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

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

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(16, 185, 129, 0.2);
    color: #064e3b;
}

/* ===== Navbar ===== */
.nav-logo-text {
    transition: color 0.3s ease;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease;
}

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

/* Scrolled state */
.nav-scrolled .nav-logo-text {
    color: #064e3b;
}

.nav-scrolled nav-link,
.nav-scrolled .nav-link {
    color: #064e3b;
}

/* ===== Hero Animations ===== */
@keyframes float-1 {
    0%, 100% { transform: translateY(0px) rotate(12deg); }
    50% { transform: translateY(-20px) rotate(12deg); }
}

@keyframes float-2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(0deg); }
}

@keyframes float-3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-25px); }
}

@keyframes float-4 {
    0%, 100% { transform: translateY(0px) rotate(-12deg); }
    50% { transform: translateY(-18px) rotate(-12deg); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.hero-shape-1 { animation: float-1 6s ease-in-out infinite; }
.hero-shape-2 { animation: float-2 5s ease-in-out infinite; }
.hero-shape-3 { animation: float-3 7s ease-in-out infinite; }
.hero-shape-4 { animation: float-4 8s ease-in-out infinite; }

/* Hero content entrance */
@keyframes hero-entrance {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content > * {
    animation: hero-entrance 0.8s ease-out forwards;
    opacity: 0;
}

.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.3s; }
.hero-content > *:nth-child(3) { animation-delay: 0.5s; }
.hero-content > *:nth-child(4) { animation-delay: 0.7s; }

/* Scroll dot animation */
@keyframes scroll-dot {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(8px); opacity: 0; }
}

.scroll-dot {
    animation: scroll-dot 1.5s ease-in-out infinite;
}

/* ===== Service Cards ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #059669, #10b981, #34d399);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.service-card:hover::before {
    opacity: 1;
}

/* ===== Gallery ===== */
.gallery-item {
    position: relative;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(6, 78, 59, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
    border-radius: inherit;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

/* Progressive enhancement: animate only if user prefers motion */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Mobile Menu ===== */
.mobile-link {
    position: relative;
    padding-left: 0;
}

/* ===== Button Ripple Effect ===== */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #fefdf8;
}

::-webkit-scrollbar-thumb {
    background: #a7f3d0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #34d399;
}

/* ===== Focus Styles ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    .hero-content > * {
        animation-duration: 0.6s;
    }
    
    .hero-shape-1,
    .hero-shape-4 {
        display: none;
    }
}