:root {
  --darkroom: #0a0b0d;
  --negative: #111316;
  --film: #17191d;
  --paper: #f0eee6;
  --silver: #b7bac0;
  --graphite: #777c85;
  --cobalt: #245cff;
  --coral: #ff6c5f;
  --line: rgba(240, 238, 230, .18);
  --line-soft: rgba(240, 238, 230, .09);
  --focus: #83a4ff;
  --serif: 'Noto Serif Bengali', 'Bangla MN', 'Vrinda', serif;
  --sans: 'Noto Sans Bengali', 'Bangla Sangam MN', 'Vrinda', sans-serif;
  --space: clamp(4rem, 10vw, 9rem);
  --gutter: clamp(1.15rem, 4vw, 4.5rem);
}

* { box-sizing: border-box; }
html { color-scheme: dark; scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--darkroom); color: var(--paper); font-family: var(--sans); font-size: 1rem; line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .22em; }
button { font: inherit; }
::selection { color: var(--paper); background: var(--cobalt); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 1rem; top: 1rem; z-index: 100; transform: translateY(-180%); background: var(--paper); color: var(--darkroom); padding: .6rem 1rem; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 72px; padding: .8rem var(--gutter); border-bottom: 1px solid transparent; transition: background-color .25s ease, border-color .25s ease; }
.site-header.is-scrolled, .legal-page .site-header { background: rgba(10, 11, 13, .92); border-color: var(--line-soft); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: .7rem; width: max-content; font-weight: 700; text-decoration: none; letter-spacing: .01em; }
.brand-mark { position: relative; width: 28px; height: 22px; border: 1px solid var(--paper); }
.brand-mark::before, .brand-mark::after { content: ''; position: absolute; width: 5px; height: 5px; border-color: var(--coral); }
.brand-mark::before { top: -2px; left: -2px; border-top: 2px solid var(--coral); border-left: 2px solid var(--coral); }
.brand-mark::after { right: -2px; bottom: -2px; border-right: 2px solid var(--coral); border-bottom: 2px solid var(--coral); }
.brand-mark i { position: absolute; width: 8px; height: 8px; border: 2px solid var(--cobalt); border-radius: 50%; inset: 6px auto auto 9px; }
.main-nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2.4rem); }
.main-nav a { position: relative; font-size: .78rem; font-weight: 500; text-decoration: none; color: var(--silver); }
.main-nav a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -.4rem; height: 1px; background: var(--cobalt); transition: right .2s ease; }
.main-nav a:hover::after, .main-nav a:focus-visible::after { right: 0; }
.issue-label { justify-self: end; margin: 0; color: var(--silver); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.issue-label span { color: var(--coral); padding-inline: .35rem; }
.menu-button { display: none; background: transparent; border: 0; color: var(--paper); }

.hero { position: relative; min-height: 100svh; display: grid; align-items: end; overflow: hidden; }
.hero-image, .hero-image img, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image img { object-fit: cover; }
.hero-shade { background: linear-gradient(90deg, rgba(5,6,8,.86) 0%, rgba(5,6,8,.42) 40%, transparent 68%), linear-gradient(0deg, rgba(5,6,8,.9) 0%, transparent 42%); }
.focus-corner { position: absolute; z-index: 2; width: 40px; height: 40px; opacity: .75; }
.focus-corner-a { top: 28%; right: 24%; border-top: 1px solid var(--paper); border-right: 1px solid var(--paper); }
.focus-corner-b { bottom: 28%; right: 38%; border-bottom: 1px solid var(--paper); border-left: 1px solid var(--paper); }
.hero-copy { position: relative; z-index: 3; max-width: 760px; margin: 0 var(--gutter) clamp(8.5rem, 17vh, 12rem); }
.eyebrow { margin: 0 0 1.3rem; color: var(--silver); font-size: .72rem; font-weight: 600; letter-spacing: .1em; }
h1, h2 { margin: 0; font-family: var(--serif); font-weight: 500; line-height: .98; letter-spacing: -.045em; text-wrap: balance; }
h1 { font-size: clamp(4rem, 10vw, 9rem); }
h2 { font-size: clamp(3rem, 7vw, 6.4rem); }
h1 em, h2 em { color: var(--cobalt); font-weight: 400; }
.hero-deck { max-width: 610px; margin: 2rem 0 1.5rem; color: #d7d7d4; font-family: var(--serif); font-size: clamp(1.1rem, 2vw, 1.4rem); }
.text-link { display: inline-flex; gap: 1.5rem; align-items: center; color: var(--paper); font-size: .86rem; font-weight: 600; text-decoration-color: var(--coral); }
.text-link span { color: var(--coral); }
.camera-strip { position: absolute; z-index: 3; inset: auto 0 0; display: grid; grid-template-columns: repeat(4, auto) 1fr; gap: 2rem; align-items: center; padding: 1.1rem var(--gutter); border-top: 1px solid var(--line); background: rgba(10,11,13,.76); backdrop-filter: blur(10px); color: var(--graphite); font-size: .66rem; letter-spacing: .04em; }
.camera-strip b { display: block; color: var(--paper); font-size: .8rem; font-weight: 500; }
.frame-no { justify-self: end; color: var(--coral); }

.section { padding: var(--space) var(--gutter); border-bottom: 1px solid var(--line-soft); }
.section-heading { margin-bottom: clamp(3rem, 8vw, 6rem); }
.split-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; align-items: end; }
.split-heading > p { margin: 0 0 .35rem; max-width: 560px; color: var(--silver); font-family: var(--serif); font-size: 1.15rem; }
.contact-sheet { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.contact-card { background: var(--darkroom); padding: clamp(.7rem, 1.5vw, 1.2rem); }
.crop { aspect-ratio: 4 / 5; overflow: hidden; background: var(--negative); }
.crop img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.84); transition: transform .7s cubic-bezier(.2,.7,.2,1), filter .4s ease; }
.contact-card:hover img { transform: scale(1.025); filter: saturate(1); }
.crop-one img { object-position: 27% center; }
.crop-two img { object-position: 0% center; transform: scale(1.35); }
.contact-card:hover .crop-two img { transform: scale(1.39); }
.crop-three img { object-position: 82% center; }
.contact-meta { position: relative; padding: 1.2rem .2rem .3rem 3.1rem; }
.contact-meta > span { position: absolute; left: .2rem; top: 1.55rem; color: var(--coral); font-size: .65rem; }
.contact-meta h3 { margin: 0; font-family: var(--serif); font-size: 1.45rem; font-weight: 500; }
.contact-meta p { margin: .5rem 0 0; color: var(--graphite); font-size: .85rem; }

.composition { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); gap: clamp(3rem, 7vw, 8rem); align-items: center; }
.editorial-figure, .landscape-figure { margin: 0; }
.image-stage { position: relative; overflow: hidden; background: var(--negative); }
.composition-stage { aspect-ratio: 3 / 4; }
.composition-stage img { width: 100%; height: 100%; object-fit: cover; }
.thirds-grid { position: absolute; inset: 0; opacity: .25; background: linear-gradient(90deg, transparent 33.2%, var(--paper) 33.3%, var(--paper) 33.45%, transparent 33.55%, transparent 66.5%, var(--paper) 66.6%, var(--paper) 66.75%, transparent 66.85%), linear-gradient(0deg, transparent 33.2%, var(--paper) 33.3%, var(--paper) 33.45%, transparent 33.55%, transparent 66.5%, var(--paper) 66.6%, var(--paper) 66.75%, transparent 66.85%); }
.subject-pin { position: absolute; top: 43%; left: 61%; width: 34px; height: 34px; border: 1px solid var(--coral); border-radius: 50%; }
.subject-pin::before, .subject-pin::after { content: ''; position: absolute; background: var(--coral); }
.subject-pin::before { width: 44px; height: 1px; left: -6px; top: 16px; }
.subject-pin::after { height: 44px; width: 1px; top: -6px; left: 16px; }
figcaption { display: grid; grid-template-columns: auto 1fr; gap: 1rem; margin-top: 1rem; color: var(--graphite); font-size: .74rem; line-height: 1.6; }
figcaption span { color: var(--paper); white-space: nowrap; }
.lesson-copy h2 { margin-bottom: 3.2rem; }
.lesson-list { list-style: none; margin: 0; padding: 0; }
.lesson-list li { display: grid; grid-template-columns: 2.3rem 1fr; gap: 1rem; padding: 1.4rem 0; border-top: 1px solid var(--line); }
.lesson-list li > span { color: var(--coral); font-size: .68rem; }
.lesson-list h3, .exposure-lab h3, .ethics-grid h3 { margin: 0; font-family: var(--serif); font-size: 1.25rem; font-weight: 500; }
.lesson-list p { margin: .4rem 0 0; color: var(--graphite); font-size: .84rem; }

.light-section { background: var(--paper); color: var(--darkroom); }
.light-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 7vw; align-items: end; }
.light-copy .eyebrow { color: #555962; grid-column: 1 / -1; }
.light-copy h2 em { color: var(--cobalt); }
.lead { max-width: 540px; margin: 0 0 .5rem; font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.5rem); }
.exposure-lab { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 5rem; border-top: 1px solid rgba(10,11,13,.2); border-bottom: 1px solid rgba(10,11,13,.2); }
.exposure-lab article { position: relative; min-height: 330px; padding: 2rem; border-right: 1px solid rgba(10,11,13,.2); }
.exposure-lab article:last-child { border-right: 0; }
.swatch { display: block; width: 100%; height: 9px; margin-bottom: 3rem; }
.swatch.shadow { background: var(--darkroom); }
.swatch.cobalt { background: var(--cobalt); }
.swatch.highlight { background: linear-gradient(90deg, #d8d4c9, #fff); }
.lab-no { color: #666a72; font-size: .66rem; }
.exposure-lab h3 { font-size: 1.45rem; }
.exposure-lab article > p:not(.lab-no) { color: #50545c; font-size: .88rem; }
.exposure-lab small { position: absolute; left: 2rem; bottom: 2rem; color: var(--cobalt); font-weight: 600; }

.settings { position: relative; display: grid; grid-template-columns: .75fr 1.25fr; gap: 7vw; }
.settings-heading h2 { font-size: clamp(3rem, 6vw, 5.5rem); }
.settings-panel { display: grid; grid-template-columns: 150px 1fr; gap: clamp(2rem, 5vw, 5rem); }
.dial { position: sticky; top: 120px; width: 150px; height: 150px; display: grid; place-content: center; align-self: start; border: 1px solid var(--line); border-radius: 50%; text-align: center; background: repeating-conic-gradient(from -3deg, var(--silver) 0 .6deg, transparent .6deg 6deg); box-shadow: inset 0 0 0 14px var(--darkroom), inset 0 0 0 15px var(--line); }
.dial::after { content: ''; position: absolute; inset: 29px; border-radius: 50%; background: var(--negative); z-index: -1; }
.dial span { font-family: var(--serif); font-size: 2.5rem; line-height: 1; }
.dial small { color: var(--coral); }
.settings-list { margin: 0; }
.settings-list > div { display: grid; grid-template-columns: 1fr auto; gap: .3rem 1.5rem; padding: 1.4rem 0; border-top: 1px solid var(--line); }
.settings-list dt { font-family: var(--serif); font-size: 1.25rem; }
.settings-list dd { margin: 0; color: var(--cobalt); font-weight: 600; }
.settings-list p { grid-column: 1 / -1; margin: 0; color: var(--graphite); font-size: .8rem; }
.field-note { grid-column: 2; max-width: 500px; margin: 0 0 0 auto; padding: 1.3rem 0 0 3rem; border-top: 1px solid var(--coral); }
.field-note span { color: var(--coral); font-size: .67rem; }
.field-note p { margin: .5rem 0 0; color: var(--silver); font-family: var(--serif); }

.landscapes { padding-inline: 0; }
.landscape-title-row { display: flex; justify-content: space-between; align-items: end; padding: 0 var(--gutter) clamp(3rem, 7vw, 6rem); }
.vertical-note { margin: 0; color: var(--graphite); font-size: .65rem; writing-mode: vertical-rl; }
.landscape-stage { aspect-ratio: 16 / 8.2; }
.landscape-stage > img { width: 100%; height: 100%; object-fit: cover; }
.landscape-figure figcaption { margin-inline: var(--gutter); grid-template-columns: 1fr; max-width: 620px; font-family: var(--serif); font-size: .92rem; }
.image-note { position: absolute; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--paper); border-radius: 50%; background: rgba(10,11,13,.7); color: var(--paper); cursor: pointer; backdrop-filter: blur(5px); transition: background .2s ease, transform .2s ease; }
.image-note:hover, .image-note:focus-visible { background: var(--cobalt); transform: scale(1.08); }
.note-one { left: 31%; bottom: 15%; }
.note-two { right: 28%; top: 39%; }
.note-popover { position: absolute; left: clamp(1rem, calc(var(--note-x) + 48px), calc(100% - 300px)); top: clamp(1rem, var(--note-y), calc(100% - 120px)); width: min(280px, calc(100% - 2rem)); padding: 1rem; background: rgba(10,11,13,.9); border: 1px solid var(--line); backdrop-filter: blur(8px); font-size: .78rem; }
.note-popover strong, .note-popover span { display: block; }
.note-popover strong { color: var(--coral); margin-bottom: .35rem; }
.note-popover span { color: var(--silver); }

.challenge { position: relative; display: grid; grid-template-columns: .45fr 1.2fr .35fr; gap: 7vw; align-items: center; background: var(--cobalt); overflow: hidden; }
.challenge::before { content: ''; position: absolute; width: 55vw; height: 55vw; right: -23vw; top: -25vw; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; box-shadow: 0 0 0 8vw rgba(255,255,255,.04), 0 0 0 16vw rgba(255,255,255,.03); }
.challenge-index { position: relative; display: flex; flex-direction: column; color: rgba(255,255,255,.6); }
.challenge-index span { font-size: .7rem; }
.challenge-index strong { color: var(--paper); font-family: var(--serif); font-size: clamp(4rem, 9vw, 8rem); font-weight: 400; line-height: 1; }
.challenge-copy { position: relative; max-width: 720px; }
.eyebrow.coral { color: #ffd0cb; }
.challenge-copy h2 { color: var(--paper); margin-bottom: 1.5rem; }
.challenge-copy > p:not(.eyebrow):not(.copy-status) { font-family: var(--serif); font-size: 1.2rem; }
.challenge-copy ul { display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; padding: 0; list-style: none; color: #dce4ff; font-size: .78rem; }
.challenge-copy li::before { content: '×'; color: var(--coral); margin-right: .5rem; }
.copy-challenge { margin-top: 1.2rem; border: 1px solid rgba(255,255,255,.55); background: transparent; color: var(--paper); padding: .75rem 1rem; cursor: pointer; transition: background .2s ease, color .2s ease; }
.copy-challenge:hover { background: var(--paper); color: var(--cobalt); }
.copy-status { min-height: 1.5em; margin: .5rem 0 0; font-size: .75rem; color: #dce4ff; }
.challenge-target { position: relative; width: 120px; height: 120px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; }
.challenge-target::before, .challenge-target::after { content: ''; position: absolute; background: rgba(255,255,255,.55); }
.challenge-target::before { width: 160px; height: 1px; top: 59px; left: -20px; }
.challenge-target::after { height: 160px; width: 1px; top: -20px; left: 59px; }
.challenge-target span { position: absolute; inset: 29px; border: 1px solid var(--coral); border-radius: 50%; }
.challenge-target i { position: absolute; width: 5px; height: 5px; background: var(--paper); border-radius: 50%; inset: 57px; }

.ethics { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; }
.ethics h2 { font-size: clamp(2.8rem, 5.5vw, 5rem); }
.ethics-grid { display: grid; grid-template-columns: 1fr 1fr; }
.ethics-grid article { min-height: 220px; padding: 1.6rem; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.ethics-grid span { color: var(--coral); font-size: .65rem; }
.ethics-grid h3 { margin-top: 1.8rem; }
.ethics-grid p { color: var(--graphite); font-size: .82rem; }

.site-footer { display: grid; grid-template-columns: 1fr auto 1fr; gap: 3rem; align-items: end; padding: 4rem var(--gutter); background: #07080a; }
.footer-brand { display: grid; grid-template-columns: auto 1fr; gap: 0 .75rem; align-items: center; }
.footer-brand p { grid-column: 1 / -1; margin: 1rem 0 0; color: var(--graphite); font-size: .76rem; }
.site-footer nav { display: flex; gap: 1.5rem; }
.site-footer nav a { color: var(--silver); font-size: .74rem; }
.site-footer nav a[aria-current='page'] { color: var(--coral); }
.copyright { justify-self: end; margin: 0; color: var(--graphite); font-size: .68rem; text-align: right; }

.legal-main { padding-top: 72px; }
.legal-hero { padding: clamp(5rem, 12vw, 10rem) var(--gutter) clamp(4rem, 8vw, 7rem); border-bottom: 1px solid var(--line); }
.legal-hero h1 { font-size: clamp(4rem, 9vw, 8rem); }
.legal-hero > p:last-child { margin: 2rem 0 0; color: var(--graphite); font-size: .75rem; }
.legal-layout { display: grid; grid-template-columns: minmax(180px, .35fr) minmax(0, 1fr); gap: 8vw; padding: var(--space) var(--gutter); }
.legal-aside { position: sticky; top: 110px; align-self: start; display: flex; flex-direction: column; gap: .65rem; padding-top: 1rem; border-top: 1px solid var(--coral); }
.legal-aside p { margin: 0 0 .5rem; color: var(--coral); font-size: .7rem; }
.legal-aside a { width: max-content; color: var(--graphite); font-size: .76rem; }
.legal-copy { max-width: 820px; }
.legal-intro { margin: 0 0 4rem; font-family: var(--serif); font-size: clamp(1.25rem, 2.5vw, 1.7rem); color: var(--silver); }
.legal-copy section { scroll-margin-top: 100px; padding: 2.2rem 0; border-top: 1px solid var(--line); }
.legal-copy h2 { margin-bottom: 1.2rem; font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -.02em; line-height: 1.25; }
.legal-copy p, .legal-copy li { color: var(--silver); font-size: .93rem; }
.legal-copy a { color: var(--paper); text-decoration-color: var(--cobalt); }

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .issue-label { display: none; }
  .menu-button { display: grid; width: 42px; height: 42px; place-content: center; gap: 7px; justify-self: end; cursor: pointer; }
  .menu-button i { display: block; width: 24px; height: 1px; background: currentColor; transition: transform .2s ease; }
  .menu-button[aria-expanded='true'] i:first-of-type { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded='true'] i:last-of-type { transform: translateY(-4px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 72px 0 auto; display: none; flex-direction: column; align-items: flex-start; padding: 2rem var(--gutter) 3rem; background: rgba(10,11,13,.98); border-bottom: 1px solid var(--line); }
  .main-nav.is-open { display: flex; }
  .main-nav a { font-family: var(--serif); font-size: 1.6rem; color: var(--paper); }
  .split-heading, .light-copy, .settings, .ethics { grid-template-columns: 1fr; }
  .composition { grid-template-columns: 1fr; }
  .composition-stage { aspect-ratio: 4 / 3; }
  .lesson-copy { max-width: 680px; }
  .light-copy .eyebrow { grid-column: auto; }
  .settings-heading { margin-bottom: 0; }
  .field-note { grid-column: 1; }
  .challenge { grid-template-columns: .35fr 1fr; }
  .challenge-target { display: none; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer nav { grid-row: 2; grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .hero-copy { margin-bottom: 10rem; }
  h1 { font-size: clamp(3rem, 13vw, 4.2rem); }
  h2 { font-size: clamp(2.8rem, 14vw, 4.4rem); }
  .hero-shade { background: linear-gradient(0deg, rgba(5,6,8,.95) 0%, rgba(5,6,8,.28) 68%, rgba(5,6,8,.25)); }
  .hero-image img { object-position: 62% center; }
  .camera-strip { grid-template-columns: repeat(2, 1fr); gap: .8rem 1.5rem; }
  .camera-strip span:nth-child(4), .camera-strip .frame-no { display: none; }
  .contact-sheet, .exposure-lab, .ethics-grid { grid-template-columns: 1fr; }
  .contact-card { padding-bottom: 2rem; }
  .crop { aspect-ratio: 4 / 3; }
  .exposure-lab article { min-height: 270px; border-right: 0; border-bottom: 1px solid rgba(10,11,13,.2); }
  .settings-panel { grid-template-columns: 1fr; }
  .dial { position: relative; top: auto; }
  .field-note { padding-left: 0; }
  .landscape-title-row { align-items: start; }
  .landscape-stage { aspect-ratio: 4 / 5; }
  .landscape-stage > img { object-position: 51% center; }
  .vertical-note { display: none; }
  .note-one { left: 25%; bottom: 18%; }
  .note-two { right: 17%; top: 35%; }
  .challenge { grid-template-columns: 1fr; }
  .challenge-index { flex-direction: row; gap: 1rem; align-items: end; }
  .challenge-index strong { font-size: 4rem; }
  .ethics-grid article { border-left: 0; }
  .site-footer { grid-template-columns: 1fr; align-items: start; }
  .site-footer nav { grid-row: auto; grid-column: auto; flex-wrap: wrap; }
  .copyright { justify-self: start; text-align: left; }
  .legal-layout { grid-template-columns: 1fr; }
  .legal-aside { position: static; display: grid; grid-template-columns: 1fr 1fr; }
  .legal-aside p { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (prefers-contrast: more) {
  :root { --line: rgba(240,238,230,.42); --line-soft: rgba(240,238,230,.28); --graphite: #b7bac0; }
}