/* ========== BASE & RESET ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #8fd5bc;
  color: #0e254b;
}

/* ========== NAVBAR ========== */
.nav-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(14, 37, 75, 0.06);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.nav-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 30px rgba(14, 37, 75, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #36a17c;
  border-radius: 1px;
  transition: width 0.25s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ========== BUTTONS ========== */
.btn-primary {
  background: #36a17c;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.75rem;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 14px rgba(54, 161, 124, 0.3);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: #227d5f;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(54, 161, 124, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: #163e7a;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.75rem;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid #d4e2f5;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: #eef4fb;
  border-color: #7ea9e1;
  transform: translateY(-1px);
}

.btn-cta {
  background: #ffffff;
  color: #36a17c;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  border: none;
  cursor: pointer;
}

.btn-cta:hover {
  background: #f2fbf8;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.btn-cta-secondary {
  background: transparent;
  color: #ffffff;
  font-weight: 600;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  cursor: pointer;
}

.btn-cta-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* ========== MOBILE MENU ========== */
.mobile-menu-btn {
  transition: background 0.2s ease;
}

.mobile-menu-btn.active {
  background: #d4e2f5;
}

.mobile-menu {
  animation: slideDown 0.3s ease;
}

.mobile-menu.hidden {
  animation: slideUp 0.25s ease forwards;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}

.mobile-nav-link {
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eef4fb;
}

.mobile-nav-link:last-child {
  border-bottom: none;
}

/* ========== DECORATIVE BLOBS ========== */
.blob {
  pointer-events: none;
  will-change: transform;
}

.blob--mint {
  background: radial-gradient(ellipse at center, rgba(143, 213, 188, 0.12) 0%, transparent 70%);
  width: 800px;
  height: 800px;
  top: 10%;
  left: -20%;
  animation: floatBlob 20s ease-in-out infinite;
}

.blob--navy {
  background: radial-gradient(ellipse at center, rgba(30, 81, 158, 0.06) 0%, transparent 70%);
  animation: floatBlob 25s ease-in-out infinite reverse;
}

@keyframes floatBlob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Default state for reduced-motion or no-JS: always visible */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== SERVICE CARDS ========== */
.service-card {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .service-card {
    opacity: 0;
    transform: translateY(20px);
  }
  .service-card.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #eef4fb;
}

::-webkit-scrollbar-thumb {
  background: #a9c5eb;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #7ea9e1;
}

/* ========== FOCUS ========== */
a:focus-visible, button:focus-visible {
  outline: 2px solid #36a17c;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 767px) {
  .nav-header {
    background: rgba(255, 255, 255, 0.95);
  }

  html {
    scroll-padding-top: 72px;
  }
}