/* ============================================
   BONTSHABELE (PTY) LTD — Design System
   Sovereign Logistics / Corporate Procurement
   Fonts: Inter (headlines) + Public Sans (body)
   Palette: Deep Black + Sophisticated Gold
   ============================================ */

/* --- Google Fonts --- */
/* Google Fonts loaded via HTML <link> tags for better performance */

/* --- Design Tokens --- */
:root {
  /* Primary */
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-primary-container: #1b1b1b;

  /* Accent — Sophisticated Gold */
  --color-accent: #D4AF37;
  --color-accent-hover: #c9a227;
  --color-accent-light: #fed65b;

  /* Surfaces */
  --color-background: #f8f9fa;
  --color-surface: #ffffff;
  --color-surface-dim: #f2f4f5;
  --color-surface-container: #edeeef;
  --color-surface-high: #e7e8e9;

  /* Text */
  --color-on-background: #191c1d;
  --color-on-surface: #191c1d;
  --color-on-surface-variant: #4c4546;
  --color-outline: #7e7576;
  --color-outline-variant: #cfc4c5;
  --color-muted: #6c757d;

  /* Semantic */
  --color-error: #ba1a1a;
  --color-success: #2e7d32;

  /* Typography */
  --font-headline: 'Inter', sans-serif;
  --font-body: 'Public Sans', sans-serif;

  /* Spacing (8px scale) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-section: 80px;

  /* Layout */
  --container-max: 1200px;
  --gutter: 24px;

  /* Radius */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.05);
  --shadow-elevated: 0 8px 30px rgba(0,0,0,0.08);

  /* Transitions */
  --transition: 200ms ease;
  --transition-slow: 400ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for sticky header */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-on-background);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
ul, ol { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-on-background);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: var(--space-3); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: var(--space-2); }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); font-weight: 600; margin-bottom: var(--space-1); }
h4 { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--space-1); }

p { margin-bottom: var(--space-2); max-width: 70ch; }
.label { font-family: var(--font-body); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.overline { font-family: var(--font-body); font-size: 0.875rem; font-weight: 500; color: var(--color-accent); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-1); }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--space-section) 0;
}

.section--alt {
  background-color: var(--color-surface-dim);
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-on-primary);
}

.grid {
  display: grid;
  gap: var(--gutter);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- Header / Navbar --- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-surface-high);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-elevated);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-primary);
}

.header__logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-4);
}

.header__nav a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-on-background);
  position: relative;
  padding: 4px 0;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__nav a:hover {
  color: var(--color-primary);
}

.header__inner .header__cta {
  display: none !important;
}

@media (min-width: 1024px) {
  .header__nav { display: flex; }
  .header__inner .header__cta { display: inline-flex !important; }
  .mobile-toggle { display: none !important; }
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Overlay */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(-20px);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.mobile-menu a {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.mobile-menu__close {
  position: absolute;
  top: 24px; right: 24px;
  background: none; border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 14px 32px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn--primary:hover {
  background: var(--color-primary-container);
  color: var(--color-on-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.btn--accent {
  background: var(--color-accent);
  color: #000;
}

.btn--accent:hover {
  background: #c9a227;
  color: #000;
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn--white {
  background: var(--color-surface);
  color: var(--color-primary);
}

.btn--white:hover {
  background: var(--color-surface-dim);
  color: var(--color-primary);
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-high);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

/* --- Image Wrapper --- */
.image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
  aspect-ratio: 4/3;
  background: var(--color-surface-dim);
}

.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.image-wrapper:hover img {
  transform: scale(1.05);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.card__text {
  font-size: 0.9375rem;
  color: var(--color-on-surface-variant);
  line-height: 1.6;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  overflow: hidden;
  margin-top: 72px;
  text-align: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  filter: saturate(0.6);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.55) 40%, rgba(0,0,0,0.75) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 70%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

@media (max-width: 768px) {
  .hero__content { width: 90%; }
}

.hero__content .overline {
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-2);
  color: var(--color-accent);
}

.hero__content h1 {
  color: var(--color-on-primary);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
}

.hero__content p {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-5);
  max-width: 620px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}

.hero__actions .btn {
  padding: 16px 40px;
  font-size: 1rem;
}

/* --- Trust Indicator Bar --- */
.trust-bar {
  background: var(--color-surface-dim);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-surface-high);
}

.trust-bar__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.trust-bar__icon {
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-bar__icon svg {
  width: 28px;
  height: 28px;
}

.trust-bar__content {
  display: flex;
  flex-direction: column;
}

.trust-bar__label {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9375rem;
  line-height: 1.2;
}

.trust-bar__subtext {
  font-size: 0.8125rem;
  color: var(--color-on-surface-variant);
}

@media (max-width: 1024px) {
  .trust-bar__inner {
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .trust-bar__inner {
    flex-direction: column;
    align-items: flex-start;
    max-width: 300px;
    margin: 0 auto;
    gap: var(--space-4);
  }
}


/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-6);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  color: var(--color-on-surface-variant);
  margin-left: auto;
  margin-right: auto;
}

/* --- Compliance Badges --- */
.compliance-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.compliance-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-high);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-on-surface);
}

.compliance-badge svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --- Feature List --- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--color-on-surface-variant);
}

.feature-list li svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-on-primary);
  text-align: center;
  padding: var(--space-8) var(--gutter);
}

.cta-banner h2 {
  color: var(--color-on-primary);
  margin-bottom: var(--space-2);
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  max-width: 520px;
  margin: 0 auto var(--space-4);
}

/* --- Footer --- */
.footer {
  background: var(--color-primary-container);
  color: rgba(255,255,255,0.7);
  padding: var(--space-8) 0 var(--space-4);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer__brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  max-width: 300px;
}

.footer__title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.footer a {
  color: rgba(255,255,255,0.85);
  font-size: 0.875rem;
  display: block;
  padding: 4px 0;
}

.footer a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  text-align: center;
  font-size: 0.8125rem;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__social {
  display: flex;
  gap: 16px;
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
}

.footer__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(212,175,55,0.1);
}

.footer__social svg { width: 18px; height: 18px; }

.footer__credit {
  color: rgba(255,255,255,0.85);
}

.footer__credit a {
  display: inline;
  color: rgba(255,255,255,0.85);
  padding: 0;
}

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-on-surface);
}

.form-group label .required {
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-on-surface);
  background: var(--color-surface);
  border: 1px solid #dee2e6;
  border-radius: var(--radius);
  transition: border-color var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.08);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23191c1d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .form-row { grid-template-columns: repeat(2, 1fr); }
}

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-10) 0 var(--space-6);
  margin-top: 72px;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-on-primary);
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
}

.page-hero .overline {
  color: var(--color-accent);
}

/* --- Two Column Layout --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 768px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}

.two-col--reverse .two-col__media { order: -1; }

@media (min-width: 768px) {
  .two-col--reverse .two-col__media { order: 1; }
}

.two-col__media img {
  border-radius: var(--radius-lg);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* --- Industry Cards --- */
.industry-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-high);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition);
}

.industry-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.industry-card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}

.industry-card__icon svg { width: 28px; height: 28px; }

.industry-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-2);
}

.tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 12px;
  background: var(--color-surface-dim);
  border-radius: 100px;
  color: var(--color-on-surface-variant);
}

/* --- Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 300ms; }

/* --- WhatsApp FAB --- */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #25D366;
  color: white;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-elevated);
  z-index: 900;
  transition: transform var(--transition);
}

.whatsapp-fab:hover {
  transform: scale(1.1);
}

.whatsapp-fab svg { width: 32px; height: 32px; }



/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.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; }

/* --- Responsive body offset --- */
main { margin-top: 0; }