/* ========== BASE & RESET ========== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

/* Smooth scrolling is handled via CSS */
html {
    scroll-padding-top: 80px;
}

/* ========== NAVIGATION ========== */
#site-header {
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#site-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #F26840, #FF916E);
    border-radius: 1px;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #F26840 !important;
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.mobile-link:hover {
    border-bottom-color: #FFD5C8;
}

/* ========== HERO ========== */
.hero-accent-line {
    background: linear-gradient(180deg, #FFB8A0 0%, #F26840 50%, #C43A1A 100%);
}

/* ========== SERVICE CARDS ========== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #F26840, #FF916E);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

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

/* ========== APPROACH STEPS ========== */
.approach-step {
    position: relative;
}

.approach-step::after {
    content: '';
    position: absolute;
    top: 2rem;
    right: -1.5rem;
    width: 3rem;
    height: 2px;
    background: linear-gradient(90deg, #F26840, transparent);
    opacity: 0.4;
}

@media (max-width: 1023px) {
    .approach-step::after {
        display: none;
    }
}

/* ========== FORM ========== */
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='%23737388' stroke-width='2' stroke-linecap='round' stroke-linejoin='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;
}

/* ========== BACK TO TOP ========== */
#back-to-top {
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

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

#back-to-top:hover {
    transform: translateY(-2px);
}

/* ========== SCROLL REVEAL (progressive enhancement) ========== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .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; }
}

/* ========== FOCUS STYLES ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #F26840;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ========== SELECTION ========== */
::selection {
    background-color: #FFD5C8;
    color: #1E1E28;
}

/* ========== PRINT ========== */
@media print {
    #site-header,
    #back-to-top,
    #mobile-menu {
        display: none !important;
    }

    body {
        color: #1E1E28;
        background: white;
    }

    .service-card,
    .approach-step {
        break-inside: avoid;
    }
}