/* ============================================
   Insight Logistics — Custom Styles
   ============================================ */

/* Base & Smooth Scrolling */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Selection Color */
::selection {
    background-color: rgba(13, 148, 136, 0.3);
    color: #0f172a;
}

/* ============================================
   Navigation
   ============================================ */
#navbar {
    transition: background-color 0.5s ease, box-shadow 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #5eead4;
    transition: width 0.3s ease;
}

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

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

#hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, white, transparent);
    pointer-events: none;
    z-index: 1;
}

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0d9488, #5eead4);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

/* ============================================
   Scroll Reveal Animations
   (Progressive enhancement — content visible without JS)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .reveal[data-delay="100"] { transition-delay: 0.1s; }
    .reveal[data-delay="200"] { transition-delay: 0.2s; }
    .reveal[data-delay="300"] { transition-delay: 0.3s; }
    .reveal[data-delay="400"] { transition-delay: 0.4s; }
    .reveal[data-delay="500"] { transition-delay: 0.5s; }
}

/* When JS is active, add animated state */
.js-active .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.js-active .reveal.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Mobile Menu
   ============================================ */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

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

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

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ============================================
   Contact Form
   ============================================ */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    #hero::after {
        height: 60px;
    }
}

/* ============================================
   Focus Visible for Accessibility
   ============================================ */
*:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    nav, #contact, .map-section {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}