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

:root {
    --bg-main: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    --accent-color: #ff6b6b;
    --accent-hover: #ff5252;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 2rem;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 3rem;
    align-items: start;
}

/* Profile Section */
.profile-section {
    position: sticky;
    top: 2rem;
}

.profile-content {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.profile-image {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.profile-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-align: center;
}

.profile-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    align-items: center;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.meta-icon {
    font-size: 1rem;
}

.profile-bio {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.6;
}

.newsletter-section {
    margin-bottom: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.newsletter-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    flex-direction: column;
}

.newsletter-input {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    background: var(--bg-main);
    color: var(--text-primary);
    transition: border-color 0.3s;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.newsletter-button {
    padding: 0.75rem 1.5rem;
    background: #ffd93d;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.newsletter-button:hover {
    background: #ffd700;
    transform: translateY(-1px);
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.3s, transform 0.2s;
    border-radius: 8px;
}

.social-link:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

/* Projects Section */
.projects-section {
    min-height: 100vh;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.placeholder-card {
    cursor: default;
    opacity: 0.7;
}

.placeholder-card:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.project-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.project-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.project-revenue {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-main);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    white-space: nowrap;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.project-graph {
    margin-top: auto;
    padding-top: 1rem;
    height: 40px;
    width: 100%;
}

.project-graph svg {
    width: 100%;
    height: 100%;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .profile-section {
        position: static;
    }

    .profile-content {
        max-width: 500px;
        margin: 0 auto;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .container {
        gap: 1.5rem;
    }

    .profile-content {
        padding: 1.5rem;
    }

    .profile-avatar {
        width: 100px;
        height: 100px;
        font-size: 2rem;
    }

    .profile-name {
        font-size: 1.75rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .project-card {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-button {
        width: 100%;
    }
}

/* Smooth transitions */
* {
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}