:root {
    --bg-primary: #ffffff;
    --text-primary: #271111; /*#111827*/
    --text-secondary: #634b4b; /*#4b5563*/
    --accent: #eb2525; /*#2563eb*/
    --accent-hover: #d81d1d; /*#1d4ed8*/
    --nav-bg: rgba(255, 255, 255, 0.8);
    --border-colour: #ebe5e5; /*#e5e7eb*/

    --some-card-colour: #fafafa;
    --form-group-input-shadow: rgba(235, 37, 37, 0.15); /*rgba(37, 99, 235, 0.15)*/
    --hub-card-hover-shadow: rgba(235, 37, 37, 0.04); /*rgba(37, 99, 235, 0.04)*/
    --some-grey-background: #fbf9f9; /*#f9fafb*/
    --project-tags-span: #f6f3f3; /*#f3f4f6*/
    --project-card-shadow: rgba(0, 0, 0, 0.05);

    --white: #ffffff;
}

/* .dark-mode {
    --bg-primary: #1f1f1f;
    --text-primary: #e5e5e5;
    --text-secondary: #b3b3b3;
    --accent: #eb2525;
    --accent-hover: #d81d1d;
    --nav-bg: rgba(31, 31, 31, 0.8);
    --border-colour: #2c2c2c;

    --some-card-colour: #2c2c2c;
    --form-group-input-shadow: rgba(235, 37, 37, 0.15);
    --hub-card-hover-shadow: rgba(235, 37, 37, 0.04);
    --some-grey-background: #2a2a2a;
    --project-tags-span: #333333;
    --project-card-shadow: rgba(0, 0, 0, 0.05);

    --white: #ffffff;
} */



* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    interpolate-size: allow-keywords;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding-top: 70px;
}


section {
    max-width: 1000px;
    margin: 6rem auto;
    padding: 0 1.5rem;
}


section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}



/* ==========================================================================
   Nav bar 
   ========================================================================== */



.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--nav-bg);
    -webkit-backdrop-filter: blur(12px); /* For compatibility with stupid Safari */
    backdrop-filter: blur(12px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    border-bottom: 1px solid var(--border-colour);
    z-index: 1000;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-links .nav-btn {
    background: var(--accent);
    color: var(--white);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
}

.nav-links .nav-btn:hover {
    background: var(--accent-hover);
    color: var(--white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle .bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
}


@media (max-width: 768px){

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        height: calc(100vh - 70px);
        padding: 3rem 0;
        gap: 2.5rem;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        border-bottom: 1px solid var(--border-colour);
        align-items: center;
    }

    .nav-links.active {
        left: 0;
    }


    .menu-toggle.active .bar:nth-child(1) {
        transform: translate(8px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(3) {
        transform: translate(-8px) rotate(-45deg);
    }
}







/* ==========================================================================
   Hero Section Styles
   ========================================================================== */

#hero {
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.hero-content {
    max-width: 650px;
}

#hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

#hero .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--some-grey-background);
    border-color: var(--text-secondary);
}

@media (max-width: 768px) {
    #hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}



/* ==========================================================================
   About Me Section Styles
   ========================================================================== */


#about h2 {
    margin-bottom: 2.5rem;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-story p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-story p:last-child {
    margin-bottom: 0;
}

.about-skills h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.skills-intro {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.skills-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.skills-list li {
    font-size: 1rem;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.skills-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

/* Responsive adjustments for tablet and mobile devices */
@media (max-width: 768px) {
    #about {
        margin: 4rem auto;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}



/* ==========================================================================
   Services section
   ========================================================================== */

#services h2 {
    margin-bottom: 1.5rem;
}

.service-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-container :first-child {
    grid-column: 1 / -1;
}

.service-card {
    border: 1px solid var(--border-colour);
    background-color: var(--bg-primary);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    border-color: var(--accent);
    background-color: var(--some-card-colour);
    box-shadow: 0 4px 20px var(--hub-card-hover-shadow);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}


.section-lead a {
    font-size: 1.2rem;
    text-decoration: none;
    color: var(--accent);
}

.section-lead a:hover {
    transition: all 0.3s ease;
    text-decoration: underline;
    color: var(--accent-hover);
    cursor: pointer;
}


.details-container {
    display: flex;
    flex-direction: column;
    gap: 1em;
}

.details-container details {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-colour);
    border-radius: 6px;
    padding: 1rem;
    transition: all 0.2s ease;
}

.details-container details:hover {
    border-color: var(--accent);
    background-color: var(--some-card-colour);
    box-shadow: 0 4px 20px var(--hub-card-hover-shadow);
}

.details-container details summary {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none; /* Removes default arrow in most browsers */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Removes default arrow on stupid Safari */
.details-container details summary::-webkit-details-marker {
    display: none;
}

.details-container details summary::after {
    content: "→";
    color: var(--text-secondary);
    transition: transform 0.2s;
    margin-right: 0.25rem;
}

.details-container details[open] summary::after {
    transform: rotate(90deg);
    color: var(--accent);
}

.details-container details p {
    padding-top: 1rem;
    overflow: hidden;
    margin-bottom: 0;
}



/* ==========================================================================
   Education Section Styles
   ========================================================================== */

#education {
    max-width: 800px;
    margin: 4rem auto;
}    

#education h2 {
    margin-bottom: 2.5rem;
    position: relative;
}    

.education-grid {
    position: relative;
    border-left: 2px solid var(--border-colour);
    padding-left: 2rem;
    margin-left: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}    

.education-card {
    position: relative;
}    

.education-card::before {
    content: "";
    position: absolute;
    left: calc(-2rem - 10px);
    top: 0.35rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 3px solid var(--accent);
}    

.card-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}    

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}    

.institution a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}    

.institution a:hover {
    text-decoration: underline;
}    

.date {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}    

.card-body {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}    

.card-body .before-achievements-list {
    padding-bottom: 0.5rem;
}    

.achievements-summary {
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--some-grey-background);
    border-left: 3px solid var(--border-colour);
    font-size: 0.95rem;
}    

.achievements-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}    

.achievements-list li a,
.achievements-list li a:visited,
.achievements-list li a:active {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}    

.achievements-list li a:hover {
    transition: all 0.3s ease;
    text-decoration: underline;
    color: var(--accent-hover);
}    

.achievements-list li::before {
    content: "•";
    color: var(--accent);
    font-weight: bold;
    display: inline-block;
    width: 1em;
    margin-left: -1em;
}    

/* .achievements-list li.completed::before {
    color: rgb(63, 187, 29);
}    
.achievements-list li.ongoing::before {
    color: var(--accent);
}    

.achievements-list li.ongoing a:hover {
    color: var(--accent-hover);
}    
.achievements-list li.completed a:hover {
    color: rgb(43, 162, 10);
} */    



/* Mobile adjustments for smaller screens */
@media (max-width: 600px) {
    #education {
        margin: 2.5rem auto;
    }    
    
    .education-grid {
        padding-left: 1.5rem;
    }    
    
    .education-card::before {
        left: calc(-1.5rem - 10px);
    }    
}    




/* ==========================================================================
   Featured Projects Styles
   ========================================================================== */


#projects h2 {
    margin-bottom: 2.5rem;
}    

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

.project-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-colour);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}    

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px var(--project-card-shadow);
    border-color: var(--accent);
}    

.project-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}    

.project-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}    

.project-content p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}    

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}    

.project-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    background-color: var(--project-tags-span);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}    

.project-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    display: inline-block;
    margin-top: auto;
    width: fit-content;
}    

.project-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}    




/* ==========================================================================
   Other Works Hub Styles
   ========================================================================== */


#other-works h2 {
    margin-bottom: 0.5rem;
}    

.section-lead {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}    

.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}    

.hub-card {
    border: 1px solid var(--border-colour);
    background-color: var(--bg-primary);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}    

.hub-card:hover {
    border-color: var(--accent);
    background-color: var(--some-card-colour);
    box-shadow: 0 4px 20px var(--hub-card-hover-shadow);
}    

.hub-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}    

.hub-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}    

.hub-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}    

.hub-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    display: inline-block;
}    

.hub-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}    

/* Mobile responsive adjustments */
@media (max-width: 600px) {
    .hub-grid {
        grid-template-columns: 1fr;
    }    
}    



/* ==========================================================================
   Contact Section & Custom Form Styles
   ========================================================================== */

#contact h2 {
    margin-bottom: 0.5rem;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
    align-items: start;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-colour);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--form-group-input-shadow);
}

.form-submit-btn {
    align-self: flex-start;
    cursor: pointer;
    border: none;
}

.form-clear-btn {
    background-color: var(--bg-primary);
    color: var(--accent);
    align-self: flex-start;
    cursor: pointer;
    border: none;
}

.form-clear-btn:hover {
    background-color: var(--white);
    color: var(--accent-hover);
}

.form-btn-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}



.form-group textarea {
    resize: vertical; 
    min-height: 120px; 
    max-height: 350px; 
}


.success-message {
    display: none;

    box-sizing: border-box;
    width: 100%;
    max-width: 600px;
    margin: 0 auto 1.5rem;
    padding: 1.5rem;
    background-color: var(--some-card-colour);
    color: var(--text-primary);
    border: 1px solid var(--border-colour);
    border-radius: 0.5rem;
    text-align: center;
    transition: opacity 0.3s ease-out;
}

.success-message:hover {
    border-color: var(--accent-hover);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px var(--project-card-shadow);
    transition: all 0.3s ease-in-out;
}

.success-message h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.success-message p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.5rem;
}



.contact-alt-card {
    background-color: var(--some-card-colour);
    border: 1px solid var(--border-colour);
    padding: 2.5rem 2rem;
    border-radius: 8px;
}

.contact-alt-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.contact-alt-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.linkedin-cta-btn {
    width: 100%;
    text-align: center;
}

iframe#_hidden_iframe {
    display: none;
}



/* Mobile landscape adjustments */
@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}




/* ==========================================================================
   Site Footer Styles
   ========================================================================== */

.site-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-colour);
    padding: 3rem 1.5rem;
    margin-top: 6rem;
}

.footer-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-brand .footer-logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-links, 
.footer-socials {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.footer-links a, 
.footer-socials a {
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-links a:hover, 
.footer-socials a:hover {
    color: var(--accent);
}

/* Wraps the elements in .footer-socials in the center when screen too small */
@media (max-width: 1000px) {
    .footer-container {
        justify-content: center;
    }
}


/* Mobile alignment styles */
@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 1.75rem;
    }
    
    .footer-links, 
    .footer-socials {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.25rem;
    }
}