/* Design System - Shine & Cleanliness Professional */
:root {
  --bg: #f8fafc;
  --text: #0f172a;
  --primary: #021526; /* Deep Navy */
  --secondary: #04293d;
  --accent: #f59e0b; /* Gold/Amber */
  --accent-hover: #d97706;
  --success: #10b981;
  --muted: #64748b;
  --glass: rgba(255, 255, 255, 0.8);
  --radius: 16px;
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
  --shadow-lg: 0 20px 50px rgba(2, 6, 23, 0.15);
  --header-height: 72px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(2, 21, 38, 0.9);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  height: 48px;
  width: auto;
}

.btn-quote {
  background: linear-gradient(135deg, var(--accent), #fbbf24);
  color: var(--primary);
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.2);
}

.btn-quote:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(245, 158, 11, 0.3);
}

.menu-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #fff;
  transition: 0.3s;
}

/* Navigation Overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 21, 38, 0.98);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-overlay[aria-hidden="false"] {
  display: flex;
  opacity: 1;
}

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

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

.nav-list a {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
}

.nav-list a:hover {
  color: var(--accent);
}

.nav-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
}

/* Hero Section */
.hero {
  margin-top: var(--header-height);
  position: relative;
  height: 80vh;
  min-height: 500px;
  background-color: var(--primary);
}

.hero-media {
  height: 100%;
  position: relative;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.hero-only-cta {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), #fbbf24);
  color: var(--primary);
  padding: 18px 48px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 15px 35px rgba(245, 158, 11, 0.3);
  white-space: nowrap;
}

.hero-only-cta:hover {
  transform: translateX(-50%) translateY(-5px);
  box-shadow: 0 20px 45px rgba(245, 158, 11, 0.4);
}

/* Common Section Styles */
.section {
  padding: 80px 0;
}

h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--primary);
  text-align: center;
}

.muted {
  color: var(--muted);
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
}

/* About Section */
#sobre {
  background-color: #fff;
}

.about-hero {
  margin-bottom: 40px;
}

.about-hero img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

/* Services Section */
#servicos {
  background-color: var(--primary);
  color: #fff;
}

#servicos h2 {
  color: #fff;
}

.services-hero {
  margin-bottom: 40px;
}

.services-hero img {
  border-radius: var(--radius);
  height: 400px;
  width: 100%;
  object-fit: cover;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 32px;
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.service-btn h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--accent);
}

.service-btn p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
}

.service-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-10px);
  border-color: var(--accent);
}

/* Process Section */
.process-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 16px;
}

.features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 800;
  font-size: 20px;
}

.steps {
  counter-reset: step-counter;
}

.steps li {
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.steps li strong {
  counter-increment: step-counter;
  content: counter(step-counter);
  min-width: 36px;
  height: 36px;
  background: var(--accent);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 18px;
}

/* Testimonials */
.test-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

blockquote {
  background: #fff;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 6px solid var(--accent);
}

blockquote p {
  font-style: italic;
  font-size: 16px;
  margin-bottom: 16px;
}

cite {
  font-weight: 700;
  color: var(--primary);
}

/* Contact Section */
#contactos {
  background-color: var(--primary);
  color: #fff;
}

#contactos h2 {
  color: #fff;
  text-align: left;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
}

.contact-list {
  margin-bottom: 32px;
}

.contact-list li {
  margin-bottom: 16px;
  font-size: 16px;
}

.contact-list strong {
  color: var(--accent);
  display: block;
}

.btn-ws {
  background-color: var(--success);
  color: #fff;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.card-form {
  background: rgba(255, 255, 255, 0.05);
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.card-form input,
.card-form select,
.card-form textarea {
  width: 100%;
  padding: 14px;
  margin-bottom: 24px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.card-form input:focus {
  border-color: var(--accent);
  outline: none;
}

.form-actions {
  display: flex;
  gap: 16px;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  border: none;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
  flex: 1;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: 14px 24px;
  border-radius: 8px;
  cursor: pointer;
}

/* Footer */
.site-footer {
  background-color: #010c16;
  padding: 60px 0;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.logo-sm {
  height: 60px;
  margin-bottom: 24px;
  filter: brightness(0) invert(1);
}

/* Floating WhatsApp */
.whatsapp-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background-color: var(--success);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
  z-index: 100;
}

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

/* Responsive */
@media (max-width: 968px) {
  .contact-grid, .process-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  h2 {
    font-size: 28px;
  }
  
  .hero-only-cta {
    padding: 14px 32px;
    font-size: 16px;
  }
}

@media (max-width: 640px) {
  .btn-quote {
    display: none;
  }
  
  .card-form {
    padding: 24px;
  }
  
  .form-actions {
    flex-direction: column;
  }
}