/* ── Reset & Base ── */
*, *::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: #0a1628;
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

::selection {
    background: #5eead4;
    color: #0a1628;
}

/* ── Geometric Background Shapes ── */
.geo-circle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.geo-circle--1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(94, 234, 212, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -100px;
}

.geo-circle--2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(94, 234, 212, 0.05) 0%, transparent 70%);
    bottom: 10%;
    left: -100px;
}

.geo-circle--3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(94, 234, 212, 0.1) 0%, transparent 70%);
    top: 40%;
    left: 30%;
}

.geo-rect {
    position: absolute;
    pointer-events: none;
}

.geo-rect--1 {
    width: 120px;
    height: 120px;
    border: 2px solid rgba(94, 234, 212, 0.15);
    top: 20%;
    left: 5%;
    transform: rotate(45deg);
}

.geo-rect--2 {
    width: 80px;
    height: 80px;
    background: rgba(94, 234, 212, 0.06);
    bottom: 25%;
    right: 8%;
    transform: rotate(20deg);
    border-radius: 12px;
}

.geo-triangle {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-bottom: 104px solid rgba(94, 234, 212, 0.06);
    top: 60%;
    right: 15%;
    transform: rotate(-15deg);
}

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

#navbar.scrolled {
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #5eead4;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #5eead4 !important;
}

/* ── Mobile Menu ── */
#mobileMenu {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

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

.mobile-link {
    position: relative;
}

/* ── Scroll Reveal ── */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

::-webkit-scrollbar-track {
    background: #0a1628;
}

::-webkit-scrollbar-thumb {
    background: rgba(94, 234, 212, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(94, 234, 212, 0.5);
}

/* ── Form Styles ── */
select option {
    background: #0a1628;
    color: #ffffff;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .geo-circle--1 {
        width: 300px;
        height: 300px;
    }
    .geo-circle--2 {
        width: 200px;
        height: 200px;
    }
    .geo-rect--1 {
        width: 60px;
        height: 60px;
    }
    .geo-rect--2 {
        width: 40px;
        height: 40px;
    }
    .geo-triangle {
        border-left: 30px solid transparent;
        border-right: 30px solid transparent;
        border-bottom: 52px solid rgba(94, 234, 212, 0.06);
    }
}