/* =============================================
   BASE STYLESHEET — consultation.com
   ============================================= */

/* === DESIGN TOKENS === */
:root {
  /* Type Scale */
  --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 */
  --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;

  /* 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-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 60, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 60, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 60, 0.12);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* === LIGHT MODE (default) === */
:root, [data-theme="light"] {
  --color-bg:              #F8F8F6;
  --color-surface:         #FFFFFF;
  --color-surface-2:       #F3F3F0;
  --color-surface-offset:  #EBEBEA;
  --color-divider:         #E2E2DF;
  --color-border:          #D8D8D5;

  --color-text:            #0F1720;
  --color-text-muted:      #626874;
  --color-text-faint:      #A8ADB8;
  --color-text-inverse:    #F8F8F6;

  /* Indigo-blue accent */
  --color-primary:         #2B4BE8;
  --color-primary-hover:   #1F3BD4;
  --color-primary-active:  #1530B8;
  --color-primary-highlight: #E0E6FF;
  --color-primary-subtle:  #F0F3FF;

  /* Navy dark for hero/accents */
  --color-navy:            #0F1720;
  --color-navy-soft:       #1A2540;
}

/* === DARK MODE === */
[data-theme="dark"] {
  --color-bg:              #0D1117;
  --color-surface:         #131920;
  --color-surface-2:       #1A2130;
  --color-surface-offset:  #1E2838;
  --color-divider:         #252F3F;
  --color-border:          #2E3A4E;

  --color-text:            #E8EAF0;
  --color-text-muted:      #7A8498;
  --color-text-faint:      #4A5468;
  --color-text-inverse:    #0D1117;

  --color-primary:         #5B7BFF;
  --color-primary-hover:   #7B96FF;
  --color-primary-active:  #9AADFF;
  --color-primary-highlight: #1E2B4A;
  --color-primary-subtle:  #162040;

  --color-navy:            #E8EAF0;
  --color-navy-soft:       #C0C8DC;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #0D1117;
    --color-surface:         #131920;
    --color-surface-2:       #1A2130;
    --color-surface-offset:  #1E2838;
    --color-divider:         #252F3F;
    --color-border:          #2E3A4E;
    --color-text:            #E8EAF0;
    --color-text-muted:      #7A8498;
    --color-text-faint:      #4A5468;
    --color-text-inverse:    #0D1117;
    --color-primary:         #5B7BFF;
    --color-primary-hover:   #7B96FF;
    --color-primary-active:  #9AADFF;
    --color-primary-highlight: #1E2B4A;
    --color-primary-subtle:  #162040;
    --color-navy:            #E8EAF0;
    --color-navy-soft:       #C0C8DC;
  }
}

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

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;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

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

::selection {
  background: var(--color-primary-highlight);
  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;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

a, button, [role="button"] {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              opacity var(--transition-interactive);
}

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