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

html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll line animation */
.scroll-line {
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
}

/* Navigation scroll state */
#site-header.scrolled {
    background: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(120, 50, 70, 0.08);
}

#site-header.scrolled .font-serif {
    color: #562331;
}

/* Nav links */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #d97706;
    transition: width 0.3s ease;
}

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

/* Mobile menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s ease forwards;
    opacity: 0;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile toggle animation */
#mobile-toggle.active #bar1 {
    transform: translateY(4px) rotate(45deg);
}

#mobile-toggle.active #bar2 {
    opacity: 0;
}

#mobile-toggle.active #bar3 {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.5rem;
}

/* Service cards */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #d97706, transparent);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* Capability cards */
.capability-card {
    position: relative;
    overflow: hidden;
}

.capability-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(to top, rgba(86, 35, 49, 0.03), transparent);
    transition: height 0.5s ease;
}

.capability-card:hover::after {
    height: 100%;
}

/* Selection color */
::selection {
    background: rgba(168, 78, 104, 0.15);
    color: #562331;
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    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; }

/* Select styling */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a84e68' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #faf5f0;
}

::-webkit-scrollbar-thumb {
    background: #d9a3b5;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a84e68;
}

/* Form focus states */
input:focus,
textarea:focus,
select:focus {
    box-shadow: 0 0 0 3px rgba(168, 78, 104, 0.08);
}

/* Image loading placeholder */
img {
    background-color: #f5f0eb;
}

/* Print styles */
@media print {
    #site-header,
    #mobile-menu,
    .scroll-line {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    .service-card,
    .capability-card {
        break-inside: avoid;
    }
}