/* Modern Minimal Design - Enhanced */

:root {
    --bg-color: #fafaf8;
    --bg-alt: #f4f2f0;
    --text-color: #1a1a1a;
    --text-secondary: #555555;
    --border-color: #e0ddd8;
    --accent-color: #0066cc;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: "Lora", serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

/* Paper Container - Two Column Layout */
.paper-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2.5rem;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: sticky;
    top: 3rem;
    height: fit-content;
    border-right: 1px solid var(--border-color);
    padding-right: 2.5rem;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.title {
    font-size: 1.8rem;
    font-weight: 600;
    line-height: 1.2;
    position: relative;
}

.title a {
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    background: linear-gradient(to right, var(--accent-color), var(--accent-color)) 0 100% / 0 2px no-repeat;
}

.title a:hover {
    background-size: 100% 2px;
    color: var(--accent-color);
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    font-weight: 400;
    margin-top: -0.5rem;
}

/* Banner Image - Enhanced */
.banner-image {
    width: 100%;
    margin: 0.5rem 0 1rem 0;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.banner-image:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.banner-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.banner-image:hover img {
    transform: scale(1.02);
}

/* Sidebar Navigation */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.2rem 0;
}

.nav-item {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: "Inter", sans-serif;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    padding: 0.4rem 0;
    transition: all 0.3s ease;
    text-transform: lowercase;
    letter-spacing: 0.02em;
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.nav-item:hover {
    color: var(--accent-color);
    padding-left: 0.5rem;
}

.nav-item:hover::before {
    width: 100%;
}

/* Metadata Section */
.metadata {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.meta-label {
    font-weight: 600;
    font-family: "Inter", sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.metadata p {
    margin: 0.3rem 0;
}

.metadata a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border 0.2s ease;
}

.metadata a:hover {
    border-bottom: 1px solid var(--accent-color);
}

/* Main Content Area */
.content-area {
    padding: 0 1.5rem;
}

#content {
    font-size: 1rem;
    color: var(--text-color);
    line-height: 1.7;
}

#content > p {
    margin-bottom: 1.5rem;
}

/* Headings - Enhanced */
#content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-color);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid transparent;
    background: linear-gradient(to right, var(--border-color), var(--border-color)) 0 100% / 100% 1px no-repeat;
    position: relative;
}

#content h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 60px;
    height: 2px;
    background: var(--gradient-1);
}

#content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1rem;
}

#content h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--gradient-1);
    border-radius: 2px;
}

/* Lists */
#content > ul {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

#content > ul > li {
    margin: 1.2rem 0;
    padding-left: 1.8rem;
    position: relative;
}

#content > ul > li::before {
    content: "§";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 300;
    font-size: 1.1rem;
}

/* Links */
#content a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border 0.2s ease;
}

#content a:hover {
    border-bottom: 1px solid var(--accent-color);
}

/* Experience Section */
.experience {
    margin: 2rem 0;
}

.experience-title {
    font-weight: 600;
    font-family: "Inter", sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.experience-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2.2rem;
}

.experience-item {
    padding: 0;
    border: none;
    background: transparent;
}

.experience-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.8rem;
}

.experience-role {
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
}

.experience-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
}

.experience-points {
    margin: 0.8rem 0 0;
    padding-left: 1.5rem;
    color: var(--text-color);
}

.experience-points li {
    margin: 0.4rem 0;
    list-style: disc;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 900px) {
    .paper-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem 1.5rem;
    }

    .sidebar {
        position: relative;
        top: 0;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-right: 0;
        padding-bottom: 2rem;
    }

    .banner-image {
        max-width: 250px;
    }

    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1rem;
        border: none;
        padding: 0;
        margin-bottom: 1.5rem;
    }

    .nav-item {
        padding: 0.5rem 1rem;
        background: var(--bg-alt);
        border: 1px solid var(--border-color);
        border-radius: 2px;
    }

    .nav-item:hover {
        padding-left: 1rem;
    }

    .metadata {
        display: flex;
        gap: 2rem;
    }

    .content-area {
        padding: 0;
    }
}

@media (max-width: 600px) {
    .paper-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem 1rem;
    }

    .title {
        font-size: 1.5rem;
    }

    .banner-image {
        max-width: 200px;
    }

    .sidebar-nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-item {
        width: 100%;
    }

    #content > ul > li {
        padding-left: 1.5rem;
    }

    .experience-row {
        flex-direction: column;
        gap: 0.3rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#content {
    animation: fadeIn 0.5s ease-out;
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background: rgba(102, 126, 234, 0.2);
    color: var(--text-color);
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}