/* ── Base & Reset ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; height: auto; display: block; }

/* ── Hero Background ── */
.hero-bg {
    background: url('https://images.pexels.com/photos/2449665/pexels-photo-2449665.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080') center center / cover no-repeat;
}

.hero-gradient-overlay {
    background: linear-gradient(
        135deg,
        rgba(15, 23, 42, 0.82) 0%,
        rgba(15, 23, 42, 0.70) 50%,
        rgba(15, 23, 42, 0.85) 100%
    );
}

/* ── Hero Blobs ── */
@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-25px) scale(1.05); }
}
@keyframes float-delayed {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-18px) scale(1.03); }
}
.hero-blob-1 { animation: float 7s ease-in-out infinite; }
.hero-blob-2 { animation: float-delayed 9s ease-in-out infinite; }

/* ── Navbar ── */
#site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #34d399;
    border-radius: 2px;
    transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Product Cards ── */
.product-card {
    background: white;
    border-radius: 1.5rem;
    padding: 0.75rem;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.product-card:hover {
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
    transform: translateY(-4px);
}

/* ── Testimonial Cards ── */
.testimonial-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.testimonial-card:hover {
    transform: translateY(-4px);
}

/* ── Scroll Reveal ── */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}
.reveal[data-delay="100ms"] { transition-delay: 100ms; }
.reveal[data-delay="200ms"] { transition-delay: 200ms; }
.reveal[data-delay="300ms"] { transition-delay: 300ms; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html { scroll-behavior: auto; }
    .hero-blob { animation: none; }
    * { animation: none !important; transition-duration: 0.01ms !important; }
}

/* ── Mobile Menu ── */
#mobile-menu {
    animation: slideDown 0.3s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Focus Styles ── */
:focus-visible {
    outline: 3px solid #34d399;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f0fdf4; }
::-webkit-scrollbar-thumb { background: #34d399; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #10b981; }

/* ── Form Focus States ── */
input:focus, textarea:focus {
    background: white !important;
}

/* ── Responsive Tweaks ── */
@media (max-width: 640px) {
    .hero-bg {
        background-position: center center;
    }
}