:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #1e293b;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
    --card-background: #ffffff;
    --success-color: #10b981;
    --error-color: #ef4444;
    --gradient-start: #6366f1;
    --gradient-end: #4f46e5;
}

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

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

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

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 6rem;
    padding: 2rem 0;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    letter-spacing: -0.02em;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--primary-color);
    opacity: 0.2;
    border-radius: 4px;
    transform: translateY(4px);
}

.subtitle {
    font-size: 1.5rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 6rem;
}

.feature-card {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.feature-card p {
    color: #64748b;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Signup Section */
.signup-section {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    margin: -2rem -2rem 6rem -2rem;
    padding: 6rem 2rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.signup-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(10px);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.signup-form:hover {
    transform: translateY(-5px);
}

.signup-form h2 {
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 2rem;
    font-weight: 700;
}

.form-subtitle {
    text-align: center;
    color: #64748b;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group input:invalid {
    border-color: var(--error-color);
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group input:invalid + .error-message {
    display: block;
}

.cta-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button i {
    transition: transform 0.3s ease;
}

.cta-button:hover i {
    transform: translateX(4px);
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(to bottom, var(--background-color), white);
}

.how-it-works h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 4rem;
    font-weight: 700;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.step {
    position: relative;
    padding: 2.5rem;
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.step h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.step p {
    color: #64748b;
    font-size: 1rem;
    line-height: 1.6;
}

/* Footer */
footer {
    margin-top: 6rem;
    padding: 3rem 0;
    background: var(--secondary-color);
    color: white;
}

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

.copyright {
    color: #94a3b8;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

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

/* Success Message */
.success-message {
    text-align: center;
    padding: 2rem;
}

.success-message i {
    font-size: 3rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.success-message h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.success-message p {
    color: #64748b;
    margin-bottom: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.25rem;
    }

    .signup-section {
        margin: -1rem -1rem 4rem -1rem;
        padding: 4rem 1rem;
    }

    .signup-form {
        padding: 2rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

/* Dashboard Styles */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.header-content h1 {
    font-size: 1.75rem;
    color: var(--secondary-color);
    font-weight: 700;
}

.logout-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.logout-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.logout-button:active {
    transform: translateY(0);
}

.generated-email {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.generated-email h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.email-display {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}

#generatedEmail {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    padding: 1rem 1.25rem;
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    flex-grow: 1;
    color: var(--secondary-color);
}

.copy-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.copy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.copy-button:active {
    transform: translateY(0);
}

.help-text {
    color: #64748b;
    font-size: 0.95rem;
    margin-top: 1rem;
    line-height: 1.6;
}

.preferences {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.preferences h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-weight: 600;
}

.preferences .form-group {
    margin-bottom: 2rem;
}

.preferences label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 1rem;
}

.preferences select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    color: var(--secondary-color);
    cursor: pointer;
}

.preferences select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.save-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.save-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.save-button:active {
    transform: translateY(0);
}

.save-button i {
    transition: transform 0.3s ease;
}

.save-button:hover i {
    transform: translateX(4px);
}

/* Success Message in Dashboard */
.success-message {
    background: var(--success-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive Dashboard */
@media (max-width: 768px) {
    .dashboard-container {
        padding: 1rem;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1.25rem;
    }

    .email-display {
        flex-direction: column;
    }

    .copy-button {
        width: 100%;
    }

    .preferences {
        padding: 1.5rem;
    }
} 
.stats {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.stats h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.stats-container {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.stat-box {
    background-color: var(--background-color);
    border-radius: 12px;
    padding: 1.5rem;
    flex: 1;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.stat-box h3 {
    margin-top: 0;
    color: var(--secondary-color);
    font-size: 1.1rem;
    font-weight: 500;
}

.stat-box p {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0.5rem 0 0;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (max-width: 768px) {
    .stats-container {
        flex-direction: column;
        gap: 1rem;
    }
}
/* Landing page header */
.landing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    margin-bottom: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.dashboard-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.dashboard-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.dashboard-link i {
    transition: transform 0.3s ease;
}

.dashboard-link:hover i {
    transform: translateX(4px);
}

/* CTA Section */
.cta-section {
    text-align: center;
    margin: 2rem 0 4rem;
    padding: 2rem;
    background: var(--background-color);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

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

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

/* Stats refresh indicator */
.stats-refresh {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 0.85rem;
    color: #64748b;
    margin-top: 0.5rem;
}

.stats-refresh i {
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .landing-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .cta-section {
        padding: 1.5rem;
    }
    
    .cta-section h2 {
        font-size: 1.5rem;
    }
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.stats-refresh i {
    margin-right: 0.5rem;
    animation: spin 2s linear infinite;
}
/* Next Digest Section */
.next-digest {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.next-digest h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.next-digest-info {
    margin-bottom: 1.5rem;
}

.next-digest-info p {
    margin-bottom: 0.5rem;
    color: #64748b;
}

.next-digest-info span {
    font-weight: 600;
    color: var(--secondary-color);
}

#unprocessedCount {
    color: var(--primary-color);
}

.send-now-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.send-now-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(99, 102, 241, 0.3);
}

.send-now-button:active {
    transform: translateY(0);
}

.send-now-button:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}