/* ── Reset & Base ─────────────────────────────────── */
*, *::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, svg { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

/* ── Animations ───────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50%       { transform: translateY(-18px) rotate(3deg); }
}

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

@keyframes floatSlow {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-8px); }
}

@keyframes bounceSlow {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(6px); }
}

/* Hero entrance animations */
.animate-fade-in-up {
    animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

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

.animate-float-delayed {
    animation: floatDelayed 5s ease-in-out infinite 1s;
}

.animate-float-slow {
    animation: floatSlow 7s ease-in-out infinite 2s;
}

.animate-bounce-slow {
    animation: bounceSlow 2.5s ease-in-out infinite;
}

/* ── Scroll Reveal (progressive enhancement) ──────── */
@media (prefers-reduced-motion: no-preference) {
    .js-active .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .js-active .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    /* Staggered delays for grid items */
    .js-active .reveal[style*="transition-delay"] {
        transition-delay: attr(data-delay ms);
    }
}

/* Fallback: always visible when JS is disabled or reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

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

#site-header.scrolled {
    background: rgba(240, 237, 230, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(45, 90, 61, 0.08), 0 4px 24px rgba(45, 90, 61, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease;
    opacity: 0.4;
}

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

/* Mobile menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.close {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    position: relative;
}

/* ── Buttons & Links ──────────────────────────────── */
a:focus-visible, button:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
    border-radius: 4px;
}

/* ── Utility ──────────────────────────────────────── */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ── Back to Top ──────────────────────────────────── */
#back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* ── Section Spacing ──────────────────────────────── */
section {
    position: relative;
}

/* ── Image Hover ──────────────────────────────────── */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* ── Custom Scrollbar ─────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F0EDE6;
}
::-webkit-scrollbar-thumb {
    background: #b9d4bc;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #8fbb93;
}