/* =========================================================
   Himani Sheoran — Artist Portfolio
   Design system: "clean modern studio" (white · grotesque · pill buttons)
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --bg:      #f6f3ec;   /* subtle warm off-white — softer than pure white */
  --bg-soft: #ece6da;   /* deeper warm sand for alternating sections */
  --bg-dark: #141414;
  --ink:     #141414;
  --muted:   #6a6a68;
  --faint:   #8f8d88;
  --line:    #e3e1dc;
  --accent:  #141414;

  --sans:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Inter Tight", "Inter", -apple-system, sans-serif;

  --step--1: clamp(0.8rem, 0.76rem + 0.2vw, 0.9rem);
  --step-0:  clamp(0.98rem, 0.94rem + 0.2vw, 1.08rem);
  --step-1:  clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --step-2:  clamp(1.7rem, 1.3rem + 1.6vw, 2.5rem);
  --step-3:  clamp(2.4rem, 1.7rem + 3vw, 4rem);
  --step-4:  clamp(3rem, 2rem + 4.6vw, 5.5rem);

  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --maxw: 1360px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--display); font-weight: 600; line-height: 1.04;
  margin: 0; letter-spacing: -0.02em;
}

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.eyebrow {
  font-family: var(--sans); font-size: var(--step--1);
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); font-weight: 500;
  margin: 0 0 1rem;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(246,243,236,0.88);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease);
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav__inner { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; }
.nav__brand { font-family: var(--display); font-size: 1.3rem; font-weight: 600; letter-spacing: -0.02em; }
.nav__links { display: flex; gap: clamp(1.5rem, 3vw, 2.8rem); list-style: none; margin: 0; padding: 0; }
.nav__links a {
  font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 500;
  color: var(--muted); position: relative; padding: 4px 0; transition: color 0.3s var(--ease);
}
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--ink); }
.nav__links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px; background: var(--ink);
}
.nav__toggle { display: none; background: none; border: 0; cursor: pointer; width: 42px; height: 42px; padding: 9px; z-index: 110; }
.nav__toggle span { display: block; width: 100%; height: 2px; background: var(--ink); margin: 5px 0; transition: transform 0.4s var(--ease), opacity 0.3s var(--ease); }
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--sans); font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 1.05rem 2.1rem; border-radius: 100px; border: 1.5px solid var(--ink);
  background: var(--ink); color: #fff; cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.btn:hover { transform: translateY(-2px); opacity: 0.9; }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; opacity: 1; }
.btn--sm { padding: 0.7rem 1.4rem; font-size: 0.7rem; }
.btn--light { background: #fff; color: var(--ink); border-color: #fff; }

.textlink { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500; border-bottom: 1.5px solid var(--ink); padding-bottom: 3px; }
.textlink svg { transition: transform 0.4s var(--ease); }
.textlink:hover svg { transform: translateX(5px); }

/* ---------- Sections ---------- */
.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--bg-dark); color: #fff; }
.section__head { max-width: 640px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section__title { font-size: var(--step-3); }
.section__lede { color: var(--muted); margin-top: 1.25rem; font-size: var(--step-1); }
.center { text-align: center; margin-inline: auto; }

/* ---------- Hero (split) ---------- */
.hero { padding-top: calc(var(--nav-h) + clamp(2.5rem, 6vw, 5rem)); padding-bottom: clamp(3rem, 6vw, 6rem); }
.hero__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 5vw, 4rem); align-items: start; }
.hero__title { font-size: var(--step-4); letter-spacing: -0.03em; }
.hero__lede { margin-top: 1.75rem; max-width: 46ch; color: var(--muted); font-size: var(--step-1); }
.hero__cta { margin-top: 2.25rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__media { position: relative; overflow: hidden; background: var(--bg-soft); width: 100%; }
.hero__media img { width: 100%; height: auto; display: block; }

/* ---------- Hero slideshow (full-bleed) ---------- */
.hero-slides { position: relative; width: 100vw; margin-left: calc(50% - 50vw); height: min(90vh, 860px); overflow: hidden; background: var(--bg-soft); }
.hero-slides .slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s var(--ease); }
.hero-slides .slide.is-active { opacity: 1; }
.hero-slides .slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-slides__scrim { position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(90deg, rgba(18,16,13,0.6), rgba(18,16,13,0.2) 45%, rgba(18,16,13,0) 68%),
              linear-gradient(0deg, rgba(18,16,13,0.35), transparent 30%); }
.hero-slides__overlay { position: absolute; inset: 0; z-index: 3; display: flex; align-items: flex-end; padding-bottom: clamp(2.5rem, 7vh, 6rem); }
.hero-slides__overlay .eyebrow { color: rgba(255,255,255,0.82); margin-bottom: 0.6rem; }
.hero-slides__overlay h1 { color: #fff; font-size: var(--step-4); line-height: 1; max-width: 15ch; margin: 0 0 1.75rem; text-shadow: 0 2px 30px rgba(0,0,0,0.35); }
.hero-slides__dots { position: absolute; z-index: 4; bottom: 1.4rem; right: clamp(1.25rem, 4vw, 4rem); display: flex; gap: 0.55rem; }
.hero-slides__dots button { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,0.5); cursor: pointer; transition: background 0.3s var(--ease), transform 0.3s var(--ease); }
.hero-slides__dots button.is-active { background: #fff; transform: scale(1.3); }
@media (prefers-reduced-motion: reduce) { .hero-slides .slide { transition: none; } }

/* ---------- Category tiles ("Available works") ---------- */
.cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2vw, 1.75rem); }
@media (max-width: 720px) { .cats { grid-template-columns: 1fr; } }
.cat { position: relative; aspect-ratio: 4/5; overflow: hidden; display: block; background: var(--bg-soft); }
.cat img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.cat:hover img { transform: scale(1.05); }
.cat::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(18,16,13,0.12), rgba(18,16,13,0.5)); }
.cat__label { position: absolute; inset: 0; z-index: 2; display: grid; place-items: center; text-align: center; padding: 1rem;
  color: #fff; font-family: var(--display); font-weight: 600; font-size: clamp(1.4rem, 1rem + 1.5vw, 2.2rem); letter-spacing: -0.01em; text-shadow: 0 2px 18px rgba(0,0,0,0.45); }

/* ---------- Split (text + image) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5.5rem); align-items: center; }
.split--reverse .split__media { order: -1; }
.split__media { aspect-ratio: 4/5; overflow: hidden; background: var(--bg-soft); }
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__media--tall { aspect-ratio: 3/4; }
.prose p { color: var(--muted); margin: 0 0 1.25rem; }
.prose p.lead { color: var(--ink); font-size: var(--step-1); }
.prose h2 { font-size: var(--step-2); margin: 2rem 0 1rem; }

/* ---------- Shop / work grid ---------- */
.filters { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 3rem; }
.chip {
  font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.6rem 1.2rem; border: 1.5px solid var(--line); border-radius: 100px;
  background: transparent; color: var(--muted); cursor: pointer; transition: all 0.3s var(--ease);
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Single column — one work at a time, centred, each shown large and uncropped */
.grid { display: block; }
.card { max-width: 780px; margin: 0 auto clamp(3rem, 6vw, 5.5rem); }
.card.is-hidden { display: none; }
/* Signature feature — shown larger */
.card--wide { max-width: 1040px; }
.card--wide .card__title { font-size: 1.6rem; }
.card__media {
  display: block; width: 100%; padding: 0; border: 0; background: transparent;
  overflow: hidden; cursor: zoom-in; text-align: center;
}
/* Each painting fits fully within the screen height, centred, uncropped */
.card__media img {
  width: auto; max-width: 100%; max-height: 82vh; height: auto;
  margin-inline: auto; display: block; transition: transform 0.9s var(--ease);
}
.card__media:hover img { transform: scale(1.04); }
.card__body { padding-top: 1.1rem; display: flex; flex-direction: column; gap: 0.25rem; }
.card__title { font-size: 1.15rem; font-weight: 600; }
.card__meta { color: var(--muted); font-size: var(--step--1); }
.card__row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 0.85rem; }
.card__price { font-size: 0.9rem; color: var(--ink); font-weight: 500; }

/* ---------- Follow / photo strip ---------- */
.strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(0.75rem, 1.5vw, 1.25rem); }
@media (max-width: 640px) { .strip { grid-template-columns: repeat(2, 1fr); } }
.strip a { aspect-ratio: 1/1; overflow: hidden; background: var(--bg-soft); display: block; }
.strip img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.strip a:hover img { transform: scale(1.06); }

/* ---------- Forms ---------- */
.form-panel { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.form { display: grid; gap: 1.1rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 520px) { .form__row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.field input, .field textarea, .field select {
  font-family: var(--sans); font-size: var(--step-0); color: var(--ink);
  background: var(--bg); border: 1.5px solid var(--line); border-radius: 10px; padding: 0.85rem 1rem;
  transition: border-color 0.3s var(--ease);
}
.section--soft .field input, .section--soft .field textarea, .section--soft .field select { background: #fff; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--ink); }
.form .btn { justify-self: start; margin-top: 0.5rem; }
.form-note { font-size: var(--step--1); color: var(--faint); margin-top: 0.75rem; }

/* ---------- Contact rows ---------- */
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.75rem; }
.contact-list li { border-top: 1px solid var(--line); padding-top: 1.25rem; }
.contact-list .lbl { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.contact-list .val { font-size: var(--step-1); margin-top: 0.3rem; }
.socials { display: flex; gap: 1.5rem; margin-top: 2rem; }
.socials a { color: var(--muted); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.3s var(--ease); }
.socials a:hover { color: var(--ink); }

/* placeholder tile (studio photo to be supplied) */
.placeholder {
  width: 100%; height: 100%; display: grid; place-items: center; text-align: center;
  background: repeating-linear-gradient(45deg, #eceae5, #eceae5 14px, #e6e4de 14px, #e6e4de 28px);
  color: var(--faint); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 1rem;
}

/* ---------- Process steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; max-width: 760px; }
.steps li {
  counter-increment: step; position: relative;
  padding: 1.25rem 0 1.25rem 3.6rem; border-top: 1px solid var(--line); color: var(--muted);
}
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li::before {
  content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 1.25rem;
  font-family: var(--display); font-weight: 600; font-size: 1rem; color: var(--ink);
}
.steps li strong { color: var(--ink); font-weight: 600; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(20,20,20,0.96);
  display: grid; grid-template-rows: auto auto; align-content: center; justify-items: center;
  opacity: 0; visibility: hidden; transition: opacity 0.4s var(--ease), visibility 0.4s;
  padding: clamp(1rem, 4vw, 2.5rem); overflow-y: auto;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox__stage { display: grid; place-items: center; width: 100%; }
.lightbox__media { max-width: min(92vw, 980px); max-height: 58vh; object-fit: contain; box-shadow: 0 30px 80px rgba(0,0,0,0.5); transform: scale(0.97); transition: transform 0.45s var(--ease); }
.lightbox.open .lightbox__media { transform: scale(1); }
.lightbox__cap { color: #f2f2f0; text-align: center; padding: 1.1rem 1.25rem 0.25rem; max-width: 62ch; margin-inline: auto; }
.lightbox__cap h3 { font-size: 1.6rem; color: #fff; }
.lightbox__meta { margin: 0.35rem 0 0; color: rgba(242,242,240,0.65); font-size: 0.85rem; }
.lightbox__hook { margin: 0.6rem 0 0; color: #f2f2f0; font-size: 1.1rem; font-weight: 500; }
.lightbox__note { margin: 0.65rem 0 0; color: rgba(242,242,240,0.62); font-size: 0.95rem; line-height: 1.5; }
.lightbox__note:empty, .lightbox__hook:empty { display: none; }
.lightbox__enquire { margin-top: 1.25rem; }
.lightbox__close, .lightbox__nav {
  position: fixed; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; width: 50px; height: 50px; border-radius: 50%; cursor: pointer;
  display: grid; place-items: center; font-size: 1.4rem; transition: background 0.3s var(--ease);
}
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255,255,255,0.22); }
.lightbox__close { top: clamp(1rem,3vw,1.75rem); right: clamp(1rem,3vw,1.75rem); }
.lightbox__nav { top: 50%; transform: translateY(-50%); }
.lightbox__nav--prev { left: clamp(0.5rem,2vw,1.75rem); }
.lightbox__nav--next { right: clamp(0.5rem,2vw,1.75rem); }
@media (max-width: 560px) { .lightbox__media { max-height: 52vh; } .lightbox__nav { top: auto; bottom: 1rem; transform: none; } .lightbox__nav--prev { left: 32%; } .lightbox__nav--next { right: 32%; } }

/* ---------- Page head (sub-pages) ---------- */
.page-head { padding-top: calc(var(--nav-h) + clamp(3rem, 7vw, 5.5rem)); padding-bottom: clamp(1.5rem, 4vw, 3rem); }
.page-head h1 { font-size: var(--step-3); }
.page-head p { max-width: 56ch; color: var(--muted); margin-top: 1.1rem; font-size: var(--step-1); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 5vw, 4rem); }
.footer__grid { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem 2rem; flex-wrap: wrap; }
.footer__brand { font-family: var(--display); font-size: 1.4rem; font-weight: 600; }
.footer__mail { font-size: var(--step-1); }
.footer__mail:hover { text-decoration: underline; }
.footer small { color: var(--faint); display: block; width: 100%; margin-top: 1.5rem; font-size: 0.78rem; }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; } }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero__grid, .split, .form-panel { grid-template-columns: 1fr; }
  .split__media { max-width: 480px; }
  .split--reverse .split__media { order: 0; }
  .nav__links {
    position: fixed; inset: 0; flex-direction: column; justify-content: center; align-items: center;
    gap: 2rem; background: var(--bg); transform: translateX(100%); transition: transform 0.5s var(--ease);
  }
  .nav__links.open { transform: translateX(0); }
  .nav__links a { font-size: 1.3rem; }
  .nav__toggle { display: block; }
}