/* =========================================================
   Capital BER Solutions — Design System
   Colors: Deep Slate / Emerald Green / Amber (conversion CTAs only)
   Typography: Inter / system-ui
   ========================================================= */

:root {
  --color-slate: #1E293B;
  --color-slate-light: #334155;
  --color-emerald: #10B981;
  --color-emerald-dark: #059669;
  --color-amber: #F59E0B;
  --color-amber-dark: #D97706;
  --color-bg: #F8FAFC;
  --color-white: #FFFFFF;
  --color-text: #1E293B;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  --color-soft: rgba(16, 185, 129, 0.07);
  --color-panel: #F1F5F9;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.16);

  --container-width: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-emerald-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--color-slate);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }

p { margin: 0 0 1em; color: var(--color-text-muted); }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: clamp(2.5rem, 6vw, 5rem) 0; }
.section-bg-slate {
  background: var(--color-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header { text-align: center; max-width: 720px; margin: 0 auto 2.5rem; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-emerald);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

/* Amber is reserved strictly for tracked conversion actions (call, WhatsApp, form submit) */
.btn-conversion {
  background: var(--color-amber);
  color: var(--color-slate);
  box-shadow: var(--shadow-md);
}
.btn-conversion:hover { background: var(--color-amber-dark); }

.btn-secondary {
  background: transparent;
  border-color: var(--color-slate);
  color: var(--color-slate);
}
.btn-secondary:hover { background: var(--color-slate); color: var(--color-white); }

.btn-outline {
  background: transparent;
  border-color: var(--color-emerald);
  color: var(--color-emerald-dark);
}
.btn-outline:hover { background: var(--color-emerald); color: var(--color-white); }

/* -------------------- Header / Nav -------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-logo { height: 80px; width: auto; display: block; }

/* Nav is hamburger-only at every breakpoint: the toggle button always
   opens the same dropdown panel instead of showing a persistent link row. */

.header-rating {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
@media (min-width: 1024px) {
  .header-rating { display: inline-flex; }
}
.header-rating-stars {
  color: var(--color-amber);
  font-size: 0.85rem;
  letter-spacing: 1px;
}
.header-rating-score {
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--color-slate);
}
.header-rating-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
}

.header-cta { display: none; }

.header-calc-btn {
  display: none;
  background: var(--color-emerald);
  color: var(--color-white);
  border: none;
  font-weight: 800;
}
.header-calc-btn:hover { background: var(--color-emerald-dark); }

@media (min-width: 900px) {
  .header-cta { display: inline-flex; }
  .header-calc-btn {
    display: inline-flex;
    padding: 1rem 2rem;
    font-size: 1.05rem;
  }
}

/* Mobile nav panel (the sole nav menu, toggled by the hamburger at any width) */
.mobile-nav-panel {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
}
.mobile-nav-panel.is-open { display: block; }
.mobile-nav-panel ul { display: flex; flex-direction: column; padding: 0.5rem 1.25rem 1rem; }
.mobile-nav-panel a {
  display: block;
  padding: 0.65rem 0;
  color: var(--color-slate);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

/* -------------------- Hero -------------------- */
.hero {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-soft) 100%);
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.hero .container {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero .container { grid-template-columns: 1.1fr 0.9fr; }
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-emerald-dark);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero h1 { margin-bottom: 0.75rem; }
.hero p.lede { color: var(--color-text-muted); font-size: 1.1rem; max-width: 42ch; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

.hero-image { display: none; }
@media (min-width: 960px) {
  .hero-image {
    display: block;
    position: relative;
  }
}
.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2.25rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.hero-trust strong { color: var(--color-slate); }

/* -------------------- Card Grids -------------------- */
.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-emerald-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

/* Journey steps */
.steps {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
  counter-reset: step;
}

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

.step { position: relative; padding-left: 3.25rem; }
.step-number {
  position: absolute;
  left: 0; top: 0;
  width: 2.25rem; height: 2.25rem;
  border-radius: 50%;
  background: var(--color-emerald);
  color: var(--color-white);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* -------------------- Quote Form -------------------- */
.quote-section {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-border);
}

.form-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid .field-full { grid-column: 1 / -1; }
}

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-weight: 600; font-size: 0.9rem; color: var(--color-slate); }

.field input,
.field select,
.field textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.quote-section .btn-conversion { width: 100%; margin-top: 0.5rem; font-size: 1.05rem; }

@media (min-width: 640px) {
  .quote-section .btn-conversion { width: auto; }
}

.field-optional { font-weight: 400; color: var(--color-text-muted); font-size: 0.82rem; }

/* -------------------- BER Calculator -------------------- */
.calc-route-select { margin-top: 2rem; }
.calc-route-select h3,
.calc-individual-measures h3 { margin-bottom: 1rem; }

.route-options {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .route-options { grid-template-columns: repeat(2, 1fr); }
}

.route-option {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.1rem 1.25rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.route-option:has(input:checked) {
  border-color: var(--color-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
.route-option input { margin-right: 0.5rem; }
.route-option-title { font-weight: 700; color: var(--color-slate); }
.route-option-desc { font-size: 0.88rem; color: var(--color-text-muted); }

.calc-individual-measures { margin-top: 2rem; }

.measures-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .measures-grid { grid-template-columns: repeat(2, 1fr); }
}

.measure-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.15rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.measure-card:has(input:checked) {
  border-color: var(--color-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
.measure-card input { margin-right: 0.5rem; }
.measure-card-title { font-weight: 700; color: var(--color-slate); font-size: 0.95rem; }
.measure-card-meta { font-size: 0.8rem; color: var(--color-text-muted); }

.calc-inline-error {
  color: #B91C1C;
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: 0.75rem;
}

.calc-note {
  margin-top: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: var(--color-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-slate);
}

.calc-results {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.stat-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 1.5rem;
}
@media (min-width: 768px) {
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-tile {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
}
.stat-tile-highlight {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.3);
}
.stat-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}
.stat-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-slate);
}

.calc-disclaimer {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 1.5rem;
}

.calc-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1rem;
}

/* -------------------- Footer (E-E-A-T) -------------------- */
.site-footer {
  background: var(--color-panel);
  color: var(--color-text-muted);
  padding: clamp(2.5rem, 5vw, 4rem) 0 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
}

.footer-heading {
  color: var(--color-slate);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-nav a,
.footer-eeat p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.footer-nav ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-nav a:hover { color: var(--color-emerald-dark); }

.footer-eeat p { margin-bottom: 0.6rem; }
.footer-eeat strong { color: var(--color-slate); }

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-badge {
  width: 64px;
  height: 64px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  text-align: center;
  color: var(--color-text-muted);
  padding: 0.25rem;
}

.footer-badge-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.9rem;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.footer-badge-link:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.footer-badge-link img { height: 40px; width: auto; display: block; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* -------------------- Footer Reviews Widget -------------------- */
.footer-reviews {
  padding-top: 2rem;
  margin-top: 0.5rem;
}
.footer-reviews .footer-heading { text-align: center; margin-bottom: 1.25rem; }

/* -------------------- Placeholder page (stub) -------------------- */
.placeholder-section {
  min-height: 50vh;
  display: flex;
  align-items: center;
}

/* =========================================================
   Animations — page load entrance + scroll reveal
   ========================================================= */

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* Header entrance */
.site-header { animation: fadeSlideDown 0.5s ease both; }

/* Hero entrance (homepage + inside-page heroes), staggered */
.hero-eyebrow { animation: fadeSlideUp 0.6s ease 0.05s both; }
.hero-copy h1,
.page-hero h1 { animation: fadeSlideUp 0.7s ease 0.15s both; }
.hero-copy p.lede,
.page-hero p.lede { animation: fadeSlideUp 0.7s ease 0.25s both; }
.hero-copy .hero-actions,
.page-hero .hero-actions { animation: fadeSlideUp 0.7s ease 0.35s both; }
.hero-trust { animation: fadeSlideUp 0.7s ease 0.45s both; }
.hero-image { animation: scaleFadeIn 0.9s ease 0.3s both; }
.page-hero .breadcrumbs { animation: fadeSlideUp 0.5s ease both; }

/* Scroll reveal — .reveal class is added by main.js (progressive enhancement,
   content stays visible if JS doesn't run); .is-visible triggers the transition. */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.grid .reveal:nth-child(1), .steps .reveal:nth-child(1), .service-list .reveal:nth-child(1) { transition-delay: 0s; }
.grid .reveal:nth-child(2), .steps .reveal:nth-child(2), .service-list .reveal:nth-child(2) { transition-delay: 0.08s; }
.grid .reveal:nth-child(3), .steps .reveal:nth-child(3), .service-list .reveal:nth-child(3) { transition-delay: 0.16s; }
.grid .reveal:nth-child(4), .service-list .reveal:nth-child(4) { transition-delay: 0.24s; }
.grid .reveal:nth-child(5) { transition-delay: 0.32s; }

.faq-list .reveal:nth-child(1) { transition-delay: 0s; }
.faq-list .reveal:nth-child(2) { transition-delay: 0.06s; }
.faq-list .reveal:nth-child(3) { transition-delay: 0.12s; }
.faq-list .reveal:nth-child(4) { transition-delay: 0.18s; }

/* Respect reduced-motion preference: disable all decorative animation */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .hero-eyebrow,
  .hero-copy h1, .page-hero h1,
  .hero-copy p.lede, .page-hero p.lede,
  .hero-copy .hero-actions, .page-hero .hero-actions,
  .hero-trust,
  .hero-image,
  .page-hero .breadcrumbs {
    animation: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* -------------------- Page Hero (inside pages) -------------------- */
.page-hero {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-soft) 100%);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}
.page-hero h1 { margin-bottom: 0.5rem; }
.page-hero p.lede { color: var(--color-text-muted); max-width: 62ch; font-size: 1.05rem; margin-bottom: 0; }
.page-hero .hero-actions { margin-top: 1.5rem; }

/* -------------------- Breadcrumbs -------------------- */
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs a:hover { color: var(--color-emerald-dark); }

/* -------------------- FAQ Accordion -------------------- */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.25rem 1.25rem;
  margin-bottom: 1rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--color-slate);
  padding: 1rem 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-emerald-dark);
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { padding-bottom: 1.1rem; margin: 0; }

/* -------------------- Bio Section -------------------- */
.bio {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 768px) {
  .bio { grid-template-columns: 280px 1fr; }
}
.bio-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
  border: 1px solid var(--color-border);
}

/* -------------------- Principles Grid -------------------- */
.principle-card { text-align: left; }

/* -------------------- Geo-Targeting Grid -------------------- */
.geo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.geo-chip {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-slate);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

/* -------------------- Service List (icon + text rows) -------------------- */
.service-list { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .service-list { grid-template-columns: repeat(2, 1fr); } }
.service-row { display: flex; gap: 1rem; align-items: flex-start; }
.service-row .card-icon { flex-shrink: 0; margin-bottom: 0; }