/* ===== BASE & RESET ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: rgba(255, 107, 74, 0.3);
    color: #fff;
}

/* ===== NAVBAR SCROLL STATE ===== */
#navbar.scrolled {
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 107, 74, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ===== MOBILE MENU ===== */
#mobileMenu.active {
    display: block;
    animation: slideDown 0.3s ease;
}

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

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

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

#menuBtn.active .menu-line:nth-child(3) {
    width: 24px;
    margin-left: 0;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== SERVICE CARDS ===== */
.service-card {
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .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; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ===== BUTTON HOVER GLOW ===== */
a:hover {
    transition: all 0.2s ease;
}

/* ===== FORM STYLES ===== */
select option {
    background-color: #1a1a1a;
    color: #fff;
}

input:focus, textarea:focus, select:focus {
    outline: none;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #3a3a3a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff6b4a;
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 640px) {
    html {
        scroll-padding-top: 70px;
    }

    #hero h1 {
        font-size: 2.75rem;
    }

    .service-card {
        padding: 1.5rem;
    }
}

@media (min-width: 641px) and (max-width: 1023px) {
    #hero h1 {
        font-size: 4rem;
    }
}