:root {
    --bg-bright: #f8fafc;
    --panel-bright: rgba(255, 255, 255, 0.65);
    --text-bright: #1e293b;
    --accent-bright: #047857;
    --subtle-bright: #475569;

    --bg-dark: #030712;
    --panel-dark: rgba(15, 23, 42, 0.45);
    --text-dark: #f8fafc;
    --accent-dark-1: #10b981;
    --accent-dark-2: #06b6d4;
    --subtle-dark: #94a3b8;
}
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-bright);
    color: var(--text-bright);
    font-family: 'Satoshi', sans-serif;
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html[lang="ar"] body, html[lang="ar"] .hero-title, html[lang="ar"] .section-title, html[lang="ar"] .bento-card {
    font-family: 'IBM Plex Sans Arabic', sans-serif;
}

html.dark body {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

.bento-card {
    background-color: var(--panel-bright);
    border: 1px solid rgba(30, 41, 59, 0.1);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transition-property: background-color, border-color, box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 0.4s;
}

html.dark .bento-card {
    background-color: var(--panel-dark);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.hero-title, .section-title {
    font-family: 'Clash Display', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.subtle-text {
    color: var(--subtle-bright);
    transition-property: color;
    transition-duration: 0.4s;
}

html.dark .subtle-text {
    color: var(--subtle-dark);
}

.accent-text {
    color: var(--accent-bright);
    transition-property: color;
    transition-duration: 0.4s;
}

html.dark .accent-text {
    color: var(--accent-dark-1);
}

.btn-primary {
    background-color: var(--accent-bright);
    color: var(--bg-bright);
    transition-property: background-color, color, transform, box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 0.2s;
}

html.dark .btn-primary {
    background-color: var(--accent-dark-1);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 20px -5px rgba(16, 185, 129, 0.3);
}

.perspective-viewport {
    perspective: 1500px;
}

.interactive-3d {
    transform-style: preserve-3d;
    transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.interactive-3d-inner {
    transform: translateZ(50px);
}

.digital-screen-pulse {
    animation: digital-pulse 4s infinite alternate ease-in-out;
}

@keyframes digital-pulse {
    0% { transform: translateY(0px); box-shadow: 0 0 20px rgba(16, 185, 129, 0.1); }
    100% { transform: translateY(-5px); box-shadow: 0 0 40px rgba(16, 185, 129, 0.3); }
}

.scanner-grid {
    background: linear-gradient(var(--accent-dark-1), var(--accent-dark-1) 1px, transparent 1px, transparent 20px),
                linear-gradient(90deg, var(--accent-dark-1), var(--accent-dark-1) 1px, transparent 1px, transparent 20px);
    background-size: 20px 20px;
    opacity: 0;
    transition-property: opacity;
    transition-duration: 0.4s;
}
html.dark .scanner-grid { opacity: 0.1; }

.scanner-beam {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-dark-2), transparent);
    box-shadow: 0 0 15px 3px var(--accent-dark-2);
    animation: scan 4s infinite cubic-bezier(0.5, 0, 0.5, 1);
    opacity: 0;
}
html.dark .scanner-beam { opacity: 1; }

@keyframes scan {
    0% { transform: translateY(0); }
    50% { transform: translateY(calc(100% - 3px)); }
    100% { transform: translateY(0); }
}

.blueprint-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
.blueprint-item {
    border: 1px solid;
    border-color: var(--subtle-bright);
    transition-property: background-color, border-color, color, box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 0.25s;
    position: relative;
    overflow: hidden;
}
html.dark .blueprint-item { border-color: var(--subtle-dark); }

.blueprint-item:hover {
    background-color: var(--accent-dark-1);
    border-color: var(--accent-dark-1);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.blueprint-item::before, .blueprint-item::after {
    content: '';
    position: absolute;
    background-color: var(--accent-dark-2);
    opacity: 0.3;
    transition: transform 0.4s ease;
}
.blueprint-item::before { top: 10px; bottom: 10px; left: 50%; width: 1px; transform: scaleY(0); }
.blueprint-item::after { left: 10px; right: 10px; top: 50%; height: 1px; transform: scaleX(0); }
.blueprint-item:hover::before { transform: scaleY(1); }
.blueprint-item:hover::after { transform: scaleX(1); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background-color: var(--subtle-bright);
    border-radius: 10px;
    transition-property: background-color;
    transition-duration: 0.4s;
}
html.dark ::-webkit-scrollbar-thumb { background-color: var(--subtle-dark); }
::-webkit-scrollbar-thumb:hover { background-color: var(--accent-bright); }
html.dark ::-webkit-scrollbar-thumb:hover { background-color: var(--accent-dark-1); }

.partner-logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}
.partner-logo {
    height: 60px;
    max-width: 180px;
    object-fit: contain;
    filter: grayscale(100%) contrast(0) brightness(1.5);
    opacity: 0.7;
    transition-property: filter, opacity;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 0.4s;
}
html.dark .partner-logo {
     filter: invert(1) grayscale(100%) brightness(2);
}
.partner-logo:hover {
    filter: none;
    opacity: 1;
}

details summary {
    cursor: pointer;
    list-style: none;
}
details summary::-webkit-details-marker { display: none; }

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

.focus-ring:focus-visible {
    outline: 3px solid var(--accent-dark-2);
    outline-offset: 3px;
    box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.3);
}

#main-header.scrolled {
    background-color: var(--panel-bright);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}
html.dark #main-header.scrolled {
    background-color: var(--panel-dark);
}
#header-logo.scrolled {
    width: 3rem; 
    height: 3rem; 
}