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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== SCROLL REVEAL (below-fold only, progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    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);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ===== NAVBAR ===== */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(10, 37, 64, 0.08);
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-link {
  position: relative;
}

.mobile-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #14b8a6;
  transition: width 0.3s ease;
}

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

/* ===== HERO ===== */
#hero {
  position: relative;
}

/* ===== CARDS ===== */
.group:hover .group-hover\\:scale-105 {
  transform: scale(1.05);
}

/* ===== BUTTONS ===== */
a, button {
  -webkit-tap-highlight-color: transparent;
}

/* ===== SELECTION ===== */
::selection {
  background: #5eead4;
  color: #0a2540;
}

/* ===== FOCUS ===== */
:focus-visible {
  outline: 2px solid #14b8a6;
  outline-offset: 2px;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f0fdf9;
}
::-webkit-scrollbar-thumb {
  background: #99f6e0;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #5eead4;
}