/*
----------------------------------------------------------------------------
    variables
----------------------------------------------------------------------------
*/

:root {
    /* color palette */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f7f7f7;
    --color-text-primary: #000000;
    --color-text-secondary: #555555;
    --color-accent: #000000;
    --color-accent-hover: #333333;
    --color-border: #dddddd;
    --color-card-bg: #ffffff;
    --color-overlay: rgba(255, 255, 255, 0.95);

    /* typography */
    --font-family-sans: 'Inter', sans-serif;
    --font-size-base: 1rem;

    /* spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* transitions */
    --transition-duration: 250ms;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    
    /* z-index Stack */
    --z-index-banner: 1000;
    --z-index-ticker: 101;
    --z-index-header: 100;
    --z-index-modal-overlay: 2000;
    --z-index-modal-content: 2001;
}

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

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: var(--font-family-sans);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.error-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #ffcccc;
    color: #cc0000;
    padding: 0.5rem 1rem;
    text-align: center;
    font-size: 0.9rem;
    z-index: var(--z-index-banner);
    transition: opacity var(--transition-duration);
}
.error-banner.is-visible {
    opacity: 1;
}

/* 
----------------------------------------------------------------------------
    layout & structure
----------------------------------------------------------------------------
*/

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

main {
    padding-top: 100px; 
}

.section-padding {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.section-headline {
    font-size: 4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    width: auto;
}

.section-padding > .container > .section-headline {
    margin-bottom: var(--spacing-xl);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    max-width: 1400px;
}

.gallery-item {
    margin-bottom: var(--spacing-md);
}

/* screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-secondary);
    font-size: 1.25rem;
    font-style: italic;
}

/* 
----------------------------------------------------------------------------
    header & navigation
---------------------------------------------------------------------------- 
*/

.skills-ticker {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    height: 35px;
    line-height: 35px;
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-index-ticker);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ticker-content {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.ticker-skill {
    position: fixed;
    opacity: 0;
    transition: opacity var(--transition-duration) var(--transition-easing);
    white-space: nowrap;
    font-size: inherit;
    font-weight: inherit;
}

.ticker-skill.active-fade {
    opacity: 1;
}

.header {
    position: fixed;
    top: 35px;
    left: 0;
    width: 100%;
    z-index: var(--z-index-header);
    background-color: var(--color-bg-primary);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.navbar-logo {
    color: var(--color-text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.02em;
}

.navbar-links {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.navbar-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.navbar-links a:hover,
.navbar-links a:focus-visible {
    color: var(--color-text-primary);
    outline: none;
}

.navbar-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent);
    transform-origin: bottom center;
    animation: underline-grow 0.3s forwards;
}

@keyframes underline-grow {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

.nav-contact-link {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    color: var(--color-text-primary);
    padding: 0.5rem 0;
    transition: opacity var(--transition-duration);
}

.nav-contact-link:hover {
    opacity: 0.7;
}

/* 
----------------------------------------------------------------------------
    buttons & controls
----------------------------------------------------------------------------
*/

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0;
    font-weight: 500;
    border: none;
    background: none;
    text-decoration: underline;
    text-underline-offset: 8px;
    cursor: pointer;
    transition: all var(--transition-duration) var(--transition-easing);
    font-size: 1.125rem;
    letter-spacing: 0.02em;
}

.button-primary {
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-text-primary);
}

.button-primary:hover, .button-primary:focus-visible {
    opacity: 0.8;
    outline: none;
}

.button-secondary {
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-text-secondary);
}

.button-secondary:hover, .button-secondary:focus-visible {
    color: var(--color-text-primary);
    border-color: var(--color-text-primary);
    outline: none;
}

.button-inline-link {
    font-size: 1rem;
    text-underline-offset: 4px;
    padding-bottom: 0;
    margin-bottom: 1.25rem; 
}

.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.filter-group {
    display: flex; 
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.chip {
    padding: 0.25rem 0;
    border-radius: 0;
    font-size: 0.9rem;
    cursor: pointer;
    background-color: transparent;
    color: var(--color-text-secondary);
    border: none;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-duration);
}

.chip:hover, .chip:focus-visible {
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-text-primary);
    outline: none;
}

.chip.active {
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-text-primary);
    font-weight: 600;
}

.control-select, .control-input {
    background-color: transparent;
    color: var(--color-text-primary);
    border: none;
    border-bottom: 1px solid var(--color-text-secondary);
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    transition: border-color var(--transition-duration);
    cursor: pointer;
}

.control-input:focus, .control-select:focus {
    border-color: var(--color-text-primary);
    outline: none;
}

/* 
----------------------------------------------------------------------------
    section specific styling
---------------------------------------------------------------------------- 
*/

.hero-section {
    padding-top: var(--spacing-xl);
    /* padding-bottom: var(--spacing-xl); */
    border-bottom: none;
}

/*
.hero-section .container {
    margin-left: 0;
    text-align: left;
    max-width: 1400px;
}
*/

.hero-name {
    font-size: 8rem;
    font-weight: 900;
    margin-bottom: 0;
    line-height: 1;
    letter-spacing: -0.05em;
    text-align: left;
}

.hero-descriptor {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-top: 1rem;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: left;
}

.hero-cta-group {
    width: 100%;
    display: flex;
    gap: var(--spacing-lg);
}

.work-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-lg);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    max-width: 100%;
}
.work-header .section-headline {
    margin-bottom: 0; 
    border-bottom: none; 
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg); /* Larger gaps */
}

.project-card {
    background-color: var(--color-bg-primary);
    border-radius: 0;
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: box-shadow var(--transition-duration), border-color var(--transition-duration);
}

.project-card:hover, .project-card:focus-visible {
    transform: none;
    box-shadow: 0 0 0 4px var(--color-text-primary);
    border-color: var(--color-text-primary);
    outline: none;
}

.project-thumb {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    filter: none;
    border-bottom: 1px solid var(--color-border);
}

.project-info {
    padding: var(--spacing-md);
}

.project-info h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 600;
}

.project-metadata {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}
.project-metadata span {
    margin-right: var(--spacing-sm);
}

.project-tags {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.artists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.artist-card {
    display: flex;
    align-items: center;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: background-color var(--transition-duration), border-color var(--transition-duration);
}

.artist-card:hover, .artist-card:focus-visible {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-text-primary);
    outline: none;
}

.artist-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.artist-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.artist-info p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* About Section */
.about-content {
    max-width: 900px;
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--color-text-primary);
}

.about-content h3 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.about-content p {
    /* margin-bottom: var(--spacing-lg); */
    font-weight: 300;
}

.about-meta {
    margin-top: var(--spacing-lg);
    font-size: 1rem;
    line-height: 1.4;
    color: var(--color-text-secondary);
}

/* Contact Section */
.contact-links {
    max-width: 1400px;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.social-links a {
    color: var(--color-text-secondary);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: color var(--transition-duration), text-decoration var(--transition-duration);
}

.social-links a:hover, .social-links a:focus-visible {
    color: var(--color-text-primary);
    text-decoration: underline;
    outline: none;
}
 
/*
----------------------------------------------------------------------------
    modal / overlay
---------------------------------------------------------------------------- 
*/

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
    z-index: var(--z-index-modal-overlay);
    
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    
    transition: opacity 0.3s ease-out;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-y: auto;
}

.modal-overlay[hidden] {
    display: none !important;
}

.modal-overlay.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--color-card-bg);
    width: 90%;
    max-width: 900px;
    margin: 4rem 0;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-text-primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    transform: translateY(-50px);
    transition: transform 0.3s ease-out;
    z-index: var(--z-index-modal-content);
}

.modal-overlay.is-visible .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: transparent;
    border: none;
    color: var(--color-text-primary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    transition: color var(--transition-duration);
    z-index: 10;
}

.modal-close:hover {
    color: var(--color-text-secondary);
}

/* .modal-body {
    padding-top: var(--spacing-md);
}

.modal-header {
    margin-bottom: var(--spacing-md);
} */

.modal-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.modal-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.modal-section {
    margin-top: var(--spacing-md);
}

.modal-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--color-border);
}

.modal-section p, .modal-section li {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.modal-links-list, .modal-notable-works-list {
    list-style: none;
    padding: 0;
}

.modal-links-list a {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--transition-duration), opacity var(--transition-duration);
}

.modal-links-list a:hover {
    opacity: 0.7;
}

.modal-audio audio {
    margin-top: var(--spacing-sm);
}

/* 
----------------------------------------------------------------------------
    responsive design
---------------------------------------------------------------------------- 
*/

@media (min-width: 1201px) {
    /* Large Desktop */
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 901px) and (max-width: 1200px) {
    /* Tablet/Medium Screens */
    .hero-name {
        font-size: 6rem;
    }
    .section-headline {
        font-size: 3rem;
    }
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .hero-name {
        font-size: 4rem;
    }
    .hero-descriptor {
        font-size: 1.25rem;
    }
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    .artists-grid {
        grid-template-columns: 1fr;
    }
    .navbar-links {
        display: none;
    }
    .navbar {
        justify-content: space-around;
    }
    main {
        padding-top: 65px;
    }
    .header {
        top: 0;
        padding: 0;
        border-bottom: 1px solid var(--color-border);
    }
    .skills-ticker {
        display: none;
    }
    .about-content {
        font-size: 1.25rem;
    }
    .modal-content {
        width: 95%;
        margin: 2rem 0;
    }
}

@media (max-width: 600px) {
    .hero-name {
        font-size: 3rem;
    }
    .section-headline {
        font-size: 2rem;
    }
    .about-content {
        font-size: 1.1rem;
    }
    .hero-cta-group {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    .work-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    .filter-controls {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    .filter-group {
        gap: var(--spacing-md);
    }
}