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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  overflow-x: hidden;
}

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

/* === NAVBAR === */
#navbar {
  background: transparent;
  transition: background 0.5s ease, box-shadow 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
  background: rgba(253, 252, 250, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(45, 90, 61, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

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

/* === MOBILE MENU === */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.open .mobile-link {
  animation: fadeUp 0.4s ease forwards;
  opacity: 1;
}

#mobile-menu .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.menu-line {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-toggle.active .menu-line:first-child {
  transform: rotate(45deg) translate(3px, 3px);
}

#menu-toggle.active .menu-line:last-child {
  transform: rotate(-45deg) translate(3px, -3px);
  opacity: 0;
}

/* === SCROLL ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  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; }

/* === FORM === */
input::placeholder,
textarea::placeholder {
  color: rgb(193, 211, 195);
}

input:focus,
textarea:focus {
  border-color: rgb(45, 90, 61) !important;
}

/* === SELECTION === */
::selection {
  background: rgb(45, 90, 61, 0.15);
  color: rgb(20, 42, 27);
}

/* === FOCUS VISIBLE === */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgb(45, 90, 61);
  outline-offset: 2px;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
}