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

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

body {
    overflow-x: hidden;
}

::selection {
    background-color: #064e3b;
    color: #fefdf8;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #10b981;
    transition: width 0.3s ease;
}

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

/* ========== MOBILE MENU ========== */
#mobile-menu {
    transform: translateY(-20px);
}

#mobile-menu.active {
    opacity: 1 !important;
    pointer-events: all !important;
    transform: translateY(0);
}

#mobile-menu:not(.active) {
    transform: translateY(-20px);
}

.menu-line {
    transform-origin: center;
}

#menu-btn.active #menu-line-1 {
    transform: translateY(9px) rotate(45deg);
}

#menu-btn.active #menu-line-2 {
    opacity: 0;
    transform: scaleX(0);
}

#menu-btn.active #menu-line-3 {
    transform: translateY(-9px) rotate(-45deg);
}

.mobile-nav-link {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

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

/* ========== FLOATING ANIMATIONS ========== */
@keyframes float-slow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float-medium {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes float-fast {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-16px); }
}

.animate-float-slow {
    animation: float-slow 6s ease-in-out infinite;
}

.animate-float-medium {
    animation: float-medium 4.5s ease-in-out infinite;
}

.animate-float-fast {
    animation: float-fast 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, #064e3b, #10b981);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* ========== SCROLL REVEAL (progressive enhancement) ========== */
@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; }
}

/* ========== BACK TO TOP ========== */
#back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

/* ========== 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;
}

/* ========== FORM STYLES ========== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23064e3b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ========== 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;
    }
}