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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(245, 200, 66, 0.3);
    color: #fff;
}

/* ===== Navbar ===== */
#navbar {
    backdrop-filter: blur(0px);
    transition: backdrop-filter 0.5s ease, background 0.5s ease, padding 0.3s ease;
}

#navbar.scrolled {
    backdrop-filter: blur(20px);
    background: rgba(15, 5, 16, 0.85);
    padding: 0;
}

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

#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s ease forwards;
}

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

#mobile-toggle.active .h-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}
#mobile-toggle.active .h-line:nth-child(2) {
    opacity: 0;
}
#mobile-toggle.active .h-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 5rem;
    margin-right: 0;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== 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; }

/* ===== Service Cards ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #F5C842, transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover::before {
    opacity: 1;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1a0a1e;
}
::-webkit-scrollbar-thumb {
    background: #4a2060;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #6b3080;
}

/* ===== Form Select Arrow ===== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239b59b6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ===== Hero parallax hint ===== */
#hero img {
    will-change: transform;
}

/* ===== Utility ===== */
@media (max-width: 767px) {
    html {
        scroll-padding-top: 70px;
    }
}