/* ========== BASE & RESET ========== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

::selection {
    background-color: #1B4332;
    color: #D8F3DC;
}

/* ========== NAVBAR ========== */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
    background: rgba(254, 250, 224, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(27, 67, 50, 0.08);
}

/* ========== STAT CARDS ========== */
.stat-card {
    animation: floatIn 0.6s ease-out both;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== MENU TABS ========== */
.menu-tab {
    background: transparent;
    color: rgba(216, 243, 220, 0.6);
    border: none;
    cursor: pointer;
}

.menu-tab.active {
    background: rgba(255, 255, 255, 0.15);
    color: #D8F3DC;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.menu-tab:hover:not(.active) {
    color: rgba(216, 243, 220, 0.9);
    background: rgba(255, 255, 255, 0.05);
}

/* ========== SCROLL ANIMATIONS ========== */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.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; }

/* ========== MOBILE MENU ========== */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

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

/* ========== FOCUS STYLES ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #2D6A4F;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .stat-card { animation: none; opacity: 1; }
    .group img { transition: none; }
}

/* ========== MOBILE RESPONSIVE ========== */
@media (max-width: 767px) {
    .font-display {
        line-height: 1.15;
    }
}