/* ===== BASE ===== */
*, *::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: #A7F3D0;
    color: #064E3B;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #FDFBF7;
}
::-webkit-scrollbar-thumb {
    background: #6EE7B7;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #34D399;
}

/* ===== NAVBAR ===== */
.nav-scrolled {
    background: rgba(253, 251, 247, 0.92) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(6, 78, 59, 0.08);
}

.nav-scrolled #navbar {
    border-bottom: 1px solid rgba(110, 231, 183, 0.2);
}

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

.floating-card:nth-child(2) {
    animation-delay: -2s;
    animation-duration: 7s;
}

.floating-card:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 5.5s;
}

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

/* ===== SCROLL INDICATOR ===== */
@keyframes scroll-indicator {
    0% { top: -100%; }
    100% { top: 200%; }
}

.animate-scroll-indicator {
    animation: scroll-indicator 1.5s linear 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, #10B981, #34D399, #6EE7B7);
    opacity: 0;
    transition: opacity 0.5s ease;
}

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

.service-card:hover {
    transform: translateY(-4px);
}

/* ===== APPROACH STEPS ===== */
.approach-step {
    position: relative;
}

.approach-step::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #A7F3D0, transparent);
    margin: 0 auto 16px;
    border-radius: 1px;
}

.approach-step:last-child::after {
    display: none;
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .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; }
}

/* ===== MOBILE MENU ===== */
.mobile-link {
    position: relative;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 1px;
    background: #D1FAE5;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-link:hover::after {
    opacity: 1;
}

/* ===== INPUT FOCUS ===== */
input:focus, textarea:focus {
    outline: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .floating-card {
        display: none;
    }
    
    #hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 80px;
    }
    
    .hero-photo-mobile {
        order: -1;
    }
}

/* ===== PRINT ===== */
@media print {
    nav, #contact form, button {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}