/* ===== Base & Reset ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: #fefdf8;
    color: #064e3b;
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        /* JS adds the revealed class */
    }

    .reveal-up {
        opacity: 0;
        transform: translateY(40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-left {
        opacity: 0;
        transform: translateX(-40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-right {
        opacity: 0;
        transform: translateX(40px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translate(0, 0);
    }
}

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

#navbar.scrolled {
    background: rgba(254, 253, 248, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    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: #d97706;
    transition: width 0.3s ease;
}

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

#navbar:not(.scrolled) .nav-link {
    color: #d1fae5;
}

#navbar:not(.scrolled) .nav-link:hover {
    color: #fbbf24;
}

#navbar:not(.scrolled) .nav-link::after {
    background: #fbbf24;
}

#navbar:not(.scrolled) .font-serif {
    color: #fefdf8;
}

#navbar:not(.scrolled) .bg-emerald-800 {
    background: rgba(6, 78, 59, 0.6);
    border: 1px solid rgba(110, 231, 183, 0.3);
}

#navbar:not(.scrolled) .bg-emerald-800:hover {
    background: rgba(4, 120, 87, 0.8);
}

/* ===== Mobile Menu ===== */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Hamburger */
.menu-bar {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-toggle.active .menu-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

#menu-toggle.active .menu-bar:nth-child(2) {
    opacity: 0;
}

#menu-toggle.active .menu-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ===== Menu Tabs ===== */
.menu-tab {
    background: transparent;
    color: rgba(209, 250, 229, 0.6);
    border: none;
    cursor: pointer;
}

.menu-tab.active {
    background: #d97706;
    color: #064e3b;
    box-shadow: 0 4px 20px rgba(217, 119, 6, 0.4);
}

/* ===== Menu Panels ===== */
.menu-panel {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Button Hover Effects ===== */
a {
    text-decoration: none;
}

/* ===== Selection ===== */
::selection {
    background: rgba(217, 119, 6, 0.3);
    color: #064e3b;
}

/* ===== Focus ===== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #d97706;
    outline-offset: 4px;
    border-radius: 4px;
}

/* ===== Image Loading ===== */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

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

::-webkit-scrollbar-track {
    background: #fefdf8;
}

::-webkit-scrollbar-thumb {
    background: #065f46;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #047857;
}