/* ─── Base & Utilities ─── */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

/* ─── Hero Gradient ─── */
.hero-gradient {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 25%, #047857 50%, #059669 75%, #10b981 100%);
}

/* ─── Floating Animations ─── */
@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes float-delay {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-15px) scale(1.03); }
}

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

.animate-float-delay {
    animation: float-delay 8s ease-in-out infinite;
    animation-delay: -2s;
}

/* ─── Scroll Reveal (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-left {
        opacity: 1;
        transform: translateX(0);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-right {
        opacity: 1;
        transform: translateX(0);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
}

/* Initial states for JS-enhanced reveal */
.js-enabled .reveal-up {
    opacity: 0;
    transform: translateY(30px);
}

.js-enabled .reveal-left {
    opacity: 0;
    transform: translateX(-30px);
}

.js-enabled .reveal-right {
    opacity: 0;
    transform: translateX(30px);
}

/* ─── Navbar ─── */
#navbar {
    background: transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(254, 253, 248, 0.92);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(6, 78, 59, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #059669, #10b981);
    border-radius: 1px;
    transition: width 0.3s ease;
}

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

#navbar:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.85);
}

#navbar:not(.scrolled) .nav-link:hover {
    color: white;
}

#navbar:not(.scrolled) .nav-link::after {
    background: white;
}

#navbar:not(.scrolled) .font-display {
    color: white;
}

/* ─── Mobile Menu ─── */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-link {
    position: relative;
    padding-left: 0;
}

/* ─── Button Hover Effects ─── */
a, button {
    -webkit-tap-highlight-color: transparent;
}

/* ─── Gallery Image Hover ─── */
.rounded-2xl overflow-hidden {
    position: relative;
}

/* ─── Custom Scrollbar ─── */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #ecfdf5;
}

::-webkit-scrollbar-thumb {
    background: #a7f3d0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6ee7b7;
}

/* ─── Focus Styles ─── */
:focus-visible {
    outline: 2px solid #059669;
    outline-offset: 2px;
}

/* ─── Selection ─── */
::selection {
    background: rgba(5, 150, 105, 0.2);
    color: #064e3b;
}