/* ── Base & Utilities ── */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: #D1FAE5;
    color: #047857;
}

/* ── Navbar ── */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(253, 248, 240, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(5, 150, 105, 0.08), 0 4px 24px rgba(0, 0, 0, 0.04);
}

.nav-link {
    position: relative;
}

/* ── Hero Floating Cards ── */
.card-float-main {
    animation: float-main 6s ease-in-out infinite;
}

.card-float-1 {
    animation: float-1 5s ease-in-out infinite;
}

.card-float-2 {
    animation: float-2 5.5s ease-in-out infinite;
}

.card-float-3 {
    animation: float-3 4.5s ease-in-out infinite;
}

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

@keyframes float-1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(-1deg); }
}

@keyframes float-2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(1deg); }
}

@keyframes float-3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-14px); }
}

/* ── Decorative dots ── */
.animate-float {
    animation: dot-float 4s ease-in-out infinite;
}

.animate-float-delayed {
    animation: dot-float 5s ease-in-out infinite 1.5s;
}

@keyframes dot-float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-16px) scale(1.2); opacity: 0.3; }
}

/* ── Service Cards ── */
.service-card {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.5s ease, box-shadow 0.5s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(4, 120, 87, 0.2);
}

/* ── Testimonial Cards ── */
.testimonial-card {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.4s ease;
}

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

/* ── Scroll Reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    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; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Back to Top ── */
.back-to-top {
    transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(4, 120, 87, 0.3);
}

/* ── Mobile Menu ── */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Form Styles ── */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

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='%236B6560' stroke-width='2' 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;
    appearance: none;
    -webkit-appearance: none;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .card-float-1,
    .card-float-2,
    .card-float-3 {
        display: none;
    }
}