@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&display=swap');
/* =============================================
   BASE.CSS — FindPPI.co.uk Design System
   UK Finance Hub — Authority + Trustworthy
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* --- Type Scale (fluid) --- */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* --- Spacing System (4px base) --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- UK Finance Brand Palette (Navy + Gold) --- */
  /* Surfaces */
  --color-bg:              #F4F6F1;
  --color-surface:         #FFFFFF;
  --color-surface-2:       #EDF1EA;
  --color-surface-offset:  #E6EBE3;
  --color-surface-dynamic: #DCE3D9;
  --color-divider:         #D8DFD6;
  --color-border:          #C6D0C4;

  /* Text */
  --color-text:         #16221C;
  --color-text-muted:   #5A665E;
  --color-text-faint:   #93A099;
  --color-text-inverse: #FFFFFF;

  /* Primary (Royal Navy Blue) */
  --color-primary:           #0F3527;
  --color-primary-hover:     #0B291E;
  --color-primary-active:    #071D15;
  --color-primary-highlight: #D4E3D6;
  --color-primary-light:     #EDF4EC;

  /* Accent (British Gold) */
  --color-accent:           #B08428;
  --color-accent-hover:     #95691C;
  --color-accent-active:    #7A5514;
  --color-accent-highlight: #F6EDD8;

  /* Success / Trust Green */
  --color-success:           #1A7A4A;
  --color-success-hover:     #14623B;
  --color-success-active:    #0D4A2B;
  --color-success-highlight: #D2F0E1;

  /* Warning */
  --color-warning:           #B86A00;
  --color-warning-highlight: #FEF3E2;

  /* Error */
  --color-error:           #C0243E;
  --color-error-highlight: #FCE8EC;

  /* Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:        120ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow:        300ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 27, 53, 0.05);
  --shadow-sm: 0 2px 6px rgba(15, 27, 53, 0.07);
  --shadow-md: 0 4px 16px rgba(15, 27, 53, 0.09);
  --shadow-lg: 0 12px 32px rgba(15, 27, 53, 0.12);
  --shadow-xl: 0 24px 64px rgba(15, 27, 53, 0.15);

  /* Content widths */
  --content-narrow:  680px;
  --content-default: 1000px;
  --content-wide:    1240px;
  --content-full:    100%;

  /* Fonts */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body:    'Inter', 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg:              #0C1310;
  --color-surface:         #121B16;
  --color-surface-2:       #17241D;
  --color-surface-offset:  #1C2B22;
  --color-surface-dynamic: #223328;
  --color-divider:         #2B3D31;
  --color-border:          #3A5142;
  --color-text:            #DFE7DF;
  --color-text-muted:      #8FA096;
  --color-text-faint:      #586A5F;
  --color-text-inverse:    #0C1310;
  --color-primary:         #5FA47F;
  --color-primary-hover:   #79B994;
  --color-primary-active:  #93CBA8;
  --color-primary-highlight: #1D3226;
  --color-primary-light:   #15241B;
  --color-accent:          #D0A24A;
  --color-accent-hover:    #DEB463;
  --color-success:         #2DB36E;
  --color-success-highlight: #0D2820;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-sm: 0 2px 6px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #0C1310;
    --color-surface:         #121B16;
    --color-surface-2:       #17241D;
    --color-surface-offset:  #1C2B22;
    --color-surface-dynamic: #223328;
    --color-divider:         #2B3D31;
    --color-border:          #3A5142;
    --color-text:            #DFE7DF;
    --color-text-muted:      #8FA096;
    --color-text-faint:      #586A5F;
    --color-text-inverse:    #0C1310;
    --color-primary:         #5FA47F;
    --color-primary-hover:   #79B994;
    --color-primary-active:  #93CBA8;
    --color-primary-highlight: #1D3226;
    --color-primary-light:   #15241B;
    --color-accent:          #D0A24A;
    --color-accent-hover:    #DEB463;
    --color-success:         #2DB36E;
    --color-success-highlight: #0D2820;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
    --shadow-xl: 0 24px 64px rgba(0,0,0,0.5);
  }
}

/* --- HTML Resets --- */
html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

table { border-collapse: collapse; width: 100%; }

ul[role="list"], ol[role="list"] { list-style: none; }

::selection {
  background: rgba(26, 58, 107, 0.15);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.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;
}

/* --- Utility classes --- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container--narrow { max-width: var(--content-narrow); }
.container--default { max-width: var(--content-default); }

.text-muted  { color: var(--color-text-muted); }
.text-faint  { color: var(--color-text-faint); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }