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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background: #ffffff;
    --background-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-svg {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(99, 102, 241, 0.4);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background-color: var(--background);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
    background: var(--background-secondary);
    border-radius: 1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* How It Works Section */
.how-it-works {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

/* Pricing Section */
.pricing {
    padding: 6rem 2rem;
    background-color: var(--background);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.plan-price {
    margin-bottom: 2rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    color: var(--text-secondary);
    font-size: 1rem;
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
}

.plan-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    background: var(--gradient);
    text-align: center;
    color: white;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.cta-section .btn-primary:hover {
    background: var(--background-secondary);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Mobile Menu Toggle - hidden by default */
.mobile-menu-toggle {
    display: none;
}

/* Auth Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    margin: auto;
    padding: 0;
    border-radius: 1rem;
    width: 90%;
    max-width: 450px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

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

.modal-close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    color: var(--text-secondary);
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    transition: color 0.3s;
    z-index: 1;
}

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

.auth-form {
    padding: 2.5rem;
}

.auth-form h2 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: inherit;
}

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

.form-help {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.password-requirements {
    margin-top: 0.75rem;
}

.password-requirements ul {
    list-style: none;
    margin: 0.5rem 0 0 0;
    padding: 0;
}

.password-requirements li {
    font-size: 0.75rem;
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.password-requirements li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #ef4444;
    font-weight: bold;
}

.password-requirements li.requirement-met::before {
    content: "✓";
    color: #10b981;
}

.password-strength {
    width: 100%;
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease, background-color 0.3s ease;
    background-color: #ef4444;
}

.password-strength-bar.weak {
    width: 33%;
    background-color: #ef4444;
}

.password-strength-bar.medium {
    width: 66%;
    background-color: #f59e0b;
}

.password-strength-bar.strong {
    width: 100%;
    background-color: #10b981;
}

#password-match-message {
    color: #ef4444;
}

#password-match-message.match {
    color: #10b981;
}

.verification-code-inputs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin: 2rem 0;
}

.verification-digit {
    width: 3rem;
    height: 3.5rem;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0;
}

.verification-digit:focus {
    border-color: var(--primary-color);
    outline: none;
}

.form-group input[type="tel"] {
    width: 100%;
}

.form-group-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-group-checkbox input[type="checkbox"] {
    margin-top: 0.25rem;
    cursor: pointer;
}

.form-group-checkbox label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.form-footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.text-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.text-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: color 0.3s;
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 4px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
    }
    
    .mobile-menu-toggle span {
        width: 25px;
        height: 3px;
        background-color: var(--text-primary);
        transition: 0.3s;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .nav-cta {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Download Section */
.download-section {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
}

.download-notice {
    text-align: center;
    padding: 2rem;
    background: #fef3c7;
    border-radius: 1rem;
    margin-bottom: 2rem;
}

.download-notice p {
    color: #92400e;
    font-size: 1.125rem;
    margin: 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 2rem;
}

.download-card {
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.download-icon {
    margin: 0 auto 1.5rem;
    display: flex;
    justify-content: center;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.download-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.download-info {
    text-align: center;
    margin-top: 2rem;
}

.download-help {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
    padding: 6rem 2rem;
    background-color: var(--background);
}

.contact-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form-wrapper {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: inherit;
}

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

.contact-form textarea {
    resize: vertical;
}

.form-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
}

.form-result.success {
    background: #d1fae5;
    color: #065f46;
}

.form-result.error {
    background: #fee2e2;
    color: #991b1b;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-item {
    padding: 1.5rem;
    background: var(--background-secondary);
    border-radius: 1rem;
}

.contact-info-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-info-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.step,
.pricing-card {
    animation: fadeIn 0.8s ease-out;
}