/* QuickShare - Clean Professional Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #2563EB;
    --cloud-gray: #64748B;
    --success-green: #10B981;
    --pure-white: #FFFFFF;
    --light-gray: #F8FAFC;
    --medium-gray: #E2E8F0;
    --dark-gray: #1E293B;
    --charcoal: #0F172A;
    
    --gradient-blue: linear-gradient(135deg, var(--primary-blue), #3B82F6);
    --gradient-success: linear-gradient(135deg, var(--success-green), #059669);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background: var(--pure-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--medium-gray);
    box-shadow: var(--shadow-sm);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.logo-icon {
    font-size: 1.8rem;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: -2px;
}

.logo-text .tagline {
    font-size: 0.75rem;
    color: var(--cloud-gray);
    font-weight: 500;
}

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

.nav-menu a {
    color: var(--dark-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

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

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

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--cloud-gray);
    border: 1px solid var(--medium-gray);
}

.btn-secondary:hover {
    background: var(--light-gray);
    color: var(--dark-gray);
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 22px;
    height: 2px;
    background: var(--dark-gray);
    margin: 2px 0;
    transition: 0.3s;
    border-radius: 1px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--pure-white) 100%);
    position: relative;
    padding-top: 80px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-badge {
    display: inline-block;
    background: var(--gradient-success);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--charcoal);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--cloud-gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

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

.stat-label {
    font-size: 0.85rem;
    color: var(--cloud-gray);
    font-weight: 500;
}

/* Upload Demo */
.hero-demo {
    display: flex;
    justify-content: center;
}

.upload-demo {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
}

.upload-area {
    border: 2px dashed var(--medium-gray);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    background: var(--light-gray);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: var(--primary-blue);
    background: rgba(37, 99, 235, 0.05);
}

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

.upload-area h3 {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.browse-link {
    color: var(--primary-blue);
    cursor: pointer;
    font-weight: 600;
}

.upload-info {
    font-size: 0.8rem;
    color: var(--cloud-gray);
    margin-top: 0.5rem;
}

.upload-progress {
    display: none;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 8px;
    margin-bottom: 1rem;
}

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

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--dark-gray);
}

.file-size {
    font-size: 0.85rem;
    color: var(--cloud-gray);
}

.upload-status {
    font-size: 1.2rem;
}

.share-link {
    background: white;
    border: 1px solid var(--medium-gray);
    border-radius: 8px;
    padding: 1rem;
}

.link-input {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.link-input input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--medium-gray);
    border-radius: 6px;
    font-size: 0.9rem;
}

.copy-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
}

.share-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.share-options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--cloud-gray);
    cursor: pointer;
}

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-block;
    background: var(--primary-blue);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--cloud-gray);
    line-height: 1.6;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--pure-white);
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--medium-gray);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--dark-gray);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--cloud-gray);
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: var(--light-gray);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-md);
}

.step h3 {
    color: var(--dark-gray);
    margin-bottom: 1rem;
    font-weight: 600;
}

.step p {
    color: var(--cloud-gray);
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--pure-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: white;
    border: 2px solid var(--medium-gray);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-blue);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.plan-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.plan-price span {
    font-size: 1rem;
    color: var(--cloud-gray);
}

.plan-description {
    color: var(--cloud-gray);
    margin-bottom: 2rem;
}

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

.plan-features li {
    padding: 0.5rem 0;
    color: var(--dark-gray);
    font-size: 0.95rem;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--cloud-gray);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.trust-indicators {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.trust-icon {
    font-size: 1.8rem;
    min-width: 50px;
}

.trust-item h4 {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.trust-item p {
    color: var(--cloud-gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.about-stats {
    position: sticky;
    top: 100px;
}

.company-stats {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.company-stats h3 {
    color: var(--dark-gray);
    margin-bottom: 2rem;
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.company-stat .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.company-stat .stat-label {
    font-size: 0.9rem;
    color: var(--cloud-gray);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--pure-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--medium-gray);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-card h3 {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-card p {
    color: var(--cloud-gray);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.contact-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
}

.contact-form {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group label {
    display: block;
    color: var(--dark-gray);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--medium-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
.footer {
    background: var(--charcoal);
    color: white;
    padding: 50px 0 20px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo .logo-icon {
    font-size: 1.5rem;
}

.footer-logo h3 {
    color: var(--primary-blue);
    margin-bottom: -2px;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    color: #94A3B8;
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94A3B8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu, .nav-actions {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .upload-demo {
        margin: 0 1rem;
    }
}