/* ===== Base & Utilities ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(4, 120, 87, 0.15);
    color: #047857;
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
    background: rgba(253, 251, 247, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

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

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

#mobile-menu.open .menu-line:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* ===== Floating Cards ===== */
.floating-card {
    animation: float 6s ease-in-out infinite;
}

.card-top {
    animation-delay: 0s;
}

.card-bottom {
    animation-delay: -2s;
}

.card-mid {
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }

/* ===== Nav Links ===== */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #047857;
    transition: width 0.3s ease;
}

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

/* ===== Mobile Links ===== */
.mobile-link {
    position: relative;
}

/* ===== Form Focus States ===== */
input:focus, textarea:focus {
    border-color: #6EE7B7 !important;
    box-shadow: 0 0 0 4px rgba(110, 231, 183, 0.15) !important;
}

/* ===== Image Hover ===== */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .floating-card {
        display: none;
    }
    
    #hero {
        min-height: auto;
        padding: 120px 0 80px;
    }
}

/* ===== Print ===== */
@media print {
    #navbar, .floating-card, #contact-form, #form-success {
        display: none !important;
    }
    
    body {
        background: white !important;
    }
}