/* ===== CUSTOM STYLES ===== */

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Selection color */
::selection {
  background: #28C295;
  color: #0A1018;
}

/* ===== NAV ===== */
.nav {
  background: transparent;
  transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

.nav.scrolled {
  background: rgba(255, 254, 249, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(10, 16, 24, 0.06), 0 4px 24px rgba(10, 16, 24, 0.06);
}

.nav.scrolled .nav-logo-text {
  color: #0A1018;
}

.nav-link {
  position: relative;
}

/* ===== BUTTONS ===== */
.btn-primary {
  background: linear-gradient(135deg, #28C295 0%, #1FA87E 100%);
  color: #ffffff;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #20A87E 0%, #168E67 100%);
  color: #ffffff;
}

.btn-primary:active {
  transform: scale(0.98);
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }
.reveal[data-reveal-delay="4"] { transition-delay: 0.4s; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
  .reveal.animated {
    opacity: 1;
    transform: none;
  }
}

/* ===== MOBILE MENU ===== */
.mobile-link {
  display: block;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #F0F4F8;
}
::-webkit-scrollbar-thumb {
  background: #AEC0D8;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #869DB8;
}

/* ===== BACK TO TOP ===== */
#back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* ===== FORM FOCUS ===== */
input:focus,
textarea:focus,
select:focus {
  box-shadow: 0 0 0 3px rgba(40, 194, 149, 0.15);
}

/* ===== ACCESSIBILITY ===== */
:focus-visible {
  outline: 2px solid #28C295;
  outline-offset: 2px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .nav {
    background: rgba(255, 254, 249, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(10, 16, 24, 0.06);
  }
}