/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors */
    --primary-color: #0e1c36;
    --primary-light: #1a2d4a;
    --primary-dark: #0a1529;
    --accent-color: #1fc2ff;
    --accent-light: #4dd0ff;
    --accent-dark: #0ea5d9;
    
    /* Secondary Colors */
    --secondary-color: #f8fafc;
    --secondary-dark: #e2e8f0;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --bg-gradient: linear-gradient(135deg, #0e1c36 0%, #1fc2ff 100%);
    
    /* Status Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* 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', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

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

/* ===== LOADING SCREEN ===== */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-in-out;
}

.loading-content {
    text-align: center;
    color: var(--text-white);
}

.loading-logo h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.loading-logo span {
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid var(--text-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 2rem auto 0;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(14, 28, 54, 0.95);
    backdrop-filter: blur(10px);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--text-white);
}

.logo-sub {
    font-size: var(--font-size-sm);
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-normal);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lang-select {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    font-size: var(--font-size-sm);
}

.cta-button {
    background: var(--accent-color);
    color: var(--text-white);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.cta-button:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    transition: all var(--transition-normal);
}

/* ===== TAGLINE SECTION ===== */
.tagline-section {
    background: var(--bg-gradient);
    color: var(--text-white);
    padding: 2rem 0 1rem;
    margin-top: 80px; /* Account for fixed header */
    text-align: center;
}

.tagline-text {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
}

.tagline-text span {
    display: none;
    margin-bottom: 0.5rem;
}

.tagline-text span:first-child {
    color: var(--text-white);
}

.tagline-text span:last-child {
    color: var(--accent-color);
    margin-bottom: 0;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: calc(100vh - 140px); /* Adjust for header and tagline */
    display: flex;
    align-items: center;
    background: var(--bg-gradient);
    color: var(--text-white);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-white);
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

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

.stat-number {
    display: none;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--accent-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.hero-visual {
    position: relative;
}

.hero-image {
    position: relative;
    text-align: center;
}

.hero-images-container {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}



.adam-illustration {
    position: absolute;
    width: 200px;
    height: 200px;
    left: 50%;
    top: 35%;
    transform: translate(-50%, -50%);
    filter: drop-shadow(0 20px 40px rgba(31, 194, 255, 0.3));
    animation: float 6s ease-in-out infinite reverse;
    z-index: 5;
}

.floating-cards {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 5%;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
    z-index: 2;
}

.card-2 {
    top: 55%;
    right: 5%;
    animation-delay: 2s;
    z-index: 2;
}

.card-3 {
    top: 55%;
    left: 5%;
    animation-delay: 4s;
    z-index: 2;
}

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

/* Animação específica para card-1 que tem translateX */
.card-1 {
    animation: floatCentered 6s ease-in-out infinite;
}

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

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

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    animation: pulse 8s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 5%;
    animation-delay: 3s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 80%;
    animation-delay: 6s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.1; }
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.about-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.about-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.about-visual {
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

/* ===== ADAM AI SECTION ===== */
.adam-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
}

.adam-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.adam-visual {
    text-align: center;
    position: relative;
}

.adam-avatar {
    position: relative;
    display: inline-block;
}

.adam-avatar img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
}

.adam-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    height: 320px;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(0.9);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0;
    }
}

.adam-header {
    margin-bottom: var(--spacing-xl);
}

.adam-title {
    margin-bottom: var(--spacing-sm);
}

.adam-name {
    display: none;
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--primary-color);
}

.adam-full-name {
    display: none;
    font-size: var(--font-size-lg);
    color: var(--accent-color);
    font-weight: 500;
}

.adam-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.adam-feature {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

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

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.feature-card .feature-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-2xl);
    margin: 0 auto var(--spacing-md);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card ul {
    list-style: none;
    text-align: left;
}

.feature-card li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.feature-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* ===== SECURITY SECTION ===== */
.security {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
}

.security-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.security-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.security-icon {
    width: 60px;
    height: 60px;
    background: var(--success-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.security-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.security-badges {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.badge {
    background: var(--bg-secondary);
    border: 2px solid var(--success-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--success-color);
}

.badge i {
    font-size: var(--font-size-lg);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

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

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: var(--text-secondary);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--secondary-dark);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(31, 194, 255, 0.1);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: -0.5rem;
    left: 0.75rem;
    font-size: var(--font-size-sm);
    color: var(--accent-color);
    background: var(--bg-primary);
    padding: 0 0.25rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-2xl) 0 var(--spacing-sm);
}

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

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: var(--spacing-sm);
}

.footer-logo img {
    width: 40px;
    height: 40px;
}

.footer-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-xs);
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

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

.footer-links a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-himni {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
}

.footer-himni img {
    height: 20px;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-container,
    .about-content,
    .adam-content,
    .security-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .tagline-section {
        padding: 1.5rem 0 0.75rem;
    }
    
    .tagline-text {
        font-size: var(--font-size-2xl);
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-color);
        flex-direction: column;
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        width: 100%;
        text-align: center;
    }
    
    .nav-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-images-container {
        height: 300px;
    }



    .adam-illustration {
        width: 150px;
        height: 150px;
        left: 50%;
        top: 35%;
        transform: translate(-50%, -50%);
        z-index: 5;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .tagline-section {
        padding: 1rem 0 0.5rem;
    }
    
    .tagline-text {
        font-size: var(--font-size-xl);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-images-container {
        height: 250px;
    }



    .adam-illustration {
        width: 120px;
        height: 120px;
        left: 50%;
        top: 35%;
        transform: translate(-50%, -50%);
        z-index: 5;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .adam-name {
        font-size: var(--font-size-4xl);
    }
    
    .floating-cards {
        display: none;
    }
}

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

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

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

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --bg-primary: #ffffff;
        --bg-secondary: #f0f0f0;
    }
}

/* ===== LOGIN MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInUp 0.3s ease-out;
}

.modal-header {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    position: relative;
    border-bottom: 1px solid var(--secondary-dark);
}

.modal-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.modal-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--secondary-dark);
    color: var(--text-primary);
}

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

.login-form .form-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.login-form .form-group input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--secondary-dark);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--bg-secondary);
    transition: all var(--transition-normal);
}

.login-form .form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(31, 194, 255, 0.1);
}

.login-form .form-group label {
    position: absolute;
    top: 50%;
    left: 3rem;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    pointer-events: none;
    transition: all var(--transition-normal);
}

.login-form .form-group input:focus + label,
.login-form .form-group input:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 1rem;
    font-size: var(--font-size-xs);
    color: var(--accent-color);
    background: var(--bg-primary);
    padding: 0 0.5rem;
}

.form-icon {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    pointer-events: none;
    transition: color var(--transition-normal);
}

.login-form .form-group input:focus ~ .form-icon {
    color: var(--accent-color);
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.password-toggle:hover {
    color: var(--accent-color);
    background: rgba(31, 194, 255, 0.1);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--secondary-dark);
    border-radius: var(--radius-sm);
    margin-right: 0.5rem;
    position: relative;
    transition: all var(--transition-normal);
}

.checkbox-container input:checked ~ .checkmark {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.checkbox-container input:checked ~ .checkmark::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 6px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forgot-password {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.forgot-password:hover {
    color: var(--accent-dark);
    text-decoration: underline;
}

.login-submit {
    width: 100%;
    padding: 1rem;
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.login-divider {
    text-align: center;
    margin: var(--spacing-lg) 0;
    position: relative;
}

.login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--secondary-dark);
}

.login-divider span {
    background: var(--bg-primary);
    padding: 0 1rem;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.login-alternatives {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.btn-outline:hover {
    background: var(--secondary-dark);
    border-color: var(--primary-color);
}

.register-btn {
    width: 100%;
    justify-content: center;
}

/* Modal animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Mobile responsiveness for modal */
@media (max-width: 768px) {
    .modal {
        padding: var(--spacing-xs);
    }
    
    .modal-content {
        max-width: 100%;
        margin: 0;
    }
    
    .modal-header {
        padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
    }
    
    .modal-header h2 {
        font-size: var(--font-size-xl);
    }
    
    .modal-body {
        padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .modal-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .modal-header p {
        font-size: var(--font-size-xs);
    }
    
    .login-form .form-group input {
        padding: 0.875rem 0.875rem 0.875rem 2.5rem;
    }
    
    .form-icon {
        left: 0.875rem;
        font-size: var(--font-size-base);
    }
    
    .password-toggle {
        right: 0.875rem;
    }
}