:root {
    --bg-dark: #050a08;
    --bg-surface: #0a1410;
    --bg-surface-elevated: #10201a;
    --bg-card: rgba(14, 28, 22, 0.65);
    --border-glow: rgba(34, 197, 94, 0.35);
    --border-subtle: rgba(255, 255, 255, 0.08);
    
    --primary: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.55);
    --primary-light: #34d399;
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.5);
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-blue: #3b82f6;

    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --text-sub: #6b7280;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Space Mono', monospace;

    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-full: 9999px;

    --container-max: 1240px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-spring: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.65;
    overflow-x: hidden;
    position: relative;
    background-image: 
        radial-gradient(circle at 20% 15%, rgba(16, 185, 129, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 80% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 45%),
        radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Custom Selection */
::selection {
    background: rgba(16, 185, 129, 0.35);
    color: #ffffff;
}

/* Interactive Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.85;
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.025em;
}

.gradient-text {
    background: linear-gradient(135deg, #34d399 0%, #06b6d4 50%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: gradientShift 6s linear infinite;
}

.gradient-text-gold {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Header & Glass Nav */
.header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

.header-nav.scrolled {
    padding: 12px 0;
    background: rgba(5, 10, 8, 0.82);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo-brand:hover {
    transform: scale(1.03);
}

.logo-icon-box {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 25px var(--primary-glow);
    animation: pulseIcon 4s ease-in-out infinite;
}

.logo-icon-box svg {
    width: 26px;
    height: 26px;
    fill: #ffffff;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary);
    text-shadow: 0 0 12px var(--primary-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    border-radius: 2px;
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
    box-shadow: 0 0 10px var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-select-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-main);
    padding: 9px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.lang-select-btn:hover {
    border-color: var(--primary);
    background: rgba(16, 185, 129, 0.15);
    box-shadow: 0 0 18px rgba(16, 185, 129, 0.3);
    transform: translateY(-2px);
}

/* Premium Buttons */
.btn-primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    padding: 13px 26px;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 25px var(--primary-glow);
    transition: var(--transition-spring);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: 0.6s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 35px rgba(16, 185, 129, 0.7);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.03);
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    padding: 13px 26px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(12px);
    transition: var(--transition-spring);
}

.btn-outline:hover {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.15);
    box-shadow: 0 0 25px rgba(6, 182, 212, 0.4);
    transform: translateY(-3px) scale(1.02);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    padding-top: 150px;
    padding-bottom: 90px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--border-glow);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.hero-badge .pulse-dot {
    width: 9px;
    height: 9px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--primary);
    animation: pulseGlow 2s infinite;
}

.hero-title {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 36px;
    max-width: 580px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats-row {
    display: flex;
    align-items: center;
    gap: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border-subtle);
}

.stat-item h4 {
    font-size: 32px;
    color: #ffffff;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, #fff, #a7f3d0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item p {
    font-size: 13px;
    color: var(--text-sub);
}

/* 3D Glass Floating Hardware Telemetry Visual */
.hero-visual-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.hero-visual-card {
    width: 100%;
    max-width: 450px;
    background: linear-gradient(160deg, rgba(16, 32, 26, 0.75) 0%, rgba(8, 16, 13, 0.92) 100%);
    border: 1px solid rgba(34, 197, 94, 0.4);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.7), 0 0 50px rgba(16, 185, 129, 0.2);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    position: relative;
    animation: float3D 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

.hero-visual-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.5), transparent, rgba(6, 182, 212, 0.4));
    z-index: -1;
    pointer-events: none;
}

.hero-telemetry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.device-id-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--primary-light);
    background: rgba(16, 185, 129, 0.12);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(16, 185, 129, 0.25);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

.live-signal-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #34d399;
    font-weight: 600;
}

.voltage-bars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.voltage-phase-box {
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 14px 10px;
    text-align: center;
    transition: var(--transition-smooth);
}

.voltage-phase-box:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.2);
}

.voltage-phase-box .phase-name {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-sub);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.voltage-phase-box .phase-val {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin: 5px 0;
    text-shadow: 0 0 10px rgba(255,255,255,0.2);
}

.voltage-phase-box.phase-r { border-top: 3px solid #ef4444; }
.voltage-phase-box.phase-y { border-top: 3px solid #f59e0b; }
.voltage-phase-box.phase-b { border-top: 3px solid #3b82f6; }

.pump-status-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.35);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.1);
}

.pump-status-info h5 {
    font-size: 16px;
    margin-bottom: 2px;
}

.pump-status-info p {
    font-size: 12px;
    color: var(--primary-light);
}

.pump-switch-pill {
    background: var(--primary);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 0 18px var(--primary);
}

/* Feature Grid Section */
.features-section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 42px;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: var(--transition-spring);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(14px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-glow);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 35px rgba(16, 185, 129, 0.15);
}

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

.feature-icon-box {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid var(--border-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 24px;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon-box {
    transform: scale(1.1) rotate(5deg);
    background: rgba(16, 185, 129, 0.2);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
}

.feature-card h3 {
    font-size: 21px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Live Interactive Simulator Section */
.simulator-section {
    padding: 120px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 20, 16, 0.7) 50%, transparent 100%);
    position: relative;
}

.simulator-card-wrapper {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.8), 0 0 50px rgba(16, 185, 129, 0.1);
    backdrop-filter: blur(20px);
}

.simulator-controls {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.sim-button-group {
    display: flex;
    gap: 18px;
}

.sim-btn-start {
    flex: 1;
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    padding: 18px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 6px 25px var(--primary-glow);
    transition: var(--transition-spring);
}

.sim-btn-start:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(16, 185, 129, 0.7);
}

.sim-btn-stop {
    flex: 1;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #fff;
    padding: 18px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 6px 25px rgba(239, 68, 68, 0.4);
    transition: var(--transition-spring);
}

.sim-btn-stop:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(239, 68, 68, 0.6);
}

.sim-btn-dryrun {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.4);
    padding: 14px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sim-btn-dryrun:hover {
    background: rgba(245, 158, 11, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

/* 3D Smartphone Device Mockup in Simulator */
.phone-mockup {
    width: 310px;
    height: 590px;
    background: #000;
    border: 5px solid #2a3a34;
    border-radius: 40px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 60px rgba(0,0,0,0.9), 0 0 40px rgba(16, 185, 129, 0.25);
    transform: perspective(800px) rotateY(-4deg);
    transition: var(--transition-smooth);
}

.phone-mockup:hover {
    transform: perspective(800px) rotateY(0deg) scale(1.02);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #050a08;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sim-notif-toast {
    background: rgba(16, 32, 26, 0.95);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    padding: 14px;
    font-size: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    animation: slideDown 0.4s ease;
}

/* Hardware Products Section */
.products-section {
    padding: 120px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    position: relative;
    backdrop-filter: blur(14px);
    transition: var(--transition-spring);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card.featured {
    border-color: var(--primary);
    background: linear-gradient(170deg, rgba(16, 36, 28, 0.8) 0%, rgba(10, 20, 16, 0.9) 100%);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(16, 185, 129, 0.25);
    transform: scale(1.03);
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--border-glow);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 35px rgba(16, 185, 129, 0.2);
}

.product-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #000;
    font-size: 11px;
    font-weight: 800;
    padding: 5px 16px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.5);
}

.product-title {
    font-size: 24px;
    margin-bottom: 8px;
}

.product-price-tag {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-light);
    margin: 16px 0;
    font-family: var(--font-heading);
}

.product-spec-list {
    list-style: none;
    margin: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.product-spec-list li {
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ROI Savings Calculator */
.roi-section {
    padding: 120px 0;
    background: var(--bg-surface);
}

.calc-box {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 56px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 56px;
    align-items: center;
    box-shadow: 0 25px 70px rgba(0,0,0,0.6);
    backdrop-filter: blur(14px);
}

.calc-slider-group {
    margin-bottom: 30px;
}

.calc-label-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 15px;
    font-weight: 600;
}

.range-slider {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    outline: none;
    accent-color: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

.savings-result-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.18) 0%, rgba(6, 182, 212, 0.18) 100%);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    padding: 36px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0,0,0,0.4), 0 0 30px rgba(16, 185, 129, 0.2);
}

.savings-number {
    font-size: 46px;
    font-weight: 800;
    color: #34d399;
    font-family: var(--font-heading);
    margin: 14px 0;
    text-shadow: 0 0 25px rgba(52, 211, 153, 0.4);
}

/* Footer */
.footer {
    background: #030605;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 90px 0 35px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-sub);
    font-size: 14px;
    margin-top: 16px;
    max-width: 320px;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 16px;
    margin-bottom: 22px;
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-sub);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(4px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 13px;
    color: var(--text-sub);
}

/* Keyframe Animations */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 1; filter: drop-shadow(0 0 4px var(--primary)); }
    50% { transform: scale(1.4); opacity: 0.6; filter: drop-shadow(0 0 12px var(--primary)); }
}

@keyframes pulseIcon {
    0%, 100% { box-shadow: 0 0 20px var(--primary-glow); }
    50% { box-shadow: 0 0 35px var(--accent-cyan-glow); }
}

@keyframes float3D {
    0%, 100% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); }
    50% { transform: translateY(-14px) rotateX(2deg) rotateY(-2deg); }
}

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

/* Scroll Reveal Animations */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual-container { margin-top: 40px; }
    .features-grid, .products-grid { grid-template-columns: repeat(2, 1fr); }
    .calc-box { grid-template-columns: 1fr; }
    .simulator-card-wrapper { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-title { font-size: 38px; }
    .hero-section { padding-top: 120px; }
    .features-grid, .products-grid { grid-template-columns: 1fr; }
    .calc-box { padding: 30px 20px; }
    .simulator-card-wrapper { padding: 30px 20px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
    .phone-mockup { transform: none; width: 100%; max-width: 300px; height: 550px; }
}