/* ==========================================================================
   Atlas Cores - SYSTEM DESIGN & PREMIUM WEB STYLE (style.css) - OPTIMIZED
   ========================================================================== */

/* 1. Root & Color Design Tokens */
:root, html[color-scheme="light"] {
    /* Color Scheme Toggle Support */
    color-scheme: light;
    
    /* Font families */
    --font-primary: 'Cairo', system-ui, -apple-system, sans-serif;
    --font-numbers: 'Outfit', sans-serif;

    /* Light Mode Colors (Default) */
    --bg-primary: oklch(0.98 0.01 80);
    --bg-secondary: oklch(0.95 0.015 80);
    --bg-tertiary: oklch(0.91 0.02 80);
    
    --text-primary: oklch(0.20 0.02 80);
    --text-secondary: oklch(0.40 0.03 80);
    --text-muted: oklch(0.55 0.03 80);
    
    --primary-color: oklch(0.74 0.125 82); /* Premium Gold #c5a059 */
    --primary-hover: oklch(0.80 0.12 85); /* Bright Gold #ecc16f */
    
    --accent-glow: oklch(0.78 0.15 85); /* Glowing Gold #dfb76c */
    --accent-glow-alpha: rgba(223, 183, 108, 0.12);
    
    --border-color: oklch(0.88 0.02 80);
    --border-focus: oklch(0.74 0.125 82);
    
    /* Status Colors */
    --success-color: oklch(0.75 0.14 140);
    --warning-color: oklch(0.80 0.16 70);
    --danger-color: oklch(0.65 0.20 25);
    
    /* Layout Constants */
    --container-max-width: 1200px;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Light Shadows */
    --shadow-premium: 0 10px 30px -10px rgba(0,0,0,0.1);
    --shadow-glow: 0 0 15px rgba(197, 160, 89, 0.1);
    
    --gold-gradient: linear-gradient(135deg, #f2e3c6 0%, #c5a059 50%, #997327 100%);
    
    /* Scrollbar */
    scrollbar-color: var(--primary-color) var(--bg-secondary);
    scrollbar-width: thin;
}

html[color-scheme="dark"] {
    color-scheme: dark;
    
    /* Dark Mode Colors */
    --bg-primary: oklch(0.15 0.05 255);
    --bg-secondary: oklch(0.19 0.06 255);
    --bg-tertiary: oklch(0.12 0.045 255);
    
    --text-primary: oklch(0.97 0.01 255);
    --text-secondary: oklch(0.80 0.02 255);
    --text-muted: oklch(0.58 0.02 255);
    
    --border-color: oklch(0.74 0.125 82 / 25%);
    
    /* Dark Shadows */
    --shadow-premium: 0 15px 40px -15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 25px rgba(197, 160, 89, 0.25);
}
/* Force specific colors for elements when overridden */
.dark-theme-override {
    color-scheme: dark;
    --bg-primary: oklch(0.15 0.05 255);
    --bg-secondary: oklch(0.19 0.06 255);
    --bg-tertiary: oklch(0.12 0.045 255);
    --text-primary: oklch(0.97 0.01 255);
    --text-secondary: oklch(0.80 0.02 255);
    --border-color: oklch(0.74 0.125 82 / 25%);
}

/* 2. Global Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    -webkit-tap-highlight-color: transparent;
    /* تم إزالة overscroll-behavior و overflow-x لمنع تجميد التاتش */
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden; /* بنخلي إخفاء العرض الزايد هنا بس */
    line-height: 1.7;
    background-image: 
        radial-gradient(at 0% 0%, var(--accent-glow-alpha) 0px, transparent 50%),
        radial-gradient(at 100% 100%, var(--accent-glow-alpha) 0px, transparent 50%);
    background-blend-mode: overlay;
    /* تم إزالة overscroll-behavior-y */
}

/* Reduced motion for accessibility & mobile performance */
@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; }
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-color); }

/* Utility */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-center { text-align: center; }
.w-full { width: 100%; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: 10px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    user-select: none;
    text-decoration: none;
    touch-action: manipulation;
    min-height: 44px;
}

.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }

.btn-primary {
    background-color: var(--bg-tertiary);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}
.btn-outline:hover {
    border-color: var(--primary-hover);
    background-color: var(--bg-secondary);
    color: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-gradient {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-color) 100%);
    color: white;
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(197, 160, 89, 0.2);
}
.btn-gradient:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--bg-tertiary) 100%);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(197, 160, 89, 0.4), var(--shadow-glow);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--accent-glow);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

/* Gradients and typography */
.gradient-text {
    background: linear-gradient(135deg, var(--text-primary), var(--accent-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.accent-text {
    color: var(--accent-glow);
    text-shadow: var(--shadow-glow);
}

/* 3. Header & Navigation */
.main-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(light-dark(oklch(0.98 0.01 250), oklch(0.09 0.015 240)), 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    will-change: transform;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-primary);
}

.logo-img {
    height: 4rem;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(223, 183, 108, 0.55)) drop-shadow(0 0 25px rgba(223, 183, 108, 0.2));
    transition: var(--transition-smooth);
}

.logo:hover .logo-img {
    transform: scale(1.1);
    filter: drop-shadow(0 0 16px rgba(223, 183, 108, 0.85)) drop-shadow(0 0 35px rgba(223, 183, 108, 0.35));
}

.logo-img-drawer {
    height: 5rem;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 12px rgba(223, 183, 108, 0.55)) drop-shadow(0 0 30px rgba(223, 183, 108, 0.2));
    margin-left: 0.8rem;
}

.logo-img-footer {
    height: 4.5rem;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 12px rgba(223, 183, 108, 0.55)) drop-shadow(0 0 30px rgba(223, 183, 108, 0.2));
}

.logo-text {
    font-weight: 700;
    font-size: 1.6rem;
    letter-spacing: 1.5px;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    text-shadow: none;
}

.footer-logo {
    margin-bottom: 1.5rem;
    display: inline-flex;
}

/* Floating Brand Logo in Hero Section */
.hero-logo-wrapper {
    margin-bottom: 2rem;
    display: flex;
    justify-content: flex-start;
}

.hero-brand-logo {
    height: 10rem;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 25px rgba(223, 183, 108, 0.7)) drop-shadow(0 0 50px rgba(223, 183, 108, 0.25));
    animation: floatLogo 4s ease-in-out infinite;
    transition: var(--transition-smooth);
    will-change: transform;
}

.hero-brand-logo:hover {
    filter: drop-shadow(0 0 35px rgba(223, 183, 108, 0.9)) drop-shadow(0 0 60px rgba(223, 183, 108, 0.4));
    transform: scale(1.05);
}

@keyframes floatLogo {
    0% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0); }
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 1.2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-glow);
    background-color: var(--bg-secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}
.theme-toggle:hover {
    border-color: var(--accent-glow);
    color: var(--accent-glow);
}

.icon-sun { display: none; }
html[color-scheme="light"] .icon-moon { display: none; }
html[color-scheme="light"] .icon-sun { display: block; }

/* Language Toggle */
.lang-toggle {
    background: transparent;
    border: 1px solid var(--accent-glow);
    color: var(--accent-glow);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-primary);
    transition: var(--transition-smooth);
    white-space: nowrap;
}
.lang-toggle:hover {
    background: var(--accent-glow);
    color: var(--bg-primary);
}
.lang-toggle svg { width: 16px; height: 16px; }

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 8px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

/* 4. Hero Section */
.hero-section {
    position: relative;
    padding: 5rem 0 4rem 0;
    overflow: hidden;
    scroll-margin-top: 5rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-title {
    font-size: clamp(1.6rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-metrics {
    display: flex;
    gap: 2.5rem;
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.metric-card {
    display: flex;
    flex-direction: column;
}

.metric-num {
    font-family: var(--font-numbers);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-glow);
    line-height: 1.1;
    margin-bottom: 0.25rem;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Glass Server Dashboard Card */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background-image: linear-gradient(135deg, rgba(3, 20, 39, 0.45), rgba(2, 13, 28, 0.95)), url('https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    border: 1px solid rgba(197, 160, 89, 0.35);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-premium), 0 0 30px rgba(197, 160, 89, 0.1);
}

.glass-server-card {
    width: 100%;
    max-width: 400px;
    background: rgba(light-dark(oklch(0.95 0.01 250), oklch(0.12 0.02 240)), 0.65);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(light-dark(oklch(0.85 0.02 240), oklch(0.22 0.03 235)), 0.5);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-premium), var(--shadow-glow);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
}

.glass-server-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-glow));
    border-radius: 16px 16px 0 0;
}

.glass-server-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background-color: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

.status-dot.pulsing { animation: pulseGlow 2s infinite; }

@keyframes pulseGlow {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.4; }
    100% { transform: scale(1); opacity: 1; }
}

.status-text {
    font-family: var(--font-numbers);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.status-icon { color: var(--accent-glow); width: 1.25rem; height: 1.25rem; }

.server-meters { display: flex; flex-direction: column; gap: 1rem; }

.meter-group { display: flex; flex-direction: column; gap: 0.4rem; }

.meter-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.meter-val { font-family: var(--font-numbers); color: var(--accent-glow); }

.meter-bar {
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-glow));
    border-radius: 10px;
    transition: width 1s ease-in-out;
}

.security-status-indicator {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--bg-tertiary);
    padding: 0.5rem;
    border-radius: 6px;
    border: 1px dashed var(--border-color);
}

.active-sec-icon { color: var(--success-color); width: 1rem; height: 1rem; }

.glass-server-card .card-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 0.8rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

/* 5. Services Section */
.services-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    position: relative;
    scroll-margin-top: 5rem;
    content-visibility: auto;
    contain-intrinsic-size: auto 800px;
}

.section-header {
    max-width: 700px;
    margin: 0 auto 3rem auto;
    text-align: center;
}

.section-tag {
    color: var(--accent-glow);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.section-title {
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 0;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: relative;
    overflow: hidden;
}

.service-card-image { width: 100%; height: 180px; overflow: hidden; position: relative; }

.service-card-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.service-card:hover .service-card-image img { transform: scale(1.06); }

.service-card-content {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex-grow: 1;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0; right: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-glow));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(197, 160, 89, 0.45);
    box-shadow: var(--shadow-premium), 0 10px 20px -10px rgba(197, 160, 89, 0.2);
}

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

.service-icon {
    width: 3.5rem; height: 3.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-glow);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    background-color: var(--primary-color);
    color: var(--bg-primary);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.service-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.75rem; }

.service-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    line-height: 1.7;
}

.service-link-btn {
    background: transparent;
    border: none;
    color: var(--accent-glow);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--transition-smooth);
}

.service-link-btn i { width: 1.1rem; height: 1.1rem; transition: transform var(--transition-smooth); }

.service-card:hover .service-link-btn i { transform: translateX(-4px); }

/* ===== HARDWARE SUPPLY SECTION ===== */
.hardware-section {
    padding: 5rem 0;
    position: relative;
    scroll-margin-top: 5rem;
    content-visibility: auto;
    contain-intrinsic-size: auto 900px;
}

.hardware-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.hardware-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 2rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.hardware-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-glow));
    opacity: 0;
    transition: var(--transition-smooth);
}

.hardware-card:hover {
    transform: translateY(-4px);
    border-color: rgba(197, 160, 89, 0.45);
    box-shadow: var(--shadow-premium), 0 8px 20px -8px rgba(197, 160, 89, 0.2);
}

.hardware-card:hover::before { opacity: 1; }

.hardware-card-icon {
    width: 3.5rem; height: 3.5rem;
    background: linear-gradient(135deg, var(--bg-tertiary), rgba(197, 160, 89, 0.1));
    border: 1px solid var(--border-color);
    color: var(--accent-glow);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.2rem;
    transition: var(--transition-smooth);
}

.hardware-card:hover .hardware-card-icon {
    background: var(--primary-color);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.08);
}

.hardware-card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.25rem; }

.hardware-card-subtitle {
    font-family: var(--font-numbers);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.hardware-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
    flex-grow: 1;
}

.hardware-items li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.hardware-items li i {
    width: 0.9rem; height: 0.9rem;
    color: var(--success-color);
    flex-shrink: 0;
}

.hardware-brands {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.2rem;
}

.hardware-brands span {
    font-family: var(--font-numbers);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-glow);
    background: rgba(197, 160, 89, 0.08);
    border: 1px solid rgba(197, 160, 89, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.3px;
}

.hardware-card .btn-hw-quote {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    width: 100%;
    border-radius: 8px;
}

/* Brands Marquee */
.brands-marquee {
    overflow: hidden;
    padding: 1.2rem 0;
    margin-bottom: 2rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.brands-track {
    display: flex;
    gap: 1rem;
    animation: marqueeScroll 30s linear infinite;
    white-space: nowrap;
    width: max-content;
    will-change: transform;
}

.brands-track.paused {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.brand-name {
    font-family: var(--font-numbers);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.brand-sep {
    color: var(--border-color);
    font-size: 0.6rem;
    display: flex;
    align-items: center;
}

/* Hardware CTA */
.hardware-cta {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(197, 160, 89, 0.05), rgba(197, 160, 89, 0.1));
    border: 1px solid rgba(197, 160, 89, 0.2);
    border-radius: 16px;
}

.hardware-cta p {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* 6. Native Dialog Styling */
.service-dialog, .mobile-drawer {
    border: none;
    background: transparent;
    max-width: 600px;
    width: 90%;
    margin: auto;
}

.service-dialog {
    opacity: 0;
    transform: scale(0.9) translateY(30px);
    transition: opacity 0.35s ease, transform 0.35s ease, display 0.35s ease allow-discrete, overlay 0.35s ease allow-discrete;
}

.service-dialog[open] { opacity: 1; transform: scale(1) translateY(0); }

@starting-style {
    .service-dialog[open] { opacity: 0; transform: scale(0.9) translateY(30px); }
}

.service-dialog::backdrop {
    background-color: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    transition: background-color 0.35s ease, backdrop-filter 0.35s ease, display 0.35s ease allow-discrete, overlay 0.35s ease allow-discrete;
}

.service-dialog[open]::backdrop {
    background-color: rgba(9, 11, 20, 0.8);
    backdrop-filter: blur(8px);
}

@starting-style {
    .service-dialog[open]::backdrop { background-color: rgba(0, 0, 0, 0); backdrop-filter: blur(0px); }
}

.dialog-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
    overscroll-behavior: contain ;
    touch-action: manipulation ;
    -webkit-overflow-scrolling: touch ;
}

.btn-close-dialog, .btn-close-drawer {
    position: absolute;
    top: 0.8rem; left: 0.8rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 1.8rem; height: 1.8rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition-smooth);
    touch-action: manipulation;
}
.btn-close-dialog:hover, .btn-close-drawer:hover {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.dialog-header {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.dialog-icon {
    width: 3rem; height: 3rem;
    background-color: var(--bg-tertiary);
    color: var(--accent-glow);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}

.dialog-header h3 { font-size: 1.4rem; font-weight: 700; }

.dialog-body { font-size: 1rem; color: var(--text-secondary); }
.dialog-body p { margin-bottom: 1.25rem; }
.dialog-body ul { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 2rem; }
.dialog-body ul li { display: flex; align-items: flex-start; gap: 0.6rem; }
.dialog-body ul li i { color: var(--success-color); width: 1.2rem; height: 1.2rem; margin-top: 0.2rem; flex-shrink: 0; }

.dialog-action-box {
    display: flex; justify-content: flex-end;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* Mobile Drawer */
.mobile-drawer {
    height: 100vh; max-height: 100vh; width: 280px;
    margin: 0 0 0 auto;
    transform: translateX(100%); opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease, display 0.35s ease allow-discrete, overlay 0.35s ease allow-discrete;
}

.mobile-drawer[open] { transform: translateX(0); opacity: 1; }

@starting-style { .mobile-drawer[open] { transform: translateX(100%); opacity: 0; } }

.mobile-drawer::backdrop {
    background-color: rgba(0, 0, 0, 0);
    transition: background-color 0.35s ease, display 0.35s ease allow-discrete, overlay 0.35s ease allow-discrete;
}

.mobile-drawer[open]::backdrop { background-color: rgba(9, 11, 20, 0.6); }

@starting-style { .mobile-drawer[open]::backdrop { background-color: rgba(0, 0, 0, 0); } }

.mobile-drawer {
    background-color: var(--bg-secondary);
    box-shadow: -10px 0 30px rgba(0,0,0,0.2);
    display: flex; flex-direction: column;
    padding: 1.5rem;
    border-left: 1px solid var(--border-color);
}

.drawer-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 2rem; padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.drawer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 1rem; }

.drawer-link {
    display: flex; align-items: center; gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.1rem; font-weight: 700;
    padding: 0.6rem; border-radius: 6px;
    transition: var(--transition-smooth);
}

.drawer-link:hover { background-color: var(--bg-tertiary); color: var(--accent-glow); }

.drawer-footer { margin-top: auto; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }

/* 7. Simulator Section */
.simulator-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    scroll-margin-top: 5rem;
    content-visibility: auto;
    contain-intrinsic-size: auto 700px;
}

.simulator-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem;
    margin-top: 2rem;
}

.simulator-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-premium);
}

.simulator-card .card-title {
    font-size: 1.3rem; font-weight: 700;
    margin-bottom: 1.75rem;
    display: flex; align-items: center; gap: 0.6rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.simulator-card .card-title i { color: var(--accent-glow); }

/* Form Controls */
.control-group, .form-group { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.5rem; }

.control-label, .form-group label {
    font-size: 0.95rem; font-weight: 700;
    color: var(--text-primary);
    display: flex; justify-content: space-between; align-items: center;
}

.control-val-display {
    color: var(--accent-glow);
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.slider-input {
    -webkit-appearance: none; appearance: none;
    width: 100%; height: 6px;
    background: var(--bg-tertiary);
    border-radius: 5px; outline: none;
}

.slider-input::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--accent-glow); cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: transform 0.15s ease;
}

.slider-input::-webkit-slider-thumb:hover { transform: scale(1.2); }

.range-labels { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); }

.select-input, .form-input, .textarea-input {
    width: 100%; padding: 0.75rem 1rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem; outline: none;
    transition: var(--transition-smooth);
}

.select-input:focus, .form-input:focus, .textarea-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

/* Switch */
.switch-container { display: flex; align-items: center; gap: 0.8rem; cursor: pointer; user-select: none; }
.switch-input { display: none; }

.switch-slider {
    width: 44px; height: 22px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    position: relative;
    transition: var(--transition-smooth);
}

.switch-slider::before {
    content: '';
    position: absolute;
    width: 16px; height: 16px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    top: 2px; right: 2px;
    transition: var(--transition-smooth);
}

.switch-input:checked + .switch-slider { background-color: var(--primary-color); border-color: var(--primary-color); }
.switch-input:checked + .switch-slider::before { transform: translateX(-22px); background-color: white; }

.switch-label-txt { font-size: 0.9rem; color: var(--text-secondary); }
.control-action { margin-top: 2rem; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-bottom: 1.5rem; }

.stat-box {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px; padding: 1.25rem;
    display: flex; align-items: center; gap: 1rem;
    transition: var(--transition-smooth);
}

.stat-box .stat-icon {
    width: 2.8rem; height: 2.8rem;
    background-color: var(--bg-secondary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
}

.stat-info { display: flex; flex-direction: column; }
.stat-lbl { font-size: 0.8rem; color: var(--text-muted); }
.stat-num { font-family: var(--font-numbers); font-size: 1.25rem; font-weight: 700; }

.stat-box.success .stat-icon { color: var(--success-color); background-color: rgba(34, 197, 94, 0.1); }
.stat-box.success .stat-num { color: var(--success-color); }
.stat-box.warning .stat-icon { color: var(--warning-color); background-color: rgba(234, 179, 8, 0.1); }
.stat-box.warning .stat-num { color: var(--warning-color); }
.stat-box.danger .stat-icon { color: var(--danger-color); background-color: rgba(239, 68, 68, 0.1); }
.stat-box.danger .stat-num { color: var(--danger-color); }

/* Graph */
.simulator-screen {
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 10px; padding: 1.25rem;
    color: #e2e8f0;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
    display: flex; flex-direction: column; gap: 0.8rem;
}

.screen-header {
    display: flex; justify-content: space-between;
    font-size: 0.8rem;
    border-bottom: 1px solid #1e293b;
    padding-bottom: 0.5rem; font-weight: 700;
}

.screen-title { display: flex; align-items: center; gap: 0.4rem; color: #94a3b8; }

.screen-graph {
    height: 100px;
    background-color: #020617;
    border-radius: 6px;
    position: relative; overflow: hidden;
}

.graph-grid-bg {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background-size: 20px 20px;
    background-image: 
        linear-gradient(to right, rgba(30, 41, 59, 0.3) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(30, 41, 59, 0.3) 1px, transparent 1px);
}

.wave-svg { width: 100%; height: 100%; position: relative; z-index: 2; }

.wave-path { stroke-dasharray: 1000; stroke-dashoffset: 0; animation: waveScroll 8s linear infinite; }

@keyframes waveScroll { from { stroke-dashoffset: 1000; } to { stroke-dashoffset: 0; } }

.screen-footer {
    font-size: 0.8rem; color: #38bdf8;
    background: rgba(56, 189, 248, 0.08);
    padding: 0.5rem; border-radius: 4px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

/* 8. ROI Calculator */
.marketing-section {
    padding: 5rem 0;
    background-color: var(--bg-primary);
    content-visibility: auto;
    contain-intrinsic-size: auto 600px;
}

.roi-calculator-layout {
    display: grid; grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem; margin-top: 1.5rem;
}

.roi-inputs {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px; padding: 1.5rem;
}

.roi-results {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px; padding: 1.5rem;
    display: flex; flex-direction: column;
}

.roi-results h4 {
    font-size: 1.15rem; font-weight: 700;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.6rem; margin-bottom: 1.25rem;
}

.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }

.result-box {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px; padding: 1rem;
    display: flex; flex-direction: column; text-align: center;
}

.result-lbl { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.result-num { font-family: var(--font-numbers); font-size: 1.5rem; font-weight: 700; }
.danger-text { color: var(--danger-color); }
.success-text { color: var(--success-color); }

.roi-saving-alert {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(197, 160, 89, 0.08));
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: 10px; padding: 1.5rem; text-align: center;
    flex-grow: 1;
    display: flex; flex-direction: column; justify-content: center; align-items: center;
}

.saving-title { font-size: 0.95rem; color: var(--text-secondary); font-weight: 700; margin-bottom: 0.4rem; }
.saving-num { font-family: var(--font-numbers); font-size: 2.2rem; font-weight: 700; color: var(--success-color); margin-bottom: 0.5rem; }
.saving-desc { font-size: 0.8rem; color: var(--text-muted); }

@keyframes highlightPulse {
    0% { box-shadow: 0 0 0 0 rgba(197, 160, 89, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(197, 160, 89, 0); }
    100% { box-shadow: 0 0 0 0 rgba(197, 160, 89, 0); }
}
.highlight-pulse { animation: highlightPulse 1s ease; }

/* 9. Contact Section */
.contact-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    scroll-margin-top: 5rem;
    content-visibility: auto;
    contain-intrinsic-size: auto 700px;
}

.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3.5rem; }

.contact-info-panel h2 { font-size: 2rem; font-weight: 700; line-height: 1.35; margin-bottom: 1.25rem; }
.contact-info-panel p { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 2.5rem; line-height: 1.8; }

.info-details { display: flex; flex-direction: column; gap: 1.5rem; }

.info-item { display: flex; align-items: flex-start; gap: 1rem; }

.info-icon {
    width: 2.8rem; height: 2.8rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent-glow); flex-shrink: 0;
}

.info-item h5 { font-size: 1rem; font-weight: 700; margin-bottom: 0.2rem; }
.info-item p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }

/* Contact Form */
.contact-form-panel {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px; padding: 2.5rem;
    box-shadow: var(--shadow-premium);
}

.contact-form-panel .panel-title {
    font-size: 1.3rem; font-weight: 700;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.req { color: var(--danger-color); margin-right: 0.2rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-input:user-invalid, .select-input:user-invalid, .textarea-input:user-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.error-msg { display: none; font-size: 0.8rem; color: var(--danger-color); margin-top: 0.2rem; }
.form-input:user-invalid ~ .error-msg, .select-input:user-invalid ~ .error-msg { display: block; }

/* 10. Footer */
.main-footer {
    background-color: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem 0;
    margin-top: auto;
}

.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.5fr; gap: 3.5rem; margin-bottom: 3rem; }
.footer-col-about p { font-size: 0.9rem; color: var(--text-secondary); margin: 1.25rem 0; }

.social-links { display: flex; gap: 0.75rem; }

.social-links a {
    width: 2.2rem; height: 2.2rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.social-links a:hover { background-color: var(--primary-color); color: white; transform: translateY(-2px); }

.footer-col-links h4, .footer-col-contact h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 1.5rem; }
.footer-col-links ul { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col-links ul li a { text-decoration: none; color: var(--text-secondary); font-size: 0.9rem; transition: var(--transition-smooth); }
.footer-col-links ul li a:hover { color: var(--accent-glow); padding-right: 4px; }
.footer-col-contact p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.25rem; }
.newsletter-form { display: flex; gap: 0.5rem; }
.newsletter-form input { flex-grow: 1; }

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem; font-size: 0.85rem; color: var(--text-muted);
}

/* 11. Popover */
.custom-popover {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0; width: 90%; max-width: 480px;
    box-shadow: var(--shadow-premium), var(--shadow-glow);
    margin: auto;
    opacity: 0; transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease, display 0.3s ease allow-discrete, overlay 0.3s ease allow-discrete;
}

.custom-popover[open] { opacity: 1; transform: scale(1); }
@starting-style { .custom-popover[open] { opacity: 0; transform: scale(0.95); } }
.custom-popover::backdrop { background-color: rgba(9, 11, 20, 0.5); }

.popover-content { padding: 1.5rem; position: relative; }
.btn-close-popover {
    position: absolute; top: 1rem; left: 1rem;
    background: transparent; border: none;
    color: var(--text-muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition-smooth);
}
.btn-close-popover:hover { color: var(--danger-color); }

.popover-header { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.5rem; }
.popover-header h4 { font-size: 1.1rem; font-weight: 700; }
.popover-icon { color: var(--accent-glow); }
.popover-body { font-size: 0.9rem; color: var(--text-secondary); }
.popover-body p { margin-bottom: 0.8rem; }
.popover-body ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }
.popover-body ul li { display: flex; align-items: center; gap: 0.5rem; }
.popover-body ul li::before { content: '\2713'; color: var(--success-color); font-weight: bold; }

.popover-tip {
    background-color: var(--bg-tertiary);
    padding: 0.6rem; border-radius: 6px;
    border-right: 3px solid var(--accent-glow);
}

/* 12. Toast */
.toast-container {
    position: fixed; bottom: 2rem; right: 2rem;
    display: flex; flex-direction: column; gap: 0.75rem;
    z-index: 1000;
}

.toast {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-right: 4px solid var(--primary-color);
    border-radius: 10px;
    padding: 1rem 1.5rem;
    min-width: 280px; max-width: 400px;
    box-shadow: var(--shadow-premium);
    display: flex; align-items: center; gap: 0.8rem;
    transform: translateY(20px); opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { border-right-color: var(--success-color); }
.toast-success i { color: var(--success-color); }
.toast-error { border-right-color: var(--danger-color); }
.toast-error i { color: var(--danger-color); }
.toast-msg { font-size: 0.9rem; font-weight: 700; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* 13. Responsive */
@media (max-width: 992px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
    .hero-content { align-items: center; }
    .hero-buttons { justify-content: center; }
    .hero-metrics { justify-content: center; }
    .hero-logo-wrapper { justify-content: center; }
    .simulator-layout, .roi-calculator-layout, .contact-layout { grid-template-columns: 1fr; gap: 2rem; }
    .hardware-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-col-contact { grid-column: span 2; }
    .section-header { padding: 0 1rem; }
}

@media (max-width: 768px) {
    /* Header — reduce blur for mobile GPU perf */
    .main-header {
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }
    .nav-menu { display: none; }
    .mobile-menu-toggle { display: flex; }
    #btn-header-audit { display: none; }
    .header-container { height: 4rem; }
    .logo-img { height: 3rem; }
    .logo-text { font-size: 1.2rem; }

    /* Disable body radial gradients on mobile for GPU savings */
    body {
        background-image: none;
    }

    /* Hero */
    .hero-section { padding: 2.5rem 0 2rem; }
    .hero-brand-logo { height: 6rem; animation-duration: 6s; }
    .hero-subtitle { font-size: 0.95rem; }
    .hero-metrics { flex-direction: column; gap: 1rem; align-items: center; }
    .hero-visual { padding: 1.5rem 1rem; }

    /* Sections */
    .section-desc { font-size: 0.95rem; }
    .section-header { margin-bottom: 2rem; }

    /* Services — horizontal scroll-snap on mobile */
    .services-grid {
        grid-template-columns: none;
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: 1rem;
        padding-bottom: 1rem;
        scrollbar-width: none;
    }
    .services-grid::-webkit-scrollbar { display: none; }
    .services-grid .service-card {
        min-width: 85vw;
        max-width: 85vw;
        scroll-snap-align: center;
        flex-shrink: 0;
    }

    /* Hardware */
    .hardware-grid { grid-template-columns: 1fr; }
    .hardware-card { padding: 1.5rem 1.2rem 1.2rem; }
    .hardware-cta { padding: 1.5rem 1rem; }
    .hardware-cta p { font-size: 1rem; }
    .brands-marquee { padding: 1rem 0; }

    /* Forms & Results */
    .form-grid, .results-grid { grid-template-columns: 1fr; }

    /* Contact */
    .contact-form-panel { padding: 1.5rem; }
    .contact-info-panel h2 { font-size: 1.6rem; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-col-contact { grid-column: span 1; }

    /* Toast */
    .toast-container { right: 1rem; left: 1rem; bottom: 1rem; }
    .toast { min-width: auto; max-width: none; }

    /* Dialogs — reduce backdrop blur for mobile GPU perf */
    .service-dialog, .mobile-drawer { width: 95%; }
    .dialog-content { padding: 1.5rem; }
    .dialog-header h3 { font-size: 1.1rem; }
    .service-dialog[open]::backdrop,
    .mobile-drawer[open]::backdrop {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    /* Mobile drawer — wider on small screens */
    .mobile-drawer {
        width: min(300px, 85vw);
    }

    /* Touch targets */
    .theme-toggle, .mobile-menu-toggle {
        width: 2.75rem;
        height: 2.75rem;
    }
    .lang-toggle {
        min-height: 2.75rem;
        padding: 0.5rem 0.9rem;
    }
    .service-link-btn {
        min-height: 44px;
        padding: 0.5rem 0;
    }
}

@media (max-width: 480px) {
    .container { padding: 0 0.85rem; }
    .hero-brand-logo { height: 5rem; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; }
    .metric-num { font-size: 1.5rem; }
    .btn-lg { padding: 0.85rem 1.5rem; font-size: 0.95rem; }
    .stats-grid { grid-template-columns: 1fr; }
    .glass-server-card { padding: 1rem; }
    .hardware-card-title { font-size: 1rem; }
    .newsletter-form { flex-direction: column; }
    .newsletter-form input, .newsletter-form button { width: 100%; }
    .logo-text { display: none; }

    /* Service cards even smaller */
    .services-grid .service-card {
        min-width: 90vw;
        max-width: 90vw;
    }

    /* Simulator compact */
    .simulator-card { padding: 1.25rem; }
    .simulator-card .card-title { font-size: 1.1rem; }

    /* ROI compact */
    .roi-inputs, .roi-results { padding: 1.2rem; }
    .saving-num { font-size: 1.8rem; }
}

@media (max-width: 360px) {
    .container { padding: 0 0.65rem; }
    .hero-brand-logo { height: 4rem; }
    .hero-section { padding: 2rem 0 1.5rem; }
    .badge { font-size: 0.75rem; padding: 0.3rem 0.6rem; }
}

/* ========== LTR Support (English Mode) ========== */
html[dir="ltr"] {
    text-align: left;
}
html[dir="ltr"] .nav-menu ul,
html[dir="ltr"] .drawer-nav ul { direction: ltr; }
html[dir="ltr"] .hero-content { text-align: left; }
html[dir="ltr"] .hero-logo-wrapper { justify-content: flex-start; }
html[dir="ltr"] .section-header { text-align: left; }
html[dir="ltr"] .section-header.text-center { text-align: center; }
html[dir="ltr"] .contact-info-panel { text-align: left; }
html[dir="ltr"] .newsletter-form button .lucide { transform: rotate(180deg); }
html[dir="ltr"] .footer-bottom { text-align: center; }

/* Smooth language transition */
* { transition: direction 0s, text-align 0s; }

/* ========== Transitions for Language Switch ========== */
[data-i18n], [data-i18n-html] {
    transition: opacity 0.2s ease;
}
.i18n-switching [data-i18n],
.i18n-switching [data-i18n-html] {
    opacity: 0;
}
/* ==========================================================================
   Mobile Fixes (حل مشاكل الموبايل والمساحات الواسعة) - تم إصلاح التاتش
   ========================================================================== */
@media (max-width: 768px) {
    /* منع الشاشة من التحرك يمين وشمال بطريقة آمنة بدون تعطيل السكرول أو التاتش */
    html, body {
        overflow-x: hidden !important;
        max-width: 100%;
    }

    /* الحفاظ على أداء الموبايل وإلغاء المساحات الوهمية */
    .services-section, 
    .hardware-section, 
    .simulator-section, 
    .marketing-section, 
    .contact-section {
        content-visibility: visible !important;
        contain-intrinsic-size: auto !important;
    }

    /* تخفيف تأثيرات الجرافيك لضمان سرعة الاستجابة */
    .glass-server-card {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background-color: var(--bg-tertiary) !important;
    }

    .hero-brand-logo {
        filter: drop-shadow(0 0 10px rgba(223, 183, 108, 0.4)) !important;
        animation: none !important;
    }

    .brands-track {
        will-change: auto !important;
    }
    
    /* إخفاء تأثير الضبابية للنوافذ بالكامل لتسريع التاتش على الموبايل */
    .service-dialog[open]::backdrop, 
    .mobile-drawer[open]::backdrop,
    #audit-popover[open]::backdrop {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background-color: rgba(9, 11, 20, 0.8) !important;
    }
}

/* --------------------------------------------------------
   إغلاق قاطع لأي نافذة مخفية عشان متسرقش لمسات الشاشة (Touch Traps)
   -------------------------------------------------------- */
dialog:not([open]), .mobile-drawer:not([open]), #audit-popover:not([open]) {
    display: none !important;
    pointer-events: none !important;
    visibility: hidden !important;
}

/* تحسين حركة السكرول داخل النوافذ المنبثقة */
.dialog-content, .mobile-drawer {
    max-height: 85vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* ضروري جداً للأيفون */
    overscroll-behavior: contain;
}

/* ==========================================================================
   Chatbot Widget Styles
   ========================================================================== */
.chatbot-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    font-family: var(--font-primary);
}
html[dir="ltr"] .chatbot-container {
    right: auto;
    left: 2rem;
}
.chat-floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--bg-primary);
    border: none;
    box-shadow: 0 4px 15px rgba(223, 183, 108, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.chat-floating-btn i {
    width: 28px;
    height: 28px;
}
.chat-floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(223, 183, 108, 0.6);
}
.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    max-height: 70vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-premium);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    transform-origin: bottom right;
    transform: scale(1);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
html[dir="ltr"] .chat-window {
    right: auto;
    left: 0;
    transform-origin: bottom left;
}
.chat-window.hidden {
    opacity: 0;
    transform: scale(0.9);
    visibility: hidden;
    pointer-events: none;
}
.chat-header {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.chat-bot-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    color: var(--bg-primary);
    border-radius: 50%;
    padding: 6px;
}
.chat-header h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-primary);
}
.chat-status {
    font-size: 0.75rem;
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.chat-status::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
}
.chat-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}
.chat-close-btn:hover {
    color: var(--danger-color);
}
.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.chat-message {
    max-width: 85%;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}
.bot-message {
    align-self: flex-start;
}
.user-message {
    align-self: flex-end;
}
.message-content {
    padding: 0.8rem 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
}
.bot-message .message-content {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-bottom-right-radius: 4px;
}
html[dir="ltr"] .bot-message .message-content {
    border-bottom-right-radius: 12px;
    border-bottom-left-radius: 4px;
}
.user-message .message-content {
    background: var(--primary-color);
    color: var(--bg-primary);
    border-bottom-left-radius: 4px;
}
html[dir="ltr"] .user-message .message-content {
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 4px;
}
.chat-input-area {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}
.chat-input-area input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 20px;
    font-family: inherit;
}
.chat-input-area input:focus {
    outline: none;
    border-color: var(--primary-color);
}
.chat-input-area button {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--bg-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}
.chat-input-area button:hover {
    transform: scale(1.05);
}
.chat-input-area button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.8rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 12px;
    align-self: flex-start;
    border-bottom-right-radius: 4px;
}
html[dir="ltr"] .typing-indicator {
    border-bottom-right-radius: 12px;
    border-bottom-left-radius: 4px;
}
.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}
.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}
@media (max-width: 480px) {
    .chatbot-container { bottom: 1rem; right: 1rem; }
    html[dir="ltr"] .chatbot-container { left: 1rem; }
    .chat-window { width: calc(100vw - 2rem); position: fixed; bottom: 80px; right: 1rem; }
    html[dir="ltr"] .chat-window { left: 1rem; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}