/* ===== Global Styles ===== */
:root {
    /* Colors */
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #48bb78;
    --warning: #ed8936;
    --danger: #f56565;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    --gradient-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-orange: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-purple: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    
    /* Hero Background Gradient */
    --hero-gradient: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: #2d3748;
    background: #f7fafc;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.logo {
    font-size: 1.5rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.1);
}

.nav-link.cta-button {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

.nav-link.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--hero-gradient);
    z-index: -1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a5568;
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2rem;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.75rem;
    color: #718096;
}

/* ===== Hero Visual - Robot & Floating Badges ===== */
.hero-visual {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.robot-icon {
    position: absolute;
    z-index: 2;
    animation: float 3s ease-in-out infinite;
}

.robot-icon svg {
    filter: drop-shadow(0 20px 40px rgba(102, 126, 234, 0.3));
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.875rem;
    animation: float-badge var(--duration) ease-in-out infinite;
    animation-delay: var(--delay);
    transition: var(--transition-base);
    z-index: 1;
}

.floating-badge:hover {
    transform: scale(1.1) !important;
    z-index: 3;
}

.badge-icon {
    font-size: 1.5rem;
}

.badge-text {
    white-space: nowrap;
}

/* Badge Positioning - Orbiting around robot */
.badge-1 {
    top: 10%;
    left: 15%;
    background: linear-gradient(135deg, #fbc2eb 0%, #a6c1ee 100%);
    color: white;
}

.badge-2 {
    top: 15%;
    right: 10%;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    color: #4a5568;
}

.badge-3 {
    top: 40%;
    left: 5%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.badge-4 {
    top: 45%;
    right: 5%;
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    color: #4a5568;
}

.badge-5 {
    bottom: 20%;
    left: 10%;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #4a5568;
}

.badge-6 {
    bottom: 25%;
    right: 15%;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: white;
}

.badge-7 {
    top: 65%;
    left: 25%;
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    color: white;
}

.badge-8 {
    top: 70%;
    right: 25%;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #4a5568;
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes float-badge {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

/* ===== Section Styles ===== */
section {
    padding: var(--spacing-2xl) 0;
}

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

.section-tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #2d3748;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== About Section ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.about-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    color: #4a5568;
    line-height: 1.8;
}

.highlight-card {
    background: var(--gradient-primary);
    color: white;
}

.highlight-card h3,
.highlight-card p {
    color: white;
}

/* Course Details */
.course-details {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.course-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-lg);
}

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

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: #f7fafc;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
}

.detail-item strong {
    color: var(--primary);
    font-weight: 600;
}

.detail-item span {
    color: #4a5568;
}

/* ===== Modules Section ===== */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.module-card {
    position: relative;
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
}

.module-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.module-1::before { background: var(--gradient-primary); }
.module-2::before { background: var(--gradient-secondary); }
.module-3::before { background: var(--gradient-blue); }
.module-4::before { background: var(--gradient-success); }
.module-5::before { background: var(--gradient-orange); }
.module-6::before { background: var(--gradient-purple); }
.module-7::before { background: linear-gradient(135deg, #667eea 0%, #f093fb 100%); }

.module-number {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 3rem;
    font-weight: 900;
    color: rgba(102, 126, 234, 0.1);
}

.module-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.module-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-sm);
}

.module-description {
    color: #4a5568;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.module-topics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.topic-tag {
    background: #edf2f7;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.module-sessions {
    color: #718096;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===== Sessions Section ===== */
.sessions-section {
    background: #f7fafc;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid #e2e8f0;
    background: white;
    color: #4a5568;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.session-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition-base);
    border-left: 4px solid var(--primary);
}

.session-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.session-card.hidden {
    display: none;
}

.session-number {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.session-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-xs);
}

.session-description {
    color: #718096;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.session-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.session-topics .topic-tag {
    font-size: 0.7rem;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: white;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: #f7fafc;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 1;
}

.modal-close:hover {
    background: #e2e8f0;
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #2d3748;
    margin-bottom: var(--spacing-sm);
}

.modal-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.modal-meta span {
    background: #edf2f7;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-sm);
}

.modal-section ul {
    list-style: none;
    padding-left: 0;
}

.modal-section li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: #4a5568;
}

.modal-section li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

/* ===== Tools Section ===== */
.tools-table-wrapper {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.tools-table {
    width: 100%;
    border-collapse: collapse;
}

.tools-table thead {
    background: var(--gradient-primary);
    color: white;
}

.tools-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
}

.tools-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid #e2e8f0;
}

.tools-table tbody tr:hover {
    background: #f7fafc;
}

.badge-yes {
    background: var(--gradient-success);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.tools-note {
    background: #fff5f5;
    border-left: 4px solid var(--warning);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.tools-note p {
    color: #4a5568;
    line-height: 1.8;
}

/* ===== FAQ Section ===== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: #2d3748;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-base);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    transition: var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: #4a5568;
    line-height: 1.8;
}

.faq-answer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form-wrapper {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: #2d3748;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.info-card.highlight {
    background: var(--gradient-primary);
    color: white;
}

.info-card.highlight h3,
.info-card.highlight p {
    color: white;
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.info-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: var(--spacing-xs);
}

.info-card p {
    color: #4a5568;
    line-height: 1.8;
}

.info-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.info-card a:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    background: #2d3748;
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: #cbd5e0;
    margin-bottom: var(--spacing-md);
}

.footer-badge {
    display: inline-block;
    background: var(--gradient-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.footer-links h4 {
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: #cbd5e0;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid #4a5568;
    color: #cbd5e0;
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        height: 500px;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .floating-badge {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .tools-table-wrapper {
        overflow-x: auto;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    
    .filter-buttons {
        gap: var(--spacing-xs);
    }
    
    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.875rem;
    }
}