/*
 * Global styles — reset, tokens, nav, typography
 */

/* ── Design Tokens ── */
:root {
  --white:       #ffffff;
  --off-white:   #f5f5f3;
  --gray-50:     #f0efed;
  --gray-100:    #e4e2de;
  --gray-300:    #b8b4ae;
  --gray-500:    #7a756e;
  --gray-700:    #3d3a35;
  --black:       #111110;

  --accent:      #d4631a;
  --accent-dim:  #a34c12;
  --green:       #2d6a3f;
  --green-glow:  #4ade80;

  --nav-h:       56px;
  --radius:      6px;
  --font-mono:   'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body:   'Helvetica Neue', Helvetica, Arial, sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  padding-top: var(--nav-h);
  background: var(--white);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ══════════════════════════════════════
   PAGE SECTION — shared partial
══════════════════════════════════════ */
.page-section {
  padding: 6rem 2rem;
  background: var(--white);
}

.page-section--dark {
  background: var(--black);
}

.page-section--first {
  min-height: calc(100vh - var(--nav-h) - var(--page-header-h, 0px));
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.page-section__inner {
  max-width: 860px;
  margin: 0 auto;
}

.page-section__label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 0.75rem;
}

.page-section--dark .page-section__label {
  color: rgba(255,255,255,0.3);
}

.page-section__title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.page-section--dark .page-section__title {
  color: var(--white);
}

.page-section__intro {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.75;
  max-width: 680px;
  margin-bottom: 2.5rem;
}

.page-section--dark .page-section__intro {
  color: rgba(255,255,255,0.55);
}

/* ══════════════════════════════════════
   PAGE HEADER — shared partial
══════════════════════════════════════ */
.page-header {
  padding: 3rem 2rem 2rem;
}

.page-header-inner {
  max-width: 720px;
  margin: 0 auto;
}

.page-header h1 {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.25rem;
  text-align: center;
  text-wrap: balance;
}

.page-header p {
  font-size: 1.05rem;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  text-wrap: balance;
}

/* ══════════════════════════════════════
   TOP NAV — clean dark bar
══════════════════════════════════════ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: var(--black);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Version typeahead (next to logo) ── */
.version-typeahead { position: relative; }

.nav-version-trigger {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 99px;
  padding: 0.2rem 0.6rem 0.2rem 0.5rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray-300);
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.nav-version-trigger:hover,
.version-typeahead.is-open .nav-version-trigger {
  background: rgba(255,255,255,0.12);
  color: var(--white);
}

.version-typeahead.is-open .nav-caret { transform: rotate(180deg); }

.nav-version-tag { letter-spacing: 0.04em; }

/* Typeahead panel */
.version-typeahead__panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  background: #18181b;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  overflow: hidden;
  z-index: 1200;
}

.version-typeahead__panel[hidden] { display: none; }

.version-typeahead__input {
  display: block;
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--white);
  outline: none;
}

.version-typeahead__input::placeholder { color: var(--gray-500); }

.version-typeahead__list {
  list-style: none;
  max-height: 240px;
  overflow-y: auto;
  padding: 0.25rem 0;
}

.version-typeahead__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: background 0.1s;
}

.version-typeahead__item:hover,
.version-typeahead__item.is-focused {
  background: rgba(255,255,255,0.06);
}

.version-typeahead__item.is-active { background: rgba(212,99,26,0.12); }

.version-typeahead__item[hidden] { display: none; }

.version-menu-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--white);
}

.version-typeahead__item.is-active .version-menu-tag { color: var(--accent); }

.version-menu-desc {
  font-size: 0.7rem;
  color: var(--gray-500);
  font-family: var(--font-mono);
}

.nav-brand a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.nav-links {
  height: 100%;
  list-style: none;
  display: flex;
  gap: 0.1rem;
  align-items: center;
}

.nav-links li a {
  display: block;
  align-items: center;
  padding: 0.4rem 0.9rem;
  text-decoration: none;
  font-size: 0.85rem;
  height: 100%;
  color: var(--gray-300);
  border-radius: var(--radius);
  transition: color 0.12s, background 0.12s;
}

.nav-links li a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-actions a {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  text-decoration: none;
  font-size: 0.82rem;
  color: var(--gray-300);
  border-radius: var(--radius);
  transition: color 0.12s, background 0.12s;
}

.nav-actions a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.nav-actions a:last-child {
  background: var(--white);
  color: var(--black);
  font-weight: 500;
}

.nav-actions a:last-child:hover {
  background: var(--gray-100);
  color: var(--black);
}

/* ══════════════════════════════════════
   MEGA MENU
══════════════════════════════════════ */

.nav-dropdown { 
  position: static;
  height: 100%;
}


.nav-dropdown__trigger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  height: 100%;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  color: var(--gray-300);
  border-radius: var(--radius);
  transition: color 0.12s, background 0.12s;
  font-family: inherit;
  white-space: nowrap;
}

.nav-caret {
  font-size: 0.6rem;
  opacity: 0.6;
  transition: transform 0.15s;
}

.nav-dropdown__trigger:hover,
.nav-dropdown.is-open .nav-dropdown__trigger {
  color: var(--white);
  /* background: rgba(255,255,255,0.08); */
}

.nav-dropdown.is-open .nav-caret {
  transform: rotate(180deg);
}


/* The mega panel */
.mega-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  width: 100vw;
  background: #18181b;
  border-top: 1px solid rgba(255,255,255,0.07);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  z-index: 999;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  padding: 1.5rem 2rem;
  pointer-events: auto;
  justify-content: center;
  gap: 0.75rem;
  overflow-x: auto;
}

.nav-dropdown.is-open .mega-menu { display: flex; }

/* Individual card items */
.mega-item {
  display: flex;
  flex-direction: column;
  width: 200px;
  flex-shrink: 0;
  border-radius: 8px;
  text-decoration: none;
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color 0.15s;
  background: none;
}

.mega-item:hover { border-color: var(--accent); }

.mega-item__icon {
  width: 100%;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  font-size: 2.25rem;
  color: var(--gray-500);
  transition: color 0.15s, background 0.15s;
}

.mega-item:hover .mega-item__icon {
  background: rgba(212,99,26,0.1);
  color: var(--accent);
}

.mega-item__body {
  padding: 0.6rem 0.5rem 0.4rem;
}

.mega-item__title {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.3rem;
  line-height: 1.3;
}

.mega-item__desc {
  display: block;
  font-size: 0.75rem;
  color: var(--gray-500);
  line-height: 1.4;
}

.mega-item:hover .mega-item__title { color: var(--accent); }

.mega-item--highlight { border-color: rgba(212,99,26,0.3); }

.mega-item--cta {
  width: 210px;
  justify-content: center;
}

/* CTA block in highlight column */
.mega-cta {
  padding: 0.75rem;
}

.mega-cta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.5rem;
}

.mega-cta p {
  font-size: 0.8rem;
  color: var(--gray-500);
  line-height: 1.5;
  margin-bottom: 1rem;
}

/* Shared btn styles (also in docs.css but need here for nav) */
.btn {
  display: inline-block;
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.12s, background 0.12s;
  border: none;
}
.btn-primary  { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-dim); color: var(--white); }
.btn-ghost    { background: transparent; color: var(--gray-300); border: 1px solid rgba(255,255,255,0.2); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); color: var(--white); }
.btn--sm      { padding: 0.3rem 0.75rem; font-size: 0.8rem; }

/* ── Bill of Materials ── */
.bom-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.bom-version-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.bom-version-label {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.bom-version-pill {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  text-decoration: none;
  background: var(--gray-50);
  color: var(--gray-700);
  border: 1px solid var(--gray-100);
  transition: background 0.12s;
}

.bom-version-pill--active,
.bom-version-pill:hover {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.bom-summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
  color: var(--gray-500);
}

.bom-summary__sep { color: var(--gray-300); }

.bom-empty {
  padding: 2rem;
  text-align: center;
  color: var(--gray-500);
  background: var(--gray-50);
  border-radius: var(--radius);
}

.bom-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

.bom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.bom-table th {
  background: var(--gray-50);
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-100);
}

.bom-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--gray-50);
  vertical-align: top;
}

.bom-table tbody tr:last-child td { border-bottom: none; }

.bom-table tbody tr:hover td { background: var(--off-white); }

.bom-qty {
  text-align: center;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.bom-part strong { display: block; }

.bom-note {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-500);
  margin-top: 0.2rem;
}

.bom-specs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-500);
  max-width: 220px;
}

.bom-price {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.bom-price--total { font-weight: 600; }

.bom-total-row td {
  background: var(--gray-50);
  border-top: 2px solid var(--gray-100);
  padding: 0.875rem 1rem;
}

.bom-total-label {
  text-align: right;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ══════════════════════════════════════
   ACCOUNT DROPDOWN
══════════════════════════════════════ */

.acct-dropdown { position: relative; }

.acct-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 99px;
  padding: 0.2rem 0.6rem 0.2rem 0.25rem;
  cursor: pointer;
  color: var(--gray-300);
  font-size: 0.82rem;
  font-family: var(--font-body);
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.acct-trigger:hover,
.acct-dropdown.is-open .acct-trigger {
  background: rgba(255,255,255,0.12);
  color: var(--white);
}

.acct-dropdown.is-open .nav-caret { transform: rotate(180deg); }

.acct-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.acct-name {
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.acct-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: #18181b;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  overflow: hidden;
  z-index: 1200;
}

.acct-panel[hidden] { display: none; }

.acct-panel__header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.acct-panel__email {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-300);
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.acct-panel__version {
  display: block;
  font-size: 0.7rem;
  color: var(--accent);
  font-family: var(--font-mono);
  margin-top: 0.2rem;
}

.acct-menu {
  list-style: none;
  padding: 0.35rem 0;
}

.acct-menu__item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  color: var(--gray-300);
  text-decoration: none;
  transition: background 0.1s, color 0.1s;
}

.acct-menu__item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--white);
}

.acct-menu__icon { font-size: 0.9rem; }

.acct-panel__footer {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 0.5rem;
}

.acct-signout {
  display: block;
  width: 100%;
  padding: 0.5rem 1rem;
  background: none;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: #f87171;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
  font-family: var(--font-body);
}

.acct-signout:hover { background: rgba(248,113,113,0.08); }

/* ── Account pages ── */
.account-page {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.account-page__title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.account-page__sub {
  color: var(--gray-500);
  margin-bottom: 2rem;
}

.account-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.account-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 10px;
  text-decoration: none;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.account-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  border-color: var(--gray-300);
}

.account-card__icon { font-size: 1.5rem; }
.account-card__label { font-size: 0.95rem; font-weight: 600; color: var(--black); }
.account-card__desc { font-size: 0.78rem; color: var(--gray-500); }

.account-section {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--gray-100);
}

.account-section:last-child { border-bottom: none; }

.account-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.account-section p {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 1.25rem;
}

.settings-form { display: flex; flex-direction: column; gap: 1rem; max-width: 320px; }

.settings-field { display: flex; flex-direction: column; gap: 0.35rem; }

.settings-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-700);
}

.settings-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: var(--font-body);
  background: var(--white);
  color: var(--black);
  cursor: pointer;
}

.settings-select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.account-dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.5rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.account-dl dt { color: var(--gray-500); }
.account-dl dd { color: var(--black); font-weight: 500; }

.account-link {
  font-size: 0.875rem;
  color: var(--accent);
  text-decoration: none;
}

.account-link:hover { text-decoration: underline; }

/* ══════════════════════════════════════
   TOASTS
══════════════════════════════════════ */

.toast-region {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 480px;
  width: max-content;
}

.toast.is-hiding {
  opacity: 0;
  transform: translateY(-6px);
}

.toast--success {
  background: #1a2e20;
  color: var(--green-glow);
  border: 1px solid rgba(74,222,128,0.2);
}

.toast--error {
  background: #2e1a1a;
  color: #f87171;
  border: 1px solid rgba(248,113,113,0.2);
}

.toast--success:hover {
  opacity: 0 !important;
  transition: opacity 0.15s ease;
}

.toast__close {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  font-size: 0.8rem;
  padding: 0;
  line-height: 1;
  flex-shrink: 0;
  margin-left: auto;
  transition: opacity 0.12s;
}

.toast__close:hover { opacity: 1; }