/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #020615;
}
::-webkit-scrollbar-thumb {
    background: #10b981;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #34d399;
}

/* Selection */
::selection {
    background: rgba(16, 185, 129, 0.3);
    color: #fff;
}

/* Navbar Transition */
.navbar-scrolled {
    background: rgba(2, 6, 21, 0.9) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Service Cards */
.service-card {
    background: rgba(255, 255, 255, 0.03);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(16, 185, 129, 0.1);
}

/* Mobile Menu */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

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

/* Scroll Reveal Animations (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; }
}

/* 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;
    }
}

/* Focus styles */
a:focus-visible, button:focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Form styles */
input, textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    width: 100%;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

input::placeholder, textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* Success message */
.success-message {
    display: none;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    font-weight: 500;
    animation: fadeIn 0.3s ease;
}

.success-message.show {
    display: block;
}

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