/* ============================================
   CPES - Climate Positive Energy Solutions
   Shared stylesheet
   ============================================ */

/* ---------- Design tokens (dark navy / gold theme) ---------- */
:root {
  --teal: #d4a548;
  --teal-dark: #b8902f;
  --terracotta: #d4a548;
  --terracotta-dark: #b8902f;
  --cream: #0a0e1a;
  --sand: rgba(255, 255, 255, 0.08);
  --charcoal: #131826;
  --charcoal-soft: #1a2030;
  --white: #131826;
  --text: #f4f3ee;
  --muted: #9ca3af;

  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);

  --nav-h: 76px;

  --container: 1200px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--teal); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--terracotta); }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--text);
  overflow-wrap: break-word;
  hyphens: auto;
}
h1 { font-size: clamp(40px, 6vw, 72px); letter-spacing: -0.02em; }
h2 { font-size: clamp(30px, 4vw, 48px); letter-spacing: -0.015em; }
h3 { font-size: clamp(22px, 2.4vw, 28px); letter-spacing: -0.01em; }
h4 { font-size: 18px; letter-spacing: 0; }
p { margin: 0 0 16px; }

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

/* ---------- Sticky nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--sand);
  z-index: 100;
  display: flex;
  align-items: center;
}
.nav-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img, .nav-logo svg { height: 36px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 0;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 2px;
  background: var(--terracotta);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--terracotta);
  color: var(--white) !important;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  transition: background .2s ease, transform .2s ease;
}
.nav-cta:hover { background: var(--terracotta-dark); color: var(--white) !important; transform: translateY(-1px); }
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 26px;
  color: var(--text);
  padding: 6px 10px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 0;
  cursor: pointer;
  transition: transform .2s, background .2s, box-shadow .2s;
}
.btn-primary { background: var(--terracotta); color: var(--white); }
.btn-primary:hover { background: var(--terracotta-dark); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--teal); color: var(--white); }
.btn-secondary:hover { background: var(--teal-dark); color: var(--white); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--teal); border: 1.5px solid var(--teal); }
.btn-ghost:hover { background: var(--teal); color: var(--white); }

/* ---------- Page hero ---------- */
.page-hero {
  padding: calc(var(--nav-h) + 64px) 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero .container { position: relative; z-index: 2; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}
.lede {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--muted);
  max-width: 720px;
  line-height: 1.6;
  margin: 0 0 32px;
}

/* Climate Positive pill */
.cp-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 165, 72, 0.12);
  color: var(--teal);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(212, 165, 72, 0.3);
}

/* Decorative sun-leaf motif */
.deco-mark {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
}
.deco-mark.tr { top: -80px; right: -80px; width: 380px; }
.deco-mark.bl { bottom: -100px; left: -120px; width: 320px; }

/* ---------- Hero strip (6 numbers) ---------- */
.stat-strip {
  background: var(--teal);
  padding: 64px 0;
  position: relative;
  z-index: 3;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
}
.stat-tile {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 8px;
  text-align: left;
  border-left: 2px solid rgba(248, 244, 237, 0.2);
}
.stat-tile:first-child { border-left: 0; padding-left: 0; }
.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 3.6vw, 56px);
  line-height: 1;
  color: var(--terracotta);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}

/* ---------- Section ---------- */
section { padding: 96px 0; position: relative; }
section.alt { background: var(--white); }
.section-header { max-width: 720px; margin: 0 auto 48px; text-align: center; }

/* ---------- Service pillars grid ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.pillar-card {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.pillar-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--teal); }
.pillar-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--terracotta);
  letter-spacing: 0.1em;
}
.pillar-card h3 { margin: 0; }
.pillar-card p { color: var(--muted); margin: 0; }

/* ---------- About sections ---------- */
.about-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 48px 0;
  border-top: 1px solid var(--sand);
}
.about-block:first-of-type { border-top: 0; padding-top: 0; }
.about-block .eyebrow { margin: 0; padding-top: 6px; }
.about-block p {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text);
  margin: 0;
}

/* Principal contact tile */
.principal-tile {
  background: var(--charcoal);
  color: var(--text);
  padding: 32px;
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin-top: 64px;
}
.principal-tile h4 { color: var(--text); margin: 0 0 6px; }
.principal-tile .role { color: var(--terracotta); font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase; }
.principal-tile .meta { color: rgba(248, 244, 237, 0.75); font-size: 14px; margin-top: 8px; }
.principal-tile .meta a { color: var(--text); }
.principal-tile .meta a:hover { color: var(--terracotta); }

/* ---------- Approach stepper ---------- */
.steps { display: flex; flex-direction: column; gap: 24px; }
.step {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 24px;
  align-items: center;
  text-decoration: none;
  color: inherit;
}
.approach-cta {
  margin: 32px auto 0;
  text-align: center;
  font-size: 14px;
}
.approach-cta a {
  color: var(--teal);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.approach-cta a:hover {
  border-bottom-color: var(--teal);
  color: var(--teal);
}
.step-num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--teal);
  color: #0a0e1a;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px; font-weight: 800;
}
.step:nth-child(even) .step-num { background: var(--terracotta); }
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); }
.step .gate {
  background: var(--sand);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* ---------- Capabilities grid ---------- */
.cap-section {
  padding: 64px 0;
  border-top: 1px solid var(--sand);
}
.cap-section:first-child { border-top: 0; padding-top: 0; }
.cap-section h3 { margin-bottom: 8px; }
.cap-tiles {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.cap-tile {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius);
  padding: 24px;
  font-size: 15px;
}
.cap-tile strong { color: var(--teal); display: block; margin-bottom: 6px; }

/* ---------- Contact form & calendly ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-card h3 { margin-bottom: 8px; }
.form-stack { display: flex; flex-direction: column; gap: 20px; margin-top: 24px; }
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { font-size: 13px; font-weight: 600; color: var(--text); letter-spacing: 0.04em; }
.form-row input, .form-row select, .form-row textarea {
  padding: 14px 16px;
  border: 1.5px solid var(--sand);
  border-radius: var(--radius);
  background: var(--cream);
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  transition: border-color .2s, background .2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--teal);
  background: var(--white);
}
.form-row textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 8px; }

.calendly-card {
  background: var(--charcoal);
  color: var(--text);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.calendly-card h3 { color: var(--text); }
.calendly-card p { color: rgba(248, 244, 237, 0.8); margin: 0; }

.contact-direct {
  margin-top: 48px;
  background: var(--sand);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}
.contact-direct .item h4 { margin: 0 0 8px; font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal); }
.contact-direct .item p { margin: 0; color: var(--text); font-size: 16px; }

/* ---------- Legal pages ---------- */
.legal-prose { max-width: 760px; }
.legal-prose h2 { margin-top: 40px; font-size: 26px; }
.legal-prose h2:first-of-type { margin-top: 0; }
.legal-prose p, .legal-prose li { font-size: 16px; line-height: 1.75; color: var(--text); }
.legal-prose ul { padding-left: 22px; }
.legal-prose .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; display: block; }

/* ---------- Code of Conduct ---------- */
.principles { display: flex; flex-direction: column; gap: 24px; margin-top: 24px; }
.principle {
  background: var(--white);
  border-left: 4px solid var(--terracotta);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  align-items: start;
}
.principle .pn {
  width: 48px; height: 48px;
  background: var(--teal);
  color: #0a0e1a;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
}
.principle h3 { color: var(--teal); margin: 0 0 8px; font-size: 22px; }
.principle p { margin: 0; color: var(--text); }

/* ---------- Footer ---------- */
footer {
  background: var(--charcoal);
  color: var(--text);
  padding: 64px 0 24px;
  margin-top: 64px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 32px;
}
.foot-col h5 {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin: 0 0 16px;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { color: var(--text); font-size: 14px; }
.foot-col a:hover { color: var(--terracotta); }
.foot-brand img { height: 40px; width: auto; filter: brightness(0) invert(1); margin-bottom: 16px; }
.foot-brand p { color: rgba(248, 244, 237, 0.7); font-size: 14px; max-width: 320px; margin: 0; }
.foot-bottom {
  border-top: 1px solid rgba(248, 244, 237, 0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(248, 244, 237, 0.65);
}
.foot-bottom em { font-style: italic; }

/* ---------- Hero CTA layout ---------- */
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.hero-art {
  aspect-ratio: 1 / 1;
  background: transparent;
  border-radius: 0;
}
.hero-art img { width: 70%; }

/* ---------- Why-CPES grid ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.why-tile {
  background: var(--sand);
  border-radius: var(--radius);
  padding: 28px;
}
.why-tile h4 { color: var(--teal); margin: 0 0 8px; font-size: 18px; }
.why-tile p { margin: 0; color: var(--text); font-size: 15px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .stat-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .stat-tile { border-left: 0; padding-left: 8px; }
  .hero-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-block { grid-template-columns: 1fr; gap: 16px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .step { grid-template-columns: 56px 1fr; }
  .step .gate { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 640px) {
  :root { --nav-h: 64px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--cream);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--sand);
    gap: 16px;
    align-items: flex-start;
  }
  .nav.open .nav-cta { display: inline-flex; margin-top: 8px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .foot-grid { grid-template-columns: 1fr; gap: 24px; }
  section { padding: 64px 0; }
  .principal-tile, .step, .principle { grid-template-columns: 1fr; }
  .step-num, .principle .pn { margin-bottom: 4px; }
}