/* ============================================================
   June Creative — dựng lại theo UI gốc (tối giản trắng/đen)
   Font: Jost (kiểu Futura, gần với logo/typography gốc)
   ============================================================ */

:root {
    --paper: #ffffff;
    --ink:   #0a0a0a;
    --soft:  #1a1a1a;
    --muted: #8c8c8c;
    --line:  #e7e7e7;
    --pad-x: clamp(1.5rem, 5vw, 4rem);
    --pad-y: clamp(1.4rem, 3vw, 2.4rem);
    --header-h: clamp(72px, 9vw, 104px);
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { margin: 0 0 1em; }
ol, ul { margin: 0; padding: 0; list-style: none; }

.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--ink); color: var(--paper);
    padding: .6rem 1rem; z-index: 200;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------------- Header / Nav ---------------- */
.site-header {
    position: fixed; inset: 0 0 auto 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--pad-y) var(--pad-x);
    pointer-events: none;
}
.site-header a, .site-header button { pointer-events: auto; }

.lang-toggle {
    font-size: .8rem; letter-spacing: .12em; font-weight: 400;
    color: var(--muted); display: inline-flex; gap: .35em; align-items: center;
}
.lang-toggle .is-active { color: var(--ink); font-weight: 600; }
.lang-toggle .lang-sep { color: var(--line); }
.lang-toggle:hover { color: var(--ink); }

.nav { display: flex; gap: clamp(1.1rem, 2.6vw, 2.4rem); align-items: center; }
.nav-link {
    font-size: clamp(.85rem, 1.05vw, 1rem);
    text-transform: uppercase; letter-spacing: .1em; font-weight: 400;
    position: relative; color: var(--soft);
    transition: color .3s var(--ease);
}
.nav-link::after {
    content: ''; position: absolute; left: 0; bottom: -6px;
    width: 100%; height: 1.5px; background: var(--ink);
    transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease);
}
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-link.is-active { font-weight: 700; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block; width: 26px; height: 2px; background: var(--ink);
    transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle span + span { margin-top: 6px; }

/* ---------------- Main ---------------- */
.site-main {
    min-height: 100vh;
    padding: calc(var(--header-h) + clamp(1rem, 4vh, 3rem)) var(--pad-x) 0;
    display: flex; flex-direction: column;
}

.section-label {
    font-size: .72rem; text-transform: uppercase; letter-spacing: .22em;
    color: var(--muted); margin: 0 0 clamp(1.4rem, 4vh, 3rem);
}

/* ---------------- WORKS (index) ---------------- */
.page-works .site-main { justify-content: center; }
.works { flex: 1; display: flex; flex-direction: column; justify-content: center;
         padding-bottom: clamp(2rem, 6vh, 5rem); }

.work-list { border-top: 1px solid var(--line); }
.work-item { border-bottom: 1px solid var(--line); }

.work-link {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: baseline; gap: clamp(1rem, 4vw, 3rem);
    padding: clamp(1.1rem, 3vh, 2.1rem) 0;
    transition: color .35s var(--ease), padding-left .4s var(--ease);
}
.work-link:hover { padding-left: clamp(.6rem, 1.5vw, 1.4rem); }
.work-index {
    font-size: .8rem; color: var(--muted); letter-spacing: .1em;
    align-self: flex-start; padding-top: .6em;
}
.work-titles { display: flex; flex-direction: column; }
.work-title {
    font-size: clamp(2rem, 6.5vw, 5.5rem); font-weight: 300; line-height: .98;
    letter-spacing: -.01em; text-transform: uppercase;
    transition: opacity .35s var(--ease);
}
.work-subtitle {
    font-size: clamp(.85rem, 1.4vw, 1.05rem); color: var(--muted);
    text-transform: uppercase; letter-spacing: .14em; margin-top: .7em;
}
.work-meta {
    display: flex; flex-direction: column; align-items: flex-end; text-align: right;
    gap: .3em; align-self: flex-start; padding-top: .8em;
}
.work-cat { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--soft); }
.work-year { font-size: .78rem; color: var(--muted); letter-spacing: .1em; }

/* Khi rê chuột lên 1 item, làm mờ các item còn lại */
@media (hover: hover) {
    .work-list:hover .work-title { opacity: .32; }
    .work-list:hover .work-item:hover .work-title { opacity: 1; }
}

/* Thumbnail nổi theo con trỏ */
.cursor-cover {
    position: fixed; top: 0; left: 0; z-index: 60; pointer-events: none;
    width: clamp(200px, 22vw, 320px); aspect-ratio: 4 / 5;
    border-radius: 2px; opacity: 0; transform: translate(-50%, -50%) scale(.85);
    transition: opacity .35s var(--ease), transform .35s var(--ease);
    will-change: transform; background-size: cover; background-position: center;
}
.cursor-cover.is-visible { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ---------------- ABOUT ---------------- */
.page-about .site-main { justify-content: space-between; }
.about { flex: 1; display: flex; flex-direction: column; justify-content: center;
         padding-bottom: clamp(2rem, 8vh, 6rem); }
.about-grid {
    display: grid; grid-template-columns: 1fr 1.3fr 1.3fr;
    gap: clamp(1.5rem, 4vw, 4rem); align-items: start;
    margin-bottom: clamp(3rem, 12vh, 9rem);
}
.brand-logo { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-word { font-size: clamp(2.4rem, 4vw, 3.4rem); font-weight: 500; letter-spacing: .08em; }
.brand-sub {
    font-size: .72rem; letter-spacing: .5em; text-transform: uppercase;
    color: var(--soft); margin-top: .5em; padding-left: .2em;
}
.about-col p { font-size: clamp(.92rem, 1.05vw, 1.05rem); line-height: 1.65; color: var(--soft); }
.about-col p:last-child { margin-bottom: 0; }

.about-cta {
    display: inline-block; align-self: flex-start;
    font-size: clamp(2.6rem, 9vw, 8rem); font-weight: 300; line-height: 1;
    letter-spacing: -.01em; text-transform: uppercase;
    transition: opacity .3s var(--ease);
}
.about-cta:hover { opacity: .55; }

/* ---------------- CONTACT ---------------- */
.page-contact .site-main { justify-content: center; }
.contact { flex: 1; display: flex; flex-direction: column; justify-content: center;
           padding-bottom: clamp(2rem, 5vh, 4rem); }
.contact-hero {
    display: flex; justify-content: space-between; align-items: flex-end;
    flex-wrap: nowrap; gap: 1.5rem clamp(2rem, 6vw, 6rem);
    margin-bottom: clamp(2.5rem, 8vh, 6rem);
}
.contact-head {
    margin: 0; font-size: clamp(2.6rem, 8.5vw, 7.5rem); font-weight: 300;
    line-height: .98; letter-spacing: -.01em; text-transform: uppercase;
    max-width: 9ch; flex: 0 1 auto;
}
.contact-sub {
    margin: 0 0 .6rem; max-width: 30ch; text-align: right; flex: 0 0 auto;
    font-size: clamp(.85rem, 1.2vw, 1.05rem); text-transform: uppercase;
    letter-spacing: .1em; color: var(--soft); line-height: 1.5;
}

.contact-info {
    display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.5rem;
    padding-top: clamp(1.2rem, 3vh, 2rem); border-top: 1px solid var(--line);
}
.contact-info p { margin: 0; }
.ci-col--center { text-align: center; }
.ci-col--right { text-align: right; }
.ci-disc, .ci-loc, .ci-line {
    font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--soft);
    line-height: 1.7;
}
.ci-line a:hover, .contact-sub a:hover { color: var(--muted); }
.ci-line strong { font-weight: 600; }
.ci-social { display: inline-flex; gap: .7rem; justify-content: center; margin-top: .6rem; color: var(--soft); }
.ci-social a { transition: color .3s var(--ease); }
.ci-social a:hover { color: var(--muted); }

/* Form liên hệ */
.contact-form-wrap { margin-top: clamp(3rem, 10vh, 7rem); max-width: 760px; }
.contact-form {
    display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.6rem, 4vw, 2.6rem) 2rem;
}
.field { position: relative; }
.field--full { grid-column: 1 / -1; }
.field input, .field textarea {
    width: 100%; border: 0; border-bottom: 1.5px solid var(--line);
    background: transparent; color: var(--ink); font: inherit; padding: .5rem 0;
    resize: vertical; transition: border-color .3s var(--ease);
}
.field textarea { min-height: 3rem; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); }
.field label {
    position: absolute; left: 0; top: .5rem; color: var(--muted);
    text-transform: uppercase; letter-spacing: .1em; font-size: .82rem;
    pointer-events: none; transition: transform .25s var(--ease), font-size .25s var(--ease), color .25s var(--ease);
    transform-origin: left;
}
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label {
    transform: translateY(-1.5rem) scale(.82); color: var(--soft);
}
.field.has-error input, .field.has-error textarea { border-color: #c0392b; }
.field-err { display: block; margin-top: .4rem; font-size: .72rem; letter-spacing: .06em; color: #c0392b; text-transform: uppercase; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.btn-send {
    grid-column: 1 / -1; justify-self: start;
    display: inline-flex; align-items: center; gap: .6rem;
    background: var(--ink); color: var(--paper); border: 0; cursor: pointer;
    font: inherit; text-transform: uppercase; letter-spacing: .12em; font-size: .82rem;
    padding: 1rem 1.8rem; border-radius: 40px; transition: opacity .3s var(--ease), gap .3s var(--ease);
}
.btn-send:hover { opacity: .82; gap: 1rem; }
.form-success {
    font-size: 1.05rem; letter-spacing: .02em; color: var(--soft);
    border-left: 2px solid var(--ink); padding-left: 1.2rem;
}

/* ---------------- WORK DETAIL ---------------- */
.page-work .site-main { justify-content: flex-start; }
.work-detail { flex: 1; padding-bottom: clamp(3rem, 8vh, 6rem); }
.work-back {
    display: inline-block; font-size: .78rem; text-transform: uppercase;
    letter-spacing: .12em; color: var(--muted); margin-bottom: clamp(1.5rem, 5vh, 3rem);
}
.work-back:hover { color: var(--ink); }
.work-hero-title {
    margin: 0; display: flex; flex-direction: column;
    font-size: clamp(2.6rem, 9vw, 8rem); font-weight: 300; line-height: .96;
    letter-spacing: -.01em;
}
.work-hero-meta {
    display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem;
    padding: clamp(1rem, 3vh, 1.8rem) 0; margin-top: clamp(1.5rem, 4vh, 2.5rem);
    border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.whm-col { display: flex; flex-direction: column; gap: .2em; }
.whm-col--center { text-align: center; align-items: center; }
.whm-col--right { text-align: right; align-items: flex-end; }
.work-cover-big { width: 100%; aspect-ratio: 16 / 9; margin: clamp(2rem, 6vh, 4rem) 0; border-radius: 2px; }
.work-body { max-width: 60ch; margin: 0 auto clamp(3rem, 10vh, 7rem); }
.work-desc { font-size: clamp(1.05rem, 1.6vw, 1.5rem); line-height: 1.55; font-weight: 300; text-align: center; }
.work-next {
    display: flex; flex-direction: column; gap: .6rem; align-items: center;
    padding-top: clamp(2rem, 5vh, 3rem); border-top: 1px solid var(--line); text-align: center;
}
.work-next-title {
    font-size: clamp(1.8rem, 5vw, 3.5rem); font-weight: 300; text-transform: uppercase;
    transition: opacity .3s var(--ease);
}
.work-next:hover .work-next-title { opacity: .55; }

/* ---------------- Footer ---------------- */
.site-footer { padding: var(--pad-y) var(--pad-x) clamp(1.4rem, 3vw, 2.4rem); }
.footer-inner {
    display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem;
    padding-top: clamp(1rem, 3vh, 1.6rem); border-top: 1px solid var(--line);
}
.site-footer.is-minimal .footer-inner { grid-template-columns: 1fr auto 1fr; }
.footer-col { display: flex; flex-direction: column; gap: .15em; }
.footer-col--center { text-align: center; align-items: center; justify-content: center; }
.footer-col--right { text-align: right; align-items: flex-end; }
.footer-label { font-size: .74rem; text-transform: uppercase; letter-spacing: .14em; color: var(--muted); }
.footer-strong { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--soft); }
.footer-mark { font-size: .74rem; text-transform: uppercase; letter-spacing: .14em; color: var(--soft); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .about-brand { margin-bottom: .5rem; }
    .contact-info { grid-template-columns: 1fr; text-align: left; gap: 1.6rem; }
    .ci-col--center, .ci-col--right { text-align: left; }
    .ci-social { justify-content: flex-start; }
    .work-hero-meta { grid-template-columns: 1fr; gap: 1rem; }
    .whm-col--center, .whm-col--right { text-align: left; align-items: flex-start; }
}

@media (max-width: 720px) {
    .nav {
        position: fixed; inset: 0; background: var(--paper);
        flex-direction: column; justify-content: center; align-items: center;
        gap: 2.2rem; transform: translateY(-100%); transition: transform .45s var(--ease);
        z-index: 90;
    }
    .nav.is-open { transform: translateY(0); }
    .nav-link { font-size: 1.6rem; }
    .nav-toggle { display: block; z-index: 95; }
    body.nav-open .nav-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
    body.nav-open .nav-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }

    .work-link { grid-template-columns: auto 1fr; }
    .work-meta { grid-column: 1 / -1; flex-direction: row; justify-content: flex-start;
                 gap: 1rem; align-items: baseline; padding-top: .4em; }
    .contact-hero { flex-direction: column; align-items: flex-start; }
    .contact-sub { text-align: left; }
    .contact-form { grid-template-columns: 1fr; }
    .footer-inner, .site-footer.is-minimal .footer-inner { grid-template-columns: 1fr; gap: 1.2rem; text-align: left; }
    .footer-col--center, .footer-col--right { text-align: left; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto; }
}