/* ============================================================
   Ummeo — shared components
   ============================================================ */

/* ---- Buttons -------------------------------------------------- */
.btn {
  --btn-bg: var(--ink-900);
  --btn-fg: var(--bone-100);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-block-size: 48px;
  padding: 0 var(--sp-6);
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: -0.005em;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform var(--t-fast) var(--ease-out),
    background-color var(--t-base) var(--ease-out),
    border-color var(--t-base) var(--ease-out),
    box-shadow var(--t-base) var(--ease-out),
    color var(--t-base) var(--ease-out);
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--e-3); }
.btn:active { transform: translateY(0); box-shadow: var(--e-1); }

.btn--primary {
  --btn-bg: var(--sap-600);
  --btn-fg: #FFFFFF;
}
.btn--primary:hover { --btn-bg: var(--sap-700); }

.btn--ink {
  --btn-bg: var(--ink-900);
  --btn-fg: var(--bone-100);
}
.btn--ink:hover { --btn-bg: var(--ink-700); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  --btn-bd: var(--rule-strong);
}
.btn--ghost:hover {
  --btn-bg: color-mix(in srgb, var(--fg) 5%, transparent);
  --btn-bd: var(--fg);
}

.btn--light {
  --btn-bg: var(--bone-100);
  --btn-fg: var(--ink-900);
}
.btn--light:hover { --btn-bg: var(--bone-300); }

.btn--lg { min-block-size: 56px; padding-inline: var(--sp-7); font-size: var(--step-0); }
.btn--sm { min-block-size: 40px; padding-inline: var(--sp-4); font-size: var(--step--2); }
.btn--block { width: 100%; }

/* Arrow that slides on hover */
.btn__arrow {
  transition: transform var(--t-base) var(--ease-out);
  flex: none;
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---- Text link with animated underline ------------------------ */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--fg);
  padding-block: var(--sp-1);
  position: relative;
}

.arrow-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform-origin: right;
  transform: scaleX(0);
  transition: transform var(--t-base) var(--ease-out);
}

.arrow-link:hover::after { transform-origin: left; transform: scaleX(1); }
.arrow-link svg { transition: transform var(--t-base) var(--ease-out); flex: none; }
.arrow-link:hover svg { transform: translateX(3px); }

/* ---- Pill / badge --------------------------------------------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--bg-raised) 80%, transparent);
  font-size: var(--step--2);
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: -0.005em;
  backdrop-filter: blur(8px);
}

.pill__dot {
  inline-size: 7px;
  block-size: 7px;
  border-radius: var(--r-pill);
  background: var(--sap-500);
  flex: none;
  position: relative;
}

.pill__dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: var(--r-pill);
  border: 1px solid var(--sap-500);
  opacity: 0.55;
  animation: pulse 2.6s var(--ease-out) infinite;
}

@keyframes pulse {
  0%   { transform: scale(0.7); opacity: 0.7; }
  70%  { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ---- Card ------------------------------------------------------ */
.card {
  position: relative;
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  transition:
    transform var(--t-base) var(--ease-out),
    box-shadow var(--t-base) var(--ease-out),
    border-color var(--t-base) var(--ease-out);
}

.card--hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--e-4);
  border-color: var(--rule-strong);
}

/* ---- Navigation ------------------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--bone-300) 78%, transparent);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base) var(--ease-out),
              background-color var(--t-base) var(--ease-out);
}

.nav.is-stuck { border-bottom-color: var(--rule); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  min-block-size: 72px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav__link {
  font-size: var(--step--1);
  font-weight: 450;
  color: var(--ink-500);
  transition: color var(--t-fast) var(--ease-out);
  position: relative;
  padding-block: var(--sp-2);
}

.nav__link:hover,
.nav__link[aria-current="page"] { color: var(--ink-900); }

.nav__actions { display: flex; align-items: center; gap: var(--sp-3); }

.nav__toggle { display: none; }

/* ---- Brand mark ------------------------------------------------ */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--fg);
  font-variation-settings: "SOFT" 0, "WONK" 0, "opsz" 20;
}

.brand__mark { flex: none; }
.brand__mark path,
.brand__mark circle { transition: transform var(--t-slow) var(--ease-out); }
.brand:hover .brand__mark .leaf-a { transform: translateY(-1px) rotate(-4deg); }
.brand:hover .brand__mark .leaf-b { transform: translateY(1px) rotate(4deg); }

/* ---- Mobile nav ------------------------------------------------- */
@media (max-width: 900px) {
  .nav__links,
  .nav__actions .btn:not(.nav__cta) { display: none; }

  .nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 44px;
    block-size: 44px;
    border-radius: var(--r-pill);
    border: 1px solid var(--rule);
  }

  .nav__toggle span {
    position: relative;
    inline-size: 16px;
    block-size: 1.5px;
    background: var(--fg);
    border-radius: var(--r-pill);
    transition: background-color var(--t-fast) var(--ease-out);
  }

  .nav__toggle span::before,
  .nav__toggle span::after {
    content: "";
    position: absolute;
    left: 0;
    inline-size: 16px;
    block-size: 1.5px;
    background: var(--fg);
    border-radius: var(--r-pill);
    transition: transform var(--t-base) var(--ease-out);
  }

  .nav__toggle span::before { top: -5px; }
  .nav__toggle span::after { top: 5px; }

  .nav__toggle[aria-expanded="true"] span { background: transparent; }
  .nav__toggle[aria-expanded="true"] span::before { transform: translateY(5px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span::after { transform: translateY(-5px) rotate(-45deg); }

  .nav__drawer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--t-slow) var(--ease-out);
    border-top: 1px solid transparent;
  }

  .nav__drawer.is-open {
    grid-template-rows: 1fr;
    border-top-color: var(--rule);
  }

  .nav__drawer > div { overflow: hidden; }

  .nav__drawer-inner {
    display: flex;
    flex-direction: column;
    gap: var(--sp-1);
    padding: var(--sp-5) 0 var(--sp-6);
  }

  .nav__drawer-inner a {
    font-size: var(--step-1);
    font-family: var(--font-display);
    letter-spacing: var(--tracking-tight);
    padding-block: var(--sp-3);
    border-bottom: 1px solid var(--rule);
  }

  .nav__drawer-inner .btn { margin-top: var(--sp-4); }
}

@media (min-width: 901px) {
  .nav__drawer { display: none; }
}

/* ---- Footer ----------------------------------------------------- */
.footer {
  background: var(--ink-950);
  color: var(--bone-200);
  padding-block: var(--sp-9) var(--sp-6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: var(--sp-7) var(--sp-6);
  padding-bottom: var(--sp-8);
  border-bottom: 1px solid color-mix(in srgb, var(--bone-100) 12%, transparent);
}

@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

.footer__brand .brand { color: var(--bone-100); }

.footer__tag {
  margin-top: var(--sp-4);
  color: var(--ink-300);
  font-size: var(--step--1);
  max-width: 34ch;
}

.footer__title {
  font-family: var(--font-text);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: var(--sp-4);
}

.footer__list { display: flex; flex-direction: column; gap: var(--sp-3); }

.footer__list a {
  font-size: var(--step--1);
  color: var(--ink-200);
  transition: color var(--t-fast) var(--ease-out);
  width: fit-content;
}

.footer__list a:hover { color: var(--bone-100); }

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-top: var(--sp-6);
  font-size: var(--step--2);
  color: var(--ink-400);
}

/* ---- Form fields ------------------------------------------------ */
.field { display: flex; flex-direction: column; gap: var(--sp-2); }

.field__label {
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--fg-muted);
}

.field__control {
  min-block-size: 52px;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-md);
  background: var(--bg-raised);
  color: var(--fg);
  font-size: var(--step-0);
  transition: border-color var(--t-fast) var(--ease-out),
              box-shadow var(--t-fast) var(--ease-out);
}

.field__control::placeholder { color: var(--fg-subtle); }

.field__control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

textarea.field__control { min-block-size: 128px; resize: vertical; line-height: 1.55; }

.field__hint { font-size: var(--step--2); color: var(--fg-subtle); }

/* ---- Accordion --------------------------------------------------- */
.accordion { border-top: 1px solid var(--rule); }

.accordion__item { border-bottom: 1px solid var(--rule); }

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  width: 100%;
  padding-block: var(--sp-5);
  text-align: left;
  font-family: var(--font-display);
  font-size: var(--step-1);
  letter-spacing: var(--tracking-snug);
  color: var(--fg);
  transition: color var(--t-fast) var(--ease-out);
}

.accordion__trigger:hover { color: var(--accent); }

.accordion__icon {
  position: relative;
  flex: none;
  inline-size: 22px;
  block-size: 22px;
}

.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  background: currentColor;
  border-radius: var(--r-pill);
  transition: transform var(--t-base) var(--ease-out);
}

.accordion__icon::before {
  inline-size: 14px; block-size: 1.5px;
  transform: translate(-50%, -50%);
}
.accordion__icon::after {
  inline-size: 1.5px; block-size: 14px;
  transform: translate(-50%, -50%);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--t-slow) var(--ease-out);
}

.accordion__panel.is-open { grid-template-rows: 1fr; }
.accordion__panel > div { overflow: hidden; }

.accordion__body {
  padding-bottom: var(--sp-5);
  color: var(--fg-muted);
  max-width: 62ch;
}