/* AI Sidekick Portfolio Styles */

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #0a1936, #040a1c);
    color: #e3edff;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

/* Navigation */
.ai-nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    font-size: 1.1rem;
    font-weight: bold;
    color: #b5cfff;
    text-decoration: none;
    letter-spacing: 0.05em;
}
.nav-links {
    display: flex;
    gap: 1.5rem;
}
.nav-links a {
    color: #9ab8ef;
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.95rem;
}
.nav-links a:hover {
    color: #b5cfff;
}
.nav-links a.active {
    color: #7eaaff;
    font-weight: 600;
}

/* Hero with avatar */
.hero {
    text-align: center;
    padding: 4rem 1rem 2rem;
    width: 100%;
}
.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #5c76d2, #1f2a4d);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.4);
}
.avatar-face {
    font-size: 3rem;
}
.hero h1 {
    margin: 0;
    font-size: 2rem;
    color: #b5cfff;
}
.hero p {
    margin-top: 0.5rem;
    color: #9ab8ef;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Chat container */
.chat-container {
    width: 90%;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    padding: 1rem;
    margin-bottom: 4rem;
    display: flex;
    flex-direction: column;
}
.chat-log {
    flex-grow: 1;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 0.5rem;
    margin-bottom: 1rem;
}
.message {
    padding: 0.5rem 0.8rem;
    margin-bottom: 0.6rem;
    border-radius: 12px;
    max-width: 90%;
    line-height: 1.4;
    word-wrap: break-word;
}
.message.ai {
    background: rgba(95, 138, 235, 0.2);
    color: #c5d8ff;
    align-self: flex-start;
}
.message.user {
    background: rgba(255, 255, 255, 0.1);
    color: #e3edff;
    align-self: flex-end;
}
.chat-form {
    display: flex;
    gap: 0.5rem;
}
#user-input {
    flex-grow: 1;
    padding: 0.6rem 0.8rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: #e3edff;
}
#user-input:focus {
    outline: none;
    border-color: #7eaaff;
}
.chat-form button {
    padding: 0.6rem 1rem;
    border: none;
    border-radius: 12px;
    background: #7eaaff;
    color: #0c1c3f;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s ease;
}
.chat-form button:hover {
    background: #9bbcff;
}

/* Main content area */
main {
    width: 90%;
    max-width: 900px;
    margin: 2rem auto;
    padding-bottom: 4rem;
}

/* Sections */
.ai-section {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(8px);
}
.ai-section h2 {
    color: #b5cfff;
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.6rem;
}
.ai-section h3 {
    color: #9ab8ef;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}
.ai-section p {
    line-height: 1.6;
    color: #c5d8ff;
}
.ai-section ul {
    line-height: 1.8;
    color: #c5d8ff;
}

/* Tech specs / tags */
.tech-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}
.spec {
    background: rgba(126, 170, 255, 0.15);
    border: 1px solid rgba(126, 170, 255, 0.3);
    color: #b5cfff;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.ai-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.ai-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}
.ai-card h3 {
    margin-top: 0;
    color: #b5cfff;
}
.ai-card p {
    color: #9ab8ef;
    line-height: 1.6;
}
.card-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}
.card-thumb {
    width: 100%;
    height: 120px;
    border-radius: 8px;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    margin-right: 0.5rem;
    margin-top: 0.5rem;
}
.btn.primary {
    background: #7eaaff;
    color: #0c1c3f;
}
.btn.primary:hover {
    background: #9bbcff;
}
.btn:not(.primary) {
    background: rgba(255, 255, 255, 0.1);
    color: #b5cfff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn:not(.primary):hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Contact info */
.contact-info {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}
.contact-info p {
    margin: 0.5rem 0;
    color: #c5d8ff;
}
.contact-info a {
    color: #7eaaff;
    text-decoration: none;
}
.contact-info a:hover {
    text-decoration: underline;
}

/* Social links */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}
.social-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #b5cfff;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}
.social-icon:hover {
    background: rgba(126, 170, 255, 0.2);
    border-color: #7eaaff;
    transform: translateY(-2px);
}

/* Blog posts */
.blog-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.blog-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: #9ab8ef;
}
.blog-card h3 {
    margin: 0.5rem 0;
    color: #b5cfff;
}
.blog-note {
    background: rgba(126, 170, 255, 0.1);
    border: 1px solid rgba(126, 170, 255, 0.3);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 2rem;
    color: #c5d8ff;
}
.blog-note code {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* Footer */
footer {
    width: 100%;
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ab8ef;
    margin-top: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .ai-nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}