/* ============================================
   Sol Prime - Energia Solar | Francisco Beltrão/PR
   Identidade: verde (letreiro) + amarelo (sol), fundo branco, visual premium
   ============================================ */

:root {
  --green-900: #1b5e20;
  --green-700: #2e7d32;
  --green-600: #43a047;
  --green-500: #66bb6a;
  --green-100: #c8e6c9;
  --green-50: #e8f5e9;
  --yellow-700: #f9a825;
  --yellow-500: #ffeb3b;
  --yellow-400: #ffee58;
  --yellow-100: #fff9c4;
  --yellow-50: #fffde7;
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #eeeeee;
  --gray-400: #bdbdbd;
  --gray-600: #757575;
  --gray-800: #424242;
  --gray-900: #212121;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 4rem 0; }
.section-alt { background: var(--gray-50); }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--green-900);
  margin: 0 0 0.5rem;
  text-align: center;
}
.section-sub {
  text-align: center;
  color: var(--gray-600);
  margin: 0 0 2.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:focus-visible { outline: 2px solid var(--green-600); outline-offset: 2px; }
.btn-primary {
  background: linear-gradient(135deg, var(--green-600), var(--green-700));
  color: var(--white);
  box-shadow: 0 2px 8px rgba(46, 125, 50, 0.35);
}
.btn-primary:hover { box-shadow: 0 4px 14px rgba(46, 125, 50, 0.45); transform: translateY(-1px); }
.btn-secondary {
  background: var(--white);
  color: var(--green-700);
  border: 2px solid var(--green-600);
}
.btn-secondary:hover { background: var(--green-50); }
.btn-block { width: 100%; }
.btn-header-cta { white-space: nowrap; }

/* Sticky WhatsApp (mobile) */
.sticky-whatsapp {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: #25d366;
  color: var(--white);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  display: none;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.15);
}
@media (max-width: 768px) {
  .sticky-whatsapp { display: block; }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: var(--shadow);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.25rem;
  min-height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--green-800);
  font-weight: 700;
  font-size: 1.25rem;
}
.logo-img {
  display: block;
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  object-position: left center;
}
@media (max-width: 600px) {
  .logo-img { height: 40px; max-width: 140px; }
}
.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav a {
  color: var(--gray-800);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
}
.nav a:hover { color: var(--green-700); }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}
.nav-toggle::before,
.nav-toggle::after {
  content: '';
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--gray-800);
  border-radius: 1px;
  transition: transform 0.2s;
}
.nav-toggle::before { top: 14px; }
.nav-toggle::after { top: 22px; }
.nav-toggle[aria-expanded="true"]::before { transform: rotate(45deg); top: 18px; }
.nav-toggle[aria-expanded="true"]::after { transform: rotate(-45deg); top: 18px; }
.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem 1.25rem;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}
.nav-mobile a {
  padding: 0.75rem 0;
  color: var(--gray-800);
  text-decoration: none;
  font-weight: 500;
}
.nav-mobile a:hover { color: var(--green-700); }
@media (max-width: 900px) {
  .nav, .btn-header-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-mobile:not([hidden]) { display: flex; }
}

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--green-50) 0%, var(--white) 45%, var(--yellow-50) 100%);
  padding: 3rem 0 4rem;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--green-900);
  line-height: 1.2;
  margin: 0 0 1rem;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--gray-600);
  margin: 0 0 1.5rem;
  max-width: 480px;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}
.hero-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}
.hero-benefits li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
  font-size: 0.9375rem;
}
.hero-benefits li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-600);
}
.hero-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; }
}

/* Steps - Como funciona */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  counter-reset: step;
}
.step {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: var(--white);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--green-900);
  margin: 0 0 0.5rem;
}
.step p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  margin: 0;
}
@media (max-width: 700px) {
  .steps { grid-template-columns: 1fr; }
}

/* Cards - Vantagens */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-100);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card-icon { font-size: 2rem; display: block; margin-bottom: 0.75rem; }
.card h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--green-900);
  margin: 0 0 0.5rem;
}
.card p { font-size: 0.875rem; color: var(--gray-600); margin: 0; }

/* Calculator */
.calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.calculator-inputs label,
.calculator-inputs input,
.calculator-inputs select {
  display: block;
  width: 100%;
}
.calculator-inputs label {
  font-weight: 600;
  color: var(--gray-800);
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}
.calculator-inputs label:first-of-type { margin-top: 0; }
.calculator-inputs input,
.calculator-inputs select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-sans);
}
.calculator-inputs input:focus,
.calculator-inputs select:focus {
  outline: none;
  border-color: var(--green-600);
  box-shadow: 0 0 0 3px rgba(67, 160, 71, 0.15);
}
.input-hint {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-top: 0.25rem;
}
.calculator-inputs input[type="range"] {
  width: 100%;
  height: 8px;
  accent-color: var(--green-600);
  margin-top: 0.25rem;
}
.calculator-disclaimer {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-top: 1.25rem;
  margin-bottom: 0;
}
.calculator-results {
  background: var(--gray-50);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.9375rem;
}
.result-row:last-of-type { border-bottom: none; }
.result-row.highlight { border-bottom-color: var(--green-100); }
.result-row.highlight strong { color: var(--green-700); font-size: 1.25rem; }
.result-row strong { color: var(--green-900); }
.result-note {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin: 0 0 0.75rem;
}
.result-row.system { margin-top: 0.5rem; padding-top: 0.75rem; border-top: 1px dashed var(--gray-300); }
#cta-orcamento-calc { margin-top: 1rem; }
@media (max-width: 700px) {
  .calculator { grid-template-columns: 1fr; }
}

/* Diferenciais */
.diferenciais-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 640px;
  margin: 0 auto;
}
.diferenciais-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 1rem;
  color: var(--gray-700);
}
.diferenciais-list li:last-child { border-bottom: none; }
.diferenciais-list strong { color: var(--green-800); }

/* Depoimentos */
.depoimentos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.depoimento {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin: 0;
  border-left: 4px solid var(--green-500);
}
.depoimento p {
  font-size: 0.9375rem;
  color: var(--gray-700);
  margin: 0 0 1rem;
  font-style: italic;
}
.depoimento footer {
  font-size: 0.875rem;
  color: var(--gray-600);
}
.depoimento cite { font-style: normal; font-weight: 600; color: var(--green-800); }

/* Instagram */
.instagram-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.instagram-grid .instagram-media {
  margin: 0 auto;
}
@media (min-width: 700px) {
  .instagram-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    justify-items: center;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Accordion FAQ */
.accordion { max-width: 680px; margin: 0 auto; }
.accordion-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  overflow: hidden;
  background: var(--white);
}
.accordion-item:first-of-type { margin-top: 0; }
.accordion-trigger {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--green-900);
  background: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.accordion-trigger::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--green-600);
  flex-shrink: 0;
  margin-left: 0.5rem;
}
.accordion-trigger[aria-expanded="true"]::after { content: '−'; }
.accordion-trigger:hover { background: var(--gray-50); }
.accordion-trigger:focus-visible { outline: 2px solid var(--green-600); outline-offset: -2px; }
.accordion-panel p {
  margin: 0;
  padding: 0 1.25rem 1rem;
  padding-top: 0;
  font-size: 0.9375rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* Contato + Form */
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
.contato-info p { margin: 0 0 1rem; color: var(--gray-700); }
.contato-info a { color: var(--green-700); font-weight: 600; }
.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1rem;
  box-shadow: var(--shadow);
}
.map-wrap iframe { display: block; }
.form-wrap h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--green-900);
  margin: 0 0 1rem;
}
.form-lgpd {
  font-size: 0.8125rem;
  color: var(--gray-600);
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--gray-50);
  border-radius: var(--radius);
}
.form-lgpd a { color: var(--green-700); }
.form-lead label {
  display: block;
  font-weight: 600;
  margin-top: 1rem;
  margin-bottom: 0.35rem;
  color: var(--gray-800);
}
.form-lead label:first-of-type { margin-top: 0; }
.form-lead input,
.form-lead textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 1rem;
}
.form-lead input:focus,
.form-lead textarea:focus {
  outline: none;
  border-color: var(--green-600);
}
.form-lead textarea { resize: vertical; min-height: 80px; }
.form-lead button[type="submit"] { margin-top: 1.25rem; }
@media (max-width: 700px) {
  .contato-grid { grid-template-columns: 1fr; }
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-logo-img {
  display: block;
  height: 56px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 0.5rem;
}
.footer-brand p { margin: 0.5rem 0 0; font-size: 0.9375rem; }
.footer-links a { color: var(--green-400); }
.footer-links span { font-size: 0.9375rem; }
.footer-legal a { color: var(--gray-400); text-decoration: underline; }
.footer-copy {
  font-size: 0.875rem;
  text-align: center;
  margin: 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-700);
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-logo-img { margin-left: auto; margin-right: auto; height: 48px; }
}

/* Modal política */
.modal-politica {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-politica[hidden] { display: none; }
.modal-inner {
  background: var(--white);
  max-width: 520px;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-inner h2 { margin-top: 0; color: var(--green-900); }
.modal-inner p { font-size: 0.9375rem; color: var(--gray-700); }
.modal-inner .btn { margin-top: 1rem; }