/* Base Styles & Resets */

:root {
    /* Fonts */
    --font-serif: 'Libre Baskerville', serif;
    --font-sans: 'Inter', sans-serif;

    /* Transitions */
    --transition-base: 0.3s ease;

    /* Icons */
    --icon-external: url('assets/icon-external.svg');
    --icon-file: url('assets/icon-file.svg');

    /* Light Mode Palette */
    --color-bg: #FFFEFC;
    --color-bg-offset: #FDFAF5;
    --color-bg-offset-badge: #F5EEE2;
    --color-bg-invert: #0A0A0A;
    --color-text: #0A0A0A;
    --color-text-secondary: #636374;
    --color-text-invert: #FFFFFF;
    --color-border: #0A0A0A;
    --color-border-light: #F4EEE6;
    --color-icon-filter: none;
}

[data-theme="dark"] {
    /* Dark Mode Palette */
    --color-bg: #121212;
    --color-bg-offset: #1A1A1A;
    --color-bg-offset-badge: #2D2D2D;
    --color-bg-invert: #FFFFFF;
    --color-text: #E0E0E0;
    --color-text-secondary: #A8A29E;
    --color-text-invert: #121212;
    --color-border: #E0E0E0;
    --color-border-light: #2D2D2D;
    --color-icon-filter: invert(0.9);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--color-bg-offset);
    height: 100%;
    transition: background-color var(--transition-base);
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding: 0;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-base);
}

img {
    filter: var(--color-icon-filter);
    transition: filter var(--transition-base);
}

.container {
    width: 100%;
    max-width: 848px;
    margin: 0 auto;
    padding: 48px 24px;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

main.container {
    flex: 1;
}

/* Typography */

h1,
h2 {
    font-family: var(--font-serif);
    font-weight: 500;
    letter-spacing: -0.5px;
    color: var(--color-text);
    transition: color var(--transition-base);
}

h1 {
    font-size: 24px;
    line-height: 110%;
}

h2 {
    font-size: 22px;
    line-height: 125%;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 12px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: border-color var(--transition-base), color var(--transition-base);
}

p {
    font-family: var(--font-sans);
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 16px;
    transition: color var(--transition-base);
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* Masthead */

.masthead {
    width: 100%;
    background-color: var(--color-bg-offset);
    padding: 40px 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.masthead .container {
    padding-top: 0;
    padding-bottom: 0;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.masthead .logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.masthead .logo h1 {
    max-width: 300px;
}

.masthead nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0 -8px;
}

.masthead nav a {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
    opacity: 1;
    padding: 8px;
}

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

.masthead nav a.active {
    font-weight: 600;
}

.masthead .logo-link {
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.masthead .logo-link:hover {
    text-decoration: none;
}

.masthead .logo-icon {
    width: 48px;
    height: 48px;
}

.masthead .logo-icon img {
    width: 100%;
    height: 100%;
}

@media (max-width: 720px) {
    .masthead {
        padding: 32px 0;
    }

    .masthead .container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .masthead nav ul {
        justify-content: center;
        gap: 12px;
    }

    .masthead nav a {
        font-size: 16px;
    }

    .masthead .logo h1 {
        max-width: none;
    }
}

@media (max-width: 568px) {

    .masthead .logo h1 {
        max-width: 300px;
        text-align: left;
    }
}

@media (max-width: 410px) {

    .masthead .logo h1 {
        max-width: none;
        text-align: center;
    }

    .masthead .logo-icon {
        display: none;
    }
}

/* Theme Toggle Button */

.theme-toggle-btn {
    background: none;
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: all var(--transition-base);
    margin-left: 8px;
}

.theme-toggle-btn:hover {
    background-color: var(--color-bg);
    border-color: var(--color-border);
}

.theme-toggle-btn img {
    width: 20px;
    height: 20px;
    filter: none;
}

[data-theme="dark"] .theme-toggle-btn img {
    filter: invert(1);
}

.theme-toggle-btn .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle-btn .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle-btn .moon-icon {
    display: none;
}

/* Badges */


.badge {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 4px 8px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 20px;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.current-badge {
    background-color: var(--color-bg-invert);
    color: var(--color-text-invert);
}

.archive-badge {
    background-color: var(--color-bg-offset-badge);
    color: var(--color-text);
}

/* Document Groups & Lists */

.document-group {
    margin-bottom: 32px;
}

.document-group:last-child {
    margin-bottom: 0;
}

.document-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.document-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 12px;
    align-items: start;
}

.document-list li::before {
    content: "•";
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.2;
    flex-shrink: 0;
}

.document-link {
    grid-column: 2;
    justify-self: start;
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 14px;
    display: inline;
    line-height: 1.25;
}

.description {
    grid-column: 2;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 2px;
    transition: color var(--transition-base);
}

/* Link Icons Base */
.document-link::after {
    content: "";
    display: inline-block;
    width: 14px;
    height: 14px;
    margin: 0 0 2px 8px;
    background-color: currentColor;
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    vertical-align: middle;
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.document-link:hover::after {
    opacity: 1;
}

/* Web Link Icon (External) */
.document-link[href^="http"]::after {
    -webkit-mask-image: var(--icon-external);
    mask-image: var(--icon-external);
}

/* Archive Link Icon (PDF) */
.document-link[href$=".pdf"]::after {
    -webkit-mask-image: var(--icon-file);
    mask-image: var(--icon-file);
}

/* Contact */

.email-link {
    display: inline-block;
    color: var(--color-text);
    font-weight: 500;
}

/* Footer */

.site-footer {
    padding: 40px;
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-offset);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.copyright {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-align: center;
    font-family: var(--font-sans);
}