/* ==========================================================================
   Mambani Technologies — styles.css
   Aligned to the Mambani Holdings navy/gold identity.
   No framework, no build step.
   ========================================================================== */

:root {
  /* Color — matches mambaniholdings.co.za */
  --navy: #0a1628;
  --navy-mid: #122040;
  --gold: #c9a84c;
  --gold-light: #e8c97a;
  --off-white: #f4f1eb;
  --text-light: #a8a49c;
  --white: #ffffff;
  --warn: #e0785a;

  /* Type — original Technologies pairing (kept as-is per request) */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing scale */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;

  /* Layout */
  --content-max: 760px;
  --wide-max: 1180px;
  --radius: 0px;
  --border: 1px solid rgba(255, 255, 255, 0.08);
  --border-gold: 1px solid rgba(201, 168, 76, 0.2);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--navy);
  color: var(--off-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-light); }
ul, ol { padding-left: 1.25em; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; color: var(--white); margin: 0 0 var(--space-sm); }
p { margin: 0 0 var(--space-sm); }
button { font-family: inherit; }

.visually-hidden {
  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 */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--gold); color: var(--navy);
  padding: var(--space-2xs) var(--space-sm); border-radius: var(--radius);
}
.skip-link:focus {
  left: var(--space-sm); top: var(--space-sm);
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- Layout helpers ---------- */
.wrap { max-width: var(--wide-max); margin: 0 auto; padding: 0 var(--space-md); }
.prose { max-width: var(--content-max); }
section { padding: var(--space-2xl) 0; }
.section-label {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--gold);
  margin: 0 0 var(--space-xs);
}
.hairline { border: none; border-top: var(--border); margin: var(--space-lg) 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.75em 1.4em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover { background: var(--gold-light); color: var(--navy); transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  color: var(--off-white);
  border-color: rgba(244, 241, 235, 0.3);
}
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }

/* ==========================================================================
   Navigation
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: var(--border-gold);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo-mark {
  display: flex;
  align-items: center;
}
.logo-mark img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  position: relative;
  color: var(--text-light);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: var(--space-2xs) 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--gold);
}
.nav-links a:hover::after, .nav-links a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--off-white);
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle::before { position: absolute; transform: translateY(-7px); }
.nav-toggle::after { position: absolute; transform: translateY(7px); }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }
.nav-toggle[aria-expanded="true"]::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: rotate(-45deg); }

@media (max-width: 780px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 64px 0 0 0;
    background: var(--navy);
    flex-direction: column;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform 0.25s ease;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.1rem; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: var(--navy);
  color: var(--off-white);
  overflow: hidden;
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: var(--border);
}
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(280px, 460px) 1fr;
  gap: var(--space-xl);
  align-items: stretch;
}
.hero-copy h1 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  color: var(--white);
  margin-bottom: var(--space-md);
}
.hero-copy p {
  color: rgba(244, 241, 235, 0.78);
  font-size: 1.05rem;
  max-width: 46ch;
}
.hero-ctas {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-md) 0 var(--space-lg);
  flex-wrap: wrap;
}
.hero-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  color: var(--text-light);
  border-top: var(--border-gold);
  padding-top: var(--space-sm);
}
.hero-visual {
  position: relative;
  min-height: 320px;
}
.hero-visual canvas {
  width: 100%;
  height: 100%;
  min-height: 320px;
  display: block;
}

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-visual { min-height: 220px; order: -1; }
}

/* ==========================================================================
   Services
   ========================================================================== */
.services-intro { margin-bottom: var(--space-lg); }
.service-row {
  display: grid;
  grid-template-columns: minmax(200px, 280px) 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius);
  border: var(--border);
  opacity: 0;
  transform: translateY(24px);
}
.service-row:nth-child(odd) { background: var(--navy-mid); border-color: rgba(201, 168, 76, 0.12); }
.service-row:nth-child(even) { border-color: transparent; }
.service-row h3 { font-size: 1.3rem; margin-bottom: 0; }
.service-body p { margin-bottom: var(--space-2xs); color: rgba(244, 241, 235, 0.85); }
.service-outcome {
  font-size: 0.92rem;
  color: var(--text-light);
  font-style: italic;
}

@media (max-width: 720px) {
  .service-row { grid-template-columns: 1fr; gap: var(--space-xs); }
}

/* ==========================================================================
   Approach
   ========================================================================== */
.approach-steps {
  position: relative;
  padding-left: var(--space-lg);
  margin-top: var(--space-lg);
}
.approach-line {
  position: absolute;
  left: 11px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: rgba(255, 255, 255, 0.12);
}
.approach-line-progress {
  position: absolute;
  left: 11px;
  top: 6px;
  width: 2px;
  background: var(--gold);
  height: 0%;
}
.approach-step {
  position: relative;
  padding-bottom: var(--space-xl);
  opacity: 0;
  transform: translateY(16px);
}
.approach-step:last-child { padding-bottom: 0; }
.approach-step::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-lg) + 7px);
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--navy);
  border: 2px solid var(--gold);
}
.approach-step h3 { font-size: 1.15rem; margin-bottom: var(--space-2xs); }
.approach-step p { color: rgba(244, 241, 235, 0.8); }
.guides-list {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
  display: grid;
  gap: var(--space-sm);
}
.guides-list li { padding-left: var(--space-sm); border-left: 2px solid var(--gold); color: rgba(244, 241, 235, 0.85); }
.guides-list li strong { color: var(--white); }

/* ==========================================================================
   Who we serve (tabs)
   ========================================================================== */
.segment-tabs {
  display: flex;
  gap: var(--space-lg);
  border-bottom: var(--border);
  margin: var(--space-lg) 0;
  flex-wrap: wrap;
}
.segment-tab {
  background: none;
  border: none;
  padding: var(--space-2xs) 0 var(--space-sm);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.segment-tab[aria-selected="true"] {
  color: var(--white);
  border-bottom-color: var(--gold);
}
.segment-panel { display: none; }
.segment-panel.active { display: block; }
.segment-panel p { color: rgba(244, 241, 235, 0.85); }
.segment-panel .helps {
  font-size: 0.92rem;
  color: var(--text-light);
  font-style: italic;
  margin-top: var(--space-sm);
}

/* ==========================================================================
   Proof of build
   ========================================================================== */
.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
.proof-card {
  background: var(--navy-mid);
  border: var(--border-gold);
  border-radius: var(--radius);
  padding: var(--space-lg);
}
.proof-card p { color: rgba(244, 241, 235, 0.85); }
.proof-meta {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}
@media (max-width: 780px) {
  .proof-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-section { background: var(--navy-mid); border-top: var(--border); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-2xl);
  align-items: start;
}
.contact-details p { color: rgba(244, 241, 235, 0.75); }
.contact-details a { color: var(--gold); }
.contact-form {
  display: grid;
  gap: var(--space-md);
}
.form-row { display: grid; gap: var(--space-3xs); }
.form-row label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-light);
}
.form-row .hint { font-size: 0.8rem; color: var(--text-light); font-weight: 400; }
.form-row input,
.form-row select,
.form-row textarea {
  font: inherit;
  padding: 0.65em 0.8em;
  border-radius: var(--radius);
  border: 1px solid rgba(244, 241, 235, 0.15);
  background: rgba(244, 241, 235, 0.04);
  color: var(--off-white);
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: rgba(168, 164, 156, 0.6); }
.form-row select option { background: var(--navy-mid); color: var(--off-white); }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--gold);
}
.form-row textarea { min-height: 120px; resize: vertical; }
.form-error {
  font-size: 0.85rem;
  color: var(--warn);
  display: none;
}
.form-row.invalid input,
.form-row.invalid select,
.form-row.invalid textarea { border-color: var(--warn); }
.form-row.invalid .form-error { display: block; }

.form-status {
  font-size: 0.92rem;
  padding: var(--space-2xs) 0;
  min-height: 1.4em;
}
.form-status[data-state="success"] { color: var(--gold-light); }
.form-status[data-state="error"] { color: var(--warn); }

/* Honeypot field — hidden from sighted users and screen readers */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--navy);
  color: var(--text-light);
  padding: var(--space-lg) 0;
  font-size: 0.88rem;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .service-row, .approach-step { opacity: 1 !important; transform: none !important; }
}