/* === Custom Styles for Howeth Commercial Refrigeration Co. === */

/* Base */
html {
    scroll-behavior: smooth;
}

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

/* === Navigation === */
.nav-fixed {
    transition: box-shadow 0.3s ease, background 0.3s ease;
}

.nav-fixed.scrolled {
    box-shadow: 0 4px 20px rgba(123, 45, 59, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #7B2D3B;
    border-radius: 1px;
    transition: all 0.2s ease;
    transform: translateX(-50%);
}

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

/* === Hero === */
#hero {
    position: relative;
}

/* === 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, #7B2D3B, #ff8c8c);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover::before {
    opacity: 1;
}

/* === Industry Tags === */
.industry-tag {
    cursor: default;
}

/* === Contact 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='%2378716C' stroke-width='2.5' 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;
}

/* === Back to Top === */
.back-to-top {
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* === Mobile Menu === */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

#mobile-menu.open {
    max-height: 400px;
    padding-bottom: 0.5rem;
}

/* === Scroll Reveal (progressive enhancement) === */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s 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,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #7B2D3B;
    outline-offset: 2px;
    border-radius: 0.5rem;
}

/* === Responsive adjustments === */
@media (max-width: 640px) {
    .font-serif {
        font-size: 1.75rem;
    }
}