* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --black: #1d1d1f;
  --white: #ffffff;
  --gray-light: #f5f5f7;
  --gray-mid: #86868b;
  --gray-dark: #424245;
  --accent: #006039;
  --accent-hover: #007a4d;
  --radius-lg: 18px;
  --radius-md: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 1000;
}

.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 44px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray-dark);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}

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

.nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 980px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--transition);
}

.nav-cta:hover { background: var(--gray-dark) !important; color: var(--white) !important; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: linear-gradient(180deg, #f5f5f7 0%, #ffffff 60%);
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--black);
  max-width: 900px;
  margin-bottom: 24px;
}

.hero h1 span { color: var(--accent); }

.hero p {
  font-size: clamp(17px, 2.2vw, 21px);
  color: var(--gray-mid);
  max-width: 560px;
  margin-bottom: 44px;
  font-weight: 400;
}

.hero-logo {
  width: 140px;
  height: auto;
  margin-bottom: 28px;
  animation: fadeInDown 0.8s ease both;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  padding: 16px 36px;
  border-radius: 980px;
  font-size: 17px;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
}

/* SECTIONS */
section {
  padding: 100px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--black);
  max-width: 640px;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--gray-mid);
  max-width: 540px;
  margin-bottom: 64px;
}

/* SERVICE CARDS */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,0.07);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.service-card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.service-card-body {
  padding: 28px 28px 32px;
}

.service-card:not(:has(.service-card-image)) .service-card-body {
  padding: 36px;
}

.service-icon {
  font-size: 30px;
  margin-bottom: 14px;
  display: block;
}

.service-card h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 15px;
  color: var(--gray-mid);
  line-height: 1.6;
  margin-bottom: 24px;
}

.service-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

/* WHY US */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}

.why-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.why-item p {
  font-size: 15px;
  color: var(--gray-mid);
  line-height: 1.7;
}

/* DARK BAND */
.dark-band {
  background: var(--black);
  color: var(--white);
  padding: 100px 48px;
  text-align: center;
}

.dark-band .section-title {
  color: var(--white);
  margin: 0 auto 20px;
}

.dark-band .section-sub {
  color: rgba(255,255,255,0.55);
  margin: 0 auto 44px;
}

/* FOOTER */
footer {
  background: var(--gray-light);
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

footer .footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--black);
}

footer p {
  font-size: 13px;
  color: var(--gray-mid);
}

footer .footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

footer .footer-links a {
  font-size: 13px;
  color: var(--gray-mid);
  text-decoration: none;
  transition: color var(--transition);
}

footer .footer-links a:hover { color: var(--black); }

/* FADE IN ANIMATION */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* MOBILE */
/* HAMBURGER BUTTON */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* MOBILE MENU OVERLAY */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.mobile-menu a {
  font-size: 28px;
  font-weight: 600;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.02em;
  padding: 10px 0;
  transition: color 0.2s ease;
}

.mobile-menu a:hover { color: var(--accent); }

.mobile-menu .mobile-cta {
  margin-top: 16px;
  background: var(--accent);
  color: var(--white) !important;
  padding: 16px 40px;
  border-radius: 980px;
  font-size: 20px !important;
}

.mobile-menu .mobile-cta:hover {
  background: var(--accent-hover);
  color: var(--white) !important;
}

@media (max-width: 768px) {
  nav { padding: 0 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
  section { padding: 72px 24px; }
  .dark-band { padding: 72px 24px; }
  footer { padding: 40px 24px; flex-direction: column; text-align: center; }
}

/* WHATSAPP BUTTON */
.whatsapp-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 9999;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-btn svg {
  width: 32px;
  height: 32px;
  fill: white;
}

.whatsapp-tooltip {
  position: absolute;
  right: 72px;
  background: var(--black);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.whatsapp-btn:hover .whatsapp-tooltip {
  opacity: 1;
}

@media (max-width: 768px) {
  .whatsapp-btn {
    bottom: 24px;
    right: 24px;
    width: 54px;
    height: 54px;
  }
}