/* ============================================================
   AY PARTNERS — Design System
   Token-first architecture using CSS custom properties.
   All component styles consume tokens — never hard-coded values.
   ============================================================ */

/* ------------------------------------------------------------
   1. GOOGLE FONTS IMPORT
   Headings : DM Serif Display — editorial, confident, earned authority
   Body      : Inter          — maximum legibility, modern, neutral
   ------------------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600;700&display=swap');


/* ============================================================
   2. COLOR TOKENS
   ============================================================

   Philosophy:
   • Navy    → Trust, depth, stability  (primary brand)
   • Teal    → Innovation, clarity, momentum (accent / CTAs)
   • Sage    → Growth, balance, forward motion (supporting accent)
   • Neutral → Structure, whitespace, typography
   • Surface → Background layers, elevated cards

   Naming convention: --color-{family}-{shade}
   Shade scale: 50 (lightest) → 950 (darkest)
   ============================================================ */

:root {

  /* --- Slate (Primary) — Trust, depth, stability ------------ */
  --color-navy-50:  #F0F1F4;
  --color-navy-100: #D8DAE3;
  --color-navy-200: #B1B5C7;
  --color-navy-300: #8A8FAA;
  --color-navy-400: #636A8E;
  --color-navy-500: #454B6E;
  --color-navy-600: #363B58;
  --color-navy-700: #2B3040;   /* ← Primary brand slate */
  --color-navy-800: #1E2130;
  --color-navy-900: #111420;
  --color-navy-950: #080910;

  /* --- Amber (Innovation / CTA accent) ---------------------- */
  --color-teal-50:  #FFFBEB;
  --color-teal-100: #FEF3C7;
  --color-teal-200: #FDE68A;
  --color-teal-300: #FCD34D;
  --color-teal-400: #FBBF24;
  --color-teal-500: #F59E0B;   /* ← Primary accent / CTA */
  --color-teal-600: #D97706;
  --color-teal-700: #B45309;
  --color-teal-800: #92400E;
  --color-teal-900: #78350F;

  /* --- Terracotta (Collaboration / supporting accent) -------- */
  --color-sage-50:  #FBF0EE;
  --color-sage-100: #F5D8D3;
  --color-sage-200: #EBB0A7;
  --color-sage-300: #DF887A;
  --color-sage-400: #D3604D;
  --color-sage-500: #C1694F;   /* ← Supporting accent */
  --color-sage-600: #A3503A;
  --color-sage-700: #7E3D2C;
  --color-sage-800: #5A2B1F;
  --color-sage-900: #391A12;

  /* --- Neutral (Text / UI structure) ------------------------ */
  --color-neutral-0:   #FFFFFF;
  --color-neutral-50:  #FAF8F3;   /* ← Warm ivory (page bg) */
  --color-neutral-100: #F0EFE9;
  --color-neutral-200: #E2E0D8;
  --color-neutral-300: #C8C5BA;
  --color-neutral-400: #A8A49A;
  --color-neutral-500: #7E7A72;
  --color-neutral-600: #5C5852;
  --color-neutral-700: #3D3A35;
  --color-neutral-800: #28251F;
  --color-neutral-900: #16140F;
  --color-neutral-950: #0A0906;

  /* --- Semantic surface layers ------------------------------ */
  --color-surface-page:     var(--color-neutral-50);   /* warm off-white bg */
  --color-surface-raised:   var(--color-neutral-0);    /* card / modal bg */
  --color-surface-sunken:   var(--color-neutral-100);  /* input / inset bg */
  --color-surface-overlay:  rgba(17, 20, 32, 0.55);    /* modal scrim */
  --color-surface-dark:     var(--color-navy-800);     /* dark sections */
  --color-surface-dark-alt: var(--color-navy-700);     /* dark section variant */


  /* ============================================================
     3. SEMANTIC COLOR TOKENS
     Map palette tokens to roles. Change palette → everything updates.
     ============================================================ */

  /* Brand */
  --brand-primary:          var(--color-navy-700);
  --brand-primary-hover:    var(--color-navy-800);
  --brand-primary-subtle:   var(--color-navy-50);
  --brand-accent:           var(--color-teal-500);
  --brand-accent-hover:     var(--color-teal-600);
  --brand-accent-subtle:    var(--color-teal-50);
  --brand-growth:           var(--color-sage-500);
  --brand-growth-subtle:    var(--color-sage-50);

  /* Text */
  --text-primary:           var(--color-navy-900);
  --text-secondary:         var(--color-neutral-600);
  --text-tertiary:          var(--color-neutral-400);
  --text-disabled:          var(--color-neutral-300);
  --text-inverse:           var(--color-neutral-0);
  --text-accent:            var(--color-teal-600);
  --text-on-dark:           var(--color-neutral-0);
  --text-on-dark-muted:     var(--color-navy-200);

  /* Border */
  --border-subtle:          var(--color-neutral-200);
  --border-default:         var(--color-neutral-300);
  --border-strong:          var(--color-neutral-500);
  --border-accent:          var(--color-teal-400);
  --border-focus:           var(--color-teal-500);

  /* Feedback */
  --color-success:          #22A56E;
  --color-warning:          #D97706;
  --color-error:            #DC3545;
  --color-info:             var(--color-teal-500);


  /* ============================================================
     4. TYPOGRAPHY TOKENS
     ============================================================ */

  /* Families */
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'SF Mono', 'Fira Code', monospace;

  /* Scale — Major Third (1.25×) with optical adjustments */
  --text-xs:   0.75rem;     /*  12px */
  --text-sm:   0.875rem;    /*  14px */
  --text-base: 1rem;        /*  16px */
  --text-lg:   1.125rem;    /*  18px */
  --text-xl:   1.25rem;     /*  20px */
  --text-2xl:  1.5rem;      /*  24px */
  --text-3xl:  1.875rem;    /*  30px */
  --text-4xl:  2.25rem;     /*  36px */
  --text-5xl:  3rem;        /*  48px */
  --text-6xl:  3.75rem;     /*  60px */
  --text-7xl:  4.5rem;      /*  72px */

  /* Fluid display size (clamps between viewport widths) */
  --text-display: clamp(2.75rem, 5.5vw + 0.5rem, 5rem);
  --text-hero:    clamp(3.25rem, 7vw + 0.5rem, 6.5rem);

  /* Weights */
  --font-light:    300;
  --font-regular:  400;
  --font-medium:   500;
  --font-semibold: 600;
  --font-bold:     700;

  /* Leading (line-height) */
  --leading-none:    1;
  --leading-tight:   1.15;
  --leading-snug:    1.3;
  --leading-normal:  1.5;
  --leading-relaxed: 1.65;
  --leading-loose:   1.8;

  /* Tracking (letter-spacing) */
  --tracking-tighter: -0.04em;
  --tracking-tight:   -0.02em;
  --tracking-normal:   0em;
  --tracking-wide:     0.04em;
  --tracking-wider:    0.08em;
  --tracking-widest:   0.12em;


  /* ============================================================
     5. SPACING TOKENS  (4px base grid)
     ============================================================ */
  --space-0:    0;
  --space-px:   1px;
  --space-0-5:  0.125rem;   /*  2px */
  --space-1:    0.25rem;    /*  4px */
  --space-1-5:  0.375rem;   /*  6px */
  --space-2:    0.5rem;     /*  8px */
  --space-2-5:  0.625rem;   /* 10px */
  --space-3:    0.75rem;    /* 12px */
  --space-4:    1rem;       /* 16px */
  --space-5:    1.25rem;    /* 20px */
  --space-6:    1.5rem;     /* 24px */
  --space-7:    1.75rem;    /* 28px */
  --space-8:    2rem;       /* 32px */
  --space-10:   2.5rem;     /* 40px */
  --space-12:   3rem;       /* 48px */
  --space-14:   3.5rem;     /* 56px */
  --space-16:   4rem;       /* 64px */
  --space-20:   5rem;       /* 80px */
  --space-24:   6rem;       /* 96px */
  --space-28:   7rem;       /* 112px */
  --space-32:   8rem;       /* 128px */

  /* Section rhythm */
  --section-gap:     clamp(var(--space-16), 8vw, var(--space-32));
  --container-pad:   clamp(var(--space-4), 5vw, var(--space-16));


  /* ============================================================
     6. BORDER RADIUS TOKENS
     ============================================================ */
  --radius-none:   0;
  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     12px;
  --radius-xl:     16px;
  --radius-2xl:    24px;
  --radius-3xl:    32px;
  --radius-full:   9999px;

  /* Component aliases */
  --radius-btn:    var(--radius-md);
  --radius-card:   var(--radius-xl);
  --radius-badge:  var(--radius-full);
  --radius-input:  var(--radius-md);


  /* ============================================================
     7. SHADOW TOKENS
     Layered shadows for natural depth perception.
     ============================================================ */
  --shadow-xs:
    0 1px 2px rgba(17, 20, 32, 0.05);

  --shadow-sm:
    0 1px 2px rgba(17, 20, 32, 0.04),
    0 2px 6px rgba(17, 20, 32, 0.06);

  --shadow-md:
    0 2px 4px rgba(17, 20, 32, 0.04),
    0 4px 12px rgba(17, 20, 32, 0.08),
    0 8px 24px rgba(17, 20, 32, 0.04);

  --shadow-lg:
    0 4px 6px rgba(17, 20, 32, 0.04),
    0 8px 24px rgba(17, 20, 32, 0.10),
    0 16px 48px rgba(17, 20, 32, 0.06);

  --shadow-xl:
    0 8px 16px rgba(17, 20, 32, 0.06),
    0 16px 40px rgba(17, 20, 32, 0.12),
    0 32px 80px rgba(17, 20, 32, 0.08);

  --shadow-card:        var(--shadow-md);
  --shadow-card-hover:  var(--shadow-lg);
  --shadow-btn:         0 1px 3px rgba(17, 20, 32, 0.12), 0 2px 8px rgba(17, 20, 32, 0.08);
  --shadow-btn-hover:   0 2px 6px rgba(17, 20, 32, 0.14), 0 4px 14px rgba(17, 20, 32, 0.10);

  /* Teal glow — for accent button / focus ring */
  --shadow-accent-glow:
    0 0 0 3px rgba(245, 158, 11, 0.25);
  --shadow-focus:
    0 0 0 3px rgba(245, 158, 11, 0.35);


  /* ============================================================
     8. TRANSITION TOKENS
     ============================================================ */
  --duration-instant: 80ms;
  --duration-fast:    150ms;
  --duration-base:    220ms;
  --duration-slow:    350ms;
  --duration-slower:  500ms;

  --ease-default:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:       cubic-bezier(0.4, 0, 1, 1);
  --ease-out:      cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);

  --transition-base:
    all var(--duration-base) var(--ease-default);
  --transition-color:
    color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
  --transition-transform:
    transform var(--duration-base) var(--ease-spring);
  --transition-shadow:
    box-shadow var(--duration-base) var(--ease-out);


  /* ============================================================
     9. Z-INDEX SCALE
     ============================================================ */
  --z-below:   -1;
  --z-base:     0;
  --z-raised:   10;
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-overlay:  300;
  --z-modal:    400;
  --z-toast:    500;
  --z-tooltip:  600;


  /* ============================================================
     10. LAYOUT TOKENS
     ============================================================ */
  --container-xs:  480px;
  --container-sm:  640px;
  --container-md:  768px;
  --container-lg:  1024px;
  --container-xl:  1280px;
  --container-2xl: 1440px;
  --container-max: var(--container-xl);
}


/* ============================================================
   11. BASE / RESET
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  background-color: var(--color-surface-page);
}

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--text-accent);
  text-decoration: none;
  transition: var(--transition-color);
}
a:hover { color: var(--brand-accent-hover); }


/* ============================================================
   12. TYPOGRAPHY STYLES
   ============================================================ */

/* Headings — DM Serif Display */
h1, h2, h3, h4, h5, h6,
.heading-1, .heading-2, .heading-3,
.heading-4, .heading-5, .heading-6 {
  font-family: var(--font-heading);
  font-weight: var(--font-regular);  /* DM Serif is elegant at regular weight */
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

h1, .heading-1 {
  font-size: var(--text-display);
  letter-spacing: var(--tracking-tighter);
}
h2, .heading-2 { font-size: var(--text-5xl); }
h3, .heading-3 { font-size: var(--text-4xl); }
h4, .heading-4 { font-size: var(--text-3xl); }
h5, .heading-5 { font-size: var(--text-2xl); }
h6, .heading-6 { font-size: var(--text-xl); }

/* Hero display — for above-the-fold headlines */
.text-hero {
  font-family: var(--font-heading);
  font-size: var(--text-hero);
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-tighter);
}

/* Eyebrow — small label above a heading */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--brand-accent);
}

/* Body variants */
.body-lg   { font-size: var(--text-lg); line-height: var(--leading-relaxed); }
.body-base { font-size: var(--text-base); line-height: var(--leading-relaxed); }
.body-sm   { font-size: var(--text-sm); line-height: var(--leading-normal); }

/* Lead paragraph — for intro/lede copy */
.lead {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  font-weight: var(--font-light);
  max-width: 60ch;
}

/* Stat / metric callout */
.stat-value {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-tighter);
  color: var(--brand-primary);
}
.stat-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

/* Italic accent — DM Serif Display has a beautiful italic */
.italic-accent {
  font-style: italic;
  color: var(--brand-accent);
}


/* ============================================================
   13. LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-gap);
}

.section--dark {
  background-color: var(--color-surface-dark);
  color: var(--text-on-dark);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--text-on-dark);
}
.section--dark p,
.section--dark .lead {
  color: var(--text-on-dark-muted);
}
.section--dark .eyebrow {
  color: var(--color-teal-300);
}

.section--tinted {
  background-color: var(--color-navy-50);
}

/* Grid helpers */
.grid-auto-fill {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: var(--space-8);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack {
  display: flex;
  flex-direction: column;
}
.stack--sm  { gap: var(--space-2); }
.stack--md  { gap: var(--space-4); }
.stack--lg  { gap: var(--space-8); }
.stack--xl  { gap: var(--space-16); }


/* ============================================================
   14. BUTTON COMPONENTS
   ============================================================ */

/* Base button — shared structure */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-btn);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    color            var(--duration-fast) var(--ease-out),
    border-color     var(--duration-fast) var(--ease-out),
    box-shadow       var(--duration-base) var(--ease-out),
    transform        var(--duration-base) var(--ease-spring);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn:active {
  transform: translateY(1px);
}

/* --- Primary: Navy fill ------------------------------------ */
.btn--primary {
  background-color: var(--brand-primary);
  color: var(--color-neutral-0);
  box-shadow: var(--shadow-btn);
}
.btn--primary:hover {
  background-color: var(--brand-primary-hover);
  color: var(--color-neutral-0);
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-1px);
}

/* --- Accent: Amber fill (main CTA) — dark text for contrast */
.btn--accent {
  background-color: var(--brand-accent);
  color: var(--color-navy-900);
  box-shadow: var(--shadow-btn);
}
.btn--accent:hover {
  background-color: var(--brand-accent-hover);
  color: var(--color-neutral-0);
  box-shadow: var(--shadow-btn-hover), var(--shadow-accent-glow);
  transform: translateY(-1px);
}

/* --- Outline Navy ------------------------------------------ */
.btn--outline {
  background-color: transparent;
  color: var(--brand-primary);
  border-color: var(--brand-primary);
}
.btn--outline:hover {
  background-color: var(--brand-primary);
  color: var(--color-neutral-0);
  transform: translateY(-1px);
}

/* --- Outline Accent ---------------------------------------- */
.btn--outline-accent {
  background-color: transparent;
  color: var(--brand-accent);
  border-color: var(--brand-accent);
}
.btn--outline-accent:hover {
  background-color: var(--brand-accent);
  color: var(--color-navy-900);
  transform: translateY(-1px);
}

/* --- Ghost (text-only, subtle hover) ---------------------- */
.btn--ghost {
  background-color: transparent;
  color: var(--brand-primary);
  border-color: transparent;
  padding-inline: var(--space-3);
}
.btn--ghost:hover {
  background-color: var(--brand-primary-subtle);
  color: var(--brand-primary);
}

/* --- Inverse (for dark section backgrounds) --------------- */
.btn--inverse {
  background-color: var(--color-neutral-0);
  color: var(--brand-primary);
  box-shadow: var(--shadow-btn);
}
.btn--inverse:hover {
  background-color: var(--color-navy-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-btn-hover);
}

/* --- Sizes ------------------------------------------------- */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}
.btn--xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
}
.btn--full {
  width: 100%;
}

/* --- With trailing arrow icon ----------------------------- */
.btn--arrow::after {
  content: '→';
  font-size: 1.1em;
  transition: transform var(--duration-base) var(--ease-spring);
}
.btn--arrow:hover::after {
  transform: translateX(3px);
}

/* --- Disabled state --------------------------------------- */
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}


/* ============================================================
   15. CARD COMPONENTS
   ============================================================ */

/* Base card — shared structure */
.card {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: var(--space-8);
  transition:
    box-shadow   var(--duration-base) var(--ease-out),
    transform    var(--duration-base) var(--ease-spring),
    border-color var(--duration-base) var(--ease-out);
}

/* --- Default card: subtle lift on hover ------------------- */
.card--default {
  box-shadow: var(--shadow-sm);
}
.card--default:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  border-color: var(--border-default);
}

/* --- Feature card: stronger presence ---------------------- */
.card--feature {
  box-shadow: var(--shadow-card);
  border-color: var(--border-subtle);
}
.card--feature:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--border-accent);
}

/* --- Stat card: metric highlight -------------------------- */
.card--stat {
  background: linear-gradient(
    145deg,
    var(--color-navy-700) 0%,
    var(--color-navy-800) 100%
  );
  border-color: var(--color-navy-600);
  color: var(--text-on-dark);
  box-shadow: var(--shadow-md);
  padding: var(--space-10);
  text-align: center;
}
.card--stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.card--stat .stat-value { color: var(--color-neutral-0); }
.card--stat .stat-label { color: var(--color-navy-200); }

/* --- Service card: left accent border --------------------- */
.card--service {
  border-left: 3px solid var(--brand-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-8);
}
.card--service:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  border-left-color: var(--brand-primary);
}
.card--service .card__icon {
  color: var(--brand-accent);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}
.card--service h3 { font-size: var(--text-2xl); }

/* --- Case study card: image + content layout -------------- */
.card--case-study {
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.card--case-study:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}
.card--case-study .card__image {
  aspect-ratio: 16 / 9;
  background-color: var(--color-navy-100);
  overflow: hidden;
}
.card--case-study .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}
.card--case-study:hover .card__image img {
  transform: scale(1.04);
}
.card--case-study .card__body {
  padding: var(--space-6) var(--space-8);
}
.card--case-study .card__metric {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--brand-accent);
  line-height: 1;
  margin-bottom: var(--space-1);
}

/* --- Testimonial card ------------------------------------- */
.card--testimonial {
  box-shadow: var(--shadow-sm);
  padding: var(--space-10);
  position: relative;
}
.card--testimonial::before {
  content: '\201C';
  font-family: var(--font-heading);
  font-size: 5rem;
  line-height: 0.8;
  color: var(--brand-accent);
  opacity: 0.25;
  position: absolute;
  top: var(--space-4);
  left: var(--space-6);
}
.card--testimonial blockquote {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  font-style: italic;
  margin-bottom: var(--space-6);
  position: relative;
}
.card--testimonial .attribution {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  letter-spacing: var(--tracking-wide);
}

/* --- Card subcomponents ----------------------------------- */
.card__eyebrow  { margin-bottom: var(--space-2); }
.card__title    { margin-bottom: var(--space-3); }
.card__body-text {
  color: var(--text-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}
.card__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}


/* ============================================================
   16. BADGE / TAG COMPONENT
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-badge);
  line-height: 1;
}

.badge--primary  { background: var(--color-navy-100);       color: var(--color-navy-700); }
.badge--accent   { background: var(--color-teal-100);       color: var(--color-teal-700); }
.badge--growth   { background: var(--color-sage-100);       color: var(--color-sage-700); }
.badge--neutral  { background: var(--color-neutral-100);    color: var(--color-neutral-700); }
.badge--inverse  { background: rgba(255,255,255,0.15);      color: var(--color-neutral-0); }


/* ============================================================
   17. FORM ELEMENTS
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  letter-spacing: var(--tracking-wide);
}

.form-input,
.form-textarea,
.form-select {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--color-surface-raised);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-input);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  transition:
    border-color var(--duration-fast) var(--ease-out),
    box-shadow   var(--duration-fast) var(--ease-out);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--border-strong);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}


/* ============================================================
   18. LOGO BAR / CREDIBILITY STRIP
   ============================================================ */
.logo-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-10);
  padding-block: var(--space-8);
}

.logo-bar__label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-tertiary);
  text-align: center;
  margin-bottom: var(--space-4);
}

.logo-bar__item {
  opacity: 0.4;
  filter: grayscale(100%);
  transition:
    opacity  var(--duration-base) var(--ease-out),
    filter   var(--duration-base) var(--ease-out);
}
.logo-bar__item:hover {
  opacity: 0.8;
  filter: grayscale(0%);
}


/* ============================================================
   19. DIVIDER
   ============================================================ */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin-block: var(--space-8);
}

.divider--accent {
  border-top: 2px solid var(--brand-accent);
  width: 48px;
  margin-inline: 0;
}


/* ============================================================
   20. NAVIGATION
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(249, 248, 245, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow var(--duration-base) var(--ease-out);
}

.nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--text-primary);
}


/* ============================================================
   21. FOOTER
   ============================================================ */
.footer {
  background-color: var(--color-navy-900);
  color: var(--text-on-dark-muted);
  padding-block: var(--space-20) var(--space-12);
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-neutral-0);
  margin-bottom: var(--space-2);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-navy-300);
  margin-bottom: var(--space-8);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-navy-300);
  transition: color var(--duration-fast) var(--ease-out);
}
.footer__link:hover { color: var(--color-neutral-0); }

.footer__divider {
  border-top: 1px solid var(--color-navy-700);
  margin-block: var(--space-10);
}

.footer__legal {
  font-size: var(--text-xs);
  color: var(--color-navy-500);
}


/* ============================================================
   22. UTILITY CLASSES
   ============================================================ */

/* Text color shortcuts */
.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-tertiary); }
.text-accent    { color: var(--brand-accent); }
.text-inverse   { color: var(--text-inverse); }

/* Alignment */
.text-left    { text-align: left; }
.text-center  { text-align: center; }
.text-right   { text-align: right; }

/* Max-width copy containers */
.prose    { max-width: 65ch; }
.prose-sm { max-width: 50ch; }

/* Spacing utilities */
.mt-auto { margin-top: auto; }
.mx-auto { margin-inline: auto; }

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   23. RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Mobile-first. Breakpoints align with container tokens. */

@media (max-width: 640px) {
  :root {
    --container-pad: var(--space-5);
    --section-gap:   var(--space-14);
  }
  .hide-mobile { display: none; }
}

@media (min-width: 641px) and (max-width: 1024px) {
  :root { --container-pad: var(--space-8); }
  .hide-tablet { display: none; }
}

@media (min-width: 1025px) {
  .hide-desktop { display: none; }
}

/* Reduced motion — respect user preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}