/* ===== CUSTOM ANIMATIONS ===== */
@keyframes blob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -50px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 50px) scale(1.05); }
}

.animate-blob {
    animation: blob 7s ease-in-out infinite;
}

.animation-delay-2000 {
    animation-delay: 2s;
}

.animation-delay-4000 {
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(5deg); }
    66% { transform: translateY(-10px) rotate(-3deg); }
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 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 SCROLLED STATE ===== */
#navbar.scrolled {
    background: rgba(254, 254, 247, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 20px rgba(4, 112, 87, 0.08);
}

#navbar.scrolled .menu-line {
    background: #1f2937;
}

/* ===== SMOOTH SCROLL ===== */
html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: #FDFCF0;
}

::-webkit-scrollbar-thumb {
    background: #6ee7b7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #047857;
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* ===== NAV LINK HOVER EFFECT ===== */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #047857;
    border-radius: 1px;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 60%;
}

/* ===== MOBILE LINKS ===== */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ===== HAMBURGER ANIMATION ===== */
.menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
    width: 0;
}

.menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 6px;
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}