*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* Service Card Hover */
.service-card {
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Process Steps */
.process-step {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.process-step.visible {
    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(250, 248, 245, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

/* Mobile Menu */
#mobile-menu {
    backdrop-filter: blur(20px);
}

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

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

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

/* Hamburger */
.hamburger-line {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

#mobile-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#mobile-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.5rem;
}

/* Selection */
::selection {
    background: rgba(217, 74, 43, 0.15);
    color: #7a291b;
}

/* Focus */
:focus-visible {
    outline: 2px solid #d94a2b;
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: #faf8f5;
}

::-webkit-scrollbar-thumb {
    background: #d4be94;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #b89564;
}

/* Print */
@media print {
    nav, #contact-form, .animate-bounce { display: none; }
    body { background: white; }
    .reveal { opacity: 1; transform: none; }
}