/* Merc Arms — minimalist dark theme
   Palette is fixed via custom properties. No gradients, box-shadows, or 3D. */

:root {
  --bg: #0c0c0d;
  --ivory: #f2f0eb;
  --silver: #c8ccd4;
  --stone: #8e8e93;
  --font: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --space: 1.5rem;
  --max: 70rem;
  --header-h: 4rem;
  --focus: 2px solid var(--silver);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ivory);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--silver);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--ivory);
}

:focus-visible {
  outline: var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 100;
  background: var(--bg);
  color: var(--ivory);
  border: 1px solid var(--silver);
  padding: 0.5rem 0.75rem;
}

.skip-link:focus {
  top: 0.75rem;
}

/* Header + nav
   -------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--stone);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--space);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ivory);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--ivory);
}

.logo img,
.logo svg {
  width: 2rem;
  height: 2rem;
  display: block;
}

.logo-wordmark {
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  margin: 0;
  border: 1px solid var(--silver);
  background: transparent;
  color: var(--silver);
  cursor: pointer;
}

.nav-toggle-bars {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 0 auto;
  background: var(--silver);
  position: relative;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1.15rem;
  height: 2px;
  background: var(--silver);
}

.nav-toggle-bars::before {
  top: -6px;
}

.nav-toggle-bars::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav ul {
  display: flex;
  gap: 0.25rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--stone);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover {
  color: var(--ivory);
}

.site-nav a[aria-current="page"],
.site-nav a.is-active {
  color: var(--ivory);
  border-bottom-color: var(--silver);
}

@media (max-width: 767px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--stone);
    padding: 0.5rem var(--space) 1rem;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .site-nav a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--stone);
  }

  .site-nav a[aria-current="page"],
  .site-nav a.is-active {
    border-bottom-color: var(--silver);
  }
}

/* Layout
   -------------------------------------------------- */
.site-main {
  flex: 1;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem var(--space);
}

.wrap--narrow {
  max-width: 46rem;
}

.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--stone);
}

.page-header h1 {
  margin: 0 0 0.5rem;
}

.lede,
.page-header .lede {
  margin: 0;
  color: var(--stone);
  font-size: 1.05rem;
  max-width: 40rem;
}

/* Typography
   -------------------------------------------------- */
h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
}

h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.1rem;
  margin: 0 0 0.4rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.muted,
.meta {
  color: var(--stone);
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--silver);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.divider {
  border: 0;
  border-top: 1px solid var(--stone);
  margin: 3rem 0;
}

/* Buttons
   -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid var(--silver);
  background: transparent;
  color: var(--silver);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--silver);
  color: var(--bg);
}

.btn--solid {
  background: var(--silver);
  color: var(--bg);
}

.btn--solid:hover {
  background: var(--ivory);
  border-color: var(--ivory);
  color: var(--bg);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn-row--center {
  justify-content: center;
}

/* Hero
   -------------------------------------------------- */
.hero {
  padding: 4.5rem var(--space) 4rem;
  text-align: center;
  border-bottom: 1px solid var(--stone);
}

.hero-logo {
  width: 5.5rem;
  height: 5.5rem;
  margin: 0 auto 1.5rem;
}

.hero h1 {
  margin: 0;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
}

.hero .tagline {
  margin: 0.85rem 0 0;
  color: var(--stone);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero .intro {
  max-width: 36rem;
  margin: 1.5rem auto 0;
  color: var(--ivory);
}

/* Cards + grids
   -------------------------------------------------- */
.grid {
  display: grid;
  gap: 1.25rem;
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(16.5rem, 1fr));
}

.card {
  border: 1px solid var(--stone);
  padding: 1.5rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card h2,
.card h3 {
  margin: 0;
}

.card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.product-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--stone);
  background: var(--bg);
}

.badge {
  display: inline-block;
  align-self: flex-start;
  margin: 0;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--stone);
  color: var(--stone);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.price {
  margin: 0;
  color: var(--ivory);
  font-weight: 500;
}

/* Steps
   -------------------------------------------------- */
.steps {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 1.25rem 0 1.25rem 3.25rem;
  border-bottom: 1px solid var(--stone);
}

.steps li:last-child {
  border-bottom: 0;
}

.steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.25rem;
  color: var(--silver);
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.9rem;
}

/* Forms
   -------------------------------------------------- */
.form {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-row label {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--ivory);
}

.form-row .hint {
  color: var(--stone);
  font-size: 0.8rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--stone);
  background: var(--bg);
  color: var(--ivory);
  font-family: inherit;
  font-size: 1rem;
  border-radius: 0;
  appearance: none;
}

select {
  padding-right: 2.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%23c8ccd4' stroke-width='1.5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  background-size: 12px 8px;
}

.form .btn {
  width: 100%;
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: var(--focus);
  outline-offset: 0;
  border-color: var(--silver);
}

.form-status {
  display: none;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--silver);
  color: var(--ivory);
}

.form-status.is-visible {
  display: block;
}

/* Contact details
   -------------------------------------------------- */
.contact-grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.detail-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.detail-list li {
  margin: 0 0 1rem;
}

.detail-list dt,
.detail-label {
  display: block;
  color: var(--stone);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

address {
  font-style: normal;
}

/* Callout / notice
   -------------------------------------------------- */
.callout {
  border: 1px solid var(--silver);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0 0;
}

.callout h2,
.callout h3 {
  margin-top: 0;
}

/* Footer
   -------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--stone);
  padding: 2rem var(--space);
  color: var(--stone);
  font-size: 0.85rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 0.5rem;
}

.site-footer a {
  color: var(--stone);
}

.site-footer a:hover {
  color: var(--ivory);
}

.footer-name {
  color: var(--ivory);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  font-size: 0.8rem;
  margin: 0;
}

.compliance {
  margin-top: 0.75rem;
}

/* Utility
   -------------------------------------------------- */
.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;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .nav-toggle-bars,
  .nav-toggle-bars::before,
  .nav-toggle-bars::after {
    transition: none;
  }
}


/* Product cards, galleries, and model teasers
   -------------------------------------------------- */
.product-card {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.product-card-mark {
  width: 2.25rem;
  height: 2.25rem;
}

.product-card-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.product-hero-wrap {
  margin: 0;
}

.product-hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border: 1px solid var(--stone);
  background: var(--bg);
}

.product-gallery {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.product-gallery button {
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  border: 1px solid var(--stone);
  background: var(--bg);
  cursor: pointer;
}

.product-gallery button[aria-pressed="true"] {
  border-color: var(--silver);
}

.product-gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  display: block;
}

.product-tagline {
  margin: 0;
  color: var(--stone);
  font-size: 0.95rem;
}

.specs {
  margin: 0.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.specs div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.75rem;
  border-top: 1px solid var(--stone);
  padding: 0.4rem 0;
  font-size: 0.9rem;
}

.specs div:last-child {
  border-bottom: 1px solid var(--stone);
}

.specs dt {
  margin: 0;
  color: var(--stone);
  font-weight: 400;
}

.specs dd {
  margin: 0;
  color: var(--ivory);
}

.model-teasers {
  margin-top: 3rem;
}

.model-teaser .product-hero-wrap {
  margin-bottom: 0.25rem;
}

.footer-models {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0.15rem 0 0.35rem;
}

.footer-models a {
  color: var(--silver);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.footer-models a:hover {
  color: var(--ivory);
  text-decoration: underline;
}

.footer-models .sep {
  color: var(--stone);
}