/* ============================================
   Compressor Industries — Custom Styles
   Premium Dark Luxury | Emerald + Cream + Gold
   ============================================ */

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(212, 168, 67, 0.3);
    color: #fefdf8;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a0f0d;
}
::-webkit-scrollbar-thumb {
    background: #24322c;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #34d399;
}

/* --- Scroll Reveal Animations --- */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.scroll-reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.scroll-reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }
.scroll-reveal[data-reveal-delay="4"] { transition-delay: 0.4s; }

/* Hidden state for reduced motion preference */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Navbar --- */
#navbar {
    transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(10, 15, 13, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 168, 67, 0.08), 0 4px 30px rgba(0, 0, 0, 0.4);
}

/* --- Mobile Menu --- */
.mobile-link {
    opacity: 1;
    transition: color 0.3s ease;
}

/* --- Hero Floating Cards Animation --- */
@keyframes float-1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}
@keyframes float-2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}
@keyframes float-3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
}

.hero-float-1 { animation: float-1 6s ease-in-out infinite; }
.hero-float-2 { animation: float-2 7s ease-in-out infinite; }
.hero-float-3 { animation: float-3 5s ease-in-out infinite; }

/* --- Gold shimmer on CTA buttons --- */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        105deg,
        transparent 40%,
        rgba(255, 255, 255, 0.15) 50%,
        transparent 60%
    );
    background-size: 200% 100%;
    animation: shimmer 4s ease-in-out infinite;
    pointer-events: none;
}

/* --- Image hover zoom --- */
.group img {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Focus styles --- */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* --- Select dropdown styling --- */
select option {
    background: #111a15;
    color: #fdf9f0;
    padding: 8px;
}

/* --- Mobile menu transitions --- */
#mobile-menu {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#mobile-menu.open {
    transform: translateX(0);
}

#mobile-menu.closed {
    transform: translateX(100%);
}

/* --- Hamburger animation --- */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
    width: 20px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.15;
    }
}

/* --- Reduced 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;
    }
}