/* style.css - Minimalistic WeTransfer-inspired design */

:root {
    --primary-color: #409FFF;
    --primary-hover: #3388E6;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --border-color: #e5e5e5;
    --background-light: #fafafa;
    --error-color: #ff4444;
    --success-color: #00cc66;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --border-radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: #ffffff;
}

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

/* Header */
.header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    background-color: #ffffff;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.logo-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background-color: var(--background-light);
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 20px;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background-color: var(--background-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.step p {
    font-size: 16px;
    color: var(--text-light);
}

/* Trust Indicators Section */
.trust-indicators {
    padding: 60px 0;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.trust-item {
    padding: 20px;
}

.trust-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.trust-label {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 500;
}

/* Security Info Section */
.security-info {
    padding: 80px 0;
}

.security-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.security-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.security-content p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 0;
    background-color: var(--background-light);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.use-case {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.use-case:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.use-case-icon {
    width: 64px;
    height: 64px;
    background-color: rgba(64, 159, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.use-case h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.use-case p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #409FFF 0%, #3388E6 100%);
    color: white;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.cta-content > p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 500;
}

.cta-feature svg {
    flex-shrink: 0;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 14px;
}

.footer p {
    margin: 5px 0;
}

/* Download Page Styles */
.download-container {
    max-width: 600px;
    margin: 60px auto;
    padding: 0 20px;
}

.download-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.download-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.download-card .subtitle {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color 0.2s;
}

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

.form-group input::placeholder {
    color: #999;
}

.btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
}

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

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

.btn-primary:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.file-list {
    margin: 30px 0;
    padding: 20px;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.file-item:last-child {
    border-bottom: none;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.file-details h4 {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
}

.file-size {
    font-size: 14px;
    color: var(--text-light);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

.alert-success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #81c784;
}

.alert-info {
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #90caf9;
}

/* Admin Panel Styles */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: var(--text-dark);
    color: white;
    padding: 20px;
}

.admin-sidebar h2 {
    font-size: 20px;
    margin-bottom: 30px;
}

.admin-nav {
    list-style: none;
}

.admin-nav li {
    margin-bottom: 10px;
}

.admin-nav a {
    display: block;
    padding: 12px 16px;
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: background-color 0.2s;
}

.admin-nav a:hover,
.admin-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
}

.admin-content {
    flex: 1;
    padding: 40px;
    background-color: var(--background-light);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.admin-header h1 {
    font-size: 32px;
    font-weight: 700;
}

.btn-secondary {
    background-color: white;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
}

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

.card {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

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

.table thead {
    background-color: var(--background-light);
}

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-light);
}

.table td {
    font-size: 14px;
    color: var(--text-dark);
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.badge-error {
    background-color: #ffebee;
    color: #c62828;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

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

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 700;
}

.close-modal {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-img {
        height: 32px;
    }

    .logo-text {
        font-size: 20px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

    .features-grid,
    .steps-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .trust-number {
        font-size: 36px;
    }

    .trust-label {
        font-size: 14px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .cta-content > p {
        font-size: 16px;
    }

    .cta-features {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

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

    .admin-sidebar {
        width: 100%;
    }

    .download-card {
        padding: 30px 20px;
    }
}