/* ============================================
   LED vs Signage - ULTRA Premium Style Sheet
   Cool Blue Theme + Impact Design
   ============================================ */

/* ============================================
   01. CSS Variables & Reset
   ============================================ */
:root {
    /* Colors - Cool Blue Theme */
    --color-primary: #0a1929;
    --color-accent: #00b4d8;
    --color-accent-light: #48cae4;
    --color-accent-dark: #0077b6;
    --color-secondary: #7209b7;
    --color-text: #1a1a1a;
    --color-text-muted: #64748b;
    --color-bg-white: #ffffff;
    --color-bg-light: #f1f5f9;
    --color-bg-dark: #0a1929;
    --color-border: #cbd5e1;
    --color-border-light: rgba(0, 180, 216, 0.1);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
    --gradient-hero: linear-gradient(135deg, #023e8a 0%, #0077b6 50%, #00b4d8 100%);
    --gradient-accent: linear-gradient(135deg, #7209b7 0%, #00b4d8 100%);
    --gradient-glow: radial-gradient(circle, rgba(0, 180, 216, 0.3), transparent 70%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 10rem;

    /* Typography */
    --font-family: 'Noto Sans JP', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    /* Layout */
    --container-max-width: 1400px;
    --container-padding: 3rem;
    --border-radius: 16px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(0, 180, 216, 0.3);
    --shadow-hover: 0 20px 60px rgba(0, 180, 216, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg-white);
    color: var(--color-text);
    line-height: 1.8;
    font-weight: var(--font-weight-regular);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   02. Layout & Container
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

/* ============================================
   03. Header - Glassmorphism Style
   ============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-smooth);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

header.hidden {
    transform: translateY(-100%);
}

header .container {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 a {
    font-size: 1.8rem;
    font-weight: var(--font-weight-black);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--transition-base);
}

header h1 a:hover {
    transform: scale(1.05);
}

header nav ul {
    display: flex;
    gap: 3rem;
    list-style: none;
}

header nav a {
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
    position: relative;
    transition: color var(--transition-base);
}

header nav a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    border-radius: 2px;
}

header nav a:hover {
    color: var(--color-accent);
}

header nav a:hover::after {
    width: 100%;
}

/* ============================================
   04. Mobile Menu
   ============================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--gradient-primary);
    transition: all var(--transition-base);
    transform-origin: center;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   05. Hero Section - ULTRA IMPACT
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    padding: 8rem 0;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

/* Animated Background Particles */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(114, 9, 183, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(72, 202, 228, 0.1) 0%, transparent 50%);
    animation: particleFloat 20s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.hero-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: white;
    margin-bottom: 2rem;
    padding: 0.8rem 2rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    animation: labelPulse 3s ease-in-out infinite;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

@keyframes labelPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 8px 32px rgba(0, 180, 216, 0.3);
    }
}

.hero-title {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: var(--font-weight-black);
    line-height: 1;
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-title span {
    display: block;
    animation: heroSlideIn 1s ease-out both;
}

.hero-title span:nth-child(1) {
    animation-delay: 0.2s;
}

.hero-title span.accent {
    background: linear-gradient(135deg, #48cae4 0%, #00b4d8 50%, #7209b7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: heroSlideIn 1s ease-out 0.4s both, gradientShift 5s ease infinite;
}

@keyframes heroSlideIn {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0%, 100% {
        filter: hue-rotate(0deg);
    }
    50% {
        filter: hue-rotate(20deg);
    }
}

.hero-description {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.95);
    max-width: 700px;
    margin: 0 auto 4rem;
    line-height: 2;
    font-weight: var(--font-weight-light);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: fadeIn 1s ease-out 0.8s both;
}

/* ============================================
   06. Section Styles
   ============================================ */
.section-label {
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: inline-block;
    animation: labelSlide 0.8s ease-out;
}

@keyframes labelSlide {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: var(--font-weight-black);
    line-height: 1.2;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    max-width: 800px;
    margin-bottom: 6rem;
    line-height: 2;
    font-weight: var(--font-weight-light);
}

/* ============================================
   07. Comparison Section
   ============================================ */
.comparison-section {
    background: var(--color-bg-light);
    position: relative;
    overflow: hidden;
}

.comparison-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--gradient-glow);
    border-radius: 50%;
    animation: floatGlow 15s ease-in-out infinite;
}

@keyframes floatGlow {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-50px, 50px);
    }
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.comparison-card {
    background: var(--color-bg-white);
    padding: 4rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--color-border);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.comparison-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.comparison-card:hover::before {
    transform: scaleX(1);
}

.comparison-card.led-card {
    border: 3px solid var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.comparison-card.led-card::before {
    background: var(--gradient-primary);
}

.comparison-card.led-card:hover {
    transform: translateY(-20px) scale(1.03) rotate(1deg);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
    color: var(--color-text-muted);
    transition: all var(--transition-bounce);
}

.comparison-card:hover .card-icon {
    transform: scale(1.2) rotate(10deg);
}

.led-card .card-icon {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-title {
    font-size: 2.2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1.5rem;
}

.card-features {
    list-style: none;
    padding: 0;
}

.card-features li {
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-base);
}

.card-features li:last-child {
    border-bottom: none;
}

.card-features li:hover {
    transform: translateX(10px);
    padding-left: 10px;
}

.card-features i {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.traditional-card .card-features i {
    color: #ccc;
}

.led-card .card-features i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   08. Benefits Section
   ============================================ */
.benefits-section {
    background: var(--color-bg-white);
    position: relative;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

.benefit-card {
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    background: var(--color-bg-light);
    border-bottom: 4px solid var(--color-border);
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 4px;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
}

.benefit-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.benefit-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-hover);
    background: white;
}

.benefit-card:hover::before {
    width: 100%;
}

.benefit-card:hover::after {
    opacity: 1;
}

.benefit-number {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

.benefit-title {
    font-size: 1.4rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    line-height: 1.4;
    transition: color var(--transition-base);
    position: relative;
    z-index: 1;
}

.benefit-card:hover .benefit-title {
    color: var(--color-accent);
}

.benefit-description {
    color: var(--color-text-muted);
    line-height: 1.9;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* ============================================
   09. ROI Section
   ============================================ */
.roi-section {
    background: var(--color-bg-dark);
    color: white;
    position: relative;
    overflow: hidden;
}

.roi-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(114, 9, 183, 0.1) 0%, transparent 50%);
    animation: particleFloat 20s ease-in-out infinite reverse;
}

.roi-section .section-label {
    background: linear-gradient(135deg, #48cae4 0%, white 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.roi-section .section-title {
    color: white;
}

.roi-section .section-description {
    color: rgba(255, 255, 255, 0.8);
}

.roi-comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    margin-top: 4rem;
    position: relative;
    z-index: 10;
}

.roi-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 4rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: all var(--transition-bounce);
    position: relative;
}

.roi-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.roi-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 180, 216, 0.5);
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 180, 216, 0.3);
}

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

.roi-card-title {
    font-size: 2.2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.roi-items {
    list-style: none;
    padding: 0;
}

.roi-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.roi-item:hover {
    padding-left: 10px;
    border-bottom-color: rgba(0, 180, 216, 0.3);
}

.roi-item:last-child {
    border-bottom: none;
    font-size: 1.8rem;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding-top: 2rem;
    margin-top: 1rem;
}

.roi-item-label {
    color: rgba(255, 255, 255, 0.7);
}

.roi-item-value {
    font-weight: var(--font-weight-bold);
    color: white;
}

/* ============================================
   10. Revenue Section
   ============================================ */
.revenue-section {
    background: var(--color-bg-light);
    text-align: center;
    position: relative;
}

.revenue-highlight {
    max-width: 900px;
    margin: 4rem auto 0;
    padding: 5rem;
    background: var(--color-bg-white);
    border: 3px solid var(--color-accent);
    border-radius: var(--border-radius);
    position: relative;
    transition: all var(--transition-bounce);
    box-shadow: var(--shadow-glow);
}

.revenue-highlight::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    border: 3px solid var(--color-accent-light);
    border-radius: var(--border-radius);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.revenue-highlight:hover {
    transform: scale(1.03);
}

.revenue-highlight:hover::before {
    opacity: 0.5;
}

.revenue-highlight h3 {
    font-size: 2.8rem;
    font-weight: var(--font-weight-black);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.revenue-highlight p {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--color-text-muted);
}

.revenue-highlight strong {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.4em;
    font-weight: var(--font-weight-black);
}

/* ============================================
   11. CTA Section - ULTRA IMPACT
   ============================================ */
.cta-section {
    background: var(--gradient-hero);
    color: white;
    text-align: center;
    padding: 10rem 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

.cta-section h2 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-black);
    margin-bottom: 2rem;
    line-height: 1.3;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.cta-section p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 2;
    position: relative;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.cta-button {
    padding: 1.5rem 3.5rem;
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    transition: all var(--transition-bounce);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    position: relative;
    overflow: hidden;
    border-radius: 50px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.cta-button:hover::before {
    width: 400px;
    height: 400px;
}

.cta-button span,
.cta-button i {
    position: relative;
    z-index: 1;
}

.cta-button.primary {
    background: white;
    color: var(--color-accent);
    border: 3px solid white;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.cta-button.primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 3px solid white;
}

.cta-button.secondary:hover {
    background: white;
    color: var(--color-accent);
    transform: translateY(-5px) scale(1.05);
}

/* ============================================
   12. Footer
   ============================================ */
footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 6rem 0 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-info h3 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: var(--font-weight-bold);
}

.footer-info p {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.footer-links h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    font-weight: var(--font-weight-bold);
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
    display: inline-block;
}

.copyright {
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    transition: all var(--transition-bounce);
}

.social-links a:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-5px) rotate(10deg) scale(1.1);
    box-shadow: var(--shadow-glow);
}

.contact-info {
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.contact-item:hover {
    transform: translateX(5px);
}

.contact-item a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.contact-item a:hover {
    color: var(--color-accent);
}

/* ============================================
   13. Scroll Progress Bar
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 9999;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(0, 180, 216, 0.5);
}

/* ============================================
   14. ULTRA Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(100px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(100px);
    }
    50% {
        transform: scale(1.05) translateY(-10px);
    }
    70% {
        transform: scale(0.9) translateY(5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
    animation: bounceIn 0.8s ease-out;
}

/* ============================================
   15. Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --container-padding: 2rem;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .comparison-grid,
    .roi-comparison {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-2xl: 5rem;
    }

    header .container {
        padding: 1.5rem;
    }

    header nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--color-border-light);
        padding: 2rem 1.5rem;
        box-shadow: var(--shadow-lg);
    }

    header nav.active {
        display: block !important;
    }

    header nav ul {
        flex-direction: column;
        gap: 0;
    }

    header nav li {
        border-bottom: 1px solid var(--color-border-light);
    }

    header nav li:last-child {
        border-bottom: none;
    }

    header nav a {
        display: block;
        padding: 1rem 0;
        font-size: 1rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    section {
        padding: 5rem 0;
    }

    .hero-section {
        padding: 5rem 0;
        min-height: 80vh;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .comparison-card,
    .roi-card,
    .revenue-highlight {
        padding: 2.5rem 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-button {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .benefit-card {
        padding: 2rem 1.5rem;
    }
}

/* ============================================
   16. Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}