/* ===================================
   Fonts definitios
   =================================== */
@font-face {
    font-family: "Playfair Display";
    src: url("../fonts/PlayfairDisplay.ttf");
}

@font-face {
    font-family: "Brannboll Connect";
    src: url("../fonts/BrannbollConnect.ttf");
}

@font-face {
    font-family: "Alumni Sans";
    src: url("../fonts/AlumniSans.ttf");
}

/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    --primary-color: #072436;
    --background-color: #F8F9FA;
    --white: #FFFFFF;
    --text-secondary: #6C757D;
    --accent-color: #0D6EFD;
    --border-color: #E9ECEF;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-alumni: 'Alumni Sans', sans-serif;
    --font-playfair: 'Playfair Display', serif;
    --font-brannboll: 'Brannboll Connect', cursive;

    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --header-height: 80px;

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

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

/* ===================================
   Breadcrumb Styles
   =================================== */
.breadcrumb {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '→';
    margin-left: 0.5rem;
    color: var(--text-secondary);
}

.breadcrumb-list a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

.breadcrumb-list li[aria-current="page"] {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===================================
   Research Page Styles
   =================================== */
.research-hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.research-section {
    margin-bottom: 4rem;
}

.research-header {
    text-align: center;
    margin-bottom: 3rem;
}

.research-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.qt_logo.large {
    font-size: 3rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.research-content {
    max-width: 1000px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.content-main h3 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-main h3:first-child {
    margin-top: 0;
}

.research-list {
    list-style: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.research-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.research-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-box {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.info-box h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.info-box ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-box li {
    padding: 0.3rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1rem;
}

.info-box li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.info-box p {
    margin-bottom: 0.5rem;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.metric-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem 1rem;
    text-align: center;
}

.metric-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Student Areas */
.student-areas {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.area-item {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.area-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.area-item p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Enhanced Math Container for Research Page */
.research-content .math-container {
    margin: 2rem 0;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
}

/* ===================================
   About Page Styles
   =================================== */
.profile-section {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
    margin-bottom: 3rem;
}

.profile-image {
    text-align: center;
}

.profile-placeholder {
    width: 250px;
    height: 250px;
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 4rem;
    color: var(--primary-color);
}

.profile-info h1 {
    margin-bottom: 0.5rem;
}

.profile-title {
    font-size: 1.2rem;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--accent-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-left: 1rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 1.5rem;
    width: 12px;
    height: 12px;
    background-color: var(--accent-color);
    border-radius: 50%;
    border: 3px solid var(--white);
}

.timeline-year {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* ===================================
   Contact Page Styles
   =================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-form {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-item p {
    margin-bottom: 0;
}

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* ===================================
   Responsive Design for New Pages
   =================================== */
@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .content-sidebar {
        order: -1;
    }

    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

    .qt_logo.large {
        font-size: 2.5rem;
    }

    .profile-section {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .timeline {
        padding-left: 1.5rem;
    }

    .timeline-item {
        margin-left: 0.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .breadcrumb-list {
        font-size: 0.9rem;
    }
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* ===================================
   Header Styles
   =================================== */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(7, 36, 54, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: opacity var(--transition-base);
}

.logo:hover {
    opacity: 0.8;
}

.logo-svg {
    width: 40px;
    height: 40px;
    margin-right: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    margin-right: 12px;
    background-color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
}

.logo-text .q {
    font-family: var(--font-alumni);
    font-size: 1.3em;
}

.logo-text .ubit {
    font-family: var(--font-playfair);
}

.logo-text .alent {
    font-family: var(--font-brannboll);
    font-size: 0.9em;
}

/* Navigation Styles */
.nav {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 4px 20px rgba(7, 36, 54, 0.1);
    padding: 1rem 0;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav .nav {
    flex-direction: column;
    gap: 0;
}

.mobile-nav .nav-link {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: block;
}

/* ===================================
   Button Styles
   =================================== */
.btn {
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #0a2d42;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ===================================
   Section Styles
   =================================== */
.section {
    padding: var(--section-padding);
}

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

.section-gray {
    background-color: var(--background-color);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Layout Styles
   =================================== */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.image-column {
    display: flex;
    justify-content: center;
}

.quantum-visual {
    background-color: var(--background-color);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    width: 100%;
    max-width: 300px;
}

.quantum-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ===================================
   Card Styles
   =================================== */
.card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(7, 36, 54, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(7, 36, 54, 0.15);
}

.card-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
    display: inline-block;
    transition: color var(--transition-base);
}

.card-link:hover {
    color: var(--primary-color);
}

/* Qt Logo Styles */
.qt_logo {
    list-style: none;
    display: flex;
    margin: 0 0 1rem 0;
    padding: 0;
    font-size: 2rem;
    font-weight: 700;
}

.qt_logo li:first-child::before {
    content: "\7C";
}

.qt_logo li:last-child::after {
    font-size: 0.8em;
    content: '\27E9';
}

.qt_logo li:first-child {
    font-family: var(--font-alumni);
    color: var(--primary-color);
    padding-right: 0.1rem;
}

.qt_logo li:last-child {
    font-family: var(--font-brannboll);
    color: var(--primary-color);
}

/* ===================================
   Math Section Styles
   =================================== */
.math-section {
    text-align: center;
}

.math-content {
    max-width: 800px;
    margin: 0 auto;
}

.math-container {
    background-color: var(--background-color);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-radius: 4px;
    font-family: 'Computer Modern', 'Latin Modern Math', monospace;
    text-align: left;
}

.math-container p {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.math-container p:last-child {
    margin-bottom: 0;
}

/* ===================================
   CTA Section Styles
   =================================== */
.cta-section {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* ===================================
   Footer Styles
   =================================== */
.footer {
    background-color: var(--primary-color);
    color: var(--background-color);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p {
    color: var(--background-color);
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--background-color);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-legal {
    padding-bottom: 0rem;
    text-align: right;
    color: var(--background-color);
}

.footer-legal a {
    color: var(--background-color);
    text-decoration: none;
    font-size: 0.8rem;
    transition: color var(--transition-base);
}

.footer-bottom {
    border-top: 1px solid rgba(248, 249, 250, 0.2);
    padding-top: 1rem;
    text-align: center;
    color: var(--background-color);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .section {
        padding: 60px 0;
    }

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

/* ===================================
   FAQ Styles
   =================================== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.faq-item {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.faq-item h3 {
    color: var(--accent-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.faq-item h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.faq-item p {
    margin-bottom: 0;
    line-height: 1.6;
}

/* ===================================
   Select Dropdown Styles
   =================================== */
select.form-input {
    background-color: var(--white);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1em;
    appearance: none;
    cursor: pointer;
}

select.form-input:focus {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230D6EFD' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
}

/* ===================================
   Responsive Design Updates
   =================================== */
@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .faq-item {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .contact-form {
        padding: 1.5rem;
    }

    .form-input,
    .form-textarea {
        font-size: 16px;
        /* Prevents zoom on iOS */
    }
}

/* ===================================
   Animations and Effects
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.mobile-menu-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {

    .header,
    .footer,
    .mobile-menu-toggle,
    .mobile-nav {
        display: none;
    }

    .section {
        padding: 1rem 0;
    }

    body {
        background-color: white;
        color: black;
    }
}

/* Cookie Banner Styles */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    border-top: 3px solid var(--primary-color);
    box-shadow: 0 -2px 10px rgba(7, 36, 54, 0.15);
    z-index: 9999;
    padding: 1.5rem;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cookie-banner-text h4 {
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.cookie-banner-text p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.4;
}

.cookie-banner-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.cookie-banner-actions .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.cookie-policy-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    white-space: nowrap;
}

.cookie-policy-link:hover {
    text-decoration: underline;
}

/* Responsive Cookie Banner */
@media (max-width: 768px) {
    .cookie-banner {
        padding: 1rem;
    }

    .cookie-banner-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .cookie-banner-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.8rem;
    }

    .cookie-banner-actions .btn {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .cookie-banner-text h4 {
        font-size: 1rem;
    }

    .cookie-banner-text p {
        font-size: 0.9rem;
    }

    .cookie-banner-actions .btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
}