/* RESET: Remove default spacing. This is applied to all elements in the webpage. */
* {
    margin:  0;
    padding: 0;
    box-sizing: border-box;
}

/* COLOR PALETTE */
:root {
    --upf: #C8102E;
    --black: #000000;
    --white: #ffffff;
    --castanya: #b44548;
    --brick: #bd817e;
    --lino: #fff4f3;
    --pale: #f3eed9;
    --dev: transparent;
    --page-width: 960px;
}

:root.dev-on {
    --dev: #FFEE8C;
}

/* BASE STYLES */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background-color: var(--pale);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
}

h1 img, h2 img, h3 img {
    vertical-align: middle;
}

h1 a, h2 a, h3 a, h4 a, h5 a, h6 a {
    font-weight: inherit;
}

p {
    margin-bottom: 1rem;
}

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.35rem;
}

a {
    color: inherit;
    text-decoration: none;
    font-weight: 600;
}

a:hover {
    text-shadow: 0 0 1px;
    text-decoration: none;
}

.dev-toggle {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 999;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    border-radius: 6px;
    border: 1px solid #444;
    background: #111;
    color: #fff;
    cursor: pointer;
}

.dev-toggle:hover {
    background: #222;
}

.profile-img {
    max-width: clamp(100px, 50vw, 300px);
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
    margin: 0 auto;
}

.video-embed {
    width: 100%;
    max-width: 560px;
    aspect-ratio: 16 / 9;
    height: auto;
    display: block;
    margin: 0 auto;
    border: 0;
    margin-bottom: 1rem;
}

.img-wrap {
    float: right;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    max-width: 300px;
}

.img-wrap img {
    display: block;
    width: 100%;
    height: auto;
}

@media (max-width: 960px) {
    .img-wrap {
        float: none;
        display: block;
        margin-left: auto;
        margin-right: auto;
        max-width: 200px;
    }
}

/* NAVBAR */
:root {
    --navbar-height: 3rem;
}

.navbar {
    top: 0;
    width: 100%;
    background-color: var(--castanya);
    padding: 0rem 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    align-content: center;
    column-gap: 2rem;
    row-gap: 0.5rem;
    min-height: var(--navbar-height);
    border: 1px solid var(--dev);
    z-index: 100;
}

.navbar a {
    color: var(--white);
    font-weight: 600;
    padding: 0.5rem 1rem;
    transition: background-color 0.2s;
}

.navbar a:hover {
    text-shadow: 0 0 1px var(--lino);
    text-decoration: none;
}

.nav-divider {
    height: 1px;
    width: 50%;
    margin: 0rem auto 0;
    background-color: var(--lino);
    opacity: 1;
}

/* NEWS LIST */
.news-list {
    border-top: 1px solid var(--lino);
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.news-item {
    display: grid;
    grid-template-columns: 25% 1fr;
    gap: 2rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--lino);
}

.news-date {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 1rem;
}

.news-content {
    font-size: 1rem;
}

.news-content p {
    margin-bottom: 0rem;
}

@media (max-width: 960px) {
    .news-item {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }
}

/* CV LIST */
.cv-list {
    border-top: 1px solid var(--brick);
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.cv-item {
    display: grid;
    grid-template-columns: 25% 1fr;
    gap: 2rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--brick);
}

.cv-date {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 1rem;
}

.cv-content {
    font-size: 1rem;
}

.cv-content p {
    margin-bottom: 0rem;
}

@media (max-width: 960px) {
    .cv-item {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }
}

/* PAPERS LIST */
.papers-list {
    border-top: 1px solid var(--brick);
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.papers-item {
    display: grid;
    grid-template-columns: 10% 1fr;
    gap: 2rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--brick);
}

.papers-date {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 1rem;
}

.papers-content {
    font-size: 1rem;
}

.papers-content p {
    margin-bottom: 0rem;
}

@media (max-width: 960px) {
    .papers-item {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }
}

/* PROJECT CARDS */
.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.project-card {
    position: relative;
    aspect-ratio: 1 / 1;
    border-radius: 10px;
    overflow: hidden;
    background-color: var(--brick);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    color: #ffffff;
}

.project-card:hover {
    transform: translateY(-2px);
}

.project-card-overlay {
    position: relative;
    padding: 1rem;
}

.project-card-overlay p {
    font-weight: normal;
}

@media (max-width: 960px) {
    .project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .project-grid {
        grid-template-columns: 1fr;
    }
}

/* BOX ENVIRONMENTS */
.box {
    width: 100%;
    max-width: var(--page-width);
    margin: 0rem auto;
    padding: 2rem;
    border: 1px solid var(--dev);
    background-color: transparent;
}

.box-split {
    display: flex;
    flex-direction: row;
    gap: 2rem;
}

.box-col {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--dev);
}

.box-col-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

@media (min-width: 1920px) {
    .box {
        max-width: 50vw;
    }
}

@media (max-width: 540px) {
    .box-split {
        flex-direction: column;
    }
}

@media (max-width: 960px) {
    .box {
        padding: 2rem 1rem;
    }
}

/* SECTION ENVIRONMENTS */
.section {
    min-height: 50vh;
    border-bottom: 1px solid var(--dev);
}

.section-fullscreen {
    min-height: 100vh;
}

.section-vcentered {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.section-castanya {
    background-color: var(--castanya);
    color: #ffffff;
}

.section-upf {
    background-color: var(--upf);
    color: #ffffff;
}

.section-brick {
    background-color: var(--brick);
    color: #ffffff;
}

.section-lino {
    background-color: var(--lino);
    color: #000000;
}

.section-pale {
    background-color: var(--pale);
    color: #000000;
}

.section-white {
    background-color: var(--white);
    color: #000000;
}

/* BUTTON STYLES */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: 1px solid currentColor;
    border-radius: 4px;
    background-color: transparent;
    color: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.button:hover {
    background-color: rgba(0, 0, 0, 0.08);
}

.button:active {
    background-color: rgba(0, 0, 0, 0.12);
}

/* BIBTEX BOX */
.bibtex-box {
    background-color: var(--brick);
    max-width: 720px;
    overflow-x: auto;
    padding: 1em;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    position: relative;
}

.bibtex-box:hover {
    background-color: #c78d8a;
}

.bibtex-box:active {
    background-color: #aa7572;
}

.bibtex-box pre {
    color: var(--lino);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

/* PAPER-SPECIFIC STYLES */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin: 1.5rem 0;
}

.button-brick {
    background-color: var(--brick);
    border-color: var(--brick);
    color: var(--white);
    border-radius: 4px;
}

.button-brick:hover {
    background-color: #c78d8a;
}

.button-castanya {
    background-color: var(--castanya);
    border-color: var(--castanya);
    color: var(--white);
    border-radius: 4px;
}

.button-castanya:hover {
    background-color: #b44548;
}

.button-lino {
    background-color: var(--lino);
    border-color: var(--black);
    color: var(--black);
    border-radius: 4px;
}

.button-lino:hover {
    background-color: var(--white);
}

.logo-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 1.5rem;
}

.logo-row img {
    max-height: 60px;
    width: auto;
}

.logo-white {
    filter: brightness(0) invert(1);
}

.paper-authors {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.paper-authors a {
    font-weight: 700;
}

.paper-affiliation {
    font-size: 0.95rem;
    opacity: 0.85;
}

.paper-abstract {
    font-size: 1.05rem;
    line-height: 1.7;
}

.section-number {
    display: inline-block;
    font-weight: 700;
}

figure {
    margin: 1.5rem 0;
    text-align: center;
}

figure img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

figcaption {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.85;
    font-style: italic;
}

.audio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.audio-card {
    background-color: rgba(0, 0, 0, 0.08);
    border-radius: 6px;
    padding: 1rem;
    text-align: center;
}

.audio-card p {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.audio-card audio {
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

th {
    font-weight: 700;
}

.table-wrap {
    overflow-x: auto;
}

details {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.04);
}

details summary {
    cursor: pointer;
    font-weight: 700;
}

details[open] summary {
    margin-bottom: 0.75rem;
}

hr {
    border: 0;
    height: 1px;
    background-color: currentColor;
    opacity: 0.15;
    margin: 1.5rem 0;
}

/* AUDIO DEMO STYLES */
#demo img[src*="shields.io"],
#demo img[src*="colab-badge"] {
    height: 32px;
    width: auto;
}
.emoji-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 1.5rem 0;
}

.emoji-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.6rem;
    border: 2px solid transparent;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.05);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    min-width: 56px;
}

.emoji-btn:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.emoji-btn.active {
    border-color: var(--castanya);
    background: rgba(180, 69, 72, 0.12);
    box-shadow: 0 0 0 1px var(--castanya);
}

.emoji-btn .emoji {
    font-size: 1.6rem;
    line-height: 1;
}

.emoji-btn .emoji-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: capitalize;
    opacity: 0.7;
    white-space: nowrap;
}

.emoji-btn.active .emoji-label {
    opacity: 1;
    color: var(--castanya);
}

.audio-pair {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.audio-slot {
    background: rgba(0, 0, 0, 0.04);
    border-radius: 8px;
    padding: 1rem;
}

.audio-slot .audio-label {
    display: block;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    opacity: 0.6;
    margin-bottom: 0.5rem;
}

.audio-slot audio {
    width: 100%;
    border-radius: 4px;
}

.audio-slot.interp-player.invalid {
    outline: 2px dashed var(--castanya);
    outline-offset: 2px;
}

.interp-selectors {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin: 1rem 0;
}

.interp-selector-group {
    flex: 1;
    min-width: 0;
}

.interp-selector-label {
    display: block;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.5;
    margin-bottom: 0.5rem;
    text-align: center;
}

.interp-arrow {
    font-size: 2rem;
    font-weight: 700;
    color: var(--castanya);
    align-self: center;
    padding-top: 1.5rem;
    flex-shrink: 0;
}

@media (max-width: 700px) {
    .interp-selectors {
        flex-direction: column;
        align-items: stretch;
    }

    .interp-arrow {
        text-align: center;
        padding: 0;
        transform: rotate(90deg);
    }
}

@media (max-width: 600px) {
    .emoji-btn {
        min-width: 44px;
        padding: 0.4rem;
    }

    .emoji-btn .emoji {
        font-size: 1.3rem;
    }

    .emoji-btn .emoji-label {
        font-size: 0.55rem;
    }
}