/* ===================================
   CSS Variables & Root Styles
   =================================== */
:root {
    /* Brand Colors */
    --primary-color: #2edb5c;
    --secondary-color: #323b34;
    --accent-color: #25c24a;
    
    /* Light Mode Colors */
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-color: #1a1a1a;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --card-bg: #ffffff;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    /* Transitions */
    --transition-speed: 0.3s;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --bg-secondary: #242424;
    --text-color: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --card-bg: #2a2a2a;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: var(--transition-smooth);
}

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

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

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

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--shadow-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
    animation: rotate 4s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    position: relative;
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-speed);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 30px;
    height: 30px;
}

.mobile-toggle span {
    width: 100%;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-secondary) 100%);
}

.hero-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.3;
}

#particleCanvas {
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(46, 219, 92, 0.3);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-white {
    background: white;
    color: var(--primary-color);
}

.btn-white:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.btn-success {
    background: var(--primary-color);
    color: white;
}

.btn-success:hover {
    background: var(--accent-color);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* ===================================
   Sections
   =================================== */
.content-section,
.features-section,
.use-cases-section,
.how-it-works-section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ===================================
   Content Cards
   =================================== */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.content-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
}

.content-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px var(--shadow-color);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.content-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.content-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================
   Features Grid
   =================================== */
.features-section {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin: 0 auto var(--spacing-md);
    transition: var(--transition-smooth);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 30px rgba(46, 219, 92, 0.4);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--text-secondary);
}

/* ===================================
   Use Cases
   =================================== */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.use-case-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: var(--transition-smooth);
    border-left: 4px solid var(--primary-color);
}

.use-case-card:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.use-case-image {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.use-case-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
}

.use-case-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================
   How It Works
   =================================== */
.how-it-works-section {
    background: var(--bg-secondary);
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    flex-wrap: wrap;
}

.step-item {
    flex: 1;
    min-width: 250px;
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0 auto var(--spacing-md);
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    color: var(--text-secondary);
}

.cta-center {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

/* ===================================
   Tool Section
   =================================== */
.tool-section {
    padding: var(--spacing-xl) 0;
    min-height: 100vh;
}

.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.tool-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.tool-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.tool-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.tool-input-section,
.tool-output-section {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.input-group input[type="text"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition-smooth);
}

.input-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 219, 92, 0.1);
}

.input-hint {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.control-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.control-group select,
.control-group input[type="color"],
.control-group input[type="range"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition-smooth);
}

.control-group input[type="color"] {
    height: 50px;
    cursor: pointer;
}

.control-group input[type="range"] {
    cursor: pointer;
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.action-buttons .btn {
    flex: 1;
}

.canvas-container {
    position: relative;
    width: 100%;
    min-height: 400px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

#ambigramCanvas {
    max-width: 100%;
    max-height: 400px;
    display: none;
}

.placeholder-content {
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-content i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.placeholder-content p {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.placeholder-content span {
    font-size: 0.9rem;
}

.rotation-indicator {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(46, 219, 92, 0.9);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    display: none;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.output-actions {
    display: flex;
    gap: var(--spacing-md);
}

.output-actions .btn {
    flex: 1;
}

.tool-info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.info-card {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    border-left: 4px solid var(--primary-color);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.info-card ul {
    list-style: none;
    padding-left: 0;
}

.info-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

/* ===================================
   Page Header (for static pages)
   =================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* ===================================
   About Page
   =================================== */
.about-section {
    padding: var(--spacing-xl) 0;
}

.about-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.about-intro h2 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.about-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.mv-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    text-align: center;
}

.mv-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin: 0 auto var(--spacing-md);
}

.mv-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.mv-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.values-section {
    margin: var(--spacing-xl) 0;
}

.values-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: var(--spacing-lg);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.value-item {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    text-align: center;
    transition: var(--transition-smooth);
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin: 0 auto var(--spacing-md);
}

.value-item h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.why-choose-us {
    margin: var(--spacing-xl) 0;
}

.why-choose-us h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: var(--spacing-lg);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.reason-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    border-top: 4px solid var(--primary-color);
}

.reason-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: var(--spacing-sm);
}

.reason-card h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.reason-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.team-section,
.commitment-section {
    margin: var(--spacing-xl) 0;
    text-align: center;
}

.team-section h2,
.commitment-section h2 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-md);
}

.team-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.commitment-content {
    max-width: 800px;
    margin: var(--spacing-lg) auto;
    text-align: left;
}

.commitment-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.commitment-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.commitment-item p {
    margin: 0;
    color: var(--text-secondary);
}

.cta-section-inline {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.cta-section-inline h2 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-md);
}

.cta-section-inline p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

/* ===================================
   Contact Page
   =================================== */
.contact-section {
    padding: var(--spacing-xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form-wrapper,
.contact-info-wrapper {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.contact-form-wrapper h2,
.contact-info-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
}

.form-intro {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 219, 92, 0.1);
}

.form-message {
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.contact-info-card {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.info-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin: 0 auto var(--spacing-md);
}

.contact-info-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-info-card p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-info-card a {
    color: var(--primary-color);
    font-weight: 600;
}

.social-links-contact {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-sm);
}

.social-links-contact a {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-links-contact a:hover {
    transform: scale(1.1);
    background: var(--accent-color);
}

.response-time {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.response-time i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.faq-section {
    margin-top: var(--spacing-xl);
}

.faq-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: var(--spacing-lg);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--shadow-color);
}

.faq-item h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.faq-item i {
    color: var(--primary-color);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================
   Legal Pages
   =================================== */
.legal-section {
    padding: var(--spacing-xl) 0;
}

.legal-content {
    max-width: 900px;
    margin: 0 auto;
}

.legal-intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 8px;
}

.legal-section-block {
    margin-bottom: var(--spacing-xl);
}

.legal-section-block h2 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.legal-section-block h3 {
    font-size: 1.4rem;
    color: var(--text-color);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.legal-section-block p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.legal-section-block ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.legal-section-block li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.legal-highlight {
    background: linear-gradient(135deg, rgba(46, 219, 92, 0.1), rgba(37, 194, 74, 0.1));
    padding: var(--spacing-lg);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    margin: var(--spacing-lg) 0;
}

.legal-highlight h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.legal-highlight i {
    color: var(--primary-color);
}

.legal-highlight p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--secondary-color);
    color: #e0e0e0;
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    font-size: 1.8rem;
}

.footer-desc {
    color: #b0b0b0;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #b0b0b0;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #b0b0b0;
}

.footer-bottom i {
    color: var(--primary-color);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }

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

    .tool-container {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-color);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: var(--spacing-lg);
        transition: left var(--transition-speed);
        box-shadow: 0 10px 30px var(--shadow-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .steps-container {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: var(--spacing-md) 0;
    }

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

    .action-buttons,
    .output-actions {
        flex-direction: column;
    }

    .mission-vision {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}