/* =========================================================================
   SOLAR CENRED — Stylesheet
   Light theme · Inter font · Mobile-first responsive · Flat design
   ========================================================================= */

/* ---------- Design tokens ---------- */
:root {
  --color-primary: #F5A623;          /* solar orange */
  --color-primary-dark: #d68a10;
  --color-primary-light: #ffd385;
  --color-secondary: #27AE60;        /* clean green */
  --color-secondary-dark: #1f8c4d;
  --color-text: #2C3E50;             /* dark charcoal */
  --color-text-soft: #5d6d7e;
  --color-text-muted: #95a5a6;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FA;
  --color-border: #e3e6ea;
  --color-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --color-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;

  --container-max: 1200px;
  --header-height: 72px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p  { margin: 0 0 var(--space-sm); color: var(--color-text-soft); }

button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

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

.section { padding: var(--space-xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
}
.section-title h2 { margin-bottom: var(--space-xs); }
.section-title p { color: var(--color-text-muted); max-width: 640px; margin: 0 auto; }

.text-center { text-align: center; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245, 166, 35, 0.35);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}
.btn-secondary:hover {
  background: var(--color-text);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-ghost:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn-lg { padding: 18px 36px; font-size: 1rem; }
.btn-block { display: flex; width: 100%; justify-content: center; }

/* ---------- Navigation ---------- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
nav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--color-shadow);
  backdrop-filter: blur(10px);
}
.nav-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}
.nav-logo:hover { color: var(--color-primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 4px;
  position: relative;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.nav-cta {
  margin-left: var(--space-sm);
}
.hamburger {
  display: none;
  width: 28px; height: 22px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}
.hamburger span {
  display: block;
  height: 3px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition);
}
#mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0;
  background: #fff;
  box-shadow: var(--color-shadow);
  padding: var(--space-md);
  z-index: 99;
}
#mobile-menu.open { display: flex; flex-direction: column; gap: var(--space-sm); }
#mobile-menu a {
  color: var(--color-text);
  font-weight: 500;
  padding: 12px;
  border-radius: var(--radius-md);
}
#mobile-menu a:hover { background: var(--color-bg-alt); }

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #ffb347 0%, #ffd180 50%, #fff7e6 100%);
  padding-top: var(--header-height);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.55);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  text-align: center;
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.hero h1 {
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.hero p.lead {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}
.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.5rem;
  color: var(--color-text);
  animation: bounce 2s infinite;
  z-index: 2;
}
@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}

/* sub-page hero */
.page-hero {
  min-height: 300px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #ffb347 0%, #ffd180 100%);
  padding-top: var(--header-height);
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.45);
}
.page-hero { position: relative; }
.page-hero .container { position: relative; z-index: 2; }

/* ---------- Stats bar ---------- */
.stats-bar {
  background: var(--color-text);
  color: #fff;
  padding: var(--space-lg) 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  text-align: center;
}
.stat-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
}
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Card grid ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--color-shadow-lg);
}
.card-icon {
  width: 56px; height: 56px;
  display: inline-flex;
  align-items: center; justify-content: center;
  background: rgba(245, 166, 35, 0.12);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 1.6rem;
  margin-bottom: var(--space-sm);
}
.card h3 { margin-bottom: 8px; }
.card p { font-size: 0.95rem; }

/* ---------- How it works (steps) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 32px; left: 12%; right: 12%;
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}
.step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px var(--color-primary);
}
@media (max-width: 768px) {
  .steps { grid-template-columns: 1fr; }
  .steps::before {
    top: 0; bottom: 0;
    left: 32px; right: auto;
    width: 2px; height: auto;
  }
  .step { display: grid; grid-template-columns: 64px 1fr; gap: var(--space-sm); text-align: left; align-items: start; }
  .step-num { margin: 0; }
}

/* ---------- System types ---------- */
.system-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.system-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.system-card.featured {
  border: 2px solid var(--color-primary);
  position: relative;
}
.system-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}
.system-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--color-shadow-lg);
}
.system-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.system-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
  flex: 1;
}
.system-card ul li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-soft);
}
.system-card ul li:last-child { border-bottom: none; }
@media (max-width: 768px) {
  .system-grid { grid-template-columns: 1fr; }
}

/* ---------- Calculator ---------- */
.calculator {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--color-shadow);
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.calc-controls label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.calc-controls input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-pill);
  appearance: none;
  background: var(--color-bg-alt);
  outline: none;
  margin-bottom: var(--space-md);
}
.calc-controls input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.currency-toggle {
  display: inline-flex;
  background: var(--color-bg-alt);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: var(--space-md);
}
.currency-toggle button {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}
.currency-toggle button.active {
  background: var(--color-primary);
  color: #fff;
}
.calc-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}
.calc-result-card {
  background: var(--color-bg-alt);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
}
.calc-result-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.calc-result-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
@media (max-width: 768px) {
  .calc-grid { grid-template-columns: 1fr; }
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.testimonial {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}
.testimonial p {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
}
.testimonial-name { font-weight: 600; font-size: 0.95rem; }
.testimonial-loc  { font-size: 0.85rem; color: var(--color-text-muted); }
@media (max-width: 768px) { .testimonials-grid { grid-template-columns: 1fr; } }

/* ---------- Brand strip ---------- */
.brand-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
}
.brand-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  transition: color var(--transition);
}
.brand-logo:hover { color: var(--color-primary); }

/* ---------- Footer ---------- */
footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
footer h4 {
  color: #fff;
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}
footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
footer ul li {
  margin-bottom: 8px;
  font-size: 0.9rem;
}
footer a { color: rgba(255,255,255,0.85); }
footer a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.form-group {
  margin-bottom: var(--space-sm);
}
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.9rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
}
.radio-group { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.radio-group label { display: flex; align-items: center; gap: 6px; font-weight: 400; cursor: pointer; }
.form-success {
  background: rgba(39, 174, 96, 0.1);
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary-dark);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  display: none;
}
.form-success.show { display: block; }
@media (max-width: 768px) { .form-row { grid-template-columns: 1fr; } }

/* ---------- Contact info cards ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.info-card {
  background: #fff;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: left;
}
.info-card h4 { color: var(--color-primary); }
.info-card p { font-size: 0.95rem; margin-bottom: 6px; }
@media (max-width: 768px) { .info-grid { grid-template-columns: 1fr; } }

/* ---------- Gallery ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  justify-content: center;
  margin-bottom: var(--space-lg);
}
.filter-btn {
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
@media (max-width: 900px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .gallery-grid { grid-template-columns: 1fr; } }

.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  color: var(--color-text);
  font-weight: 600;
}
.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--color-shadow-lg);
}
.gallery-item::after {
  content: 'View Project';
  position: absolute;
  inset: 0;
  background: rgba(245, 166, 35, 0.85);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover::after { opacity: 1; }
.gallery-item span { z-index: 1; position: relative; padding: var(--space-sm); }

.bg-warm-1 { background: linear-gradient(135deg, #ffd9a8, #ffb380); }
.bg-warm-2 { background: linear-gradient(135deg, #ffeaa8, #ffd180); }
.bg-warm-3 { background: linear-gradient(135deg, #ffe0b3, #ffc080); }
.bg-warm-4 { background: linear-gradient(135deg, #ffd4a3, #f5a623); }
.bg-neutral-1 { background: linear-gradient(135deg, #e8e2d4, #d6cfbf); }
.bg-neutral-2 { background: linear-gradient(135deg, #efe7d4, #d9c9a8); }
.bg-neutral-3 { background: linear-gradient(135deg, #e6d9b8, #c9b48a); }

/* ---------- Lightbox ---------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}
.lightbox-content {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 600px;
  width: 100%;
  position: relative;
}
.lightbox-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 40px; height: 40px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-text);
}

/* ---------- Before/After ---------- */
.before-after-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.ba-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.ba-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.ba-half {
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1.25rem;
}
.ba-before { background: linear-gradient(135deg, #95a5a6, #7f8c8d); }
.ba-after  { background: linear-gradient(135deg, #f5a623, #ff8c00); }
.ba-info { padding: var(--space-md); font-size: 0.9rem; }
.ba-info strong { color: var(--color-primary); }
@media (max-width: 768px) { .before-after-grid { grid-template-columns: 1fr; } }

/* ---------- Video placeholder ---------- */
.video-placeholder {
  background: linear-gradient(135deg, #2c3e50, #4a6680);
  color: #fff;
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  position: relative;
  cursor: pointer;
}
.video-play-icon {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  color: #fff;
  margin-bottom: var(--space-sm);
  transition: transform var(--transition);
}
.video-placeholder:hover .video-play-icon { transform: scale(1.1); }

/* ---------- Team / About ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.team-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  border: 1px solid var(--color-border);
}
.team-avatar {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto var(--space-sm);
}
.team-role { color: var(--color-primary); font-weight: 500; font-size: 0.9rem; margin-bottom: 8px; }
.team-bio  { font-size: 0.9rem; }
@media (max-width: 768px) { .team-grid { grid-template-columns: 1fr; } }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-sm);
}
.cert-badge {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  text-align: center;
  font-weight: 500;
  font-size: 0.9rem;
  transition: border-color var(--transition);
}
.cert-badge:hover { border-color: var(--color-primary); }

.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
@media (max-width: 768px) { .values-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- CTA section ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #ff8c00 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  margin: var(--space-lg) 0;
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,0.95); }
.cta-banner .btn-primary {
  background: #fff;
  color: var(--color-primary);
}
.cta-banner .btn-primary:hover { background: var(--color-bg-alt); color: var(--color-primary-dark); }

/* ---------- Blog ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.blog-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--color-shadow-lg);
}
.blog-thumb {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.blog-body { padding: var(--space-md); }
.blog-tag {
  display: inline-block;
  background: rgba(245, 166, 35, 0.15);
  color: var(--color-primary-dark);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.blog-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}
.blog-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
@media (max-width: 768px) { .blog-grid { grid-template-columns: 1fr; } }

.newsletter {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}
.newsletter form {
  display: flex;
  gap: var(--space-xs);
  max-width: 460px;
  margin: 0 auto;
}
.newsletter input {
  flex: 1;
  padding: 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}
@media (max-width: 600px) {
  .newsletter form { flex-direction: column; }
  .newsletter input, .newsletter button { width: 100%; }
}

/* ---------- Animation utilities ---------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================================
   CHAT BOT
   ========================================================================= */

#chat-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4);
  z-index: 999;
  transition: transform var(--transition);
}
#chat-fab:hover { transform: scale(1.08); }
#chat-fab.pulse {
  animation: chatPulse 2s infinite;
}
@keyframes chatPulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4); }
  50%      { box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4), 0 0 0 16px rgba(245, 166, 35, 0); }
}
#chat-notification-dot {
  position: absolute;
  top: 4px; right: 4px;
  width: 14px; height: 14px;
  background: #e74c3c;
  border-radius: 50%;
  border: 2px solid #fff;
  display: none;
}
#chat-notification-dot.show { display: block; }

#chat-window {
  position: fixed;
  right: 24px;
  bottom: 96px;
  width: 360px;
  height: 540px;
  max-height: calc(100vh - 120px);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1000;
  border: 1px solid var(--color-border);
}

#chat-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #ff8c00 100%);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
#chat-avatar {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.25);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
#chat-name { font-weight: 600; font-size: 0.95rem; }
#chat-status { font-size: 0.75rem; opacity: 0.9; }
#chat-header-actions { display: flex; gap: 4px; }
#chat-header-actions button {
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: background var(--transition);
}
#chat-header-actions button:hover { background: rgba(255,255,255,0.3); }

#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm);
  background: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.message {
  max-width: 85%;
  padding: 10px 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  border-radius: var(--radius-md);
  word-wrap: break-word;
}
.message-bot {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-top-left-radius: 4px;
  align-self: flex-start;
}
.message-user {
  background: var(--color-primary);
  color: #fff;
  border-top-right-radius: 4px;
  align-self: flex-end;
}
.typing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 14px;
}
.typing-indicator span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: typingBounce 1.2s infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-6px); opacity: 1; }
}

#quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px var(--space-sm);
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}
.quick-reply-btn {
  padding: 6px 12px;
  background: #fff;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.quick-reply-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

#chat-input-area {
  display: flex;
  gap: 8px;
  padding: 10px;
  border-top: 1px solid var(--color-border);
  background: #fff;
}
#chat-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg-alt);
  font-size: 0.9rem;
}
#chat-input:focus {
  outline: none;
  border-color: var(--color-primary);
}
#chat-input-area button {
  width: 40px; height: 40px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
#chat-input-area button:hover { background: var(--color-primary-dark); }

@media (max-width: 600px) {
  #chat-window {
    right: 0; bottom: 0;
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
  }
  #chat-fab {
    right: 16px;
    bottom: 16px;
  }
}

/* ---------- Re-engagement banner pushes content down ---------- */
body.has-banner nav { top: 50px; }
body.has-banner { padding-top: 50px; }