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

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

body {
    overflow-x: hidden;
}

/* Hero Gradient */
.hero-gradient {
    background: linear-gradient(135deg, 
        #1c1c1f 0%, 
        #27272a 30%, 
        #3f3f46 60%, 
        #1c1c1f 100%
    );
}

/* Hero Animations */
.hero-badge {
    animation: heroFadeUp 0.8s ease-out 0.2s both;
}

.hero-title {
    animation: heroFadeUp 0.8s ease-out 0.4s both;
}

.hero-subtitle {
    animation: heroFadeUp 0.8s ease-out 0.6s both;
}

.hero-cta {
    animation: heroFadeUp 0.8s ease-out 0.8s both;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-logo-text {
    transition: color 0.4s ease;
}

#navbar.scrolled .nav-logo-text {
    color: #1c1c1f;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #ff5733;
    transition: width 0.3s ease;
}

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

#navbar.scrolled .nav-link {
    color: #52525b;
}

#navbar.scrolled .nav-link:hover {
    color: #e84325;
}

/* Mobile Menu */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

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

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

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

#mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

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

/* Service Cards */
.service-card {
    transition: background-color 0.5s ease;
}

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

.reveal[data-reveal="true"] {
    opacity: 0;
    transform: translateY(40px);
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal[data-reveal="true"] {
        opacity: 1;
        transform: none;
    }
}

/* Selection */
::selection {
    background: #ff5733;
    color: white;
}

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

::-webkit-scrollbar-track {
    background: #f6f6f7;
}

::-webkit-scrollbar-thumb {
    background: #c7c7cc;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1aa;
}