/* ============================================
   Nice Why Studio
   ============================================ */

:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-secondary: #6b6b65;
    --color-accent: #b56b4a;
    --color-border: #e0dfda;
    --color-placeholder-bg: #eae9e4;
    --color-placeholder-text: #999892;

    --font-family: 'Inclusive Sans', sans-serif;

    --size-xs: 0.8rem;
    --size-sm: 0.9rem;
    --size-base: 1.05rem;
    --size-md: 1.25rem;
    --size-lg: 1.6rem;
    --size-xl: 2.2rem;
    --size-2xl: 3rem;
    --size-wordmark: 1.5rem;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
    --space-2xl: 8rem;

    --max-width-text: 660px;
    --max-width-content: 940px;
    --max-width-wide: 1200px;

    --line-height-body: 1.65;
    --line-height-heading: 1.2;
}


/* ---- Reset ---- */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--size-base);
    line-height: var(--line-height-body);
    color: var(--color-text);
    background-color: var(--color-bg);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: var(--line-height-heading);
}


/* ---- Animations ---- */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children when parent is revealed */
.fade-in-stagger .fade-in:nth-child(1) { transition-delay: 0s; }
.fade-in-stagger .fade-in:nth-child(2) { transition-delay: 0.08s; }
.fade-in-stagger .fade-in:nth-child(3) { transition-delay: 0.16s; }
.fade-in-stagger .fade-in:nth-child(4) { transition-delay: 0.24s; }
.fade-in-stagger .fade-in:nth-child(5) { transition-delay: 0.32s; }
.fade-in-stagger .fade-in:nth-child(6) { transition-delay: 0.4s; }

/* Hero — heading snaps in fast, subhead closely follows */
.fade-in-hero-heading {
    transition: opacity 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.fade-in-hero-body {
    transition: opacity 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    transition-delay: 0.1s;
}


/* ============================================
   Homepage
   ============================================ */

/* ---- Header / Wordmark ---- */

.home-header {
    text-align: center;
    padding: 60px 24px 20px;
}

.home-wordmark {
    font-size: var(--size-wordmark);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1;
    color: var(--color-text);
}


/* ---- Homepage sections ---- */

.home-section {
    padding: 80px 24px;
    text-align: center;
}

.home-heading {
    font-size: 5rem;
    font-weight: 500;
    line-height: 1.05;
    letter-spacing: -0.03em;
    max-width: 960px;
    margin: 0 auto 40px;
    color: var(--color-text);
}

.home-body {
    font-size: 1.4rem;
    line-height: 1.4;
    letter-spacing: -0.03em;
    color: var(--color-text-secondary);
    max-width: 512px;
    margin: 0 auto;
    text-align: justify;
}

.spacer-160px {
    height: 160px;
}


/* ---- Marquee / Image carousel ---- */

.marquee {
    width: 100%;
    overflow: hidden;
    padding: 0;
}

.marquee-track {
    display: flex;
    gap: 20px;
    width: max-content;
    will-change: transform;
}

.marquee[data-direction="rtl"] .marquee-track {
    animation: marquee-rtl 50s linear infinite;
}

.marquee[data-direction="ltr"] .marquee-track {
    animation: marquee-ltr 50s linear infinite;
}

@keyframes marquee-rtl {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes marquee-ltr {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* ---- Marquee items ---- */

.marquee-item {
    flex-shrink: 0;
    height: 358px;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid #eeeeee;
    position: relative;
    cursor: default;
    transition: opacity 0.4s ease, filter 0.4s ease;
}

a.marquee-item {
    cursor: pointer;
}

.marquee-item img {
    height: 100%;
    width: auto;
    max-width: none;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Project name label — hidden by default, fades in on hover */
.marquee-label {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 7px 13px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px;
    color: #ffffff;
    font-size: var(--size-xs);
    font-weight: 400;
    letter-spacing: -0.01em;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

/* Hover: show label, subtle zoom, dim siblings */
.marquee-item:hover .marquee-label {
    opacity: 1;
    transform: translateY(0);
}

.marquee-item:hover img {
    transform: scale(1.03);
}

/* When any item in the track is hovered, dim the others */
.marquee-track:hover .marquee-item {
    opacity: 0.45;
    filter: saturate(0.4);
}

.marquee-track:hover .marquee-item:hover {
    opacity: 1;
    filter: saturate(1);
}

/* Pause animation on hover */
.marquee:hover .marquee-track {
    animation-play-state: paused;
}


/* ============================================
   Project detail page
   ============================================ */

.project-page {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.project-nav {
    margin-bottom: 48px;
}

.project-header {
    max-width: var(--max-width-text);
    margin-bottom: 32px;
}

.project-title {
    font-size: 3.2rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 16px;
}

.project-oneliner {
    font-size: var(--size-md);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Tags */
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 48px;
}

.project-tag {
    font-size: var(--size-xs);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    padding: 6px 16px;
    letter-spacing: 0.02em;
}

/* Image grid */
.project-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 48px;
}

.project-img {
    border-radius: 16px;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.project-img:hover img {
    transform: scale(1.02);
}

/* Hero image spans full width */
.project-img--hero {
    grid-column: 1 / -1;
}

.project-img-caption {
    font-size: var(--size-xs);
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
    padding: 0 4px;
}

/* Body text */
.project-body {
    max-width: var(--max-width-text);
    margin-bottom: 48px;
}

.project-body p {
    font-size: var(--size-base);
    line-height: var(--line-height-body);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

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

/* External link */
.project-link {
    margin-bottom: 48px;
}

.project-external-link {
    font-size: var(--size-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 2px;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.project-external-link:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}


/* ============================================
   Writing hub / index
   ============================================ */

.writing-hub {
    max-width: var(--max-width-text);
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.writing-hub-header {
    margin-bottom: 60px;
}

.writing-hub-title {
    font-size: 3.2rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

.writing-list {
    list-style: none;
}

.writing-entry {
    padding: 28px 0;
    border-bottom: 1px solid var(--color-border);
}

.writing-entry:first-child {
    border-top: 1px solid var(--color-border);
}

.writing-entry-link {
    display: block;
    transition: opacity 0.2s ease;
}

.writing-entry-link:hover {
    opacity: 0.6;
}

.writing-entry-title {
    font-size: var(--size-lg);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.writing-entry-subtitle {
    font-size: var(--size-base);
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    line-height: 1.5;
}

.writing-entry-date {
    font-size: var(--size-xs);
    color: var(--color-text-secondary);
    display: block;
}

.writing-empty {
    color: var(--color-text-secondary);
    font-size: var(--size-sm);
}


/* ============================================
   Writing detail page
   ============================================ */

.writing-page {
    max-width: var(--max-width-text);
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.writing-page-nav {
    margin-bottom: 48px;
}

.writing-page-header {
    margin-bottom: 48px;
}

.writing-page-title {
    font-size: 2.8rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 12px;
}

.writing-page-date {
    font-size: var(--size-sm);
    color: var(--color-text-secondary);
    display: block;
}

.writing-page-body p {
    font-size: var(--size-base);
    line-height: var(--line-height-body);
    margin-bottom: var(--space-md);
}

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

.writing-page-body h2 {
    font-size: var(--size-lg);
    font-weight: 500;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.writing-page-body h3 {
    font-size: var(--size-md);
    font-weight: 500;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.writing-page-body blockquote {
    border-left: 2px solid var(--color-border);
    padding-left: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

.writing-page-body ul,
.writing-page-body ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-md);
}

.writing-page-body li {
    margin-bottom: var(--space-xs);
}

.writing-page-body a {
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    transition: color 0.2s ease, border-color 0.2s ease;
}

.writing-page-body a:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}

.writing-page-body strong {
    font-weight: 700;
}

.writing-page-body em {
    font-style: italic;
}

.writing-page-body hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-xl) 0;
}


/* ============================================
   Shared components
   ============================================ */

.back-link {
    font-size: var(--size-sm);
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}

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


/* ============================================
   Footer
   ============================================ */

.site-footer {
    padding: var(--space-2xl) var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    max-width: var(--max-width-content);
    margin: 0 auto;
    text-align: center;
}

.site-footer p {
    font-size: var(--size-sm);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.site-footer a {
    border-bottom: 1px solid var(--color-border);
    transition: border-color 0.2s ease;
}

.site-footer a:hover {
    border-color: var(--color-text-secondary);
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.footer-nav p {
    line-height: 1 !important;
}

.footer-copy {
    margin-top: var(--space-md);
}


/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .home-heading {
        font-size: 3.5rem;
    }

    .marquee-item {
        height: 280px;
    }

    .project-title,
    .writing-hub-title {
        font-size: 2.6rem;
    }
}


.home-empty-state {
    margin: 0 28px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
}

.home-empty-state h2 {
    margin-top: 0;
    margin-bottom: 10px;
}

.home-empty-state p {
    margin: 0;
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    :root {
        --size-2xl: 2rem;
        --size-xl: 1.6rem;
        --size-lg: 1.3rem;
        --size-md: 1.1rem;
        --space-2xl: 5rem;
        --space-xl: 3rem;
    }

    .home-section {
        padding: 48px 20px;
    }

    .home-heading {
        font-size: 2.6rem;
    }

    .home-body {
        font-size: 1.15rem;
    }

    .marquee-item {
        height: 220px;
        border-radius: 16px;
    }

    .marquee-label {
        font-size: var(--size-xs);
        padding: 6px 10px;
        bottom: 8px;
        left: 8px;
    }

    .project-page,
    .writing-hub,
    .writing-page {
        padding: 28px 20px 60px;
    }

    .project-title,
    .writing-hub-title {
        font-size: 2.2rem;
    }

    .writing-page-title {
        font-size: 2rem;
    }

    .project-images {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .project-img--hero {
        grid-column: 1;
    }

    .spacer-160px {
        height: 80px;
    }
}

@media (max-width: 480px) {
    .home-header {
        padding: 40px 16px 12px;
    }

    .home-section {
        padding: 36px 16px;
    }

    .home-heading {
        font-size: 2rem;
    }

    .home-body {
        font-size: 1.05rem;
    }

    .home-empty-state {
        margin: 0 16px;
        padding: 22px 18px;
    }

    .marquee-item {
        height: 180px;
        border-radius: 12px;
    }

    .project-page,
    .writing-hub,
    .writing-page {
        padding: 20px 16px 48px;
    }

    .project-title,
    .writing-hub-title {
        font-size: 1.8rem;
    }

    .writing-page-title {
        font-size: 1.6rem;
    }

    .spacer-160px {
        height: 48px;
    }
}