/* Typography-Driven Minimalist CSS */
:root {
    --bg-base: #0a0a0a;
    --bg-surface: #121212;
    --bg-header: rgba(10, 10, 10, 0.8);
    --border-color: #1a1a1a;
    --border-hover: #333333;
    
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #525252;
    
    --accent-color: #10b981; /* Emerald Green */
    --accent-glow: rgba(16, 185, 129, 0.06);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --container-width: 760px; /* Editorial narrow reading width */
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-base);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    position: relative;
    overflow-y: scroll;
    min-height: 100vh;
    line-height: 1.6;
}

/* Very subtle background decoration */
.ambient-glow {
    position: fixed;
    top: -20vh;
    left: -20vw;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    background: var(--accent-color);
    filter: blur(160px);
    opacity: 0.05;
    pointer-events: none;
    z-index: -1;
}

.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content-container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 7rem 1.5rem 4rem; /* top offset for fixed header */
    flex-grow: 1;
}

/* Header Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--bg-header);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    height: 72px;
    padding: 0 1.5rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    transition: var(--transition-fast);
}

.logo:hover {
    opacity: 0.8;
}

.accent-dot {
    color: var(--accent-color);
}

.nav {
    display: flex;
    gap: 1.75rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    padding: 0.25rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

/* Tab Routing Content */
.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.tab-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Typography elements */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

/* TAB: HOME Hero */
.about-hero {
    padding: 2.5rem 0 4rem;
}

.about-title {
    font-size: 3rem;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    transition: color var(--transition-medium);
    display: inline-block;
    cursor: default;
}

.about-title:hover {
    color: var(--accent-color);
}

.about-lead {
    font-size: 1.35rem;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    letter-spacing: -0.2px;
}

.highlight-text {
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 1px;
}

.about-body {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Section Divider */
.section-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 2.5rem;
}

.divider-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
}

.divider-line {
    flex-grow: 1;
    height: 1px;
    background-color: var(--border-color);
}

/* Thoughts / Blog List */
.latest-thoughts-list, .thoughts-list {
    display: flex;
    flex-direction: column;
}

.thought-item {
    display: flex;
    flex-direction: column;
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.thought-item:last-child {
    border-bottom: none;
}

.thought-item:hover .thought-title {
    color: var(--accent-color);
}

.thought-meta {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.thought-category {
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 500;
}

.thought-category.category-technical {
    color: var(--accent-color);
}

.thought-category.category-human {
    color: #94a3b8; /* Muted cool grey */
}

.thought-label-badge {
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
}

.thought-label-badge:hover {
    color: var(--accent-color);
}

.thought-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    transition: var(--transition-fast);
}

.thought-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* View All Links */
.view-all-wrapper {
    margin-top: 2rem;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.text-link .arrow-icon {
    width: 1.1rem;
    height: 1.1rem;
    transition: var(--transition-fast);
}

.text-link:hover .arrow-icon {
    transform: translateX(4px);
}

/* TAB: THOUGHTS & Page Header */
.page-header {
    padding: 2.5rem 0 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2.25rem;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

.blog-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-pills {
    display: flex;
    gap: 0.5rem;
}

.filter-pill {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-pill:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.filter-pill.active {
    background-color: var(--border-color);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.search-input {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 4px;
    font-family: var(--font-sans);
    outline: none;
    width: 200px;
    transition: var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Active Label Filter Badge */
.active-label-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 4px;
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    color: var(--text-primary);
}

.active-label-badge span {
    font-family: var(--font-mono);
    font-weight: 500;
}

#clear-label-filter {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

#clear-label-filter:hover {
    color: #ef4444;
}

.hidden {
    display: none !important;
}

/* TAB: WORK (Selected Projects List) */
.work-content {
    padding: 2.5rem 0;
}

.work-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 4rem;
}

.work-item {
    display: flex;
    flex-direction: column;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.work-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.work-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.work-item-category {
    color: var(--accent-color);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.work-item-date {
    color: var(--text-muted);
}

.work-item-title {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

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

.work-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.work-item-tags span {
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    background-color: rgba(255, 255, 255, 0.01);
}

/* Archived Old Portfolio Format Styles */
.work-placeholder-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 1rem;
    margin-bottom: 3.5rem;
}

.work-item-old {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 2rem;
}

.work-item-old:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.work-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.work-item-tag {
    color: var(--accent-color);
    font-weight: 500;
    text-transform: uppercase;
}

.work-item-title-old {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
}

.work-item-description-old {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-article-link {
    color: var(--accent-color);
    text-decoration: underline;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Interactive Work Item Styles */
.interactive-work-item {
    transition: var(--transition-fast);
    cursor: pointer;
}

.interactive-work-item:hover .work-item-title-old,
.interactive-work-item:hover .project-article-link {
    color: var(--accent-color);
}

/* Info Box / Note Box */
.work-note-box {
    display: flex;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.01);
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    padding: 1.25rem;
    align-items: flex-start;
}

.note-icon {
    color: var(--accent-color);
    font-size: 1.15rem;
    line-height: 1;
}

.note-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.note-link-inline {
    color: var(--text-primary);
    text-decoration: underline;
    transition: var(--transition-fast);
}

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

/* Footer Section */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    margin-top: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-meta {
    font-family: var(--font-mono);
}

/* Blog Dynamic Modal Style */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(8px);
}

.modal-wrapper {
    position: relative;
    width: 90%;
    max-width: var(--container-width);
    height: 85vh;
    z-index: 1;
    transform: scale(0.97) translateY(10px);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.open .modal-wrapper {
    transform: scale(1) translateY(0);
}

.modal-container {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-meta {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.modal-tag {
    text-transform: uppercase;
    font-weight: 500;
}

.modal-tag.category-technical {
    color: var(--accent-color);
}

.modal-tag.category-human {
    color: #94a3b8; /* Muted cool grey */
}

.modal-date-text {
    color: var(--text-muted);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
}

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

.modal-content-area {
    padding: 2.5rem 1.5rem;
    overflow-y: auto;
    flex-grow: 1;
}

.modal-title-text {
    font-size: 2.25rem;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.modal-body-text {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.modal-body-text p {
    margin-bottom: 1.5rem;
}

.modal-body-text h2 {
    font-size: 1.4rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-primary);
}

.modal-body-text h3 {
    font-size: 1.15rem;
    margin: 2rem 0 0.8rem;
    color: var(--text-primary);
}

.modal-body-text ul, .modal-body-text ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.modal-body-text li {
    margin-bottom: 0.5rem;
}

.modal-body-text pre {
    background: #111111;
    padding: 1.25rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

.modal-body-text code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    background: #181818;
    padding: 0.15rem 0.3rem;
    border-radius: 3px;
    color: var(--text-primary);
}

.modal-body-text pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
}

/* Vicki-style About Page Styles */
.about-content-vicki {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
    padding: 3rem 0;
}

.vicki-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.vicki-heading {
    font-size: 1.35rem;
    letter-spacing: -0.2px;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.vicki-text {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.vicki-timeline {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.timeline-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.timeline-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.timeline-role {
    color: var(--text-primary);
    font-weight: 500;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.focus-title {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

.vicki-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.vicki-list li {
    font-size: 1rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.25rem;
}

.vicki-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.vicki-link {
    color: var(--text-primary);
    text-decoration: underline;
    transition: var(--transition-fast);
}

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

/* Mobile responsive styling */
@media (max-width: 768px) {
    .content-container {
        padding: 6rem 1.25rem 3rem;
    }
    
    .about-title {
        font-size: 2.25rem;
    }
    
    .about-lead {
        font-size: 1.15rem;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .blog-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input {
        width: 100%;
    }
    
    .filter-pills {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 0.25rem;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .focus-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.ja-greet {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
    font-weight: 500;
    font-size: 0.85em;
    opacity: 0.95;
    letter-spacing: 0;
}

/* Photo Timeline Grid */
.photo-timeline-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
}

.photo-timeline-card {
    display: flex;
    flex-direction: column;
}

.photo-wrapper {
    width: 100%;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: #111;
    margin-bottom: 1rem;
}

.photo-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--transition-medium);
}

.photo-wrapper img:hover {
    filter: grayscale(0%);
}

.photo-caption {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Mobile responsive styles */
@media (max-width: 768px) {
    .photo-timeline-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Hero Social Drawer */
.hero-social-drawer {
    display: flex;
    gap: 1.5rem;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, margin-top 0.3s ease, margin-bottom 0.3s ease;
    margin-top: 0;
    margin-bottom: 0;
}

.hero-social-drawer.expanded {
    max-height: 50px;
    opacity: 1;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.social-drawer-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.social-drawer-link:hover {
    color: var(--accent-color);
    transform: translateY(-1px);
}

.social-icon {
    width: 14px;
    height: 14px;
    stroke-width: 2px;
}