/* ==========================================================
   base.css - reset, variables, typography
   ========================================================== */
@font-face { font-family: "Sora"; src: url("../assets/fonts/sora-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Sora"; src: url("../assets/fonts/sora-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Sora"; src: url("../assets/fonts/sora-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Sora"; src: url("../assets/fonts/sora-800.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../assets/fonts/inter-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../assets/fonts/inter-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../assets/fonts/inter-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../assets/fonts/inter-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

@property --angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }

:root {
  color-scheme: light;

  --ink: #0B1020;
  --ink-2: #151B33;
  --violet: #7C3AED;
  --indigo: #4F46E5;
  --cyan: #06B6D4;
  --pink: #FF4D8D;
  --amber: #FFB020;
  --emerald: #10B981;
  --cloud: #F6F7FF;
  --white: #FFFFFF;

  /* text colours that pass WCAG AA */
  --text: #1B2140;
  --text-soft: #48506f;
  --text-on-dark: #F4F5FF;
  --text-on-dark-soft: #B9BEDD;
  --violet-text: #6D28D9;          /* violet that is readable on light */
  --wa: #067A57;                   /* WhatsApp-style green, white text on it passes WCAG AA */
  --wa-dark: #04604A;

  --grad-brand: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
  --grad-warm: linear-gradient(135deg, #FF4D8D 0%, #FFB020 100%);
  --grad-fresh: linear-gradient(135deg, #06B6D4 0%, #10B981 100%);
  --grad-aurora: linear-gradient(100deg, #7C3AED, #FF4D8D, #06B6D4, #FFB020, #7C3AED);

  --a1: var(--violet);             /* per-section accent pair */
  --a2: var(--cyan);

  --font-head: "Sora", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 32px;

  --shadow-1: 0 1px 2px rgba(11, 16, 32, .06), 0 8px 24px rgba(11, 16, 32, .08);
  --shadow-2: 0 2px 4px rgba(11, 16, 32, .06), 0 18px 48px rgba(79, 70, 229, .16);
  --shadow-glow: 0 10px 40px rgba(124, 58, 237, .35);

  --nav-h: 72px;
  --pad: clamp(1rem, 4vw, 2rem);
  --section-y: clamp(4.5rem, 10vw, 8.5rem);
  --maxw: 1280px;

  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: auto;
  scroll-padding-top: calc(var(--nav-h) + 8px);
  background: var(--ink);
}
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, .96rem + .2vw, 1.125rem);
  line-height: 1.6;
  color: var(--text);
  background: var(--cloud);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
html.no-scroll, html.no-scroll body { overflow: hidden; }

img, svg, canvas { max-width: 100%; }
svg { display: inline-block; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
[hidden] { display: none !important; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
h2 { font-size: clamp(2rem, 1.2rem + 3.6vw, 3.75rem); }
h3 { font-size: clamp(1.15rem, 1.05rem + .5vw, 1.45rem); line-height: 1.2; letter-spacing: -.01em; font-weight: 700; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.skip-link {
  position: fixed; left: 1rem; top: -4rem; z-index: 10000;
  background: var(--white); color: var(--ink); padding: .75rem 1.1rem; border-radius: 12px; font-weight: 700;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* gradient text with a solid-colour fallback */
.grad-text { color: var(--cyan); }
.aurora-text { color: #ff8ab4; }
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .grad-text {
    background: var(--grad-brand);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
  }
  .aurora-text {
    background-image: var(--grad-aurora);
    background-size: 300% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
  }
}

:focus { outline: none; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 8px; }
.section--dark :focus-visible, .footer :focus-visible, .menu :focus-visible { outline-color: #67e8f9; }
/* older browsers without :focus-visible keep the outline for keyboard + mouse */
@supports not selector(:focus-visible) { :focus { outline: 3px solid var(--cyan); outline-offset: 3px; } }

::selection { background: rgba(124, 58, 237, .25); }