/* ========================================
   Metro Industrial Center — Custom Styles
   ======================================== */

/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: #a81635;
    color: #fff;
}

/* ========================================
   Hero Animations
   ======================================== */
.hero-eyebrow {
    opacity: 0;
    animation: fadeDown 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-title {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 0.5s;
}

.hero-subtitle {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 0.8s;
}

.hero-ctas {
    opacity: 0;
    animation: fadeUp 1s ease forwards;
    animation-delay: 1.1s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Scroll line animation */
.scroll-line {
    animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {
    0% {
        top: -12px;
        opacity: 1;
    }
    50% {
        top: 20px;
        opacity: 0.5;
    }
    100% {
        top: 32px;
        opacity: 0;
    }
}

/* ========================================
   Scroll Reveal (progressive enhancement)
   ======================================== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s ease, transform 0.8s 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; }
}

/* Default state: always visible for accessibility */
.reveal,
.reveal.revealed {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal:not(.revealed) {
        opacity: 0;
        transform: translateY(32px);
    }
}

/* ========================================
   Section Labels
   ======================================== */
.section-label {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.section-label.revealed {
    opacity: 1;
}

.section-label-light {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.section-label-light.revealed {
    opacity: 1;
}

/* ========================================
   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, #a81635, transparent);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

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

/* ========================================
   Approach Steps
   ======================================== */
.approach-step {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.approach-step.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Contact Items
   ======================================== */
.contact-item {
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.contact-item.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   Navbar Scroll State
   ======================================== */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(254, 252, 251, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

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

.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

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

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

/* Menu line animation */
.menu-line {
    display: block;
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#menuBtn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.5rem;
}

/* ========================================
   Form Focus States
   ======================================== */
input:focus,
textarea:focus,
select:focus {
    border-color: #a81635 !important;
}

input::placeholder,
textarea::placeholder {
    color: #d6d3d1;
}

/* ========================================
   Smooth Scroll Offset for Fixed Nav
   ======================================== */
section[id] {
    scroll-margin-top: 80px;
}

/* ========================================
   Utility
   ======================================== */
img {
    max-width: 100%;
    height: auto;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}