/* Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: #060e1a;
    color: #ffffff;
    overflow-x: hidden;
}

::selection {
    background: rgba(126, 200, 168, 0.2);
    color: #d4f0e0;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0d1b2a;
}
::-webkit-scrollbar-thumb {
    background: rgba(126, 200, 168, 0.3);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(126, 200, 168, 0.5);
}

/* Header */
#header {
    background: transparent;
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease;
}

#header.scrolled {
    background: rgba(6, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(126, 200, 168, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #7ec8a8;
    transition: width 0.3s ease;
}

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

/* Hero animations */
.hero-element {
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-element:nth-child(1) { animation-delay: 0.1s; }
.hero-element:nth-child(2) { animation-delay: 0.25s; }
.hero-element:nth-child(3) { animation-delay: 0.4s; }
.hero-element:nth-child(4) { animation-delay: 0.55s; }

@keyframes heroReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Mobile menu */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

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

.menu-line {
    display: block;
}

#menuToggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menuToggle.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: translateX(10px);
}

/* Form */
input:focus, select:focus, textarea:focus {
    border-color: rgba(126, 200, 168, 0.6) !important;
}

input:focus ~ label,
select:focus ~ label,
textarea:focus ~ label {
    color: #7ec8a8;
}

/* Image hover */
img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.6s ease;
}

/* Responsive */
@media (max-width: 767px) {
    .hero-element {
        transform: translateY(20px);
    }
    
    #hero h1 {
        font-size: 2.5rem !important;
    }
    
    #hero h1 span {
        font-size: 2.5rem !important;
    }
}