/* === PRESENTATION === */
.presentation {
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: var(--border-1) solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    box-shadow: var(--shadow-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Títols */
.presentation h1 {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-6xl));
    font-weight: 300;
    line-height: var(--space-2xl);
    margin-bottom: var(--space-sm);
    background: var(--gradient-primary-secondary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px var(--primary-opacity-50);
    animation: glow 3s ease-in-out infinite alternate;
}

.presentation h2 {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Container imatge i info */
.presentation > div {
    display: grid;
    grid-template-columns: auto auto;
    gap: var(--space-2xl);
    align-items: center;
    margin-top: var(--space-2xl);
}

/* Figura amb imatge */
.presentation figure {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.presentation figure img {
    width: 280px;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-full);
    border: var(--border-4) solid var(--primary);
    box-shadow: 
        0 0 0 4px var(--primary-opacity-20),
        var(--shadow-image),
        0 0 60px var(--primary-opacity-30);
    transition: var(--transition);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.presentation figure img:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 
        0 0 0 6px var(--primary-opacity-30),
        var(--shadow-image-hover),
        0 0 80px var(--primary-opacity-50);
}

.presentation figcaption {
    margin-top: var(--space-md);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    font-style: italic;
}

/* Info container */
.info-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    text-align: left;
}

/* Location */
.location {
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: transparent;
    border-radius: var(--radius-xl);
    border: var(--border-1) solid var(--glass-border);
    transition: var(--transition);
}

.location::before {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: -1;
    background: var(--bg-card-hover);
}

.location:hover::before {
    transform: translateY(0);
}

.location:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.location span {
    display: flex;
    align-items: center;
}

.location span:nth-child(2) {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-primary);
    flex-grow: 1;
}

/* Status */
.status {
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: transparent;
    border-radius: var(--radius-xl);
    border: var(--border-1) solid var(--primary);
    transition: var(--transition);
}

.status::before {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: -1;
    background: var(--gradient-primary-secondary-dark);
}

.status:hover::before {
    transform: translateY(0);
}

.status:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    border-color: transparent;
}

.status span:nth-child(2) {
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    flex-grow: 1;
}

/* SVG Icons */
.svg-location {
    width: 24px;
    height: auto;
    fill: var(--secondary);
}

.svg-flag-uk {
    width: 32px;
    height: auto;
}

.svg-student {
    width: 32px;
    height: auto;
    fill: var(--secondary);
}

.svg-imperial {
    width: 120px;
    height: auto;
    fill: var(--imperial);
}

/* === RESPONSIVE === */
/* Tablets */
@media (max-width: 968px) {
    .presentation {
        padding: var(--space-2xl);
    }

    .presentation > div {
        gap: var(--space-xl);
    }

    .presentation figure img {
        width: 240px;
        height: 240px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .presentation {
        padding: var(--space-xl);
    }

    .presentation > div {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }

    .info-container {
        text-align: center;
    }

    .location, .status {
        justify-content: center;
        flex-wrap: wrap;
    }

    .status span:nth-child(2) {
        text-align: left;
    }

    .presentation figure img {
        width: 200px;
        height: 200px;
    }

    .svg-imperial {
        width: 100px;
        height: 14px;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .presentation {
        padding: var(--space-lg);
    }

    .presentation h2 {
        margin-bottom: var(--space-xl);
    }

    .location, .status {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    .location span:nth-child(2),
    .status span:nth-child(2) {
        flex-grow: 0;
    }

    .presentation figure img {
        width: 180px;
        height: 180px;
    }

    .svg-imperial {
        width: 80px;
        height: 12px;
    }
}

/* Animation d'entrada */
.presentation {
    animation: slideInUp 1s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Efectes de parallax subtils */
.presentation::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle, var(--primary) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveStars 20s linear infinite;
    z-index: -1;
}

@keyframes moveStars {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}



/* === ABOUT ARTICLE === */
.about-article {
    background: var(--glass-bg);
    border: var(--border-1) solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    box-shadow: var(--shadow-light);
    background: 
        radial-gradient(circle at 25% 25%, var(--primary-opacity-10) 0%, transparent 70%),
        radial-gradient(circle at 75% 75%, var(--secondary-opacity-10) 0%, transparent 70%),
        radial-gradient(circle at 50% 50%, var(--tertiary-opacity-10) 0%, transparent 70%);
    position: relative;
    overflow: hidden;
}

.intro-paragraph {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    border-left: var(--border-4) solid var(--primary);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-card);
    position: relative;
}

.content-paragraph {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-loose);
    margin-bottom: var(--space-lg);
    text-align: justify;
    color: var(--text-secondary);
}

/* === ENLLAÇOS SENSE SVG === */
.university-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    padding: var(--space-xxs) var(--space-xs);
    border-radius: var(--radius-sm);
    background: var(--primary-opacity-10);
    transition: var(--transition);
}

.university-link:hover {
    background: var(--primary);
    color: var(--bg-primary);
    transform: translateY(-1px);
}

.project-link {
    color: var(--secondary);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-style: italic;
    padding: var(--space-xxs) var(--space-xs);
    border-radius: var(--radius-sm);
    background: var(--secondary-opacity-10);
    transition: var(--transition);
}

.project-link:hover {
    background: var(--secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.person-link {
    color: var(--tertiary);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    padding: var(--space-xxs) var(--space-xs);
    border-radius: var(--radius-sm);
    background: var(--tertiary-opacity-10);
    transition: var(--transition);
}

.person-link:hover {
    background: var(--tertiary);
    color: var(--bg-primary);
    transform: translateY(-1px);
}

/* === HOBBIES === */
.hobbies-section {
    background: var(--tertiary-opacity-20);
    color: var(--text-primary);
    padding: var(--space-xl);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-tertiary);
    position: relative;
    transition: var(--transition);
    min-height: 300px;
}

.hobbies-section img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-2xl);
    object-fit: cover;
    z-index: -1;
    opacity: 0.5;
    transition: var(--transition);
}

.hobbies-section div {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
}

.hobbies-section div h3 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-light);
    margin: 0 var(--space-xs) var(--space-md) var(--space-xs);
}

.hobbies-section div svg {
    width: 45px;
    height: auto;
    flex-shrink: 0;
    fill: var(--text-primary);
    margin-bottom: var(--space-md);
    transition: var(--transition);
}

.hobbies-section:hover {
    color: var(--white-opacity-60);
}

.hobbies-section:hover img {
    opacity: 1;
}

.hobbies-section:hover div svg {
    fill: var(--white-opacity-60);
}

.hobbies-section p {
    font-size: var(--font-size-lg);
    opacity: 0.95;
}


/* === CONTACT === */
.contact-section {
    background:
        radial-gradient(circle at 30% 30%, var(--primary-opacity-10) 0%, transparent 60%),
        radial-gradient(circle at 70% 70%, var(--secondary-opacity-10) 0%, transparent 60%);
    border: var(--border-1) solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-light);
    text-align: center;
}

.contact-intro {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
}

.contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-semibold);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    background: transparent;
}

.contact-email { border: var(--border-1) solid var(--text-primary); color: var(--text-primary); }
.contact-telegram { border: var(--border-1) solid var(--color-telegram); color: var(--color-telegram); }
.contact-whatsapp { border: var(--border-1) solid var(--color-whatsapp); color: var(--color-whatsapp); }
.contact-github { border: var(--border-1) solid var(--text-primary); color: var(--text-primary); }
.contact-linkedin { border: var(--border-1) solid var(--color-linkedin); color: var(--color-linkedin); }

.contact::before {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: -1;
}

.contact-email::before { background: var(--text-primary); }
.contact-telegram::before { background: var(--color-telegram); }
.contact-whatsapp::before { background: var(--color-whatsapp); }
.contact-github::before { background: var(--color-github); }
.contact-linkedin::before { background: var(--color-linkedin); }

.contact:hover::before {
    transform: translateY(0);
}

.contact:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
    color: var(--text-primary);
}

.contact-email:hover {
    color: var(--color-email);
}

.contact-github:hover {
    border-color: var(--color-github);
}

.email-icon, .telegram-icon, .whatsapp-icon, .github-icon, .linkedin-icon {
    width: 30px;
    height: auto;
}

.email-icon {
    fill: var(--text-primary);
}

.telegram-icon path:first-child {
    fill: var(--color-telegram);
}

.telegram-icon path:last-child {
    fill: var(--text-primary);
}

.telegram-icon path {
    fill: var(--text-primary);
}

.whatsapp-icon {
    fill: var(--color-whatsapp);
}

.github-icon {
    fill: var(--text-primary);
}

.linkedin-icon {
    fill: var(--color-linkedin);
}

.contact-email:hover .email-icon {
    fill: var(--color-email);
}

.contact-telegram:hover .telegram-icon,
.contact-whatsapp:hover .whatsapp-icon,
.contact-github:hover .github-icon,
.contact-linkedin:hover .linkedin-icon {
    fill: var(--text-primary);
}

.contact-telegram:hover .telegram-icon path:first-child {
    fill: var(--text-primary);
}

.contact-telegram:hover .telegram-icon path:last-child {
    fill: var(--color-telegram);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .about-article {
        padding: var(--space-xl);
    }

    .intro-paragraph {
        font-size: var(--font-size-lg);
    }

    .content-paragraph {
        font-size: var(--font-size-base);
        text-align: left;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .about-article {
        padding: var(--space-lg);
    }

    .hobbies-section div svg {
        width: 30px;
        height: auto;
    }
}

/* === ANIMACIONS === */
.about-article { animation: slideInUp 0.8s ease-out; }
.hobbies-section { animation: slideInUp 1s ease-out 0.2s both; }
.contact-section { animation: slideInUp 1s ease-out 0.4s both; }

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}