/* ========== CUSTOM STYLES ========== */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes floatDelay {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-15px) scale(1.03); }
}

@keyframes spinner {
    to { stroke-dashoffset: -64; }
}

.animate-fade-up {
    animation: fadeInUp 0.7s ease-out both;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float-delay {
    animation: floatDelay 8s ease-in-out infinite;
}

.spinner-circle {
    animation: spinner 1s linear infinite;
}

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

.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; }

/* ========== HEADER ========== */
#header.scrolled {
    background: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

#header.scrolled .font-serif {
    color: #1f2937 !important;
}

/* ========== NAV LINKS ========== */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #e8735a;
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 1px;
}

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

/* ========== MOBILE MENU ========== */
.mobile-link {
    position: relative;
}

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

/* ========== SERVICE CARDS ========== */
.service-card {
    transform: translateY(0);
}

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

/* ========== TECH CARDS ========== */
.tech-card {
    transform: translateY(0);
}

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

/* ========== INPUT FOCUS ========== */
input:focus, select:focus, textarea:focus {
    outline: none;
}

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='%236b7280' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.2;
    }
}