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

:root {
    --primary: #4f46e5;
    --secondary: #7c3aed;
    --dark-bg: #1a1a2e;
    --darker-bg: #16213e;
    --darkest-bg: #0f3460;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-tertiary: #9ca3af;
    --success: #10b981;
    --danger: #ef4444;
    --card-bg: rgba(42, 42, 62, 0.8);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--darker-bg) 50%, var(--darkest-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Navbar */
.navbar {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(79, 70, 229, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo .tagline {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: -4px;
}

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

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

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

.delete-btn {
    background: rgba(239, 68, 68, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--danger) !important;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.2);
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-tertiary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(79, 70, 229, 0.1);
}

.btn-large {
    font-size: 1.2rem;
    padding: 1.2rem 2.5rem;
}

/* Features */
.features {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    font-weight: 700;
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(79, 70, 229, 0.2);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.3);
}

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

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-tertiary);
}

/* CTA */
.cta {
    padding: 5rem 0;
    text-align: center;
    background: rgba(79, 70, 229, 0.05);
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(79, 70, 229, 0.2);
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-tertiary);
}

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

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(79, 70, 229, 0.1);
    color: var(--text-tertiary);
}

/* Content Pages */
.content-page {
    padding: 4rem 0;
    min-height: calc(100vh - 200px);
}

.content-page h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.content-page .subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.content-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid rgba(79, 70, 229, 0.2);
    margin-bottom: 2rem;
}

.content-card h2 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.content-card h3 {
    color: var(--text-primary);
    margin: 1.5rem 0 0.8rem;
    font-size: 1.3rem;
}

.content-card p, .content-card li {
    color: var(--text-tertiary);
    margin-bottom: 0.8rem;
}

.content-card ul {
    margin-left: 1.5rem;
}

.warning-box {
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid var(--danger);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.warning-box h3 {
    color: var(--danger);
    margin-top: 0;
}

.success-box {
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid var(--success);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.success-box h3 {
    color: var(--success);
    margin-top: 0;
}

/* Delete Account Form */
.delete-form {
    max-width: 600px;
    margin: 2rem auto;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(42, 42, 62, 0.6);
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

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

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}