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

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(110, 231, 183, 0.3);
    color: #f0fdf4;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #060d18;
}
::-webkit-scrollbar-thumb {
    background: #1e3a5f;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #6EE7B7;
}

/* ===== Animations ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

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

.animate-float {
    animation: float 4s ease-in-out infinite;
}

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

/* ===== Scroll Reveal ===== */
.reveal {
    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.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; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== Navbar ===== */
#navbar {
    backdrop-filter: blur(0px);
    transition: backdrop-filter 0.5s ease, background 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    backdrop-filter: blur(20px);
    background: rgba(6, 13, 24, 0.85);
    box-shadow: 0 1px 0 rgba(110, 231, 183, 0.08), 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #6EE7B7;
    transition: width 0.3s ease, left 0.3s ease;
}

.nav-link:hover::after {
    width: 60%;
    left: 20%;
}

/* ===== Hero ===== */
#hero {
    position: relative;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(110, 231, 183, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

/* ===== Section Dividers ===== */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(110, 231, 183, 0.15), transparent);
}

/* ===== Button Ripple Effect ===== */
button, a {
    position: relative;
    overflow: visible;
}

/* ===== Form Styles ===== */
input:focus, select:focus, textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(110, 231, 183, 0.1);
}

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

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

.mobile-link {
    border-radius: 0.75rem;
}

/* ===== Image Hover ===== */
.rounded-2xl.overflow-hidden img,
.rounded-3xl.overflow-hidden img {
    will-change: transform;
}

/* ===== Gradient Text Utility ===== */
.text-gradient-mint {
    background: linear-gradient(135deg, #86efac, #6EE7B7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Responsive Tweaks ===== */
@media (max-width: 768px) {
    .font-display {
        line-height: 1.15;
    }
}

/* ===== Focus Visible ===== */
:focus-visible {
    outline: 2px solid #6EE7B7;
    outline-offset: 2px;
}

/* ===== Print ===== */
@media print {
    #navbar, #mobile-menu-btn { display: none; }
    body { background: white; color: black; }
}