/* Purpose: Shared UI components — buttons, header, nav, footer, forms, floating WhatsApp. */

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--color-primary);
  --btn-fg: var(--color-surface);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.95rem 2rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out);
  will-change: transform;
}
.btn::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--color-primary-dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-slow) var(--ease-out);
  z-index: 0;
}
.btn > * { position: relative; z-index: 1; }
.btn span { position: relative; z-index: 1; }
.btn:hover { box-shadow: var(--shadow-md); }
.btn:hover::after { transform: scaleX(1); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--ghost::after { background: var(--color-primary); }
.btn--ghost:hover { color: var(--color-surface); }

.btn--invert { --btn-bg: var(--color-surface); --btn-fg: var(--color-ink); }
.btn--invert::after { background: var(--color-primary); }
.btn--invert:hover { color: var(--color-surface); }

.btn--lg { padding: 1.15rem 2.6rem; font-size: var(--text-base); }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--color-surface) 82%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.site-header.is-hidden { transform: translateY(-100%); }

/* Offset the fixed header below the WP admin bar (logged-in only) */
.admin-bar .site-header { top: 32px; }
@media screen and (max-width: 782px) {
  .admin-bar .site-header { top: 46px; }
  /* Mobile nav overlay also clears the admin bar */
  .admin-bar .primary-nav { top: 46px; inset: 46px 0 0 0; }
}

.header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-3) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.site-header .brand__logo { height: 80px !important; width: auto !important; max-width: none; transition: opacity var(--duration-base); }
@media (max-width: 1023px) { .site-header .brand__logo { height: 64px !important; } }
@media (max-width: 767px)  { .site-header .brand__logo { height: 54px !important; } }
@media (max-width: 380px)  { .site-header .brand__logo { height: 46px !important; } }
.site-footer .footer__logo { height: 84px !important; width: auto !important; max-width: none; }

/* Generic page (cart/checkout/account/plain/shop) header offset */
.page-generic { padding-top: clamp(6.5rem, 11vh, 8.5rem); padding-bottom: clamp(4rem, 8vw, 7rem); min-height: 60vh; }
.page-generic__head { margin-bottom: var(--space-8); }

/* Legal / policy pages — readable prose */
.legal__head { margin-bottom: var(--space-8); }
.legal__updated { color: var(--color-text-muted); font-size: var(--text-sm); }
.legal__content { font-size: var(--text-md); line-height: var(--leading-loose); color: var(--color-text); }
.legal__content h2 { font-family: var(--font-heading); font-size: var(--text-2xl); margin: var(--space-8) 0 var(--space-3); }
.legal__content p { margin-bottom: var(--space-4); }
.legal__content ul { margin: 0 0 var(--space-5) var(--space-5); display: grid; gap: var(--space-2); }
.legal__content li { list-style: disc; }
.legal__content a { color: var(--color-primary-dark); text-decoration: underline; }

/* Right cluster: nav links + Book CTA, right-aligned together */
.header__right { display: flex; align-items: center; gap: var(--space-6); }

/* Header cart */
.header__cart { position: relative; display: inline-flex; align-items: center; color: var(--color-text); transition: color var(--duration-fast); }
.header__cart:hover { color: var(--color-primary); }
.header__cart svg { width: 24px; height: 24px; }
.header__cart-count {
  position: absolute; top: -7px; right: -9px;
  min-width: 18px; height: 18px; padding: 0 5px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary); color: var(--color-surface);
  font-family: var(--font-body); font-size: 11px; line-height: 1; border-radius: var(--radius-full);
}
.header__cart-count[hidden] { display: none; }

.primary-nav { display: flex; align-items: center; }
.nav__list { display: flex; align-items: center; gap: var(--space-7, 1.75rem); }
.nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  padding-block: var(--space-2);
}
.nav__link::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-base) var(--ease-out);
}
.nav__link:hover { color: var(--color-primary); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  position: relative;
  border-radius: var(--radius-full);
}
.nav-toggle span {
  position: absolute; left: 11px; right: 11px; height: 1.5px;
  background: var(--color-text);
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast);
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1023px) {
  .nav-toggle { display: block; position: relative; z-index: var(--z-modal); flex-shrink: 0; }
  .header__right { gap: var(--space-4); }
  .primary-nav {
    position: fixed;
    inset: 0;
    width: 100vw;
    max-width: 100%;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-8);
    background: var(--color-bg);
    padding: var(--space-16) var(--gutter);
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-inout);
    z-index: var(--z-overlay);
    overflow-y: auto;
  }
  .primary-nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: var(--space-6); text-align: center; width: 100%; }
  .nav__link { font-size: var(--text-lg); }
  .header__cta { display: none; }
  .primary-nav .header__cta--mobile { display: inline-flex; margin-top: var(--space-4); }
}
.header__cta--mobile { display: none; }
@media (max-width: 380px) { .brand__logo { height: 46px; } }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-ink);
  color: var(--color-text-invert-muted);
  padding-block: var(--space-20) var(--space-10);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.footer__logo { height: 84px; width: auto; margin-bottom: var(--space-5); }
.footer__tagline { max-width: 34ch; color: var(--color-text-invert-muted); font-size: var(--text-sm); }
.footer__col h4 { color: var(--color-text-invert); font-size: var(--text-lg); margin-bottom: var(--space-4); }
.footer__list { display: grid; gap: var(--space-3); }
.footer__list a, .footer__list span { font-size: var(--text-sm); color: var(--color-text-invert-muted); transition: color var(--duration-fast); }
.footer__list a:hover { color: var(--color-primary-soft); }
.footer__legal {
  margin-top: var(--space-16);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-dark);
  display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
}
.footer__legal a { color: var(--color-text-invert-muted); transition: color var(--duration-fast); }
.footer__legal a:hover { color: var(--color-primary-soft); }
.footer__bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-invert-muted);
}
@media (max-width: 767px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-10); }
  .footer__bottom { flex-direction: column; text-align: center; }
}

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: var(--z-float);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.8rem 1.1rem;
  background: #25D366;
  color: #fff;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  transform: translateY(0);
  transition: transform var(--duration-base) var(--ease-spring), box-shadow var(--duration-base);
}
.wa-float:hover { transform: translateY(-3px) scale(1.03); }
.wa-float svg { width: 24px; height: 24px; fill: currentColor; }
.wa-float__label { white-space: nowrap; }
@media (max-width: 479px) {
  .wa-float__label { display: none; }
  .wa-float { padding: 0.9rem; }
}
.wa-float::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(37,211,102,0.5);
  animation: wa-pulse 2.6s var(--ease-out) infinite;
}
@keyframes wa-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(37,211,102,0.45); }
  70%  { box-shadow: 0 0 0 16px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
@media (prefers-reduced-motion: reduce) { .wa-float::before { animation: none; } }

/* ---------- Form ---------- */
.field { display: grid; gap: var(--space-2); margin-bottom: var(--space-5); }
.field__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.field__input, .field__textarea {
  width: 100%;
  padding: 0.9rem 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.field__input:focus, .field__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 18%, transparent);
}
.field__textarea { resize: vertical; min-height: 130px; }
.field--hp { position: absolute; left: -9999px; }
.form__status {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  min-height: 1.4em;
}
.form__status.is-error { color: var(--color-error); }
.form__status.is-success { color: var(--color-success); }

/* ---------- UPI / QR payment panel ---------- */
.upi-panel {
  margin: var(--space-4) 0;
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  text-align: center;
}
.upi-panel__amt { font-size: var(--text-md); margin-bottom: var(--space-3); }
.upi-panel__qrwrap { display: flex; justify-content: center; margin: var(--space-3) 0; }
.upi-panel__qr { width: 220px; height: auto; border-radius: var(--radius-sm); background: #fff; padding: var(--space-2); }
.upi-panel__id { font-size: var(--text-md); margin-top: var(--space-2); }
.upi-panel__id strong { color: var(--color-primary-dark); letter-spacing: 0.02em; }
.upi-panel__note { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-3); max-width: 46ch; margin-inline: auto; }

.saarthi-thankyou-upi, .saarthi-calendly-unlock {
  margin: var(--space-8) 0; padding: var(--space-6);
  border: var(--border-thin); border-radius: var(--radius-lg); background: var(--color-surface);
  text-align: center;
}
.saarthi-calendly-unlock h3, .saarthi-thankyou-upi h3 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }

.footer__owner { font-size: var(--text-xs); color: var(--color-text-invert-muted); margin-top: var(--space-4); }