/* ============================================================
   PVC Alucalc Engineering — Main Stylesheet
   Compatible with WordPress / Elementor
   ============================================================ */

/* ----- CSS Custom Properties ----- */
:root {
  --color-primary:     #4A5CF0;
  --color-primary-end: #3A4BD8;
  --color-dark:        #111827;
  --color-navy:        #1D2147;
  --color-text:        #111827;
  --color-muted:       #6B7280;
  --color-light:       #F9FAFB;
  --color-white:       #ffffff;
  --color-border:      #E5E7EB;
  --color-icon-bg:     #EEF0FB;
  --color-star:        #E05D4A;

  --font-family:       'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm:         6px;
  --radius-md:         12px;
  --radius-lg:         20px;
  --radius-pill:       999px;

  --shadow-card:       0 4px 20px rgba(0,0,0,0.08);
  --shadow-header:     0 2px 12px rgba(0,0,0,0.08);

  --max-width:         1200px;
  --section-py:        96px;
  --header-height:     80px;
}

/* ----- Reset & Base ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

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

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-end) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(74, 92, 240, 0.35);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(74, 92, 240, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--color-muted);
  border: 2px solid var(--color-border);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-ghost:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----- Section Headers ----- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.section-subtitle {
  margin-top: 16px;
  font-size: 16px;
  color: var(--color-muted);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: var(--shadow-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon { flex-shrink: 0; }

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-brand {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 1px;
  color: var(--color-text);
}
.logo-brand strong { font-weight: 800; }

.logo-sub {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--color-muted);
  text-transform: uppercase;
}

/* Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-left: auto;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--color-primary); }

.nav-cta { margin-left: 8px; }

/* Mobile toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero-section {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  /* Fallback gradient when image not loaded */
  background: linear-gradient(135deg, #1a1f3d 0%, #2d3560 50%, #1D2147 100%);
  /* Default placeholder image — substituir pela imagem real via WP Customizer ou CSS personalizado */
  background-image: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1600&q=80');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
/* Allow overriding hero image via inline style (WP Customizer / Elementor) */
.hero-section[style*="background-image"] { background-color: transparent; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.20) 0%,
    rgba(0,0,0,0.45) 50%,
    rgba(0,0,0,0.60) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 24px;
}

.hero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 40px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.btn-hero { font-size: 16px; padding: 16px 36px; }

/* ============================================================
   SIMULADOR / CONTACT FORM
   ============================================================ */
.simulador-section {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.simulador-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

/* Left column */
.simulador-left .section-title {
  text-align: left;
  font-size: clamp(24px, 3vw, 40px);
}

.simulador-left .section-subtitle {
  text-align: left;
  margin: 16px 0 40px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-muted);
}

.step-item.active { color: var(--color-primary); }

.step-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  flex-shrink: 0;
  transition: background 0.3s;
}
.step-item.active .step-dot { background: var(--color-primary); }

/* Form card */
.form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

.form-progress {
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  margin-bottom: 32px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-end));
  border-radius: var(--radius-pill);
  transition: width 0.4s ease;
}

.form-step { display: none; }
.form-step.active { display: block; }

.form-step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 92, 240, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: #9CA3AF; }

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  gap: 12px;
}

/* Success state */
.form-success {
  text-align: center;
  padding: 24px 0;
}
.success-icon { margin-bottom: 20px; }
.success-icon svg { margin: 0 auto; }
.form-success p {
  color: var(--color-muted);
  margin-top: 12px;
  font-size: 15px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   ANATOMIA
   ============================================================ */
.anatomia-section {
  padding: var(--section-py) 0;
  background: var(--color-light);
}

.anatomia-section .section-header { text-align: left; }

.anatomia-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

/* Image side */
.anatomia-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.anatomy-carousel {
  width: 100%;
  max-width: 420px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
}

.anatomy-img {
  max-height: 320px;
  width: auto;
  object-fit: contain;
}

/* Placeholder when PVC section image is not yet provided */
.anatomy-img {
  background: linear-gradient(135deg, #e8edf5 0%, #d0d8e8 100%);
  min-height: 260px;
  border-radius: var(--radius-md);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}
.dot.active { background: var(--color-primary); width: 28px; border-radius: var(--radius-pill); }

/* Features */
.anatomia-features {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.feature-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--color-icon-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.feature-text p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
}

.btn-cta-section { margin-top: 8px; align-self: flex-start; }

/* ============================================================
   PARA QUE SERVE
   ============================================================ */
.para-que-serve-section {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 300px;
  position: relative;
  display: flex;
  align-items: flex-end;
}

.feature-card--image {
  background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?w=800&q=80');
  background-size: cover;
  background-position: center;
}

.feature-card--image .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,20,40,0.85) 0%, rgba(20,20,40,0.25) 60%, transparent 100%);
}

.feature-card--dark {
  background: var(--color-navy);
}

.card-content {
  position: relative;
  z-index: 1;
  padding: 28px;
  color: var(--color-white);
  width: 100%;
}

.card-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-content p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.85;
  margin-bottom: 20px;
}

.card-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-white);
  backdrop-filter: blur(4px);
}

/* ============================================================
   REVIEWS
   ============================================================ */
.reviews-section {
  padding: var(--section-py) 0;
  background: var(--color-light);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.review-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.stars {
  color: var(--color-star);
  font-size: 18px;
  letter-spacing: 2px;
}

.review-card blockquote {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
  font-style: italic;
  flex: 1;
}

.reviewer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.reviewer strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
}
.reviewer span {
  font-size: 13px;
  color: var(--color-muted);
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners-section {
  padding: 56px 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.partners-label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 28px;
}

.partners-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}

.partner-logo {
  font-size: 22px;
  font-weight: 700;
  color: #C4CBD4;
  letter-spacing: 1px;
  transition: color 0.2s;
}
.partner-logo:hover { color: var(--color-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-white);
  padding-top: 64px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo { gap: 14px; }
.logo-icon--lg { width: 56px; height: 56px; }

.footer-contacts h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text);
  margin-bottom: 20px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 14px;
  transition: color 0.2s;
}
.footer-contact-item:hover { color: var(--color-primary); }
.footer-contact-item svg { flex-shrink: 0; }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom-inner a {
  color: var(--color-primary);
  font-weight: 500;
}
.footer-bottom-inner a:hover { text-decoration: underline; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .simulador-inner { grid-template-columns: 1fr; gap: 48px; }
  .anatomia-inner  { grid-template-columns: 1fr; gap: 48px; }
  .anatomia-section .section-header { text-align: center; }
}

@media (max-width: 768px) {
  :root { --section-py: 64px; }

  .main-nav, .nav-cta { display: none; }
  .menu-toggle { display: flex; }

  /* Mobile nav open */
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-white);
    padding: 32px 24px;
    gap: 24px;
    z-index: 999;
    box-shadow: var(--shadow-header);
  }
  .main-nav.open + .nav-cta { display: none; }

  .cards-grid       { grid-template-columns: 1fr; }
  .reviews-grid     { grid-template-columns: 1fr; }
  .footer-inner     { flex-direction: column; gap: 32px; }

  .hero-title { font-size: 36px; }

  .form-card { padding: 24px; }
}

@media (max-width: 480px) {
  .partners-logos { gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; gap: 4px; }
}