/* ==========================================================================
   Paesani Ar Condicionado - Design System (vanilla CSS)
   ========================================================================== */

:root {
  --paesani-dark-blue: #033A7E;
  --paesani-light-blue: #00A6E6;
  --paesani-white: #FFFFFF;

  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;

  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 999px;

  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);

  --container-width: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--gray-800);
  background: #ffffff;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  line-height: 1.25;
}

p {
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Layout
   ========================================================================== */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .container { padding: 0 2rem; }
}

.section {
  padding: 5rem 0;
}

@media (max-width: 767px) {
  .section { padding: 3rem 0; }
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--gray-600);
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto;
}

.bg-white { background: #fff; }
.bg-gray { background: var(--gray-50); }
.bg-dark-blue { background: var(--paesani-dark-blue); color: #fff; }
.bg-light-blue { background: var(--paesani-light-blue); color: #fff; }

.text-center { text-align: center; }

/* Grid
   ========================================================================== */

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.items-center { align-items: center; }

/* Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 500;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--paesani-light-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--paesani-dark-blue);
}

.btn-white {
  background: #fff;
  color: var(--paesani-dark-blue);
}

.btn-white:hover {
  background: var(--gray-100);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--paesani-light-blue);
  color: var(--paesani-light-blue);
}

.btn-outline:hover {
  background: var(--paesani-light-blue);
  color: #fff;
}

.btn-outline-white {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}

.btn-outline-white:hover {
  background: #fff;
  color: var(--paesani-dark-blue);
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-row.center {
  justify-content: center;
}

/* Icon badge
   ========================================================================== */

.icon-badge {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: #EFF6FF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: background 0.2s ease;
}

.icon-badge i {
  font-size: 1.5rem;
  color: var(--paesani-light-blue);
  transition: color 0.2s ease;
}

.icon-badge-lg {
  width: 4rem;
  height: 4rem;
}

.icon-badge-lg i {
  font-size: 1.75rem;
}

/* Cards
   ========================================================================== */

.card {
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  background: #fff;
  transition: all 0.2s ease;
}

.card:hover {
  border-color: var(--paesani-light-blue);
  box-shadow: var(--shadow-card);
}

.card:hover .icon-badge {
  background: var(--paesani-light-blue);
}

.card:hover .icon-badge i {
  color: #fff;
}

.card h3 {
  font-size: 1.25rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--gray-600);
  line-height: 1.7;
}

.card-center {
  text-align: center;
}

.card-center .icon-badge {
  margin-left: auto;
  margin-right: auto;
}

/* Header / Nav
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  z-index: 999;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.site-header .logo img {
  height: 3rem;
  width: auto;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.main-nav a {
  color: var(--gray-700);
  transition: color 0.2s ease;
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--paesani-light-blue);
}

.header-cta {
  display: none;
}

.mobile-menu-btn {
  display: inline-flex;
  background: none;
  border: none;
  padding: 0.5rem;
  color: var(--gray-700);
  font-size: 1.5rem;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 0;
  border-top: 1px solid var(--gray-100);
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 0.6rem 1rem;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
}

.mobile-nav a.active {
  color: var(--paesani-dark-blue);
  background: #EFF6FF;
}

.mobile-nav .btn {
  margin: 0.5rem 1rem 0;
}

@media (min-width: 1024px) {
  .main-nav { display: flex; }
  .header-cta { display: flex; align-items: center; }
  .mobile-menu-btn { display: none; }
  .mobile-nav { display: none !important; }
}

main {
  padding-top: 5rem;
}

/* Hero
   ========================================================================== */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 480px;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--paesani-dark-blue);
  opacity: 0.82;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0;
}

.hero-content h1 {
  font-size: 2.25rem;
  max-width: 640px;
  margin-bottom: 1.5rem;
}

.hero-content .lead {
  font-size: 1.25rem;
  color: #D6E8FA;
  max-width: 560px;
  margin-bottom: 2rem;
}

.hero-simple {
  background: linear-gradient(135deg, var(--paesani-dark-blue), #1e3a8a);
  color: #fff;
  padding: 5rem 0;
}

.hero-simple h1 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.hero-simple p {
  font-size: 1.125rem;
  color: #D6E8FA;
  max-width: 640px;
}

.hero-simple.centered {
  text-align: center;
}

.hero-simple.centered p {
  margin: 0 auto;
}

@media (min-width: 768px) {
  .hero-content h1 { font-size: 3rem; }
  .hero-simple h1 { font-size: 2.75rem; }
}

@media (min-width: 1024px) {
  .hero-content h1 { font-size: 3.5rem; }
}

/* Differentials list
   ========================================================================== */

.check-list {
  display: grid;
  gap: 1rem;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.check-item i {
  color: var(--paesani-light-blue);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

/* Testimonials
   ========================================================================== */

.testimonial-card {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
}

.testimonial-card .quote-icon {
  color: var(--paesani-light-blue);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.testimonial-card blockquote {
  margin: 0 0 1.5rem;
  color: var(--gray-800);
  line-height: 1.7;
  flex: 1;
}

.testimonial-card .author {
  color: var(--gray-600);
  font-weight: 500;
}

/* Footer
   ========================================================================== */

.site-footer {
  background: var(--paesani-dark-blue);
  color: #fff;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  padding: 3rem 0;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}

.footer-grid img {
  height: 3rem;
  margin-bottom: 1rem;
}

.footer-grid p,
.footer-grid a {
  color: #C9DCF2;
  font-size: 0.9rem;
}

.footer-grid h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #fff;
}

.footer-grid ul li {
  margin-bottom: 0.5rem;
}

.footer-grid a:hover {
  color: #fff;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.footer-contact-item i {
  margin-top: 0.2rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.85rem;
  color: #C9DCF2;
}

/* Floating WhatsApp
   ========================================================================== */

.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 3.5rem;
  height: 3.5rem;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
  font-size: 1.5rem;
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

/* FAQ Accordion
   ========================================================================== */

.accordion-item {
  border-bottom: 1px solid var(--gray-200);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.1rem;
  color: var(--paesani-dark-blue);
  gap: 1rem;
}

.accordion-trigger i {
  transition: transform 0.2s ease;
  color: var(--paesani-light-blue);
  flex-shrink: 0;
}

.accordion-item.open .accordion-trigger i {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.accordion-item.open .accordion-content {
  max-height: 400px;
}

.accordion-content p {
  padding-bottom: 1.25rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Forms
   ========================================================================== */

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
  background: #fff;
}

.form-group textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--paesani-light-blue);
  box-shadow: 0 0 0 3px rgba(0, 166, 230, 0.15);
}

/* Contact info
   ========================================================================== */

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-info-item .icon-badge {
  margin-bottom: 0;
  flex-shrink: 0;
}

.contact-info-item h3 {
  font-size: 1.1rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 0.4rem;
}

.contact-info-item p,
.contact-info-item a {
  color: var(--gray-600);
  font-size: 1.05rem;
}

.contact-cta-box {
  background: linear-gradient(135deg, var(--paesani-dark-blue), #1e3a8a);
  border-radius: var(--radius-xl);
  padding: 2rem;
  color: #fff;
}

.contact-cta-box h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.contact-cta-box p {
  color: #D6E8FA;
  margin-bottom: 1.5rem;
}

.contact-cta-box .btn-row {
  flex-direction: column;
}

/* Situation cards (Emergency page)
   ========================================================================== */

.situation-card {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: background 0.2s ease;
}

.situation-card:hover {
  background: rgba(255,255,255,0.2);
}

.situation-card i {
  color: var(--paesani-light-blue);
  flex-shrink: 0;
}

.note-box {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.note-box h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.note-box p {
  color: #D6E8FA;
  line-height: 1.7;
}

/* Map (Area page)
   ========================================================================== */

.map-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.map-card iframe {
  width: 100%;
  height: 320px;
  border: 0;
  display: block;
}

.map-card-footer {
  padding: 1.5rem;
  background: #fff;
}

.map-card-footer h3 {
  color: var(--paesani-dark-blue);
  margin-bottom: 0.25rem;
}

.map-card-footer p {
  color: var(--gray-600);
  font-size: 0.9rem;
}

.cities-box {
  background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-top: 1.5rem;
}

.cities-box p.label {
  text-align: center;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

.cities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.city-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-700);
}

.city-item i {
  color: var(--paesani-light-blue);
  font-size: 0.85rem;
}

.info-box {
  background: #EFF6FF;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  text-align: center;
}

.info-box h3 {
  font-size: 1.5rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 1rem;
}

.info-box p {
  color: var(--gray-600);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

/* Alternating service rows (Services page)
   ========================================================================== */

.service-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 6rem;
}

.service-row:last-child {
  margin-bottom: 0;
}

.service-row img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.service-row h2 {
  font-size: 1.75rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 1.25rem;
}

.service-row p {
  color: var(--gray-600);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

@media (min-width: 1024px) {
  .service-row { grid-template-columns: repeat(2, 1fr); }
  .service-row.reverse .service-row-text { order: 2; }
  .service-row.reverse .service-row-media { order: 1; }
}

/* Dot list (Commercial page)
   ========================================================================== */

.dot-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 640px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .dot-list { grid-template-columns: repeat(2, 1fr); }
}

.dot-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.dot-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--paesani-light-blue);
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.dot-item p {
  color: var(--gray-700);
}

.services-box {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

/* 404 page
   ========================================================================== */

.not-found {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.not-found .container {
  max-width: 560px;
  text-align: center;
  padding: 5rem 1rem;
}

.not-found .eyebrow {
  color: var(--paesani-light-blue);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.not-found h1 {
  font-size: 2.5rem;
  color: var(--paesani-dark-blue);
  margin-bottom: 1.5rem;
}

.not-found p {
  color: var(--gray-600);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

/* Utility
   ========================================================================== */

.mb-0 { margin-bottom: 0; }
.mt-6 { margin-top: 1.5rem; }
.max-w-prose { max-width: 640px; }
.mx-auto { margin-left: auto; margin-right: auto; }

.text-column {
  display: grid;
  gap: 1rem;
  color: var(--gray-600);
  font-size: 1.1rem;
  line-height: 1.7;
}

.text-column strong {
  color: var(--paesani-dark-blue);
}