/* ============================================================
   Brand tokens — visual direction set by the Chartered Energy
   logo (the future brand): black/charcoal, warm metallic gold,
   white, soft silver. Restrained — gold is an accent, not a
   dominant colour. Business NAME text lives in js/brand.js.
   ============================================================ */
:root {
  --color-primary: #121214;       /* near-black charcoal — dark sections, footer, headings */
  --color-primary-light: #1e1e21;
  --color-gold: #c6a15b;          /* metallic gold accent — buttons, credentials, dividers */
  --color-gold-dark: #a2823f;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f5f2;        /* warm light grey */
  --color-text: #17171a;
  --color-text-muted: #5c5d62;
  --color-border: #e7e4de;
  --font-heading: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
  --container-width: 1160px;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(18, 18, 20, 0.08);
  --shadow-lg: 0 10px 40px rgba(18, 18, 20, 0.16);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.1rem, 4.2vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); }
h3 { font-size: 1.2rem; }

p { color: var(--color-text-muted); }

.section { padding: 84px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-primary); color: #fff; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.75); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
}
.section-dark .eyebrow, .statement-band .eyebrow { color: var(--color-gold); }
.section-dark .eyebrow::before, .statement-band .eyebrow::before { background: var(--color-gold); }

.section-head {
  max-width: 660px;
  margin: 0 auto 44px;
  text-align: center;
}
.section-head .eyebrow { justify-content: center; }
.section-head p { margin-top: 14px; }

.gold-rule {
  width: 56px;
  height: 3px;
  background: var(--color-gold);
  border-radius: 2px;
  margin: 0 auto 26px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--color-gold);
  color: var(--color-primary);
  box-shadow: 0 6px 18px rgba(198, 161, 91, 0.35);
}
.btn-primary:hover { background: var(--color-gold-dark); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--color-gold); }
.btn-outline-dark {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline-dark:hover { background: var(--color-primary); color: #fff; }
.btn-sm { padding: 10px 18px; font-size: 0.85rem; }
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-gold-dark);
}
.btn-link:hover { text-decoration: underline; }

/* ============ Header / Nav ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  min-height: 84px;
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  flex-shrink: 0;
}
.logo .mark { height: 34px; width: auto; flex-shrink: 0; border-radius: 6px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: nowrap;
}
.nav-links a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--color-gold-dark); }
.nav-links a.active { color: var(--color-primary); font-weight: 600; }
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--color-gold);
}
.nav-cta { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  background: linear-gradient(150deg, var(--color-primary) 0%, var(--color-primary-light) 55%, #000000 100%);
  color: #fff;
  overflow: hidden;
  padding: 88px 0 104px;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 82% 18%, rgba(198,161,91,0.22), transparent 42%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
.hero-logo { max-width: min(420px, 85%); width: 100%; height: auto; margin: 0 auto 32px; }
.hero-brand {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.22em;
  color: #fff;
  margin-bottom: 14px;
}
.hero-services {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 30px;
}
.hero-services .dash { width: 30px; height: 1px; background: rgba(198,161,91,0.5); }
.hero-services .sep { color: rgba(255,255,255,0.3); }
.hero-services .service-item { display: inline-flex; align-items: center; gap: 6px; }
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero .lede { color: rgba(255,255,255,0.8); font-size: 1.08rem; max-width: 540px; margin: 0 auto 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* ============ Lead statement (immediately below hero) ============ */
.lead-statement-section { padding: 64px 0; text-align: center; }
.lead-statement {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  color: var(--color-primary) !important;
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.45;
}

/* ============ Cards / Grids ============ */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(18,18,20,0.06);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.95rem; }

.icon-badge {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--color-text);
}

/* ============ Split sections ============ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.media-block {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  padding: 24px;
}

/* ============ Pull quote / principle line ============ */
.pull-quote {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-primary);
  padding: 18px 24px;
  border-left: 3px solid var(--color-gold);
  background: var(--color-bg-alt);
  border-radius: 0 8px 8px 0;
  margin: 22px 0;
}

/* ============ Statement band (honest-advice style) ============ */
.statement-band {
  background: linear-gradient(135deg, var(--color-primary), #000000);
  color: #fff;
  border-radius: var(--radius);
  padding: 64px 48px;
  text-align: center;
}
.statement-band h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  max-width: 780px;
  margin: 0 auto 16px;
}
.statement-band p {
  color: rgba(255,255,255,0.72);
  max-width: 620px;
  margin: 0 auto;
}

/* ============ CTA band ============ */
.cta-band {
  background: linear-gradient(120deg, var(--color-primary), #000000);
  color: #fff;
  border-radius: var(--radius);
  padding: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.75); }

/* ============ Process steps ============ */
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.process-step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px 24px;
  position: relative;
}
.process-step .step-num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
  background: var(--color-gold);
  width: 30px; height: 30px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.process-step h3 { font-size: 1.02rem; margin-bottom: 6px; }
.process-step p { font-size: 0.9rem; }

/* ============ Credentials ============ */
.credential-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}
.credential-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--color-gold);
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--color-primary);
  background: rgba(198, 161, 91, 0.08);
}
.credential-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-gold); }

/* ============ Founder section ============ */
.founder-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.founder-photo {
  aspect-ratio: 3/4;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  overflow: hidden;
}
.founder-photo img { width: 100%; height: 100%; object-fit: cover; }
.founder-photo.placeholder {
  border: 1px dashed var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--color-text-muted);
  text-align: center;
  padding: 24px;
}
.founder-photo.placeholder svg { width: 48px; height: 48px; opacity: 0.5; }
.founder-photo.placeholder span { font-size: 0.82rem; font-weight: 600; font-family: var(--font-heading); }
.founder-name { font-size: 1.4rem; margin-bottom: 2px; }
.founder-title { color: var(--color-gold-dark); font-weight: 600; font-family: var(--font-heading); font-size: 0.9rem; margin-bottom: 18px; }
.founder-bio p { margin-bottom: 16px; color: var(--color-text); }
.founder-note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* ============ Brand chips (equipment) ============ */
.brand-chip-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.brand-chip {
  padding: 14px 24px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-primary);
  background: #fff;
}

/* ============ Page hero (inner pages) ============ */
.page-hero {
  background: var(--color-primary);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 10px; }
.breadcrumb { color: rgba(255,255,255,0.55); font-size: 0.88rem; margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--color-gold); }

/* ============ FAQ ============ */
.faq-item { border-bottom: 1px solid var(--color-border); padding: 22px 0; }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer; font-family: var(--font-heading); font-weight: 600; color: var(--color-primary);
}
.faq-question .plus { font-size: 1.4rem; color: var(--color-gold-dark); transition: transform 0.2s ease; }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p { padding-top: 14px; }

/* ============ Contact ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 28px; }
.contact-info-item .icon-badge {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(18,18,20,0.06); color: var(--color-primary); font-size: 1rem;
}
.contact-info-item h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-info-item p { font-size: 0.92rem; margin: 0; }

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-family: var(--font-heading); font-weight: 600;
  font-size: 0.85rem; margin-bottom: 8px; color: var(--color-primary);
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 13px 16px; border: 1px solid var(--color-border);
  border-radius: 8px; font-family: var(--font-body); font-size: 0.95rem;
  background: #fff; color: var(--color-text);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(198,161,91,0.18);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-note { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 10px; }
#form-status { margin-top: 16px; font-size: 0.9rem; font-weight: 600; }
#form-status.success { color: var(--color-gold-dark); }
#form-status.error { color: #c0392b; }

/* ============ Footer ============ */
.site-footer { background: #000000; color: rgba(255,255,255,0.65); padding: 60px 0 26px; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-grid .logo { color: #fff; margin-bottom: 14px; }
.footer-grid p { color: rgba(255,255,255,0.5); font-size: 0.9rem; }
.footer-col h4 { color: #fff; font-size: 0.86rem; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer-col ul li a:hover { color: var(--color-gold); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 22px; font-size: 0.8rem; flex-wrap: wrap; gap: 12px;
}

/* ============ Utilities ============ */
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-sm { margin-top: 12px; }
.mt-md { margin-top: 28px; }

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 0.82rem; }
}
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .founder-grid { grid-template-columns: 1fr; }
  .founder-photo { max-width: 280px; margin: 0 auto; }
}
@media (max-width: 1040px) {
  .nav-links, .nav-cta .btn-sm { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 720px) {
  .grid-3, .grid-4, .grid-2, .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .cta-band { flex-direction: column; text-align: center; padding: 36px 26px; }
  .statement-band { padding: 44px 26px; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 80px; }
}

/* Mobile nav (open state) */
.nav-links.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 84px;
  left: 0;
  right: 0;
  background: #fff;
  padding: 24px;
  gap: 18px;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}