto; }
.ds-section-header.ds-left .ds-lead { margin-left: 0; }

.ds-lead {
  font-size: var(--ds-fs-lead);
  line-height: 1.6;
  color: var(--ds-text-2);
  max-width: 640px;
}

.ds-muted { color: var(--ds-text-2); }
.ds-subtle { color: var(--ds-text-3); }
.ds-small { font-size: var(--ds-fs-small); }
.ds-center { text-align: center; }
.ds-accent-text { color: var(--ds-accent); }

/* =====================================================================
   5. ICONS
   Strategy: inline stroke SVGs (Lucide set), 24px viewBox,
   stroke-width 2, stroke="currentColor", fill="none".
   Icons inherit text color; size via these classes.
   ===================================================================== */
.ds-icon    { width: 20px; height: 20px; flex-shrink: 0; }
.ds-icon-sm { width: 16px; height: 16px; flex-shrink: 0; }
.ds-icon-lg { width: 28px; height: 28px; flex-shrink: 0; }

/* Icon tile — icon inside a soft square (feature cards etc.) */
.ds-icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--ds-r-md);
  background: var(--ds-accent-soft);
  color: var(--ds-accent);
  flex-shrink: 0;
}
.ds-icon-tile-neutral { background: var(--ds-bg-elevated); color: var(--ds-text-2); }
.ds-icon-tile-accent  { background: var(--ds-accent-soft);  color: var(--ds-accent); }

/* =====================================================================
   6. BUTTONS
   ===================================================================== */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ds-s-2);
  padding: 12px 22px;
  border-radius: var(--ds-r-md);
  border: 1px solid transparent;
  font-family: var(--ds-font);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none !important;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--ds-t-fast) var(--ds-ease),
              border-color var(--ds-t-fast) var(--ds-ease),
              color var(--ds-t-fast) var(--ds-ease),
              box-shadow var(--ds-t-fast) var(--ds-ease);
}
.ds-btn .ds-icon, .ds-btn svg { width: 17px; height: 17px; }

.ds-btn-primary {
  background: var(--ds-accent);
  color: var(--ds-on-accent);
}
.ds-btn-primary:hover { background: var(--ds-accent-hover); box-shadow: var(--ds-shadow-accent); }

.ds-btn-secondary {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.28);
  color: var(--ds-text);
}
.ds-btn-secondary:hover { border-color: var(--ds-accent-border); background: var(--ds-accent-soft); color: var(--ds-text); }

.ds-btn-ghost {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.20);
  color: var(--ds-text);
}
.ds-btn-ghost:hover { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.30); }

/* Quiet text button (inline actions) */
.ds-btn-quiet {
  background: none;
  border: none;
  padding: 6px 8px;
  color: var(--ds-accent);
}
.ds-btn-quiet:hover { background: var(--ds-accent-soft); }

.ds-btn-sm { padding: 8px 14px; font-size: var(--ds-fs-small); border-radius: var(--ds-r-sm); }
.ds-btn-lg { padding: 15px 28px; font-size: 1.0625rem; border-radius: 14px; }
.ds-btn-block { width: 100%; }
.ds-btn[disabled], .ds-btn[aria-disabled="true"] { opacity: 0.45; pointer-events: none; }

/* Button row */
.ds-btn-row { display: flex; gap: var(--ds-s-3); flex-wrap: wrap; align-items: center; }
.ds-btn-row.ds-center { justify-content: center; }

/* =====================================================================
   7. BADGES, PILLS, TAGS
   ===================================================================== */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--ds-r-pill);
  font-size: var(--ds-fs-caption);
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--ds-border);
  background: var(--ds-bg-elevated);
  color: var(--ds-text-2);
  white-space: nowrap;
}
.ds-badge .ds-icon-sm, .ds-badge svg { width: 13px; height: 13px; }
.ds-badge-accent  { background: var(--ds-accent-soft);  border-color: var(--ds-accent-border); color: var(--ds-accent); }
.ds-badge-success { background: var(--ds-success-soft); border-color: rgba(63,182,139,0.3);   color: var(--ds-success); }
.ds-badge-info    { background: var(--ds-info-soft);    border-color: rgba(111,168,220,0.3);  color: var(--ds-info); }

/* Trust badge — factual assurance chip (used in trust strips) */
.ds-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-radius: var(--ds-r-pill);
  border: 1px solid var(--ds-border);
  background: var(--ds-bg-raised);
  color: var(--ds-text-2);
  font-size: var(--ds-fs-small);
  font-weight: 500;
  white-space: nowrap;
}
.ds-trust-badge .ds-icon-sm, .ds-trust-badge svg { color: var(--ds-success); width: 15px; height: 15px; }

.ds-trust-strip {
  display: flex;
  gap: var(--ds-s-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* Tier tag — marks a feature/step with its subscription tier */
.ds-tier-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--ds-r-pill);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ds-tier-essential { background: rgba(255,255,255,0.07); color: var(--ds-text-2); }
.ds-tier-sovereign { background: var(--ds-accent-soft);  color: var(--ds-accent); }
.ds-tier-legacy    { background: var(--ds-info-soft);    color: var(--ds-info); }

/* =====================================================================
   8. CARDS
   ===================================================================== */
.ds-card {
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-lg);
  padding: var(--ds-s-6);
}
.ds-card-elevated { background: var(--ds-bg-elevated); box-shadow: var(--ds-shadow-2); }
.ds-card-hover { transition: border-color var(--ds-t-med) var(--ds-ease), transform var(--ds-t-med) var(--ds-ease); }
.ds-card-hover:hover { border-color: var(--ds-border-strong); transform: translateY(-2px); }

.ds-card h3, .ds-card h4 { margin-bottom: var(--ds-s-3); }
.ds-card .ds-icon-tile { margin-bottom: var(--ds-s-4); }
.ds-card p { color: var(--ds-text-2); font-size: 0.9375rem; }

/* Metric card — single figure + label (dashboards, stats) */
.ds-metric {
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-lg);
  padding: var(--ds-s-5);
}
.ds-metric-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.ds-metric-label {
  font-size: var(--ds-fs-small);
  color: var(--ds-text-3);
  margin-top: var(--ds-s-1);
}
.ds-metric-delta { font-size: var(--ds-fs-small); font-weight: 600; margin-top: var(--ds-s-2); }
.ds-metric-delta.up { color: var(--ds-success); }
.ds-metric-delta.down { color: var(--ds-danger); }

/* =====================================================================
   9. CALLOUTS — information, positioning, warnings
   ===================================================================== */
.ds-callout {
  display: flex;
  gap: var(--ds-s-4);
  padding: var(--ds-s-5);
  border-radius: var(--ds-r-md);
  border: 1px solid var(--ds-border);
  background: var(--ds-bg-raised);
  font-size: 0.9375rem;
  color: var(--ds-text-2);
}
.ds-callout > .ds-icon, .ds-callout > svg { margin-top: 2px; color: var(--ds-text-3); }
.ds-callout strong, .ds-callout h4 { color: var(--ds-text); }
.ds-callout h4 { margin-bottom: var(--ds-s-2); }

.ds-callout-info    { border-color: rgba(111,168,220,0.3);  background: var(--ds-info-soft); }
.ds-callout-info    > .ds-icon, .ds-callout-info > svg { color: var(--ds-info); }
.ds-callout-success { border-color: rgba(63,182,139,0.3);   background: var(--ds-success-soft); }
.ds-callout-success > .ds-icon, .ds-callout-success > svg { color: var(--ds-success); }
.ds-callout-warning { border-color: rgba(224,168,62,0.3);   background: var(--ds-warning-soft); }
.ds-callout-warning > .ds-icon, .ds-callout-warning > svg { color: var(--ds-warning); }
.ds-callout-accent  { border-color: var(--ds-accent-border); background: var(--ds-accent-soft); }
.ds-callout-accent  > .ds-icon, .ds-callout-accent > svg { color: var(--ds-accent); }

/* =====================================================================
   10. FEATURE LIST — checked capability lists
   ===================================================================== */
.ds-feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--ds-s-3);
}
.ds-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--ds-s-3);
  font-size: 0.9375rem;
  color: var(--ds-text-2);
  line-height: 1.5;
}
.ds-feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 18px; height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  background-color: var(--ds-success-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233FB68B' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 11px;
  background-position: center;
  background-repeat: no-repeat;
}
.ds-feature-list li.ds-locked { color: var(--ds-text-3); }
.ds-feature-list li.ds-locked::before {
  background-color: rgba(255,255,255,0.06);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2371767E' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect width='18' height='11' x='3' y='11' rx='2' ry='2'/%3E%3Cpath d='M7 11V7a5 5 0 0 1 10 0v4'/%3E%3C/svg%3E");
  background-size: 10px;
}
.ds-feature-list li strong { color: var(--ds-text); font-weight: 600; }

/* =====================================================================
   11. JOURNEY TIMELINE — the 5-step Continuity Framework
   Horizontal on desktop, vertical on mobile.
   ===================================================================== */
.ds-journey {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--ds-s-4);
  counter-reset: journey;
}
.ds-journey-step {
  position: relative;
  counter-increment: journey;
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-lg);
  padding: var(--ds-s-5);
}
.ds-journey-step::before {
  content: counter(journey);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--ds-accent-soft);
  color: var(--ds-accent);
  font-size: var(--ds-fs-small);
  font-weight: 700;
  margin-bottom: var(--ds-s-3);
}
/* connector arrow between steps (desktop) */
.ds-journey-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: calc(-1 * var(--ds-s-4) + 2px);
  width: 14px; height: 14px;
  transform: translateY(-50%);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2371767E' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'/%3E%3Cpath d='m12 5 7 7-7 7'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  z-index: 1;
}
.ds-journey-step h3, .ds-journey-step h4 { font-size: 1.05rem; margin-bottom: var(--ds-s-2); }
.ds-journey-step p { font-size: var(--ds-fs-small); color: var(--ds-text-2); margin-bottom: var(--ds-s-3); }
.ds-journey-step .ds-tier-tag { position: static; }

@media (max-width: 1024px) {
  .ds-journey { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .ds-journey-step:not(:last-child)::after {
    top: auto; right: auto;
    bottom: calc(-1 * var(--ds-s-4) + 1px);
    left: 24px;
    transform: rotate(90deg);
  }
}

/* =====================================================================
   12. TIER FLOW — Essential ↓ Sovereign ↓ Legacy progression
   ===================================================================== */
.ds-tier-flow {
  display: grid;
  gap: 0;
  max-width: 820px;
  margin: 0 auto;
}
.ds-tier-flow-item {
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-lg);
  padding: var(--ds-s-6);
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  gap: var(--ds-s-6);
  align-items: start;
}
.ds-tier-flow-item + .ds-tier-flow-item { position: relative; margin-top: var(--ds-s-7); }
/* downward connector between tiers */
.ds-tier-flow-item + .ds-tier-flow-item::before {
  content: '';
  position: absolute;
  top: calc(-1 * var(--ds-s-7));
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: var(--ds-s-7);
  background: linear-gradient(var(--ds-border-strong), var(--ds-accent-border));
}
.ds-tier-flow-name h3 { margin-bottom: var(--ds-s-2); }
.ds-tier-flow-name .ds-tier-price { color: var(--ds-text-3); font-size: var(--ds-fs-small); font-weight: 500; }
.ds-tier-flow-item.ds-featured { border-color: var(--ds-accent-border); }

@media (max-width: 640px) {
  .ds-tier-flow-item { grid-template-columns: 1fr; gap: var(--ds-s-4); }
}

/* =====================================================================
   13. PRICING CARDS
   ===================================================================== */
.ds-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--ds-s-5);
  align-items: stretch;
}
@media (max-width: 960px) { .ds-pricing-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; } }

.ds-pricing-card {
  display: flex;
  flex-direction: column;
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-xl);
  padding: var(--ds-s-6);
  position: relative;
}
.ds-pricing-card.ds-featured {
  border-color: var(--ds-accent-border);
  background: linear-gradient(180deg, rgba(247,147,26,0.05), var(--ds-bg-raised) 40%);
}
.ds-pricing-flag {
  position: absolute;
  top: calc(-1 * var(--ds-s-3));
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  border-radius: var(--ds-r-pill);
  background: var(--ds-accent);
  color: var(--ds-on-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ds-pricing-name { font-size: 1.15rem; font-weight: 700; margin-bottom: var(--ds-s-1); }
.ds-pricing-tagline { font-size: var(--ds-fs-small); color: var(--ds-text-3); margin-bottom: var(--ds-s-5); min-height: 2.6em; }
.ds-pricing-price {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--ds-s-1);
  font-variant-numeric: tabular-nums;
}
.ds-pricing-price .ds-price-note { font-size: var(--ds-fs-small); font-weight: 500; color: var(--ds-text-3); letter-spacing: 0; }
.ds-pricing-period { font-size: var(--ds-fs-small); color: var(--ds-text-3); margin-bottom: var(--ds-s-5); }
.ds-pricing-includes {
  font-size: var(--ds-fs-caption);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ds-text-3);
  margin-bottom: var(--ds-s-3);
}
.ds-pricing-card .ds-feature-list { margin-bottom: var(--ds-s-6); }
.ds-pricing-card .ds-btn { margin-top: auto; }

/* =====================================================================
   14. COMPARISON TABLE
   ===================================================================== */
.ds-compare-wrap { overflow-x: auto; border: 1px solid var(--ds-border); border-radius: var(--ds-r-lg); }
.ds-compare {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--ds-fs-small);
  min-width: 640px;
}
.ds-compare th, .ds-compare td {
  padding: 14px 18px;
  text-align: center;
  border-bottom: 1px solid var(--ds-border);
}
.ds-compare th:first-child, .ds-compare td:first-child {
  text-align: left;
  color: var(--ds-text-2);
  font-weight: 500;
  width: 40%;
}
.ds-compare thead th {
  background: var(--ds-bg-elevated);
  font-weight: 700;
  color: var(--ds-text);
  font-size: var(--ds-fs-small);
}
.ds-compare tbody tr:last-child td { border-bottom: none; }
.ds-compare .ds-yes, .ds-compare .ds-no { display: inline-flex; width: 18px; height: 18px; }
.ds-compare .ds-yes { color: var(--ds-success); }
.ds-compare .ds-no  { color: var(--ds-text-3); opacity: 0.5; }
.ds-compare td.ds-group, .ds-compare th.ds-group {
  background: var(--ds-bg-raised);
  font-size: var(--ds-fs-caption);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ds-text-3);
  text-align: left;
}

/* =====================================================================
   15. DATA TABLE (generic)
   ===================================================================== */
.ds-table-wrap { overflow-x: auto; border: 1px solid var(--ds-border); border-radius: var(--ds-r-lg); }
.ds-table { width: 100%; border-collapse: collapse; font-size: var(--ds-fs-small); }
.ds-table th, .ds-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--ds-border); }
.ds-table thead th {
  background: var(--ds-bg-elevated);
  font-weight: 600;
  color: var(--ds-text-2);
  font-size: var(--ds-fs-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ds-table tbody tr:last-child td { border-bottom: none; }
.ds-table tbody tr:hover { background: rgba(255,255,255,0.02); }

/* =====================================================================
   16. FAQ ACCORDION — native <details>, zero JS
   ===================================================================== */
.ds-accordion { display: grid; gap: var(--ds-s-3); }
.ds-accordion details {
  background: var(--ds-bg-raised);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-md);
  overflow: hidden;
}
.ds-accordion summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-s-4);
  padding: 18px 22px;
  font-weight: 600;
  font-size: 0.9875rem;
  color: var(--ds-text);
  transition: color var(--ds-t-fast) var(--ds-ease);
}
.ds-accordion summary::-webkit-details-marker { display: none; }
.ds-accordion summary::after {
  content: '';
  flex-shrink: 0;
  width: 16px; height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A6ABB3' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--ds-t-med) var(--ds-ease);
}
.ds-accordion details[open] summary::after { transform: rotate(180deg); }
.ds-accordion details[open] summary { color: var(--ds-accent); }
.ds-accordion .ds-accordion-body {
  padding: 0 22px 20px;
  color: var(--ds-text-2);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* =====================================================================
   17. FORMS
   ===================================================================== */
.ds-field { display: grid; gap: var(--ds-s-2); margin-bottom: var(--ds-s-4); }
.ds-label { font-size: var(--ds-fs-small); font-weight: 600; color: var(--ds-text); }
.ds-hint  { font-size: var(--ds-fs-caption); color: var(--ds-text-3); }
.ds-error-text { font-size: var(--ds-fs-caption); color: var(--ds-danger); }

.ds-input, .ds-select, .ds-textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--ds-font);
  font-size: var(--ds-fs-body);
  color: var(--ds-text);
  background: var(--ds-bg-elevated);
  border: 1px solid var(--ds-border-strong);
  border-radius: var(--ds-r-sm);
  transition: border-color var(--ds-t-fast) var(--ds-ease), box-shadow var(--ds-t-fast) var(--ds-ease);
}
.ds-input::placeholder, .ds-textarea::placeholder { color: var(--ds-text-3); }
.ds-input:focus, .ds-select:focus, .ds-textarea:focus {
  outline: none;
  border-color: var(--ds-accent);
  box-shadow: 0 0 0 3px var(--ds-accent-soft);
}
.ds-input[aria-invalid="true"], .ds-textarea[aria-invalid="true"] {
  border-color: var(--ds-danger);
}
.ds-textarea { min-height: 120px; resize: vertical; }
.ds-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A6ABB3' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
  padding-right: 40px;
}

.ds-checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--ds-s-3);
  font-size: var(--ds-fs-small);
  color: var(--ds-text-2);
}
.ds-checkbox-row input[type="checkbox"] {
  width: 17px; height: 17px;
  margin-top: 2px;
  accent-color: var(--ds-accent);
}

/* =====================================================================
   18. DIALOG — native <dialog> styled
   ===================================================================== */
.ds-dialog {
  background: var(--ds-bg-elevated);
  color: var(--ds-text);
  border: 1px solid var(--ds-border-strong);
  border-radius: var(--ds-r-lg);
  padding: var(--ds-s-6);
  max-width: 480px;
  width: calc(100vw - 48px);
  box-shadow: var(--ds-shadow-3);
}
.ds-dialog::backdrop { background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }
.ds-dialog h3 { margin-bottom: var(--ds-s-3); }
.ds-dialog p { color: var(--ds-text-2); font-size: 0.9375rem; }
.ds-dialog .ds-btn-row { margin-top: var(--ds-s-5); justify-content: flex-end; }

/* =====================================================================
   19. HERO BLOCKS
   ===================================================================== */
.ds-hero {
  padding: var(--ds-s-9) 0 var(--ds-s-8);
  position: relative;
  overflow: hidden;
}
/* One restrained ambient gradient. No animation, no particles. */
.ds-hero::before {
  content: '';
  position: absolute;
  top: -30%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(closest-side, rgba(247,147,26,0.07), transparent);
  pointer-events: none;
}
.ds-hero > .ds-container, .ds-hero > .ds-container-narrow { position: relative; }
.ds-hero-center { text-align: center; }
.ds-hero h1 {
  font-size: var(--ds-fs-display);
  font-family: var(--ds-font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.08;
  max-width: 820px;
  margin: 0 auto var(--ds-s-5);
}
.ds-hero:not(.ds-hero-center) h1 { margin-left: 0; }
.ds-hero .ds-lead { margin: 0 auto var(--ds-s-6); }
.ds-hero:not(.ds-hero-center) .ds-lead { margin-left: 0; }
.ds-hero .ds-btn-row { justify-content: center; margin-bottom: var(--ds-s-6); }
.ds-hero:not(.ds-hero-center) .ds-btn-row { justify-content: flex-start; }

/* Page hero — smaller, for inner pages */
.ds-page-hero { padding: var(--ds-s-8) 0 var(--ds-s-7); }
.ds-page-hero h1 { margin-bottom: var(--ds-s-4); }
.ds-page-hero .ds-lead { margin-bottom: 0; }

/* =====================================================================
   20. STORE BADGES — App Store / Google Play placeholders
   ===================================================================== */
.ds-store-badges { display: flex; gap: var(--ds-s-3); flex-wrap: wrap; }
.ds-store-badges.ds-center { justify-content: center; }
.ds-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: var(--ds-r-md);
  border: 1px solid var(--ds-border-strong);
  background: var(--ds-bg-elevated);
  color: var(--ds-text) !important;
  text-decoration: none !important;
  transition: border-color var(--ds-t-fast) var(--ds-ease), background var(--ds-t-fast) var(--ds-ease);
}
.ds-store-badge:hover { border-color: var(--ds-accent-border); background: var(--ds-bg-raised); }
.ds-store-badge svg { width: 22px; height: 22px; }
.ds-store-badge-text { display: flex; flex-direction: column; line-height: 1.15; text-align: left; }
.ds-store-badge-text small { font-size: 0.66rem; color: var(--ds-text-3); letter-spacing: 0.04em; text-transform: uppercase; font-weight: 600; }
.ds-store-badge-text span { font-size: 0.9375rem; font-weight: 600; }

/* =====================================================================
   21. HEADER / GLOBAL NAVIGATION
   Used by partials/platform-header.html. Element IDs (navToggle,
   navLogin, navSignOut, navAppMenu) are contracts with partials-loader.js.
   ===================================================================== */
.ds header.ds-header, body.ds > header, .ds-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--ds-header-h);
  z-index: 1000;
  background: var(--ds-bg-overlay);
  border-bottom: 1px solid var(--ds-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.ds-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-s-4);
  height: var(--ds-header-h);
}
.ds-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none !important;
}
.ds-logo img { height: 34px; width: auto; max-width: 150px; display: block; object-fit: contain; }

.ds-nav { display: flex; align-items: center; gap: 4px; }
.ds-nav a, .ds-nav .ds-nav-link {
  color: var(--ds-text-2);
  text-decoration: none !important;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: var(--ds-r-sm);
  transition: color var(--ds-t-fast) var(--ds-ease), background var(--ds-t-fast) var(--ds-ease);
  white-space: nowrap;
}
.ds-nav a:hover { color: var(--ds-text); background: rgba(255,255,255,0.05); }
.ds-nav a.active { color: var(--ds-accent); background: var(--ds-accent-soft); }

/* Header action buttons (Login / Download App) */
.ds-nav .ds-nav-cta {
  padding: 8px 16px;
  border-radius: var(--ds-r-pill);
  border: 1px solid var(--ds-border-strong);
  background: rgba(255,255,255,0.04);
  color: var(--ds-text);
  font-weight: 600;
  font-size: 0.875rem;
  margin-left: 4px;
}
.ds-nav .ds-nav-cta:hover { background: rgba(255,255,255,0.09); color: var(--ds-text); }
.ds-nav .ds-nav-cta.ds-primary {
  background: var(--ds-accent);
  border-color: transparent;
  color: var(--ds-on-accent);
}
.ds-nav .ds-nav-cta.ds-primary:hover { background: var(--ds-accent-hover); color: var(--ds-on-accent); }

/* Sign-out button (auth-aware, toggled by partials-loader) */
.ds-nav .ds-nav-signout {
  font-family: var(--ds-font);
  cursor: pointer;
  background: none;
  border: 1px solid var(--ds-border-strong);
  color: var(--ds-text-2);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--ds-r-sm);
  transition: border-color var(--ds-t-fast) var(--ds-ease), color var(--ds-t-fast) var(--ds-ease);
}
.ds-nav .ds-nav-signout:hover { border-color: var(--ds-accent-border); color: var(--ds-accent); }

/* Mobile toggle */
.ds-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--ds-text);
}

@media (max-width: 900px) {
  .ds-nav { display: none; }
  .ds-nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: var(--ds-header-h);
    left: 0; right: 0;
    background: rgba(11,12,14,0.98);
    border-bottom: 1px solid var(--ds-border);
    padding: var(--ds-s-4) var(--ds-gutter) var(--ds-s-5);
    gap: var(--ds-s-2);
    backdrop-filter: blur(16px);
  }
  .ds-nav.open a, .ds-nav.open .ds-nav-cta { width: 100%; text-align: left; margin-left: 0; }
  .ds-nav-toggle { display: block; }
}

/* =====================================================================
   22. FOOTER
   ===================================================================== */
.ds-footer {
  margin-top: var(--ds-s-9);
  border-top: 1px solid var(--ds-border);
  padding: var(--ds-s-8) 0 var(--ds-s-6);
  background: var(--ds-bg);
}
.ds-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--ds-s-7);
  align-items: start;
}
.ds-footer-brand p {
  color: var(--ds-text-3);
  margin-top: var(--ds-s-4);
  font-size: var(--ds-fs-small);
  max-width: 300px;
  line-height: 1.7;
}
.ds-footer h4 {
  font-size: var(--ds-fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ds-text-3);
  margin: 0 0 var(--ds-s-4);
}
.ds-footer-col a {
  display: block;
  color: var(--ds-text-2);
  text-decoration: none !important;
  font-size: var(--ds-fs-small);
  margin-bottom: var(--ds-s-3);
  transition: color var(--ds-t-fast) var(--ds-ease);
}
.ds-footer-col a:hover { color: var(--ds-text); }
.ds-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--ds-s-4);
  flex-wrap: wrap;
  margin-top: var(--ds-s-7);
  padding-top: var(--ds-s-5);
  border-top: 1px solid var(--ds-border);
  color: var(--ds-text-3);
  font-size: var(--ds-fs-caption);
}
.ds-footer-bottom a { color: var(--ds-text-3); text-decoration: none !important; }
.ds-footer-bottom a:hover { color: var(--ds-text-2); }
.ds-footer-legal { display: flex; gap: var(--ds-s-5); }

@media (max-width: 900px) { .ds-footer-grid { grid-template-columns: 1fr 1fr; gap: var(--ds-s-6); } }
@media (max-width: 560px) { .ds-footer-grid { grid-template-columns: 1fr; } }

/* =====================================================================
   23. MOTION — single, restrained entrance (respects reduced motion)
   ===================================================================== */
@keyframes ds-fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ds-animate { animation: ds-fade-up 0.5s var(--ds-ease) both; }
.ds-animate-1 { animation-delay: 80ms; }
.ds-animate-2 { animation-delay: 160ms; }
.ds-animate-3 { animation-delay: 240ms; }