/* ==========================================
   He Rengao - Printmaking Artist
   Site Stylesheet
   ========================================== */

:root {
    --bg: #fbfbf8; /* warm white */
    --fg: #111111; /* near-black */
    --muted: #5a5a5a;
    --line: rgba(17,17,17,.10);
    --line-strong: rgba(17,17,17,.16);
    --pad-desktop: 64px;
    --pad-mobile: 18px;
    --nav-h: 72px;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
    color: var(--fg);
    background: var(--bg);
}

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

a:focus-visible, button:focus-visible {
    outline: 2px solid rgba(17,17,17,.45);
    outline-offset: 3px;
    border-radius: 10px;
}

/* =========================
   Top Navigation (Layout A)
   ========================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    background: transparent;
    transition: background-color .2s ease, border-color .2s ease, backdrop-filter .2s ease;
    border-bottom: 1px solid transparent;
}

/* subtle "after scroll" state */
.site-header.is-scrolled {
    background: rgba(251,251,248,.92);
    backdrop-filter: blur(10px);
    border-bottom-color: var(--line);
}

.nav-wrap {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--pad-desktop);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    letter-spacing: .02em;
    font-weight: 520;
    font-size: 19px;
    white-space: nowrap;
}

/* Optional small subtitle line (remove if you prefer) */
.brand small {
    font-weight: 400;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-top: 4px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    font-size: 14.5px;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.nav-links a {
    position: relative;
    padding: 8px 2px;
    color: rgba(17,17,17,.88);
    transition: color .15s ease;
}

.nav-links a:hover {
    color: rgba(17,17,17,1);
}

/* underline on hover */
.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 3px;
    height: 1px;
    background: rgba(17,17,17,.55);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .18s ease;
}

.nav-links a:hover::after {
    transform: scaleX(1);
}

/* active link underline (set aria-current="page") */
.nav-links a[aria-current="page"] {
    color: rgba(17,17,17,1);
}

.nav-links a[aria-current="page"]::after {
    transform: scaleX(1);
    background: rgba(17,17,17,.70);
}

/* Mobile menu button */
.menu-btn {
    display: none;
    appearance: none;
    border: 1px solid rgba(17,17,17,.16);
    background: rgba(255,255,255,.55);
    height: 40px;
    width: 44px;
    border-radius: 999px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: border-color .15s ease, background-color .15s ease;
}

.menu-btn:hover {
    border-color: rgba(17,17,17,.22);
    background: rgba(255,255,255,.72);
}

.menu-btn svg {
    display: block;
}

/* =========================
   Mobile Drawer
   ========================= */
.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.38);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
    z-index: 1100;
}

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: min(86vw, 360px);
    background: rgba(251,251,248,.98);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform .22s ease;
    z-index: 1200;
    display: flex;
    flex-direction: column;
}

.drawer-header {
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    border-bottom: 1px solid var(--line);
}

.drawer-title {
    font-weight: 560;
    letter-spacing: .02em;
}

.drawer-close {
    appearance: none;
    border: 1px solid rgba(17,17,17,.16);
    background: rgba(255,255,255,.65);
    height: 36px;
    width: 40px;
    border-radius: 999px;
    cursor: pointer;
}

.drawer-nav {
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.drawer-nav a {
    padding: 12px 10px;
    border-radius: 14px;
    font-size: 16px;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: rgba(17,17,17,.92);
}

.drawer-nav a:hover {
    background: rgba(17,17,17,.06);
}

.drawer-nav a[aria-current="page"] {
    background: rgba(17,17,17,.08);
}

/* Open states controlled by [data-menu-open="true"] on body */
body[data-menu-open="true"] .drawer-backdrop {
    opacity: 1;
    pointer-events: auto;
}

body[data-menu-open="true"] .drawer {
    transform: translateX(0);
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 860px) {
    .nav-wrap {
        padding: 0 var(--pad-mobile);
    }

    .nav-links {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

    .brand {
        font-size: 18px;
    }

    .brand small {
        display: none;
    }
    /* optional: hide subtitle on mobile */
}

/* Demo page content spacing */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px var(--pad-desktop);
}

@media (max-width: 860px) {
    main {
        padding: 32px var(--pad-mobile);
    }
}

.placeholder {
    border: 1px dashed var(--line-strong);
    border-radius: 18px;
    padding: 22px;
    color: var(--muted);
}

/* =========================
   Works Page
   ========================= */
.page-header {
    max-width: 1100px;
    margin: 0 auto 48px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 500;
    letter-spacing: .02em;
    margin: 0 0 12px;
}

.page-intro {
    font-size: 14.5px;
    color: rgba(17,17,17,.65);
    line-height: 1.6;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 36px 28px;
}

.work-card figure {
    margin: 0;
}

.work-card img {
    width: 100%;
    height: auto;
    display: block;
    background: #f2f2ee;
}

.work-card figcaption {
    margin-top: 10px;
    font-size: 13.5px;
    line-height: 1.4;
}

.work-title {
    display: block;
    font-weight: 500;
}

.work-meta {
    display: block;
    color: rgba(17,17,17,.6);
    margin-top: 2px;
}

/* hover – 非按钮感 */
.work-card a:hover .work-title {
    text-decoration: underline;
}

/* =========================
   Single Work Page
   ========================= */
.work-header {
    max-width: 1100px;
    margin: 0 auto 48px;
}

.work-title {
    font-size: 30px;
    font-weight: 500;
    letter-spacing: .02em;
    margin: 0 0 10px;
}

.work-meta {
    font-size: 14px;
    color: rgba(17,17,17,.65);
    display: flex;
    gap: 16px;
}

.work-layout {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
}

.work-image img {
    width: 100%;
    height: auto;
    display: block;
    background: #f2f2ee;
}

.image-caption {
    font-size: 12.5px;
    color: rgba(17,17,17,.55);
    margin-top: 6px;
}

.work-info {
    font-size: 14px;
}

.work-specs {
    margin: 0;
}

.work-specs div {
    display: grid;
    grid-template-columns: 120px 1fr;
    padding: 6px 0;
}

.work-specs dt {
    font-weight: 500;
    color: rgba(17,17,17,.85);
}

.work-specs dd {
    margin: 0;
    color: rgba(17,17,17,.75);
}

.work-note {
    margin-top: 24px;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(17,17,17,.7);
}

.work-nav {
    max-width: 1100px;
    margin: 64px auto 0;
    font-size: 14px;
}

.work-nav a {
    color: rgba(17,17,17,.75);
}

.work-nav a:hover {
    text-decoration: underline;
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 860px) {
    .work-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .work-title {
        font-size: 26px;
    }
}

/* =========================
   Home Page
   ========================= */
.home-hero {
    max-width: 1100px;
    margin: 0 auto 14px;
}

.hero-figure {
    margin: 0;
}

.hero-figure img {
    width: 100%;
    height: auto;
    display: block;
    background: #f2f2ee;
}

.hero-caption {
    margin-top: 10px;
    line-height: 1.35;
}

.hero-title {
    display: block;
    font-weight: 500;
    letter-spacing: .02em;
}

.hero-meta {
    display: block;
    margin-top: 2px;
    color: rgba(17,17,17,.60);
    font-size: 13.5px;
}

/* 1-line snapshot: subtle, "publication" feel */
.home-snapshot {
    max-width: 1100px;
    margin: 0 auto 44px;
}

.artist-intro {
    margin: 0;
    max-width: 72ch; /* keeps it elegant on wide screens */
    font-size: 14.5px;
    line-height: 1.65;
    color: rgba(17,17,17,.68);
    letter-spacing: .01em;
}

/* Section header */
.home-works {
    max-width: 1100px;
    margin: 0 auto;
}

.section-header h2 {
    margin: 0 0 18px;
    font-size: 16px;
    font-weight: 520;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: rgba(17,17,17,.78);
}

.section-footer {
    margin-top: 22px;
    font-size: 14px;
}

.section-footer a {
    color: rgba(17,17,17,.72);
}

.section-footer a:hover {
    text-decoration: underline;
}

.home-about {
    max-width: 1100px;
    margin: 48px auto 0;
}

/* Responsive: keep the hero + snapshot breathing */
@media (max-width: 860px) {
    .home-hero {
        margin-bottom: 12px;
    }

    .home-snapshot {
        margin-bottom: 34px;
    }

    .artist-intro {
        font-size: 14px;
    }
}

/* =========================
   About Page
   ========================= */
.about-layout {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 52px;
    align-items: start;
}

/* Left media */
.about-media {}

.about-figure {
    margin: 0;
}

.about-figure img {
    width: 100%;
    height: auto;
    display: block;
    background: #f2f2ee;
}

.about-caption {
    margin-top: 10px;
    font-size: 12.5px;
    color: rgba(17,17,17,.55);
    letter-spacing: .02em;
}

/* Right text */
.about-text {
    max-width: 75ch;
}

.about-lede {
    margin: 0 0 18px;
    font-size: 15px;
    line-height: 1.7;
    color: rgba(17,17,17,.75);
    letter-spacing: .01em;
}

.about-body p {
    margin: 0 0 14px;
    font-size: 14.5px;
    line-height: 1.75;
    color: rgba(17,17,17,.70);
    letter-spacing: .01em;
}

.about-body a {
    color: rgba(17,17,17,.82);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.about-body a:hover {
    color: rgba(17,17,17,1);
}

/* Quick links row */
.about-links {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px 20px;
    font-size: 14px;
}

.about-links a {
    color: rgba(17,17,17,.72);
}

.about-links a:hover {
    text-decoration: underline;
}

/* About page responsive */
@media (max-width: 860px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    
    .page-header {
        margin-bottom: 18px;
    }
}

/* =========================
   CV Page
   ========================= */
.cv-actions {
    max-width: 1100px;
    margin: 0 auto 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px 18px;
    font-size: 14px;
}

.cv-link {
    color: rgba(17,17,17,.72);
}

.cv-link:hover {
    text-decoration: underline;
}

.cv {
    max-width: 1100px;
    margin: 0 auto;
}

.cv-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid rgba(17,17,17,.10);
}

.cv-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 22px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(17,17,17,.08);
}

.cv-year {
    font-size: 13.5px;
    letter-spacing: .10em;
    text-transform: uppercase;
    color: rgba(17,17,17,.62);
    padding-top: 2px;
    white-space: nowrap;
}

.cv-content p {
    margin: 0 0 10px;
    font-size: 14.5px;
    line-height: 1.75;
    color: rgba(17,17,17,.72);
    letter-spacing: .01em;
}

.cv-content p:last-child {
    margin-bottom: 0;
}

/* CV page responsive */
@media (max-width: 860px) {
    .cv-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .cv-year {
        padding-top: 0;
    }
}

/* =========================
   Contact Page
   ========================= */
.contact-block {
    max-width: 1100px;
    margin: 0 auto;
    padding-top: 20px;
}

.contact-intro {
    margin: 0 0 14px;
    font-size: 15px;
    line-height: 1.7;
    color: rgba(17,17,17,.72);
    max-width: 65ch;
}

.contact-email {
    margin: 0 0 14px;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: .02em;
}

.contact-email a {
    color: rgba(17,17,17,.88);
    text-decoration: none;
    border-bottom: 1px solid rgba(17,17,17,.35);
    padding-bottom: 2px;
}

.contact-email a:hover {
    border-bottom-color: rgba(17,17,17,.75);
}

.contact-note {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.6;
    color: rgba(17,17,17,.55);
}

/* Contact page responsive */
@media (max-width: 860px) {
    .contact-block {
        padding-top: 10px;
    }
    
    .contact-email {
        font-size: 16.5px;
    }
}