/* === BASE === */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background-color: rgba(13, 148, 136, 0.2);
    color: #0d9488;
}

/* === SCROLL REVEAL — progressive enhancement === */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

    .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
    .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
    .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
    .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
    .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }
}

/* === NAVBAR SCROLLED STATE === */
#navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* === FLOATING CARDS ANIMATION === */
@media (prefers-reduced-motion: no-preference) {
    .float-slow {
        animation: float 6s ease-in-out infinite;
    }
    .float-medium {
        animation: float 4.5s ease-in-out infinite;
    }
    .float-fast {
        animation: float 3.5s ease-in-out infinite;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(var(--rotate, 2deg)); }
    50% { transform: translateY(-12px) rotate(var(--rotate, 2deg)); }
}

/* === BUTTON HOVER GLOW === */
.btn-glow:hover {
    box-shadow: 0 0 40px rgba(13, 148, 136, 0.4) !important;
}

/* === NEIGHBORHOOD CARD ZOOM === */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

/* === CUSTOM SCROLLBAR === */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f172a;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #0d9488;
}

/* === MOBILE MENU TRANSITION === */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
#mobile-menu.open {
    max-height: 400px;
}

/* === FORM FOCUS RING ANIMATION === */
input:focus, select:focus, textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

/* === TESTIMONIAL CARD HOVER === */
.scroll-reveal:hover {
    transform: translateY(-4px);
}