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

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

body {
    overflow-x: hidden;
}

::selection {
    background: #f4b8a0;
    color: #3D2B1F;
}

/* ===== Scroll Reveal ===== */
.reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: no-preference) {
    .reveal-on-scroll {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal-on-scroll.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .service-card {
        opacity: 0;
        transform: translateY(25px);
    }
    
    .service-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .approach-card {
        opacity: 0;
        transform: translateY(25px);
    }
    
    .approach-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Floating Cards Animation ===== */
@media (prefers-reduced-motion: no-preference) {
    .floating-card {
        animation: floatCard 4s ease-in-out infinite;
    }
    
    .card-1 {
        animation-delay: 0s;
    }
    
    .card-2 {
        animation-delay: 1.3s;
    }
    
    .card-3 {
        animation-delay: 2.6s;
    }
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

/* ===== Decorative floating shapes ===== */
@media (prefers-reduced-motion: no-preference) {
    .animate-float {
        animation: floatShape 6s ease-in-out infinite;
    }
    
    .animate-float-delayed {
        animation: floatShape 8s ease-in-out infinite reverse;
    }
    
    .animate-float-slow {
        animation: floatShape 10s ease-in-out infinite;
    }
    
    @keyframes floatShape {
        0%, 100% { transform: translateY(0px) rotate(45deg); }
        50% { transform: translateY(-15px) rotate(45deg); }
    }
    
    .animate-scroll-indicator {
        animation: scrollDown 1.5s ease-in-out infinite;
    }
    
    @keyframes scrollDown {
        0% { transform: translateY(-100%); opacity: 0; }
        50% { opacity: 1; }
        100% { transform: translateY(100%); opacity: 0; }
    }
}

/* ===== Header Scroll State ===== */
#site-header.scrolled {
    background: rgba(253, 248, 240, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(61, 43, 31, 0.08);
}

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

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

/* ===== Nav link hover effect ===== */
.nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #C0603A;
    border-radius: 1px;
    margin: 2px auto 0;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 60%;
}

/* ===== Button ripple on focus ===== */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #C0603A;
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: #FDF8F0;
}

::-webkit-scrollbar-thumb {
    background: #d4a56a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #C0603A;
}