/* ============================================================================
 * FutureState Design System — Colors & Type
 * ============================================================================
 * Primary brand: Navy #192855  (deep, trustworthy, "FutureState")
 * Secondary:     Cyan #09D0EA  (energetic accent, "State" wordmark, diamond)
 * Accent / surface: White #FFFFFF
 *
 * Sub-brand accents (FutureState Solutions):
 *   CardPulse  → Green  #43A047
 *   BalanceU   → Orange #EF6C00 / Gold
 *   CardSync   → Red    #E53935
 *   RollCall   → Purple #7C4DFF
 *
 * Typography: Inter (CDN substitute for FutureState's bespoke font – see README)
 * with a Roboto fallback (matches the app's runtime webfontloader).
 * ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Roboto:wght@300;400;500;700;900&display=swap');

:root {
  /* ---------- BRAND PALETTE ---------- */
  --fs-navy:        #192855;   /* primary */
  --fs-navy-deep:   #0C234B;   /* fsbutton.blue */
  --fs-navy-700:    #1E5288;   /* scrollbar accent / mid-navy */
  --fs-cyan:        #09D0EA;   /* secondary, "State" */
  --fs-cyan-soft:   #5FE0F2;   /* hover / glow */
  --fs-cyan-tint:   #E5FBFE;   /* surface tint */
  --fs-white:       #FFFFFF;
  --fs-paper:       #FAFAFA;
  --fs-ink:         #0F1A36;   /* text on light */

  /* ---------- SUB-BRANDS ---------- */
  --cp-green:       #43A047;   /* CardPulse */
  --cp-green-deep:  #2E7D32;
  --bu-orange:      #EF6C00;   /* BalanceU */
  --bu-gold:        #F5B400;
  --cs-red:         #E53935;   /* CardSync */
  --cs-red-deep:    #8B0015;   /* fsbutton.red */
  --rc-purple:      #7C4DFF;   /* RollCall */

  /* ---------- NEUTRALS ---------- */
  --neutral-50:   #FAFAFA;
  --neutral-100:  #F4F6F9;
  --neutral-200:  #DDE5ED;     /* scrollbar track */
  --neutral-300:  #C8D1DC;
  --neutral-400:  #94A3B8;
  --neutral-500:  #64748B;
  --neutral-600:  #475569;
  --neutral-700:  #334155;
  --neutral-800:  #1E293B;
  --neutral-900:  #0F1A36;

  /* ---------- SEMANTIC (LIGHT) ---------- */
  --bg:            var(--fs-paper);
  --surface:       var(--fs-white);
  --surface-soft:  var(--neutral-100);
  --surface-mute:  var(--neutral-200);

  --fg-1:          var(--fs-ink);              /* primary text */
  --fg-2:          var(--neutral-600);         /* secondary text */
  --fg-3:          var(--neutral-500);         /* tertiary / captions */
  --fg-on-primary: var(--fs-white);

  --primary:       var(--fs-navy);
  --primary-hover: #11204A;
  --primary-soft:  rgba(25, 40, 85, 0.08);

  --secondary:     var(--fs-cyan);
  --secondary-hover: #07B7CF;

  --border:        rgba(25, 40, 85, 0.14);
  --border-strong: rgba(25, 40, 85, 0.28);
  --border-faint:  rgba(25, 40, 85, 0.06);

  --success:       #2E7D32;
  --warning:       #F57C00;
  --error:         #C62828;
  --info:          #0288D1;

  /* ---------- ELEVATION ---------- */
  --shadow-1: 0 1px 2px rgba(15, 26, 54, 0.06), 0 1px 1px rgba(15, 26, 54, 0.04);
  --shadow-2: 0 2px 6px rgba(15, 26, 54, 0.08), 0 1px 2px rgba(15, 26, 54, 0.05);
  --shadow-3: 0 6px 16px rgba(15, 26, 54, 0.10), 0 2px 4px rgba(15, 26, 54, 0.06);
  --shadow-4: 0 12px 28px rgba(15, 26, 54, 0.14), 0 4px 8px rgba(15, 26, 54, 0.06);
  --shadow-5: 0 20px 50px rgba(15, 26, 54, 0.22);
  --shadow-glow: 0 0 0 1px rgba(9, 208, 234, 0.35), 0 0 18px rgba(9, 208, 234, 0.18);
  --shadow-rise: 0 4px 8px rgba(0, 0, 0, 0.10);

  /* ---------- RADII ---------- */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;     /* Vuetify "lg" */
  --radius-lg: 18px;     /* Vuetify "xl" */
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* ---------- SPACING (4pt grid) ---------- */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* ---------- MOTION ---------- */
  --ease-out:   cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:   150ms;
  --dur-base:   220ms;
  --dur-slow:   320ms;

  /* ---------- TYPOGRAPHY ---------- */
  --font-display: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body:    'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, 'JetBrains Mono', Menlo, Consolas, monospace;

  /* type scale (modular) */
  --fs-display:  64px;
  --fs-h1:       48px;
  --fs-h2:       36px;
  --fs-h3:       28px;
  --fs-h4:       22px;
  --fs-h5:       18px;
  --fs-body-lg:  17px;
  --fs-body:     15px;
  --fs-body-sm:  13px;
  --fs-caption:  12px;
  --fs-overline: 11px;

  --lh-tight:  1.1;
  --lh-snug:   1.25;
  --lh-base:   1.5;
  --lh-loose:  1.7;

  --tracking-tight:  -0.02em;
  --tracking-snug:   -0.005em;
  --tracking-normal:  0;
  --tracking-wide:    0.04em;
  --tracking-overline: 0.12em;
}

/* ---------- DARK THEME ---------- */
[data-theme="dark"], .theme-dark {
  --bg:            #0B1430;
  --surface:       #131D3F;
  --surface-soft:  #182550;
  --surface-mute:  #1F2C5C;

  --fg-1:          #F5F8FF;
  --fg-2:          rgba(245, 248, 255, 0.72);
  --fg-3:          rgba(245, 248, 255, 0.52);
  --fg-on-primary: #0B1430;

  --primary:       var(--fs-cyan);
  --primary-hover: var(--fs-cyan-soft);
  --primary-soft:  rgba(9, 208, 234, 0.14);

  --border:        rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.22);
  --border-faint:  rgba(255, 255, 255, 0.05);

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.40);
  --shadow-2: 0 2px 6px rgba(0, 0, 0, 0.45);
  --shadow-3: 0 8px 18px rgba(0, 0, 0, 0.50);
  --shadow-4: 0 14px 32px rgba(0, 0, 0, 0.55);
  --shadow-5: 0 24px 60px rgba(0, 0, 0, 0.65);
}

/* ============================================================================
 * SEMANTIC TYPE — apply to bare HTML elements
 * ============================================================================ */
html, body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-base);
  color: var(--fg-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 300;          /* hero — light weight, like About page */
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--fg-1);
  margin: 0 0 var(--space-4);
}
h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
  color: var(--fg-1);
  margin: 0 0 var(--space-3);
}
h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
  color: var(--fg-1);
  margin: 0 0 var(--space-3);
}
h4, .h4 {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 500;
  line-height: var(--lh-snug);
  color: var(--fg-1);
  margin: 0 0 var(--space-2);
}
h5, .h5 {
  font-family: var(--font-display);
  font-size: var(--fs-h5);
  font-weight: 600;
  line-height: var(--lh-snug);
  color: var(--fg-1);
  margin: 0 0 var(--space-2);
}

p {
  font-size: var(--fs-body);
  line-height: var(--lh-loose);
  color: var(--fg-1);
  margin: 0 0 var(--space-3);
  text-wrap: pretty;
}

small, .caption {
  font-size: var(--fs-caption);
  color: var(--fg-3);
  line-height: var(--lh-base);
}

.overline {
  font-size: var(--fs-overline);
  font-weight: 600;
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--fg-3);
}

.lead {
  font-size: var(--fs-body-lg);
  font-weight: 400;
  line-height: var(--lh-loose);
  color: var(--fg-2);
}

.display {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--fg-1);
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--secondary); }

/* ============================================================================
 * UTILITY
 * ============================================================================ */
.fg-1 { color: var(--fg-1); }
.fg-2 { color: var(--fg-2); }
.fg-3 { color: var(--fg-3); }
.fg-primary  { color: var(--primary); }
.fg-secondary{ color: var(--secondary); }

.bg-surface  { background: var(--surface); }
.bg-soft     { background: var(--surface-soft); }
.bg-primary  { background: var(--primary); color: var(--fg-on-primary); }
.bg-cyan     { background: var(--secondary); color: var(--fs-navy); }

.shadow-1 { box-shadow: var(--shadow-1); }
.shadow-2 { box-shadow: var(--shadow-2); }
.shadow-3 { box-shadow: var(--shadow-3); }
.shadow-4 { box-shadow: var(--shadow-4); }
.shadow-5 { box-shadow: var(--shadow-5); }

/* hover-rise — pulled from CardPulse App.vue */
.fs-hover-rise {
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow  var(--dur-base) var(--ease-out);
}
.fs-hover-rise:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-rise);
}
.fs-hover-rise:active { transform: translateY(0); }

/* primary-glow-surface utility — subtle cyan/navy edge on cards */
.fs-glow-surface {
  border: 1px solid var(--border);
  box-shadow:
    0 0 4px rgba(9, 208, 234, 0.10),
    0 0 12px rgba(9, 208, 234, 0.05),
    0 2px 10px rgba(15, 26, 54, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
  border-color: rgba(9, 208, 234, 0.22);
}