@font-face {
    font-family: "Latin Modern";
    font-style: normal;
    src:
        url("fonts/lmroman8-regular.otf") format("opentype");
}

@font-face {
    font-family: "Latin Modern";
    font-style: italic;
    src:
        url("fonts/lmromanslant8-regular.otf") format("opentype");
}

:root {
    --primary-color: #4285F4;
    --secondary-color: #34A853;
    --accent-color: #EA4335;
    --background-color: white;
    --quote-bg-color: #F5F5F5;
    --text-color: #222222;
    --light-gray: #ECF0F1;
    --dark-gray: #303333;
    --yellow: #FDBE49;
    --green: #5DC080;
    --blue: #3AB9CF;
    --pink: #F96269;

    --bittersweet: #F05D5E;
    --caribbean-current: #0F7173;
    --anti-flash-white: #E7ECEF;
    --raisin-black: #272932;

    --font-main: 'Georgia', serif;
    --font-heading: 'Helvetica', sans-serif;
    --font-size-base: 18px;
    --line-heigh-base: 1.5;

    --spacing-tiny: 0.25rem;
    --spacing-small: 0.5rem;
    --spacing-medium: 1rem;
    --spacing-large: 2rem;

    --quote-blue: #0726b0;

    --border-radius: 4px;
    --border-width: 2px;

    --blockquote-width: 8px;

    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-medium: 0 2px 6px rgba(0,0,0,0.12);

    --page-width: 21cm;
    --page-margin: 2cm;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

blockquote {
    border-left: var(--blockquote-width) solid var(--quote-blue);
    border-radius: var(--border-radius);
    margin-left: 0px;
    padding-left: 20px;
    padding-top: 5px;
    padding-bottom: 5px;
    padding-right: 20px;
    background-color: var(--quote-bg-color);
}

.page-header {
    margin-bottom: var(--spacing-large);
    text-align: center;
    border-bottom: var(--border-width) solid var(--dark-gray);
}

.page-title {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: var(--spacing-medium);
}

.page-subtitle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark-gray);
    font-size: 1em;
}

.page-author
.page-date {
    flex: 1;
}

.page-author {
    text-align: left;
}

.page-date {
    text-align: right;
}

.page-container {
    width: var(--page-width);
    max-width: 100%;
    min-height: 100vh;
    padding: var(--page-margin);
    background-color: white;
}

.panel {
    border: var(--border-width) solid var(--dark-gray);
    border-radius: var(--border-radius);
    margin: var(--spacing-medium) 0;
    overflow: hidden;
}

.panel-header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-tiny) var(--spacing-tiny);
    display: flex;
    align-items: center;
}

.panel-icon {
    margin-right: var(--spacing-small);
    font-size: 1.2em;
}

.panel-title {
    margin: 0;
    text-align: center;
    font-size: 1.1em;
}

.panel-content {
    padding: var(--spacing-medium);
}

.panel-info {
    border-color: var(--blue);
}

.panel-info .panel-header {
    background-color: var(--blue);
}

.panel-warning {
    border-color: var(--pink);
}

.panel-warning .panel-header {
    background-color: var(--pink);
}

.panel-success {
    border-color: var(--green);
}

.panel-success .panel-header {
    background-color: var(--green);
}

.theorem {
    border: var(--border-width) solid var(--dark-gray);
    border-radius: var(--border-radius);
    margin: var(--spacing-tiny) 0;
    overflow: hidden;
}

.theorem-content {
    padding: var(--spacing-medium);
    font-family: "Latin Modern";
    font-size: 20px;
}

.theorem-title {
    font-size: 20px;
}

.proof {
    margin: var(--spacing-medium);
    font-family: "Latin Modern";
    font-size: 20px;
}

.proof-qed {
    text-align: right;
    font-size: 32px;
}

.highlight-yellow {
    background-color: #FDBE49;
    font-weight: bold;
}

.highlight-green {
    background-color: #5DC080;
    font-weight: bold;
}

.highlight-blue {
    background-color: #3AB9CF;
    font-weight: bold;
}

.highlight-pink {
    background-color: #F96269;
    font-weight: bold;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
}

.layout {
    display: flex;
    gap: var(--spacing-medium);
    margin: var(--spacing-medium) 0;
    paddingL: var(--spacing-medium);
}

.layout>* {
    flex: 1;
}

.layout-center {
    align-items: center;
    justify-content: center;
    text-align: left;
}

.divider {
    border: none;
    border-top: 2px solid var(--dark-gray);
    margin: var(--spacing-large) 0;
}

.page-content h1:not(.panel-title),
.page-content h2:not(.panel-title),
.page-content h3:not(.panel-title),
.page-content h4:not(.panel-title),
.page-content h5:not(.panel-title),
.page-content h6:not(.panel-title) {
    border-left: 4px solid var(--raisin-black);
    padding-left: var(--spacing-tiny);
    margin-top: var(--spacing-large);
    margin-bottom: var(--spacing-medium);
}

.page-content h1:not(.panel-title) {
    border-left-width: 6px;
}

.page-content h2:not(.panel-title) {
    border-left-width: 5px;
}

.page-content h3:not(.panel-title) {
    border-left-width: 4px;
}

.page-content h4:not(.panel-title) {
    border-left-width: 3px;
}

.page-content h5:not(.panel-title),
.page-content h6:not(.panel-title) {
    border-left-width: 2px;
}