/* ===== Base & Typography ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: #38a160;
    color: #fff;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .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);
    }

    .reveal.revealed {
        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; }
}

/* ===== Navbar transitions ===== */
.nav-text-color {
    color: #2c527c;
}

.nav-subtext-color {
    color: #7694b0;
}

.nav-border-color {
    border-color: #d0dce8;
}

.nav-line-color {
    background-color: #2c527c;
}

.navbar-scrolled .nav-text-color {
    color: #0d1a2b;
}

.navbar-scrolled .nav-subtext-color {
    color: #7694b0;
}

.navbar-scrolled .nav-border-color {
    border-color: #d0dce8;
}

.navbar-scrolled .nav-line-color {
    background-color: #0d1a2b;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(13, 26, 43, 0.06), 0 4px 20px rgba(13, 26, 43, 0.04);
}

#navbar {
    background: transparent;
}

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

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

#mobile-menu-btn.active #menu-icon span:first-child {
    transform: rotate(45deg);
    top: 16px;
}

#mobile-menu-btn.active #menu-icon span:last-child {
    transform: rotate(-45deg);
    top: 16px;
}

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

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #a3b8cc;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #7694b0;
}

/* ===== Focus styles ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #38a160;
    outline-offset: 2px;
}

/* ===== Print styles ===== */
@media print {
    nav, #contact-form, .reveal { display: none; }
    body { color: #000; background: #fff; }
}