/* ==========================================================================
   Kuber Esthana LLP — Layout
   Site-wide chrome: header, primary nav, footer. Used on every page.
   ========================================================================== */

/* Header -------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 28, 54, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-on-dark);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header--scrolled {
  background: rgba(11, 20, 36, 0.94);
  box-shadow: 0 8px 24px rgba(8, 15, 28, 0.35);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-xs);
  padding-bottom: var(--space-xs);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.65em;
  flex-shrink: 0;
}

.site-logo__mark {
  width: 56px;
  height: 56px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-logo__text {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-on-dark);
  white-space: nowrap;
}

/* Primary nav ---------------------------------------------------------------- */

.site-nav ul {
  position: relative;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4em 0.3em;
  justify-content: flex-end;
}

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-muted-on-dark);
  padding: 0.5em 0.6em;
  border-radius: 6px;
  position: relative;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-gold);
}

.site-nav a[aria-current="page"] {
  color: var(--color-text-on-dark);
}

/* Shared sliding indicators (Vercel-tabs style): one hover pill + one active
   underline shared across all nav items, positioned via JS in main.js using
   each link's measured offsetLeft/offsetTop/offsetWidth — not per-link, so
   they slide smoothly between items instead of each link animating alone. */

.site-nav__hover,
.site-nav__active-bar {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  pointer-events: none;
  transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1), top 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    width 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.site-nav__hover {
  height: 0;
  border-radius: 6px;
  background: rgba(251, 250, 247, 0.08);
  opacity: 0;
}

.site-nav__active-bar {
  height: 2px;
  background: var(--color-gold-mid);
}

.site-nav__cta {
  color: var(--color-gold) !important;
}

/* Mobile nav toggle ------------------------------------------------------------ */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  flex-shrink: 0;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-on-dark);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle--active .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle--active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle--active .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 20, 36, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-on-dark);
    box-shadow: 0 12px 24px rgba(8, 15, 28, 0.35);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .site-nav--open {
    max-height: 480px;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }

  .site-nav li {
    width: 100%;
    border-bottom: 1px solid var(--color-border-on-dark);
  }

  .site-nav li:last-child {
    border-bottom: none;
  }

  .site-nav a {
    display: block;
    padding: 0.75em 0;
  }

  .site-nav__hover,
  .site-nav__active-bar {
    display: none;
  }

  .site-nav__cta {
    display: inline-block;
    margin-top: var(--space-xs);
  }
}

/* Footer ---------------------------------------------------------------------- */

.site-footer {
  background: var(--color-navy-deep);
  color: var(--color-text-muted-on-dark);
}

.site-footer__grid {
  display: grid;
  /* Brand block + one track per .site-footer__col. Keep the repeat() count in
     step with the number of columns in partials/footer.html, or the leftover
     empty track drags the whole row off-centre. */
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: var(--space-lg);
  padding: var(--space-2xl) var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border-on-dark);
  counter-reset: footcol;
}

.site-footer__col {
  padding-left: var(--space-lg);
  border-left: 1px solid var(--color-border-on-dark);
}

.site-logo--footer .site-logo__mark {
  width: 40px;
  height: 40px;
}

.site-logo--footer .site-logo__text {
  font-size: 0.9rem;
}

.site-footer__brand p {
  margin-top: var(--space-sm);
  max-width: 32ch;
  color: var(--color-text-muted-on-dark);
}

.site-footer__social {
  display: flex;
  gap: 0.6em;
  margin-top: var(--space-md);
}

.site-footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border-on-dark);
  font-size: 0.7rem;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.site-footer__social a:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy-deep);
}

.site-footer__col h4 {
  display: flex;
  align-items: baseline;
  gap: 0.5em;
  color: var(--color-text-on-dark);
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.site-footer__col h4::before {
  counter-increment: footcol;
  content: counter(footcol, decimal-leading-zero);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0;
  color: var(--color-gold);
}

.site-footer__col ul li {
  margin-bottom: 0.65em;
}

.site-footer__col a {
  transition: color 0.15s ease;
}

.site-footer__col a:hover {
  color: var(--color-text-on-dark);
}

.site-footer__bottom {
  border-top: 1px solid var(--color-border-on-dark);
}

.site-footer__bottom-inner {
  padding: var(--space-md);
  text-align: center;
}

.site-footer__bottom p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted-on-dark);
}

@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__col {
    padding-left: 0;
    border-left: none;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-on-dark);
  }
}

/* Contact modal ---------------------------------------------------------------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
}

.modal.is-open {
  display: block;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.modal__overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 15, 28, 0.6);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  max-width: 440px;
  margin: 14vh auto;
  background: var(--color-surface);
  box-shadow: 0 40px 90px -30px rgba(8, 15, 28, 0.6);
  opacity: 0;
  transform: translateY(10px) scale(0.985);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.modal.is-open .modal__panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.modal__head {
  background: var(--color-navy);
  color: var(--color-text-on-dark);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.modal__head .eyebrow {
  margin-bottom: 0;
  color: var(--color-gold-pale);
}

.modal__body {
  padding: var(--space-lg);
}

.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--color-border-on-dark);
  color: var(--color-text-on-dark);
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.modal__close:hover {
  background: rgba(251, 250, 247, 0.12);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.modal__panel h3 {
  margin-bottom: var(--space-md);
}

@media (max-width: 520px) {
  .modal__panel {
    margin: 8vh var(--space-md) 0;
  }
}

/* Partner inquiry modal ------------------------------------------------------------------ */

.modal__panel--wide {
  max-width: 720px;
}

.modal__head-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.modal__head-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
}

.modal__head-sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-pale);
}

.pi-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.pi-form[hidden] {
  display: none;
}

.pi-field {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.pi-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.pi-input,
.pi-select,
.pi-textarea {
  padding: 0.85em 0.75em;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
}

.pi-textarea {
  resize: vertical;
}

.pi-row2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.pi-intent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.6em;
}

.pi-intent {
  text-align: left;
  cursor: pointer;
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.4em;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.pi-intent:hover {
  border-color: var(--color-gold-mid);
}

.pi-intent.is-selected {
  background: rgba(198, 154, 60, 0.12);
  border-color: var(--color-gold-mid);
}

.pi-intent__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
}

.pi-intent__note {
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  font-weight: 300;
}

.pi-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55em;
}

.pi-chip {
  cursor: pointer;
  padding: 0.55em 1em;
  font-size: 0.82rem;
  font-family: var(--font-body);
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all 0.25s ease;
}

.pi-chip.is-selected {
  background: var(--color-navy);
  color: var(--color-text-on-dark);
  border-color: var(--color-navy);
}

.pi-ticket {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
}

.pi-ticket__head {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: baseline;
  justify-content: space-between;
}

.pi-ticket__value {
  font-family: var(--font-heading);
  font-size: 1.7rem;
}

.pi-ticket input[type="range"] {
  width: 100%;
  accent-color: var(--color-gold-mid);
}

.pi-ticket__range {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.pi-error {
  font-size: 0.85rem;
  color: #8c2f20;
  background: rgba(140, 47, 32, 0.07);
  border: 1px solid rgba(140, 47, 32, 0.25);
  padding: 0.7em 0.9em;
}

.pi-error[hidden] {
  display: none;
}

.pi-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.pi-summary {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.pi-actions {
  display: flex;
  gap: var(--space-sm);
}

.pi-success {
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

.pi-success[hidden] {
  display: none;
}

.pi-success__check {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-gold-mid);
  color: var(--color-gold);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
}

.pi-success__ref {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-border);
  padding: 0.6em 0.9em;
}