body {
    background-color: #0f0f0f;
    color: #f3f4f6;
    font-family: 'Inter', sans-serif;
}

.glass-header {
    background: rgba(15, 15, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-bg {
    background: linear-gradient(135deg, rgba(15,15,15,0.9) 0%, rgba(26,26,26,0.95) 100%), 
                radial-gradient(circle at top right, rgba(245,158,11,0.15), transparent 40%),
                radial-gradient(circle at bottom left, rgba(245,158,11,0.05), transparent 40%);
    position: relative;
    overflow: hidden;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.5;
    z-index: 0;
}

.card-hover {
    transition: all 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.3);
}

.img-hover img {
    transition: transform 0.5s ease;
}
.img-hover:hover img {
    transform: scale(1.05);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f0f0f;
}
::-webkit-scrollbar-thumb {
    background: #252525;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #f59e0b;
}

/* Animations for intersection observer */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.whatsapp-float {
    animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.modal {
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Hero Carousels (Mobile & Desktop) */
.mobile-hero-carousel .carousel-img,
.desktop-hero-carousel .carousel-img {
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    z-index: 0;
}
.mobile-hero-carousel .carousel-img.active,
.desktop-hero-carousel .carousel-img.active {
    opacity: 1;
    z-index: 1;
}

/* Revolutionary Mobile Footer Tabs */
.mobile-folder-tabs {
    display: flex;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none;  /* IE and Edge */
    margin-bottom: -1px; /* Align with content border */
    position: relative;
    z-index: 6;
}
.mobile-folder-tabs::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}
.mobile-folder-tab {
    position: relative;
    padding: 0.75rem 1rem;
    background-color: #080808;
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.25s ease-in-out;
    border: 1px solid #141414;
    border-bottom: 1px solid #1f2937;
    margin-right: -4px;
    z-index: 1;
    white-space: nowrap;
    transform: translateY(1px) scale(0.95);
}
.mobile-folder-tab.active {
    background-color: #0f0f0f;
    color: #f59e0b;
    z-index: 10;
    transform: translateY(0) scale(1);
    border-top: 2px solid #f59e0b;
    border-left: 1px solid #1f2937;
    border-right: 1px solid #1f2937;
    border-bottom: 1px solid #0f0f0f; /* Overlap content border */
    box-shadow: 0 -4px 12px rgba(0,0,0,0.3);
}
.mobile-folder-content {
    display: none;
    background-color: #0f0f0f;
    border: 1px solid #1f2937;
    border-radius: 0 0.5rem 0.5rem 0.5rem;
    padding: 1.5rem;
    position: relative;
    z-index: 5;
    animation: fadeInTab 0.3s ease-out forwards;
}
.mobile-folder-content.active {
    display: block;
}
@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}