/*
 * Prannoy Pilligundla - Personal Site
 * Aesthetic: Clean, content-first minimalism
 */

:root {
    --color-bg: #FAFAFA;
    --color-text: #171717;
    --color-text-secondary: #525252;
    --color-text-tertiary: #A3A3A3;
    --color-border: #E5E5E5;
    --color-link: #171717;
    --color-link-hover: #525252;

    --font-sans: 'Newsreader', Georgia, serif;
    --font-mono: 'Geist Mono', ui-monospace, monospace;

    --max-width: 640px;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 17px;
    scroll-behavior: smooth;
    scroll-padding-top: 2rem;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* Layout */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

/* Links */
a {
    color: var(--color-link);
    text-decoration: underline;
    text-decoration-color: var(--color-border);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s ease;
}

a:hover {
    text-decoration-color: var(--color-text);
}

/* Header */
.header {
    margin-bottom: var(--space-md);
}

h1 {
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: var(--space-xs);
}

.tagline {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.nav a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-decoration: none;
}

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

/* Sections */
.section {
    margin-bottom: var(--space-xl);
}

.section p {
    margin-bottom: var(--space-sm);
}

.section p:last-child {
    margin-bottom: 0;
}

.section strong {
    font-weight: 500;
}

h2 {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
}

.section-intro {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

/* Work Section */
.work-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.work-item {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.work-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.work-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.25rem;
}

.work-company {
    font-weight: 500;
}

.work-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
}

.work-role {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Publications */
.pub-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pub-list li {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.pub-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pub-list a {
    display: block;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 0.375rem;
}

.pub-venue {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.pub-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--color-bg);
    background-color: var(--color-text);
    padding: 0.15rem 0.4rem;
    border-radius: 2px;
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* Footer */
.footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer p {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* Responsive */
@media (max-width: 640px) {
    html {
        font-size: 16px;
    }

    main {
        padding: var(--space-lg) var(--space-sm);
    }

    h1 {
        font-size: 1.5rem;
    }

    .work-header {
        flex-direction: column;
        gap: 0.125rem;
    }

    .work-date {
        order: -1;
    }
}