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

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

body {
    overflow-x: hidden;
}

::selection {
    background: #c44122;
    color: white;
}

/* ===== Mobile Menu ===== */
.mobile-link {
    display: block;
}

/* ===== Floating Cards Animation ===== */
@keyframes float-1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
}

@keyframes float-2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes float-3 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(0.5deg); }
}

.floating-card-1 {
    animation: float-1 4s ease-in-out infinite;
}

.floating-card-2 {
    animation: float-2 5s ease-in-out infinite;
}

.floating-card-3 {
    animation: float-3 4.5s ease-in-out infinite;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 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; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ===== Back to Top ===== */
.back-to-top {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:not(.visible) {
    transform: translateY(10px);
}

/* ===== Service Card Hover ===== */
.service-card {
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

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

/* ===== Nav Scroll State ===== */
.nav-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

/* ===== Process Step Connector ===== */
.process-step:not(:last-child)::after {
    content: '';
}

/* ===== Responsive adjustments ===== */
@media (max-width: 640px) {
    .floating-card-1,
    .floating-card-2,
    .floating-card-3 {
        display: none;
    }
}

/* ===== Focus Visible ===== */
:focus-visible {
    outline: 2px solid #c44122;
    outline-offset: 2px;
}

/* ===== Smooth scrollbar ===== */
@media (prefers-reduced-motion: no-preference) {
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #f4f4f0;
    }
    ::-webkit-scrollbar-thumb {
        background: #d6d6cf;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #b8b8af;
    }
}