/* ==========================================================================
   CSS CUSTOM PROPERTIES
   ========================================================================== */
:root {
    /* Typography */
    --font-display: "Cormorant Garamond", serif;
    --font-body: "Crimson Text", serif;

    /* Colors */
    --color-bg: #131515;
    --color-text: #FFFAFB;
    --color-accent: #F29559;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Layout */
    --max-width: 1200px;
}

/* ==========================================================================
   BASE STYLES - MOBILE FIRST (≥325px)
   ========================================================================== */
body {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    letter-spacing: 0.02em;
    background-color: var(--color-bg);
    color: var(--color-text);
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 500;
    letter-spacing: 0.125em;
    line-height: 1.3;
}

h1 {
    font-size: 1.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

/* ==========================================================================
   LAYOUT COMPONENTS
   ========================================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-sm);
    position: relative;
}

#brand-logo {
    flex: 1;
}

a {
    text-decoration: none;
    color: var(--color-text);
    transition: color 0.3s ease;
}

#logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    letter-spacing: 0.125em;
}

/* Desktop navigation - hidden on mobile */
#desktop-nav {
    display: none;
}

/* Mobile menu toggle button */
#menu-toggle {
    background-color: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 100;
}

/* Popover menu styles */
#mobile-menu {
    background-color: var(--color-bg);
    border: 1px solid rgba(242, 149, 89, 0.3);
    width: 100%;
    max-width: 100%;
    padding: var(--spacing-md);
    margin: 0;
    inset: 0;
}

#mobile-menu::backdrop {
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.close-menu {
    background-color: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    margin-left: auto;
    display: block;
    margin-bottom: var(--spacing-md);
}

#mobile-primary-links,
#mobile-secondary-links {
    display: flex;
    flex-direction: column;
    gap: 0;
}

#mobile-secondary-links {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(242, 149, 89, 0.2);
}

#mobile-primary-links .nav-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-accent);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: padding 0.3s ease;
}

#mobile-primary-links .nav-link:hover {
    padding-left: var(--spacing-xs);
}

#mobile-primary-links .nav-link .chevron-right {
    width: 1.25em;
    height: 1.25em;
    opacity: 1;
    transition: transform 0.3s ease;
}

#mobile-primary-links .nav-link:hover .chevron-right {
    transform: translateX(4px);
}

#mobile-menu .social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    padding: var(--spacing-sm) 0;
}

/* Icon styles */
.feather {
    width: 1.5em;
    height: auto;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

button .feather {
    width: 1.75em;
}

/* ==========================================================================
   MAIN CONTENT SECTIONS
   ========================================================================== */
main {
    min-height: 60vh;
}

section {
    padding: var(--spacing-lg) 0;
}

#hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    font-size: 2.5rem;
}

.hero-description {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-divider {
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
    margin: var(--spacing-sm) 0 var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
    border-top: 1px solid rgba(242, 149, 89, 0.2);
    margin-top: var(--spacing-xl);
}

footer p {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ==========================================================================
   TABLET STYLES (≥768px)
   ========================================================================== */
@media (min-width: 768px) {
    body {
        font-size: 19px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 2rem;
    }

    header {
        padding: var(--spacing-md);
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-title {
        font-size: 3rem;
    }

    section {
        padding: var(--spacing-xl) 0;
    }
}

/* ==========================================================================
   DESKTOP STYLES (≥992px)
   ========================================================================== */
@media (min-width: 992px) {

    /* Hide mobile menu toggle */
    #menu-toggle {
        display: none;
    }

    /* Show desktop navigation */
    #desktop-nav {
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
    }

    #primary-links {
        display: flex;
        gap: var(--spacing-md);
        align-items: center;
    }

    #secondary-links {
        display: flex;
        gap: var(--spacing-sm);
        align-items: center;
        padding-left: var(--spacing-md);
        border-left: 1px solid rgba(242, 149, 89, 0.3);
    }

    .nav-link {
        font-family: var(--font-display);
        letter-spacing: 0.1em;
        font-size: 1rem;
        position: relative;
    }

    .social-link .feather {
        width: 1.25em;
        height: 1.25em;
    }

    /* Hover effects */
    a:not(#logo):hover {
        color: var(--color-accent);
    }

    .nav-link:hover {
        text-decoration: underline;
        text-decoration-color: var(--color-accent);
        text-underline-offset: 0.5em;
    }

    .social-link:hover .feather {
        fill: var(--color-accent);
    }

    /* Active page indicator */
    .nav-link.active {
        color: var(--color-accent);
    }

    header {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

/* ==========================================================================
   LARGE DESKTOP STYLES (≥1200px)
   ========================================================================== */
@media (min-width: 1200px) {
    body {
        font-size: 20px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .section-description {
        font-size: 1.25rem;
    }
}

/* ==========================================================================
   EXTRA LARGE DESKTOP STYLES (≥1400px)
   ========================================================================== */
@media (min-width: 1400px) {
    .hero-title {
        font-size: 4rem;
    }
}

/* ==========================================================================
   PAGE-SPECIFIC STYLES
   ========================================================================== */

/* Projects Page */
.project-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    padding: var(--spacing-md);
    border: 1px solid rgba(242, 149, 89, 0.2);
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.project-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.project-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.project-card p {
    opacity: 0.9;
}

/* Blog/Thoughts Page */
#blog-controls {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(242, 149, 89, 0.2);
}

#blog-content {
    padding-top: var(--spacing-md);
    padding-bottom: 0;
}

.blog-list {
    margin-top: 0;
}

.blog-post-preview {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid rgba(242, 149, 89, 0.2);
}

.blog-post-preview:last-child {
    border-bottom: none;
}

.blog-post-preview h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.75rem;
}

.blog-post-preview h3 a {
    transition: color 0.3s ease;
}

.blog-post-preview h3 a:hover {
    color: var(--color-accent);
}

.post-meta {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: var(--spacing-sm);
}

.post-excerpt {
    opacity: 0.9;
}

.post-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.category-tag {
    font-size: 0.85rem;
    padding: 0.25rem 0.75rem;
    background-color: rgba(242, 149, 89, 0.1);
    border: 1px solid rgba(242, 149, 89, 0.3);
    border-radius: 4px;
    color: var(--color-accent);
    font-family: var(--font-display);
    letter-spacing: 0.05em;
}

/* Search and Filter Styling */
.search-container {
    position: relative;
    margin-bottom: var(--spacing-md);
}

#blog-search {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 3rem;
    background-color: rgba(255, 250, 251, 0.05);
    border: 1px solid rgba(242, 149, 89, 0.3);
    color: var(--color-text);
    font-size: 1rem;
    font-family: var(--font-body);
    border-radius: 4px;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

#blog-search:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: rgba(255, 250, 251, 0.08);
}

#blog-search::placeholder {
    color: rgba(255, 250, 251, 0.5);
}

.search-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 1.25em;
    height: 1.25em;
    opacity: 0.5;
    pointer-events: none;
}

.filter-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    width: 100%;
    padding: var(--spacing-sm);
    background-color: rgba(255, 250, 251, 0.05);
    border: 1px solid rgba(242, 149, 89, 0.3);
    color: var(--color-text);
    cursor: pointer;
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-body);
    margin-bottom: var(--spacing-sm);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.filter-toggle:hover {
    background-color: rgba(255, 250, 251, 0.08);
    border-color: var(--color-accent);
}

.filter-toggle .feather {
    width: 1.25em;
    height: 1.25em;
}

.filter-toggle .chevron {
    margin-left: auto;
    transition: transform 0.3s ease;
}

.filter-toggle.active .chevron {
    transform: rotate(180deg);
}

.filter-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.filter-container.expanded {
    max-height: 500px;
}

.filter-group {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Hide checkbox, style label as toggle button */
.filter-checkbox {
    display: none;
}

.filter-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.75rem 1.25rem;
    background-color: transparent;
    border: 1px solid rgba(242, 149, 89, 0.3);
    color: var(--color-text);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.filter-label:hover {
    border-color: var(--color-accent);
    background-color: rgba(242, 149, 89, 0.05);
}

.filter-label.active {
    background-color: rgba(242, 149, 89, 0.15);
    border-color: var(--color-accent);
}

.filter-label.active span {
    color: var(--color-accent);
}

.filter-label span {
    opacity: 0.9;
}

.clear-filters {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: transparent;
    border: 1px solid rgba(242, 149, 89, 0.3);
    color: var(--color-accent);
    cursor: pointer;
    border-radius: 4px;
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.clear-filters:hover {
    background-color: rgba(242, 149, 89, 0.1);
    border-color: var(--color-accent);
}

.loading-message,
.no-results {
    text-align: center;
    padding: var(--spacing-xl) 0;
    opacity: 0.7;
    font-style: italic;
}

/* Skeleton Loaders */
.skeleton-post {
    pointer-events: none;
}

.skeleton {
    background: linear-gradient(90deg,
            rgba(255, 250, 251, 0.05) 25%,
            rgba(255, 250, 251, 0.1) 50%,
            rgba(255, 250, 251, 0.05) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-title {
    height: 2rem;
    width: 70%;
    margin-bottom: var(--spacing-xs);
}

.skeleton-meta {
    height: 0.9rem;
    width: 40%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-excerpt {
    height: 1rem;
    width: 100%;
    margin-bottom: 0.5rem;
}

.skeleton-excerpt.short {
    width: 85%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-categories {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.skeleton-tag {
    height: 1.5rem;
    width: 120px;
}

/* Article Modal Dialog */
.article-modal {
    max-width: 100vw;
    max-height: 100vh;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: 0;
    overflow: hidden;
    margin: 0;
}

.article-modal::backdrop {
    background-color: rgba(0, 0, 0, 0.95);
}

/* Prevent body scroll when modal is open */
body:has(dialog[open]) {
    overflow: hidden;
}

.modal-header {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid rgba(242, 149, 89, 0.2);
    padding: var(--spacing-md);
    display: flex;
    justify-content: flex-end;
    z-index: 10;
}

.modal-close {
    background-color: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

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

.modal-close .feather {
    width: 1.5em;
    height: 1.5em;
}

.modal-content {
    padding: var(--spacing-md);
    padding-bottom: var(--spacing-xl);
    overflow-y: auto;
    max-height: calc(100vh - 80px);
    max-width: 700px;
    margin: 0 auto;
}

.modal-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.modal-meta {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: var(--spacing-md);
}

.modal-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.modal-body {
    font-size: 1.1rem;
    line-height: 1.8;
}

.modal-body p {
    margin-bottom: var(--spacing-md);
}

.modal-body p:last-child {
    margin-bottom: 0;
}

/* Article Images */
.article-image {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.article-image img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 4px;
}

.article-image figcaption {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    opacity: 0.7;
    font-style: italic;
}

/* Article Audio */
.article-audio {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background-color: rgba(255, 250, 251, 0.03);
    border: 1px solid rgba(242, 149, 89, 0.2);
    border-radius: 4px;
}

.audio-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.article-audio audio {
    width: 100%;
    margin: 0;
    outline: none;
}

.article-audio audio::-webkit-media-controls-panel {
    background-color: rgba(255, 250, 251, 0.05);
}

.article-audio audio::-webkit-media-controls-play-button,
.article-audio audio::-webkit-media-controls-current-time-display,
.article-audio audio::-webkit-media-controls-time-remaining-display {
    color: var(--color-text);
}

.article-audio audio::-webkit-media-controls-timeline {
    background-color: rgba(242, 149, 89, 0.2);
    border-radius: 2px;
}

.article-audio audio::-webkit-media-controls-timeline::-webkit-slider-thumb {
    background-color: var(--color-accent);
}

/* Identity/About Page */
.about-section {
    margin-bottom: var(--spacing-xl);
}

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

.about-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.about-section p {
    opacity: 0.9;
}

/* Responsive adjustments for page-specific content */
@media (min-width: 768px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Blog controls: toggle buttons on tablet/desktop */
    .filter-toggle {
        display: none;
    }

    .filter-container {
        max-height: none;
        overflow: visible;
    }

    .filter-group {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .filter-label.active {
        background-color: rgba(242, 149, 89, 0.15);
        border-color: var(--color-accent);
    }

    .filter-label.active span {
        color: var(--color-accent);
    }

    /* Article modal adjustments */
    .modal-content {
        padding: var(--spacing-lg);
        padding-bottom: var(--spacing-xl);
    }

    .modal-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 992px) {
    .project-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* More spacing for filters on larger screens */
    .filter-group {
        gap: var(--spacing-sm) var(--spacing-md);
    }

    /* Centered modal on desktop */
    .article-modal {
        width: 800px;
        max-width: 90vw;
        height: auto;
        max-height: 90vh;
        border: 1px solid rgba(242, 149, 89, 0.3);
        border-radius: 8px;
        margin: auto;
    }

    .modal-content {
        padding: var(--spacing-xl);
        padding-bottom: calc(var(--spacing-xl) * 2);
        max-height: calc(90vh - 80px);
    }
}