/* --------------------------------------------------
   1. MASTER TYPOGRAPHY & SCALING CONTROL
   -------------------------------------------------- */
:root {
    /* Changing this single variable scales all text proportionally across the site */
    --base-font-size: 18px;
}

/* Ensure box-sizing counts padding towards total width */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body,
html {
    width: 100%;
    height: 100%;
    background: #ffffff;
    margin: 0;
}

/* --------------------------------------------------
   2. NAVIGATION
   -------------------------------------------------- */
.topnav {
    background-color: rgb(255, 255, 255);
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center; /* keep all items vertically centered */
    gap: 1.5vw; /* space between nav items */
    padding: 0.5vw;
}

.topnav a {
    padding: 0.25vw 0.75vw;
    font-size: calc(var(--base-font-size) * 1.11); /* ~20px at base 18px */
    color: rgb(216, 216, 216);
    font-family: "Nanum Myeongjo";
    transform: scaleY(1);
    transform: scaleX(1);
    text-decoration: none;
}

.topnav a:hover {
    color: rgb(0, 0, 0);
}

.topnav a.active {
    color: rgb(0, 0, 0);
    text-decoration: underline;
}

/* Dropdown (Works) */
.dropdown {
    position: relative;
    display: inline-block;
    display: flex;
    align-items: center; /* center the button within the dropdown wrapper */
}

.dropdown .dropbtn {
    padding: 0.25vw 0.75vw;
    font-size: calc(var(--base-font-size) * 1.11); /* ~20px at base 18px */
    color: rgb(216, 216, 216);
    font-family: "Nanum Myeongjo";
    text-decoration: none;
    cursor: pointer;
}

.dropdown:hover .dropbtn {
    color: rgb(0, 0, 0);
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgb(255, 255, 255);
    min-width: 120px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.dropdown-content a {
    display: block;
    padding: 0.5vw 1vw;
    text-align: left;
    white-space: nowrap;
}

.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content {
    display: block;
}

/* --------------------------------------------------
   3. LAYOUT & CONTAINERS
   -------------------------------------------------- */
#content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 60px;
    overflow-x: hidden; /* Safety net against horizontal page overflow */
}

/* Main Flex Container centered on screen.
   NOTE: this is a plain block container (not flex) so that floated
   images can have following paragraphs wrap around them. The .cv
   sections inside are flex themselves, and centered images/iframes
   use margin: 0 auto, so neither depends on this being flex.
   position: relative makes it the positioning context for images
   that are absolutely placed into the page margins (see Affection). */
.flex-container {
    display: block;
    position: relative;
    background-color: rgb(255, 255, 255);

    /* Responsive width bounds */
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
}

.flex-container > .cv {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;

    /* Fill parent container width cleanly */
    width: 100%;
    max-width: 100%;
    height: auto;
    padding: 0.5vw;
}

/* --------------------------------------------------
   4. GLOBAL TYPOGRAPHY
   -------------------------------------------------- */
h1 {
    font-size: calc(var(--base-font-size) * 1.9); /* ~34px at base 18px */
    width: fit-content;
    height: auto;
    padding: 0px 0.25vw;
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    transform: scaleY(1);
    text-decoration: none;
    margin: 1em 0 0.5em 0; /* space above, tighter below */
}

h1.center {
    width: 100%;
    align-self: center;
}

h2 {
    font-size: calc(var(--base-font-size) * 1.55); /* ~28px at base 18px */
    width: fit-content;
    height: auto;
    padding: 0px 0.25vw;
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    transform: scaleY(1);
    text-decoration: none;
    margin: 1em 0 0.5em 0; /* space above, tighter below */
}

h2.center {
    width: 100%;
    align-self: center;
}

h3 {
    font-size: calc(var(--base-font-size) * 1.22); /* ~22px at base 18px */
    width: fit-content;
    height: auto;
    padding: 0px 0.25vw;
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    transform: scaleY(1);
    text-decoration: none;
    margin: 1em 0 0.5em 0; /* space above, tighter below */
}

h3.center {
    width: 100%;
    align-self: center;
}

p {
    font-size: var(--base-font-size); /* 18px at base 18px */
    width: auto;
    padding: 0px 5px;
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    transform: scale(1, 1);
    text-decoration: none;
    text-align: left;
    line-height: 1.5;
    margin: 0 0 1em 0; /* space below only, so a subtitle sits tight under a heading */
}

blockquote {
    margin: 0 0 1em 0;
    padding: 0.5em 1em;
    border-left: 3px solid rgb(216, 216, 216);
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    font-style: italic;
    line-height: 1.5;
}

/* Poetry / line-art: a block that preserves every line break and
   blank line from the Markdown source, but keeps the site's font and
   styling instead of the default monospace. The element must be <pre>
   so pandoc passes it through verbatim (a <div> would collapse the
   newlines); the class name is simply `poem`. */
.poem {
    font-family: "Nanum Myeongjo";
    font-size: var(--base-font-size);
    color: rgb(0, 0, 0);
    line-height: 1.5;
    white-space: pre-wrap; /* keep exact line breaks & blank lines, but wrap long lines */
    margin: 0 0 1em 0;
    padding: 0 5px;
}

blockquote p {
    padding: 0;
    font-style: italic;
}

blockquote footer,
blockquote p:last-child {
    font-style: normal;
    font-size: calc(var(--base-font-size) * 0.9);
    color: rgb(120, 120, 120);
}

img {
    width: auto;
    height: auto;
    max-width: 100%; /* never overflow the container */
    padding: 0.5vw;
}

/* Center images/iframes that sit directly in the main flex container
   (e.g. the front-page photo). Images are wrapped in <p> by pandoc;
   raw iframes are direct children. */
.flex-container > p > img,
.flex-container > iframe {
    display: block; /* inline elements ignore auto margins */
    margin: 0 auto;
}

/* Reusable width utilities for images and iframes. Apply via `{.w-XX}`
   in the Markdown for images, or `class="w-XX"` on a raw iframe.
   Because these are classes (not inline styles), they can be overridden
   in the mobile media query below. */
.flex-container > p > img.w-25,
.flex-container > iframe.w-25 {
    width: 25%;
}
.flex-container > p > img.w-50,
.flex-container > iframe.w-50 {
    width: 50%;
}
.flex-container > p > img.w-75,
.flex-container > iframe.w-75 {
    width: 75%;
}
.flex-container > p > img.w-80,
.flex-container > iframe.w-80 {
    width: 80%;
}
.flex-container > p > img.w-100,
.flex-container > iframe.w-100 {
    width: 100%;
}

/* Float an image to the right so following text wraps around it.
   Overrides the centered margin from the base rule above. */
.flex-container > p > img.float-right {
    float: right;
    margin: 0 0 1em 1em;
}

/* --------------------------------------------------
   5. CV SECTION ELEMENTS
   -------------------------------------------------- */

.center {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Center text content (paragraphs, lists, etc.) inside a block. */
.center-text {
    text-align: center;
}

/* The global `p` rule sets text-align: left on the element itself, which
   would override the inherited centering above. Target the children. */
.center-text p,
.center-text li {
    text-align: center;
}

#footer {
    text-align: center;
    bottom: 0;
    width: 100%;
    height: 30px;
}

/* --------------------------------------------------
   6. MOBILE RESPONSIVE OVERRIDES
   -------------------------------------------------- */
@media only screen and (max-width: 480px) {
    :root {
        /* Scales every heading, entry, and body text down proportionally on mobile */
        --base-font-size: 15px;
    }

    .flex-container {
        width: 100%;
        max-width: 100%;
        padding: 0 16px; /* Smooth edge gutters */
    }

    .flex-container > .cv {
        padding: 0;
    }

    /* On small screens the container is much narrower, so images/iframes
       sized with the .w-* utilities become too small. Scale them up. */
    .flex-container > p > img.w-25,
    .flex-container > iframe.w-25 {
        width: 50%;
    }
    .flex-container > p > img.w-50,
    .flex-container > iframe.w-50 {
        width: 80%;
    }
    .flex-container > p > img.w-75,
    .flex-container > iframe.w-75 {
        width: 90%;
    }
    .flex-container > p > img.w-80,
    .flex-container > iframe.w-80 {
        width: 95%;
    }
    .flex-container > p > img.w-100,
    .flex-container > iframe.w-100 {
        width: 100%;
    }

    /* Un-float images on mobile so they stack centered instead of
       wrapping text around them in a narrow column. */
    .flex-container > p > img.float-right {
        float: none;
        display: block;
        margin: 0 auto;
    }

    /* Nav: vw-based spacing collapses on narrow screens, so use fixed
       pixel gaps and padding to keep items from squishing together. */
    .topnav {
        gap: 12px;
        padding: 8px 0;
    }

    .topnav a,
    .dropdown .dropbtn {
        padding: 4px 6px;
    }
}

/* --------------------------------------------------
   7. LISTS
   -------------------------------------------------- */
ul {
    font-size: var(--base-font-size);
    color: rgb(0, 0, 0);
    font-family: "Nanum Myeongjo";
    line-height: 1.5;
    text-align: left;
    margin: 0;
    padding: 0 5px 0 25px;
    list-style-type: circle; /* bullet marker: disc | circle | square | none | "…" */
}

li {
    margin-bottom: 0.4em;
}

/* CV-specific: add whitespace below each list so entries read as
   distinct blocks. The generic `ul` above sets margin: 0; this only
   adds the bottom margin, inheriting everything else. */
.cv ul {
    margin-bottom: 1.5em;
}

/* --------------------------------------------------
   8. DEFINITION-LIST ENTRIES (title + right-aligned date)
   -------------------------------------------------- */
/* Pandoc renders `Term\n:   date` as a <dl>. Style it to match the
   original .entry title/date grid. */
.cv dl {
    font-size: calc(var(--base-font-size) * 1.22); /* ~22px at base 18px */
    margin: 0;
    padding: 0 0.25vw;
    font-family: "Nanum Myeongjo";
    color: rgb(0, 0, 0);
    width: 100%; /* .cv is a flex container with align-items:flex-start,
                   so children shrink to content width unless stretched */
}

.cv dl dt {
    display: inline;
    font-weight: bold;
}

.cv dl dd {
    display: inline;
    float: right;
    font-size: calc(var(--base-font-size) * 1.11); /* ~20px at base 18px */
    font-weight: normal;
    margin: 0;
    text-align: right;
}

/* The italic subtitle that follows an entry. Pandoc renders
   `*subtitle*` as <em>; style it like the original .entry-sub. */
.cv p em {
    font-style: italic;
}