/* ============================================================
   NANDIBANTU TRADING — main.css
   Design tokens, reset, shared nav, footer, hero, utilities
   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --color-dark-bg:    #141414;    /* Rich near-black with warmth */
  --color-primary:    #6B1414;    /* Deep wine/maroon — authority without aggression */
  --color-accent:     #C0392B;    /* Pompeii red — refined, readable CTA colour */
  --color-text:       #1A1A1A;    /* Near-black for body text */
  --color-text-light: #F7F4F4;    /* Warm off-white — easier on eyes than pure white */
  --color-grey-bg:    #F8F5F5;    /* Very light warm blush — section backgrounds */
  --color-border:     #E8DFE0;    /* Slightly warm border — cohesive with palette */

  --font-base: 'Inter', system-ui, -apple-system, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.12);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.16);

  --transition: 0.25s ease;

  --max-width: 1280px;
  --nav-height: 76px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.6;
  background: #fff;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  outline: none;
}
h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: var(--font-weight-bold); }

/* ── Typography Scale ───────────────────────────────────────── */
.text-xs   { font-size: .75rem; }
.text-sm   { font-size: .875rem; }
.text-base { font-size: 1rem; }
.text-lg   { font-size: 1.125rem; }
.text-xl   { font-size: 1.25rem; }
.text-2xl  { font-size: 1.5rem; }
.text-3xl  { font-size: 1.875rem; }
.text-4xl  { font-size: 2.25rem; }
.text-5xl  { font-size: 3rem; }

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 768px)  { .container { padding-inline: 2rem; } }
@media (min-width: 1024px) { .container { padding-inline: 3rem; } }

.section-pad { padding-block: 5rem; }
@media (max-width: 768px) { .section-pad { padding-block: 3rem; } }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.text-center { text-align: center; }

/* ── Colours / BG utilities ─────────────────────────────────── */
.bg-dark    { background: var(--color-dark-bg); }
.bg-primary { background: var(--color-primary); }
.bg-accent  { background: var(--color-accent); }
.bg-grey    { background: var(--color-grey-bg); }
.text-white  { color: var(--color-text-light); }
.text-accent { color: var(--color-accent); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 2rem;
  border-radius: var(--radius-full);
  font-size: .9375rem;
  font-weight: var(--font-weight-semibold);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: #a93226; }
.btn-secondary {
  background: transparent;
  color: var(--color-text-light);
  border: 2px solid rgba(255,255,255,.6);
}
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-sm { padding: .5rem 1.25rem; font-size: .875rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1.0625rem; }

/* ── Section headings ───────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .75rem;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1.0625rem;
  color: #666;
  max-width: 56ch;
}
.section-head { margin-bottom: 3rem; }
.section-head.center { text-align: center; }
.section-head.center .section-subtitle { margin-inline: auto; }

/* ── Site Banner ────────────────────────────────────────────── */
.site-banner {
  padding: .6rem 0;
  font-size: .8125rem;
  font-weight: 500;
  text-align: center;
}
.site-banner .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
}
.site-banner-msg { flex: 1; }
.site-banner-close {
  background: none;
  border: none;
  cursor: pointer;
  opacity: .7;
  transition: opacity .2s;
  padding: 2px;
  line-height: 0;
}
.site-banner-close:hover { opacity: 1; }
.site-banner--info {
  background: #dbeafe;
  color: #1e40af;
}
.site-banner--info .site-banner-close svg { stroke: #1e40af; }
.site-banner--warning {
  background: #fef3c7;
  color: #92400e;
}
.site-banner--warning .site-banner-close svg { stroke: #92400e; }
.site-banner--success {
  background: #d1fae5;
  color: #065f46;
}
.site-banner--success .site-banner-close svg { stroke: #065f46; }
.site-banner--danger {
  background: #fee2e2;
  color: #991b1b;
}
.site-banner--danger .site-banner-close svg { stroke: #991b1b; }

/* ── Top Bar ────────────────────────────────────────────────── */
.topbar {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,.75);
  font-size: .8125rem;
  padding: .5rem 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}
.topbar-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.topbar-info a:hover { color: var(--color-accent); }
.topbar-info span,
.topbar-info a {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
}
.topbar-social {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.topbar-social a {
  color: rgba(255,255,255,.6);
  font-size: 1rem;
  transition: var(--transition);
}
.topbar-social a:hover { color: var(--color-accent); }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  transition: box-shadow .25s ease;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}
.nav-logo img { height: 52px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.nav-links a {
  color: rgba(255,255,255,.85);
  font-size: .9rem;
  font-weight: var(--font-weight-medium);
  padding: .5rem .875rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255,255,255,.12);
}
.nav-cta {
  background: var(--color-accent);
  color: #fff !important;
  font-weight: var(--font-weight-bold) !important;
  padding: .5rem 1.25rem !important;
  border-radius: var(--radius-full) !important;
}
.nav-cta:hover { background: #a93226 !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  inset: 0;
  background: var(--color-dark-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  z-index: 999;
}
.nav-drawer.open { transform: translateX(0); }
.nav-drawer a {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: rgba(255,255,255,.85);
  transition: var(--transition);
}
.nav-drawer a:hover { color: var(--color-accent); }
.nav-drawer .btn-primary { font-size: 1rem; }

@media (max-width: 1023px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

/* ── Page Hero Banner ───────────────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--color-dark-bg) 0%, var(--color-primary) 100%);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/e45fc902e755e4a7ff8db0aae7171fd10bd8a7676f4d8bcddf83a52317378fd69e14300d241e510fd69111b3745493a3c7578ee4f176b1f5e1e20b_1280-24.jpg') center/cover no-repeat;
  opacity: .12;
}
.page-hero .container { position: relative; }
.page-hero-eyebrow {
  font-size: .75rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .75rem;
}
.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  color: #fff;
  margin-bottom: .75rem;
}
.page-hero-subtitle {
  font-size: 1.0625rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 1.5rem;
  max-width: 52ch;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: rgba(255,255,255,.55);
}
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { color: rgba(255,255,255,.35); }

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,.7);
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px)  { .footer-grid { grid-template-columns: 1fr; } }

.footer-logo { height: 48px; width: auto; margin-bottom: 1rem; }
.footer-tagline {
  font-size: .9375rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  max-width: 30ch;
}
.footer-social { display: flex; gap: .75rem; flex-wrap: wrap; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.7);
  font-size: .875rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--color-accent); color: #fff; }

.footer-col h4 {
  font-size: .8125rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1.25rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-col ul li a {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent); padding-left: 4px; }

.footer-contact-list { display: flex; flex-direction: column; gap: .85rem; }
.footer-contact-item {
  display: flex;
  gap: .75rem;
  font-size: .9rem;
  color: rgba(255,255,255,.65);
}
.footer-contact-item svg { flex-shrink: 0; margin-top: 3px; color: var(--color-accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.25rem 0;
  font-size: .8125rem;
  color: rgba(255,255,255,.4);
}

/* ── Card component ─────────────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--color-border);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-body { padding: 1.75rem; }
.card-title { font-size: 1.125rem; color: var(--color-primary); margin-bottom: .5rem; }
.card-text { font-size: .9375rem; color: #666; line-height: 1.7; }

/* ── Form elements ──────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-label {
  font-size: .875rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}
.form-control {
  padding: .75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: border-color var(--transition);
  background: #fff;
  width: 100%;
}
.form-control:focus { border-color: var(--color-primary); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }

/* ── Alert banners ──────────────────────────────────────────── */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: .9375rem;
  display: none;
  align-items: flex-start;
  gap: .75rem;
}
.alert.show { display: flex; }
.alert-message { flex: 1; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #6ee7b7; }
.alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }

/* ── Animations ─────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── SVG icon helper ────────────────────────────────────────── */
.icon { display: inline-block; vertical-align: middle; }

/* ── Why-card (shared between index + about) ────────────────── */
.why-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-grey-bg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.why-card:hover { border-color: var(--color-accent); background: #fff; }
.why-card-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1rem;
}
.why-card-text h4 { font-size: 1rem; color: var(--color-primary); margin-bottom: .25rem; }
.why-card-text p  { font-size: .875rem; color: #666; line-height: 1.5; }

/* ── Skip-to-content link ───────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--color-accent);
  color: #fff;
  font-weight: var(--font-weight-bold);
  font-size: .9rem;
  padding: .6rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top .2s ease;
}
.skip-link:focus { top: .75rem; }

/* ── Focus rings (WCAG 2.1 AA) ─────────────────────────────── */
.btn:focus-visible,
.form-control:focus-visible,
.nav-links a:focus-visible,
.nav-drawer a:focus-visible,
.sidebar-nav a:focus-visible,
.view-cv-btn:focus-visible,
.scroll-top:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ── Disabled button state ──────────────────────────────────── */
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Placeholder colour ─────────────────────────────────────── */
::placeholder { color: #999; opacity: 1; }

/* ── Alert close button ─────────────────────────────────────── */
.alert-close {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  opacity: .7;
  padding: 0;
  color: inherit;
}
.alert-close:hover { opacity: 1; }

/* ── Scroll-to-top (optional) ───────────────────────────────── */
.scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px; height: 44px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 900;
  cursor: pointer;
  box-shadow: var(--shadow-md);
}
.scroll-top.show { opacity: 1; pointer-events: all; }
.scroll-top:hover { background: #a93226; }

/* ── Public Site Themes (admin-controlled) ────────────────── */
/* Default theme uses the :root variables above — no override needed */

[data-theme="ocean-blue"] {
  --color-dark-bg:    #0f1b2d;
  --color-primary:    #1a4b8c;
  --color-accent:     #2563eb;
  --color-text:       #1e293b;
  --color-text-light: #f1f5f9;
  --color-grey-bg:    #f1f5f9;
  --color-border:     #dbeafe;
}
[data-theme="ocean-blue"] .btn-primary:hover { background: #1d4ed8; }
[data-theme="ocean-blue"] .scroll-top:hover { background: #1d4ed8; }

[data-theme="forest-green"] {
  --color-dark-bg:    #0f1f14;
  --color-primary:    #14532d;
  --color-accent:     #16a34a;
  --color-text:       #1a2e1a;
  --color-text-light: #f0fdf4;
  --color-grey-bg:    #f0fdf4;
  --color-border:     #dcfce7;
}
[data-theme="forest-green"] .btn-primary:hover { background: #15803d; }
[data-theme="forest-green"] .scroll-top:hover { background: #15803d; }

[data-theme="warm-amber"] {
  --color-dark-bg:    #1c1108;
  --color-primary:    #78350f;
  --color-accent:     #d97706;
  --color-text:       #292524;
  --color-text-light: #fffbeb;
  --color-grey-bg:    #fffbeb;
  --color-border:     #fef3c7;
}
[data-theme="warm-amber"] .btn-primary:hover { background: #b45309; }
[data-theme="warm-amber"] .scroll-top:hover { background: #b45309; }

[data-theme="royal-purple"] {
  --color-dark-bg:    #1a0a2e;
  --color-primary:    #4c1d95;
  --color-accent:     #7c3aed;
  --color-text:       #1e1b2e;
  --color-text-light: #faf5ff;
  --color-grey-bg:    #faf5ff;
  --color-border:     #ede9fe;
}
[data-theme="royal-purple"] .btn-primary:hover { background: #6d28d9; }
[data-theme="royal-purple"] .scroll-top:hover { background: #6d28d9; }

[data-theme="dark-mode"] {
  --color-dark-bg:    #000;
  --color-primary:    #e2e8f0;
  --color-accent:     #6366f1;
  --color-text:       #e2e8f0;
  --color-text-light: #f1f5f9;
  --color-grey-bg:    #1e293b;
  --color-border:     #334155;
}
[data-theme="dark-mode"] body,
body[data-theme="dark-mode"] { background: #0f172a; }
[data-theme="dark-mode"] .btn-primary:hover { background: #4f46e5; }
[data-theme="dark-mode"] .scroll-top:hover { background: #4f46e5; }
[data-theme="dark-mode"] .section-subtitle { color: #94a3b8; }
[data-theme="dark-mode"] .card,
[data-theme="dark-mode"] .panel { background: #1e293b; }