/* ==========================================
   BASE.CSS – Reset, variables, typography
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Light luxury B2B — canvas & type */
  --clr-bg:         #f6f7f9;
  --clr-bg-1:       #eef1f5;
  --clr-bg-2:       #e8ecf1;
  --clr-bg-3:       #dfe5ec;
  --clr-surface:    #ffffff;
  --clr-surface-2:  #fafbfc;
  --clr-border:     rgba(15, 23, 42, 0.075);
  --clr-border-med: rgba(15, 23, 42, 0.12);
  --clr-border-str: rgba(15, 23, 42, 0.22);

  --clr-text:       #0f172a;
  --clr-text-muted: #475569;
  --clr-text-faint: #64748b;

  /* Accent — refined teal + enterprise primaries */
  --clr-primary:      #0f766e;
  --clr-primary-dim:  rgba(15, 118, 110, 0.1);
  --clr-primary-glow: rgba(15, 118, 110, 0.22);
  --clr-primary-dark: #0d5c56;
  --clr-on-primary:   #ffffff;

  --clr-blue:         #1d4ed8;
  --clr-blue-dim:     rgba(29, 78, 216, 0.08);
  --clr-blue-glow:    rgba(29, 78, 216, 0.16);

  --clr-purple:       #6d28d9;
  --clr-purple-dim:   rgba(109, 40, 217, 0.08);

  --clr-orange:       #c2410c;
  --clr-orange-dim:   rgba(194, 65, 12, 0.08);

  --clr-yellow:       #b45309;
  --clr-teal:         #0e7490;
  --clr-teal-dim:     rgba(14, 116, 144, 0.1);
  --clr-red:          #dc2626;

  --clr-pink-accent: #be185d;

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  /* Fluid type scale */
  --text-xs:   clamp(0.69rem, 0.65rem + 0.19vw, 0.75rem);
  --text-sm:   clamp(0.81rem, 0.76rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.27vw, 1rem);
  --text-lg:   clamp(1.06rem, 0.98rem + 0.40vw, 1.25rem);
  --text-xl:   clamp(1.19rem, 1.05rem + 0.70vw, 1.5rem);
  --text-2xl:  clamp(1.44rem, 1.2rem + 1.19vw, 2rem);
  --text-3xl:  clamp(1.8rem, 1.4rem + 2vw, 2.75rem);
  --text-4xl:  clamp(2.1rem, 1.5rem + 3vw, 3.5rem);
  --text-5xl:  clamp(2.5rem, 1.5rem + 5vw, 4.5rem);

  /* Spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Border radius */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-2xl:  32px;
  --r-full: 9999px;

  /* Shadows — soft daylight */
  --shadow-sm:  0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md:  0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg:  0 18px 50px rgba(15, 23, 42, 0.1);
  --shadow-xl:  0 28px 70px rgba(15, 23, 42, 0.12);
  --shadow-accent: 0 12px 40px rgba(15, 118, 110, 0.12);
  --shadow-blue:  0 12px 40px rgba(29, 78, 216, 0.08);

  /* Layout */
  --nav-h:       72px;
  --container-w: 1240px;
  --container-px: clamp(1rem, 5vw, 2rem);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-med:  250ms ease;
  --t-slow: 400ms ease;
}

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

body {
  font-family: var(--font);
  font-size: var(--text-base);
  font-weight: var(--fw-normal);
  line-height: 1.7;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: var(--fw-bold);
  color: var(--clr-text);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { color: var(--clr-text-muted); line-height: 1.75; }

/* Focus outline */
:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg-1); }
::-webkit-scrollbar-thumb { background: var(--clr-surface-2); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: var(--clr-border-str); }

/* Selection */
::selection {
  background: color-mix(in srgb, var(--clr-primary) 18%, transparent);
  color: var(--clr-text);
}