/* ── Base ── */
*, *::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;
}

::selection {
    background: rgba(72, 192, 138, 0.2);
    color: #1a2450;
}

/* ── Hero Gradient ── */
.hero-gradient {
    background: linear-gradient(
        135deg,
        #070a1c 0%,
        #0d1230 25%,
        #1a2450 50%,
        #0d1230 75%,
        #070a1c 100%
    );
    animation: gradientShift 12s ease-in-out infinite;
    background-size: 400% 400%;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ── Hero Animations ── */
.hero-badge {
    opacity: 0;
    animation: fadeDown 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-headline {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 0.5s;
}

.hero-subtitle {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 0.8s;
}

.hero-cta {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 1.1s;
}

@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.reveal-section[data-revealed="false"] {
    opacity: 0;
    transform: translateY(30px);
}

.card-item {
    transition: background-color 0.5s ease;
}

/* ── Navbar ── */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(26, 36, 80, 0.06);
}

#navbar.scrolled .nav-link {
    color: #1a2450;
}

#navbar.scrolled .nav-link:hover {
    color: #48c08a;
}

#navbar.scrolled .font-display {
    color: #1a2450;
}

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.menu-line {
    transition: all 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(3px, -3px);
}

/* ── Utility ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-section {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal-section.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}