/* NYOM components v0.1.0. Needs tokens/tokens.css and fonts.css loaded first.
   Marketing site = expressive motion; product UI (ERP, PFT) = functional motion only (see the guideline, Motion). */

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-sans); font-size: var(--text-body-size); line-height: var(--text-body-lh);
  font-weight: var(--text-body-weight); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
:lang(bn) { font-family: var(--font-bangla); line-height: var(--bn-lh-body); letter-spacing: 0; }
:where(span, a, em, strong):lang(bn) { font-size: calc(1em * var(--bn-size-boost)); }   /* :where keeps specificity low so component sizes still win */
:lang(bn) :is(h1, h2, h3, h4), :is(h1, h2, h3, h4):lang(bn), .text-display-xl:lang(bn), .text-display-lg:lang(bn) { line-height: var(--bn-lh-heading); letter-spacing: 0; }
.num, .tabular { font-variant-numeric: tabular-nums lining-nums; }
.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; }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
::selection { background: var(--color-accent); color: var(--color-text-on-accent); }

/* ---------- type ---------- */
h1, h2, h3, h4, p { margin: 0; }
h1, .text-h1 { font-size: var(--text-h1-size); line-height: var(--text-h1-lh); letter-spacing: var(--text-h1-tracking); font-weight: var(--text-h1-weight); }
h2, .text-h2 { font-size: var(--text-h2-size); line-height: var(--text-h2-lh); letter-spacing: var(--text-h2-tracking); font-weight: var(--text-h2-weight); }
h3, .text-h3 { font-size: var(--text-h3-size); line-height: var(--text-h3-lh); letter-spacing: var(--text-h3-tracking); font-weight: var(--text-h3-weight); }
h4, .text-h4 { font-size: var(--text-h4-size); line-height: var(--text-h4-lh); letter-spacing: var(--text-h4-tracking); font-weight: var(--text-h4-weight); }
.text-display-xl { font-size: var(--text-display-xl-size); line-height: var(--text-display-xl-lh); letter-spacing: var(--text-display-xl-tracking); font-weight: var(--text-display-xl-weight); }
.text-display-lg { font-size: var(--text-display-lg-size); line-height: var(--text-display-lg-lh); letter-spacing: var(--text-display-lg-tracking); font-weight: var(--text-display-lg-weight); }
.text-body-lg { font-size: var(--text-body-lg-size); line-height: var(--text-body-lg-lh); font-weight: var(--text-body-lg-weight); }
.text-body-sm { font-size: var(--text-body-sm-size); line-height: var(--text-body-sm-lh); }
.text-caption { font-size: var(--text-caption-size); line-height: var(--text-caption-lh); letter-spacing: var(--text-caption-tracking); }
.text-muted { color: var(--color-text-muted); }
.label { font-size: var(--text-label-size); line-height: var(--text-label-lh); letter-spacing: var(--text-label-tracking); font-weight: var(--text-label-weight); text-transform: uppercase; color: var(--color-text-muted); }
.label:lang(bn) { text-transform: none; letter-spacing: 0; }          /* never uppercase or track Bangla */
.link, .prose a { color: var(--color-link); text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.2em; }
.link:hover, .prose a:hover { color: var(--color-link-hover); }
.prose > * + * { margin-top: var(--space-5); }
.prose { max-width: 66ch; }

/* ---------- layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 20px; }
.container--wide { max-width: var(--container-wide); }
@media (min-width: 768px) { .container { padding-inline: 32px; } }
@media (min-width: 1024px) { .container { padding-inline: 48px; } }
.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section--tight { padding-block: clamp(2rem, 5vw, 4rem); }
.surface { background: var(--color-surface); }
.sunken { background: var(--color-sunken); }
[data-theme="forest"] { background: var(--color-bg); color: var(--color-text); }
.stack > * + * { margin-top: var(--space-5); }
.stack-lg > * + * { margin-top: var(--space-8); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); }
.grid { display: grid; gap: var(--space-6); }
@media (min-width: 768px) { .grid--2 { grid-template-columns: repeat(2, 1fr); } .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--4 { grid-template-columns: repeat(4, 1fr); } .grid { gap: 24px; } }
.split { display: grid; gap: var(--space-8); align-items: center; }
@media (min-width: 1024px) { .split { grid-template-columns: 7fr 5fr; gap: var(--space-9); } }

/* ---------- the rule (matra): the brand's one graphic device ---------- */
.rule { display: block; width: 64px; height: 8px; border-radius: 4px; background: var(--color-accent); }
.rule--full { width: 100%; background: currentColor; opacity: .9; }
.rule--thin { height: 2px; border-radius: 1px; }
.terrace {
  position: absolute; inset: 0; pointer-events: none; opacity: .36;
  background: url("./assets/patterns/terrace-forest.svg") center / cover no-repeat;
}
[data-theme="forest"] .terrace { background-image: url("./assets/patterns/terrace-chalk.svg"); opacity: .35; }

/* ---------- buttons ---------- */
.btn {
  --btn-bg: transparent; --btn-fg: var(--color-text); --btn-bd: transparent;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-3);
  min-height: 44px; padding: 0 var(--space-6); border-radius: var(--radius-md); border: 1.5px solid var(--btn-bd);
  background: var(--btn-bg); color: var(--btn-fg); font: inherit; font-weight: 650; font-size: 1rem; line-height: 1;
  text-decoration: none; cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }
.btn--primary { --btn-bg: var(--color-primary); --btn-fg: var(--color-text-on-primary); }
.btn--primary:hover { --btn-bg: var(--color-primary-hover); }
.btn--primary:active { --btn-bg: var(--color-primary-pressed); }
.btn--secondary { --btn-bd: var(--color-primary); --btn-fg: var(--color-primary); }
.btn--secondary:hover { background: color-mix(in srgb, var(--color-primary) 9%, transparent); }
.btn--accent { --btn-bg: var(--color-accent); --btn-fg: var(--color-text-on-accent); }
.btn--accent:hover { --btn-bg: var(--color-accent-hover); }
.btn--ghost { --btn-fg: var(--color-link); padding-inline: var(--space-4); }
.btn--ghost:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.btn--lg { min-height: 54px; padding: 0 var(--space-7); font-size: 1.0625rem; }
.btn--sm { min-height: 36px; padding: 0 var(--space-5); font-size: 0.875rem; }   /* dense product UI only */
.btn--pill { border-radius: var(--radius-pill); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; pointer-events: none; }
.btn__arrow { transition: transform var(--duration-base) var(--ease-emphasis); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---------- forms ---------- */
.field { display: grid; gap: var(--space-2); }
.field__label { font-weight: 600; font-size: 0.9375rem; }
.field__hint { font-size: var(--text-caption-size); color: var(--color-text-muted); }
.field__error { display: none; align-items: center; gap: var(--space-2); color: var(--status-danger-fg); font-weight: 600; font-size: 0.875rem; }
.field:has([aria-invalid="true"]) .field__error { display: flex; }
.input, .select, .textarea {
  width: 100%; min-height: 48px; padding: var(--space-4) var(--space-5); border: 1.5px solid var(--color-border-input);
  border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font: inherit;
  transition: border-color var(--duration-fast) var(--ease-standard);
}
.textarea { min-height: 120px; resize: vertical; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-primary); }
.input:focus-visible, .select:focus-visible, .textarea:focus-visible { outline-offset: 2px; border-color: var(--color-primary); }
.input[aria-invalid="true"], .textarea[aria-invalid="true"], .select[aria-invalid="true"] { border-color: var(--status-danger-fg); box-shadow: inset 4px 0 0 var(--status-danger-fg); }
.input::placeholder { color: var(--color-text-muted); opacity: .8; }
.check, .radio { display: flex; align-items: flex-start; gap: var(--space-4); cursor: pointer; }
.check input, .radio input { width: 22px; height: 22px; margin: 1px 0 0; accent-color: var(--color-primary); flex: none; }
.switch { position: relative; display: inline-flex; align-items: center; gap: var(--space-4); cursor: pointer; }
.switch input { appearance: none; width: 48px; height: 28px; border-radius: 14px; background: var(--color-border-input); position: relative; transition: background var(--duration-base) var(--ease-standard); flex: none; margin: 0; }
.switch input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: var(--color-surface); transition: transform var(--duration-base) var(--ease-emphasis); }
.switch input:checked { background: var(--color-primary); }
.switch input:checked::after { transform: translateX(20px); }

/* ---------- chips and status ---------- */
.chip { display: inline-flex; align-items: center; gap: var(--space-2); padding: 3px 12px; border-radius: var(--radius-pill); font-size: 0.8125rem; font-weight: 600; line-height: 1.4; background: var(--color-sunken); color: var(--color-text); }
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: .85; }
.chip--plain::before { display: none; }
.chip--success { background: var(--status-success-bg); color: var(--status-success-fg); }
.chip--warning { background: var(--status-warning-bg); color: var(--status-warning-fg); }
.chip--danger { background: var(--status-danger-bg); color: var(--status-danger-fg); }
.chip--info { background: var(--status-info-bg); color: var(--status-info-fg); }

/* ---------- cards ---------- */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-7); box-shadow: var(--shadow-sm); }
.card--interactive { transition: box-shadow var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-emphasis); }
.card--interactive:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card--product { border-top: 6px solid var(--product-accent, var(--color-accent)); }
.card__eyebrow { color: var(--product-deep, var(--color-text-muted)); }
.card__title { margin-top: var(--space-3); }

/* ---------- navigation ---------- */
.nav { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding-block: var(--space-5); }
.nav__brand { display: inline-flex; align-items: center; color: var(--color-primary); }
.nav__brand img { height: 30px; width: auto; display: block; }
.nav__links { display: none; list-style: none; margin: 0; padding: 0; gap: var(--space-7); }
.nav__links a { color: var(--color-text); text-decoration: none; font-weight: 600; padding-block: var(--space-3); border-bottom: 3px solid transparent; }
.nav__links a:hover, .nav__links a[aria-current="page"] { border-bottom-color: var(--color-accent); }
.nav__toggle { min-height: 44px; min-width: 44px; display: inline-grid; place-items: center; background: none; border: 1.5px solid var(--color-border-input); border-radius: var(--radius-md); color: var(--color-text); cursor: pointer; }
.nav__end { display: flex; align-items: center; gap: var(--space-4); }
.nav__end .btn { display: none; }                      /* the hero already carries the CTA on small screens */
@media (min-width: 640px) { .nav__end .btn { display: inline-flex; } }
@media (min-width: 900px) { .nav__links { display: flex; } .nav__toggle { display: none; } }
.nav[data-open="true"] { flex-wrap: wrap; }
.nav[data-open="true"] .nav__links { display: flex; flex-direction: column; gap: var(--space-2); width: 100%; order: 3; padding-top: var(--space-4); }
.lang-switch { display: inline-flex; border: 1.5px solid var(--color-border-input); border-radius: var(--radius-pill); overflow: hidden; }
.lang-switch button { min-height: 36px; padding: 0 var(--space-5); border: 0; background: transparent; color: var(--color-text); font: inherit; font-size: 0.875rem; font-weight: 600; cursor: pointer; }
.lang-switch button[aria-pressed="true"] { background: var(--color-primary); color: var(--color-text-on-primary); }

/* ---------- tabs, accordion, table, alert, stat ---------- */
.tabs { display: flex; gap: var(--space-2); border-bottom: 1.5px solid var(--color-border); overflow-x: auto; }
.tabs [role="tab"] { min-height: 44px; padding: 0 var(--space-5); border: 0; border-bottom: 3px solid transparent; margin-bottom: -1.5px; background: none; color: var(--color-text-muted); font: inherit; font-weight: 650; cursor: pointer; white-space: nowrap; }
.tabs [role="tab"][aria-selected="true"] { color: var(--color-text); border-bottom-color: var(--color-accent); }
.accordion { border-top: 1.5px solid var(--color-border); }
.accordion:last-of-type { border-bottom: 1.5px solid var(--color-border); }
.accordion summary { display: flex; justify-content: space-between; align-items: center; gap: var(--space-5); min-height: 56px; padding-block: var(--space-4); cursor: pointer; font-weight: 650; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; font-size: 1.5rem; line-height: 1; font-weight: 400; transition: transform var(--duration-base) var(--ease-emphasis); }
.accordion[open] summary::after { transform: rotate(45deg); }
.accordion__body { padding-bottom: var(--space-6); color: var(--color-text-muted); max-width: 62ch; }
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums lining-nums; }
.table caption { text-align: left; padding: var(--space-5) var(--space-6); font-weight: 650; }
.table th { text-align: left; padding: var(--space-4) var(--space-6); font-size: var(--text-label-size); letter-spacing: var(--text-label-tracking); text-transform: uppercase; font-weight: var(--text-label-weight); color: var(--color-text-muted); border-bottom: 1.5px solid var(--color-border); white-space: nowrap; }
.table td { padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--color-border); }
.table tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; }
.table tbody tr:hover { background: color-mix(in srgb, var(--color-primary) 5%, transparent); }
.alert { display: flex; gap: var(--space-4); align-items: flex-start; padding: var(--space-5) var(--space-6); border-radius: var(--radius-md); border-left: 5px solid currentColor; background: var(--status-info-bg); color: var(--status-info-fg); }
.alert--success { background: var(--status-success-bg); color: var(--status-success-fg); }
.alert--warning { background: var(--status-warning-bg); color: var(--status-warning-fg); }
.alert--danger { background: var(--status-danger-bg); color: var(--status-danger-fg); }
.alert__icon { flex: none; width: 22px; height: 22px; margin-top: 2px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.alert__title { font-weight: 700; }
.alert__body { color: var(--color-text); }
.stat { display: grid; gap: var(--space-2); }
.stat__value { font-size: 2.25rem; font-weight: 700; letter-spacing: -0.015em; line-height: 1.1; font-variant-numeric: tabular-nums lining-nums; }
.stat__cur { font-size: 0.6em; font-weight: 600; margin-right: 0.12em; opacity: .85; }
.stat__note { color: var(--color-text-muted); font-size: 0.875rem; }

/* ---------- bands, hero, footer ---------- */
.band { padding-block: clamp(3rem, 7vw, 6rem); }
.band__quote { font-size: var(--text-display-lg-size); line-height: var(--text-display-lg-lh); letter-spacing: var(--text-display-lg-tracking); font-weight: 700; max-width: 18ch; }
.hero { position: relative; overflow: hidden; padding-block: clamp(3.5rem, 9vw, 8rem) clamp(3rem, 7vw, 6rem); color: var(--color-text); }
.hero .terrace { mask-image: linear-gradient(to bottom, #000 30%, transparent); -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent); }
.hero > .container { position: relative; }
.hero__title { font-size: var(--text-display-xl-size); line-height: var(--text-display-xl-lh); letter-spacing: var(--text-display-xl-tracking); font-weight: 700; }
.rotator-line { display: block; white-space: nowrap; }
.rotator { display: inline-grid; vertical-align: bottom; color: var(--color-primary); }
.rotator > span { grid-area: 1 / 1; opacity: 0; transform: translateY(0.35em); visibility: hidden;
  transition: opacity var(--duration-hero-step) var(--ease-emphasis), transform var(--duration-hero-step) var(--ease-emphasis), visibility 0s linear var(--duration-hero-step); }
.rotator > span[data-state="active"] { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
.rotator > span[data-state="done"] { opacity: 0; transform: translateY(-0.35em); }
.rotator > span:lang(bn) { font-size: 1em; line-height: var(--text-display-xl-lh); padding-bottom: 0.06em; }
.js-off .rotator > span:last-child, .rotator[data-static] > span:last-child { opacity: 1; transform: none; visibility: visible; }
.footer { padding-block: var(--space-10) var(--space-8); }
.footer a { color: var(--color-text); }
.footer__grid { display: grid; gap: var(--space-8); }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-3); }
.footer__legal { margin-top: var(--space-9); padding-top: var(--space-6); border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 0.875rem; }
.dev-note { background: var(--status-warning-bg); color: var(--status-warning-fg); font-size: 0.875rem; padding: var(--space-3) var(--space-5); text-align: center; font-weight: 600; }

/* ---------- motion safety ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .card--interactive:hover { transform: none; }
}