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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* === NAVBAR SCROLL STATE === */
#navbar.scrolled {
    background: rgba(6, 11, 107, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(40, 168, 110, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

#navbar.scrolled .text-white {
    color: rgba(255, 255, 255, 0.9);
}

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

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

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

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hamburger animation */
#menu-btn.active #menu-icon span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

#menu-btn.active #menu-icon span:nth-child(2) {
    opacity: 0;
}

#menu-btn.active #menu-icon span:nth-child(3) {
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
}

/* === SCROLL REVEAL (progressive enhancement) === */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .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; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* === MENU CARD HOVER === */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

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

::-webkit-scrollbar-track {
    background: #060b6b;
}

::-webkit-scrollbar-thumb {
    background: #28a86e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4cc78e;
}

/* === SELECTION === */
::selection {
    background: rgba(40, 168, 110, 0.3);
    color: #fff;
}

/* === FOCUS === */
:focus-visible {
    outline: 2px solid #28a86e;
    outline-offset: 4px;
    border-radius: 4px;
}

/* === UTILITY ANIMATIONS === */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

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

@keyframes pulse-soft {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.pulse-soft {
    animation: pulse-soft 3s ease-in-out infinite;
}

/* === RESPONSIVE TWEAKS === */
@media (max-width: 767px) {
    .font-serif {
        line-height: 1.1;
    }
}