/* =============================================
   CALIFA SKY CLEANING — SHARED STYLESHEET
   ============================================= */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
  --primary:       #1B5CA8;
  --primary-dark:  #143f78;
  --primary-light: #2a7fd4;
  --sky:           #4AB3E8;
  --sky-light:     #EAF5FD;
  --white:         #FFFFFF;
  --off-white:     #F7FBFF;
  --gray-light:    #F0F4F8;
  --gray:          #8A9BB0;
  --gray-dark:     #4A5568;
  --dark:          #0F1F35;
  --text:          #2D3748;
  --border:        #D1E3F5;
  --shadow-sm:     0 2px 8px rgba(27,92,168,0.08);
  --shadow-md:     0 6px 24px rgba(27,92,168,0.12);
  --shadow-lg:     0 16px 48px rgba(27,92,168,0.15);
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    all 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---- Utilities ---- */
.container  { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 88px 0; }
.section-sm { padding: 60px 0; }

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-sky     { color: var(--sky); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

/* Section Labels */
.label {
  display: inline-block;
  background: var(--sky-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 40px;
  margin-bottom: 16px;
}

/* Headings */
h1, h2, h3, h4 { line-height: 1.25; color: var(--dark); }
h1 { font-size: clamp(36px, 5vw, 60px); font-weight: 800; }
h2 { font-size: clamp(28px, 3.5vw, 42px); font-weight: 700; }
h3 { font-size: clamp(20px, 2.5vw, 26px); font-weight: 600; }
h4 { font-size: 18px; font-weight: 600; }

.section-title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 17px;
  color: var(--gray-dark);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-sky {
  background: var(--sky);
  color: var(--white);
}
.btn-sky:hover {
  background: #3a9fd8;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--primary);
}
.btn-white:hover {
  background: var(--sky-light);
  transform: translateY(-1px);
}

.btn-lg { padding: 17px 34px; font-size: 16px; }

/* ---- NAVIGATION ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.navbar-brand .brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.navbar-brand .brand-tagline {
  font-size: 11px;
  color: var(--sky);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.navbar-nav a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-dark);
  border-radius: 8px;
  transition: var(--transition);
}
.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary);
  background: var(--sky-light);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.navbar-phone {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.navbar-phone svg { flex-shrink: 0; }

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  box-shadow: var(--shadow-md);
  gap: 4px;
}
.mobile-nav a {
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius);
  transition: var(--transition);
  display: block;
}
.mobile-nav a:hover { background: var(--sky-light); color: var(--primary); }
.mobile-nav .btn   { width: 100%; justify-content: center; margin-top: 8px; }
.mobile-nav.open   { display: flex; }

/* ---- FOOTER ---- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .brand-name {
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}
.footer-brand .brand-sub {
  font-size: 12px;
  color: var(--sky);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 260px; }

.footer-col h4 {
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--sky); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
}
.footer-contact-item svg { flex-shrink: 0; margin-top: 2px; }

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: rgba(255,255,255,0.75);
}
.social-links a:hover { background: var(--primary); color: var(--white); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ---- SERVICE CARDS ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--sky));
  opacity: 0;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--sky-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 28px;
}
.service-card h3 { font-size: 19px; margin-bottom: 10px; }
.service-card p  { font-size: 14px; color: var(--gray-dark); line-height: 1.7; margin-bottom: 20px; }
.service-card .learn-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.service-card .learn-more:hover { gap: 8px; }

/* ---- TRUST BADGES ---- */
.trust-bar {
  background: var(--sky-light);
  padding: 28px 0;
}
.trust-items {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
}
.trust-item svg { color: var(--primary); flex-shrink: 0; }

/* ---- FEATURE CARDS ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--sky));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  color: var(--white);
}
.feature-card h4 { margin-bottom: 10px; font-size: 17px; }
.feature-card p  { font-size: 14px; color: var(--gray-dark); line-height: 1.7; }

/* ---- TESTIMONIALS ---- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow-md); }
.stars {
  color: #F6A623;
  font-size: 18px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.testimonial-card blockquote {
  font-size: 15px;
  color: var(--gray-dark);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--sky));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.author-name  { font-weight: 600; font-size: 14px; }
.author-label { font-size: 12px; color: var(--gray); }

/* ---- STEPS ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(16.66% + 24px);
  right: calc(16.66% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--sky));
  opacity: 0.25;
}
.step-card { text-align: center; padding: 0 16px; }
.step-num {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--sky));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
}
.step-card h4 { margin-bottom: 10px; }
.step-card p  { font-size: 14px; color: var(--gray-dark); line-height: 1.7; }

/* ---- CONTACT FORM ---- */
.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: var(--gray-light);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(27,92,168,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group.full { grid-column: 1 / -1; }

/* ---- PAGE HERO ---- */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--sky) 100%);
  color: var(--white);
  padding: 72px 0;
  text-align: center;
}
.page-hero h1 { color: var(--white); margin-bottom: 12px; font-size: clamp(32px, 4vw, 48px); }
.page-hero p  { font-size: 18px; opacity: 0.85; max-width: 560px; margin: 0 auto; }

/* ---- MISC ---- */
.divider {
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--sky));
  border-radius: 2px;
  margin: 0 auto 20px;
}

.badge-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 24px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(8px);
}
.badge svg { opacity: 0.9; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid  { grid-template-columns: repeat(3,1fr); gap: 20px; }
  .steps-grid::before { display: none; }
}
@media (max-width: 768px) {
  .section    { padding: 64px 0; }
  .navbar-nav, .navbar-actions .btn { display: none; }
  .hamburger  { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps-grid  { grid-template-columns: 1fr; }
  .form-row    { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .container  { padding: 0 16px; }
  .section    { padding: 48px 0; }
  .trust-items { gap: 20px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .features-grid     { grid-template-columns: 1fr; }
}