/*
  Mbalwa Investment Services — Base styles
  Reset, base elements, typography, layout primitives, utilities.
*/

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--leading-body);
  color: var(--color-text);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; padding: 0; }

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

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

/* ---- Focus states — visible everywhere, never removed ---- */
:focus-visible {
  outline: 2px solid var(--color-gold-deep);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Headings ---- */
h1, h2, h3, h4 {
  color: var(--color-charcoal);
  line-height: var(--leading-tight);
}
h1 {
  font-family: var(--font-heading);
  font-size: var(--size-h1);
  font-weight: 600;
  line-height: 1.08;
}
h2, h3, h4 { font-family: var(--font-ui); }
h2 { font-size: var(--size-h2); font-weight: 600; line-height: 1.16; }
h3 { font-size: var(--size-h3); font-weight: 600; line-height: var(--leading-snug); }
h4 { font-size: var(--size-h4); font-weight: 600; }

p { max-width: 68ch; }
p.lead { font-size: var(--size-lead); color: var(--color-text); max-width: 60ch; }

small, .text-small { font-size: var(--size-small); line-height: var(--leading-small); color: var(--color-text-muted); }

/* ---- Eyebrow label ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-ui);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-gold-deep);
}

/* Design-system heading group aliases. */
.kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-family: var(--font-ui);
  font-size: var(--size-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-gold-deep);
}
.kicker--center { margin-inline: auto; }
.kicker--light { color: var(--color-champagne); border-color: rgba(255,255,255,0.35); }
.section-title { font: 600 var(--size-h2)/1.16 var(--font-ui); }
.section-lead { max-width: 700px; font-size: var(--size-lead); }
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--gradient-gold-fill);
  border-radius: 2px;
}

/* ---- Layout primitives ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.container--narrow { max-width: var(--container-narrow); }

.section {
  padding-block: var(--section-space);
}
.section--tight { padding-block: var(--section-space-compact); }
.section--tint { background: var(--color-surface-tint); }
.section--dark { background: var(--color-surface-dark); color: var(--color-white); }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--color-white); }
.section--dark .eyebrow { color: var(--color-gold); }
.section--dark p { color: rgba(255,255,255,0.82); }

.stack > * + * { margin-top: var(--space-3); }
.stack-lg > * + * { margin-top: var(--space-5); }
.stack-sm > * + * { margin-top: var(--space-2); }

.grid { display: grid; gap: var(--card-gap); }
@media (min-width: 641px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 721px) and (max-width: 1080px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1081px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 720px) {
  .section { padding-block: var(--section-space-compact); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.hidden { display: none !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;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -60px;
  background: var(--color-charcoal);
  color: var(--color-white);
  padding: 0.75em 1.25em;
  border-radius: var(--radius-sm);
  z-index: 300;
  transition: top var(--duration-base) var(--ease-out);
}
.skip-link:focus { top: var(--space-2); }

/* ---- Scroll reveal (progressive enhancement — visible by default, JS adds the motion) ---- */
.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-offset));
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.js-disabled .reveal,
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}