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

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

body {
    overflow-x: hidden;
}

/* Navbar */
#navbar {
    background: rgba(255, 255, 255, 0);
    transition: background 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(123, 45, 94, 0.08);
}

/* Mobile menu lines */
.menu-line {
    display: block;
    width: 20px;
    height: 1.5px;
    background-color: #7B2D5E;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: translateX(-50%) rotate(45deg);
    top: 5px;
}

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

#menu-btn.active .menu-line:nth-child(3) {
    transform: translateX(-50%) rotate(-45deg);
    top: 5px;
}

/* Mobile links */
.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

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

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

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
}

/* Stagger children */
.reveal-grid > * {
    transition-delay: calc(var(--i, 0) * 0.08s);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-grid > * {
        opacity: 0;
        transform: translateY(20px);
    }
}