/* Fonts */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-variable.woff2") format("woff2");
}

@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/space-grotesk-700.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-400.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-500.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-600.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-700.woff2") format("woff2");
}

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

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  overflow-x: clip;
}

img,
picture {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

/* Variables */
:root {
  --north-black: #101313;
  --graphite: #1b1f1f;
  --graphite-light: #292e2d;
  --beam-white: #f3f2ec;
  --soft-white: #dadbd6;
  --alloy-gray: #929a98;
  --muted-gray: #69716f;
  --signal-orange: #e76324;
  --signal-orange-dark: #b94214;
  --night-blue: #172127;
  --border-dark: rgba(255, 255, 255, 0.12);
  --border-light: rgba(16, 19, 19, 0.14);
  --text-xs: clamp(0.74rem, 0.7rem + 0.12vw, 0.82rem);
  --text-sm: clamp(0.86rem, 0.81rem + 0.17vw, 0.96rem);
  --text-base: clamp(1rem, 0.95rem + 0.18vw, 1.1rem);
  --text-lg: clamp(1.18rem, 1.05rem + 0.42vw, 1.45rem);
  --heading-sm: clamp(1.7rem, 1.35rem + 1.2vw, 2.5rem);
  --heading-md: clamp(2.5rem, 1.8rem + 3vw, 4.8rem);
  --heading-xl: clamp(3.4rem, 2.2rem + 5vw, 7rem);
  --space: clamp(1rem, 2.5vw, 2rem);
  --radius: 8px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

/* Base */
body {
  background: var(--north-black);
  color: var(--beam-white);
  font-family: "Inter", Arial, sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
}

/* Typography */
h1,
h2,
h3 {
  font-family: "Space Grotesk", "Arial Narrow", sans-serif;
  font-weight: 700;
  line-height: 0.98;
}

h1 {
  max-width: 9ch;
  font-size: var(--heading-xl);
}

h2 {
  max-width: 11ch;
  font-size: var(--heading-md);
}

h3 {
  font-size: clamp(1.25rem, 1.06rem + 0.68vw, 1.85rem);
}

p {
  color: var(--soft-white);
}

.eyebrow,
.product-category,
.spec-list,
.comparison-table,
.diagram-label,
.badge {
  font-family: "IBM Plex Mono", Consolas, monospace;
}

.eyebrow {
  color: var(--signal-orange);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Accessibility */
.skip-link {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 200;
  padding: 0.8rem 1rem;
  background: var(--signal-orange);
  color: var(--north-black);
  font-weight: 800;
  transform: translateY(-120%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--signal-orange);
  outline-offset: 4px;
}

body.nav-open,
body.dialog-open {
  overflow: hidden;
}

/* Layout */
.container {
  width: min(100% - 2rem, 1180px);
  margin-inline: auto;
}

.section {
  scroll-margin-top: 86px;
  padding: clamp(4.5rem, 9vw, 8.5rem) 0;
}

.hero {
  scroll-margin-top: 0;
}

.section-header {
  display: grid;
  gap: 1rem;
  max-width: 780px;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-header p:last-child {
  max-width: 68ch;
  font-size: var(--text-lg);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  background: transparent;
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  border-bottom: 1px solid var(--border-dark);
  background: rgba(16, 19, 19, 0.92);
}

.site-header.is-scrolled:not(.is-open) {
  backdrop-filter: blur(14px);
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 1.5rem, 1240px);
  min-height: 76px;
  margin-inline: auto;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  min-height: 44px;
  font-family: "Space Grotesk", "Arial Narrow", sans-serif;
  font-weight: 800;
}

.brand-symbol {
  position: relative;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(243, 242, 236, 0.5);
  border-radius: 50%;
}

.brand-symbol::before,
.brand-symbol::after,
.brand-symbol span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.25rem;
  height: 2px;
  background: var(--signal-orange);
  content: "";
  transform-origin: 0 50%;
}

.brand-symbol::before {
  transform: rotate(-24deg);
}

.brand-symbol::after {
  transform: rotate(24deg);
}

.brand-symbol span {
  transform: rotate(0deg);
}

.brand-word {
  font-size: 1.08rem;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.9rem;
  border-radius: var(--radius);
  color: var(--soft-white);
  font-size: var(--text-sm);
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--beam-white);
  background: rgba(255, 255, 255, 0.08);
}

.site-nav .nav-cta {
  margin-left: 0.4rem;
  color: var(--north-black);
  background: var(--signal-orange);
}

.site-nav .nav-cta:hover {
  color: var(--north-black);
  background: #f27838;
}

.menu-toggle,
.nav-close {
  display: none;
}

/* Buttons */
.button,
.text-button,
.compare-controls button,
.scroll-top,
.support-details summary {
  cursor: pointer;
}

.button,
.text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button {
  padding: 0.85rem 1rem;
}

.button:hover,
.text-button:hover,
.compare-controls button:hover {
  transform: translateY(-1px);
}

.button:active,
.text-button:active,
.compare-controls button:active {
  transform: translateY(0);
}

.button-primary {
  background: var(--signal-orange);
  color: var(--north-black);
}

.button-primary:hover {
  background: #f27838;
}

.button-secondary {
  border: 1px solid rgba(243, 242, 236, 0.28);
  color: var(--beam-white);
  background: rgba(255, 255, 255, 0.05);
}

.button-secondary:hover {
  border-color: rgba(243, 242, 236, 0.5);
  background: rgba(255, 255, 255, 0.1);
}

.text-button {
  padding: 0 0.95rem;
  color: var(--beam-white);
  background: var(--graphite-light);
}

/* Hero */
.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 84vh;
  overflow: hidden;
  isolation: isolate;
}

.hero-media,
.hero-media img,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  z-index: -3;
}

.hero-media img {
  max-width: none;
  object-fit: cover;
  object-position: 65% 50%;
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero-overlay {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(16, 19, 19, 0.96) 0%, rgba(16, 19, 19, 0.78) 34%, rgba(16, 19, 19, 0.18) 66%),
    linear-gradient(0deg, var(--north-black) 0%, rgba(16, 19, 19, 0) 28%),
    radial-gradient(circle at 65% 45%, rgba(231, 99, 36, 0.22), transparent 30%);
}

.hero-content {
  display: grid;
  gap: 1.2rem;
  padding-top: 6rem;
  padding-bottom: 4rem;
}

.hero-content::before {
  width: min(19rem, 70vw);
  height: 3px;
  background: linear-gradient(90deg, var(--signal-orange), transparent);
  content: "";
  animation: lineReveal 900ms ease 250ms both;
}

.hero-copy {
  max-width: 52ch;
  font-size: var(--text-lg);
}

.hero-actions,
.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero-support {
  color: var(--alloy-gray);
  font-size: var(--text-sm);
}

/* Product Collection */
.collection-section {
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--north-black);
  background-size: 44px 44px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

/* Product Cards */
.product-card {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(41, 46, 45, 0.95), rgba(20, 24, 24, 0.97));
  box-shadow: var(--shadow);
}

.product-media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(18rem, 34vw, 26rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(231, 99, 36, 0.13), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent);
}

.product-media img {
  width: min(82%, 25rem);
  height: auto;
  object-fit: contain;
  transition: transform 220ms ease;
}

.product-card:hover .product-media img {
  transform: translateY(-3px) scale(1.02);
}

.model-number {
  position: absolute;
  right: 1rem;
  bottom: 0.2rem;
  color: rgba(243, 242, 236, 0.07);
  font-family: "IBM Plex Mono", Consolas, monospace;
  font-size: clamp(4rem, 9vw, 8rem);
  font-weight: 800;
  line-height: 1;
}

.badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.35rem 0.55rem;
  border-radius: 4px;
  background: var(--signal-orange);
  color: var(--north-black);
  font-size: var(--text-xs);
  font-weight: 900;
  text-transform: uppercase;
}

.product-copy {
  display: grid;
  gap: 0.9rem;
  padding: clamp(1rem, 2vw, 1.4rem);
}

.product-category {
  color: var(--alloy-gray);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.spec-list div {
  padding-top: 0.7rem;
  border-top: 1px solid var(--border-dark);
}

.spec-list dt {
  color: var(--muted-gray);
  font-size: var(--text-xs);
}

.spec-list dd {
  color: var(--beam-white);
  font-size: var(--text-sm);
  font-weight: 700;
}

.microcopy {
  color: var(--alloy-gray);
  font-size: var(--text-sm);
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
}

.product-footer strong {
  font-size: 1.45rem;
}

/* Product Dialogs */
.product-dialog {
  position: fixed;
  inset: 0;
  width: min(calc(100vw - 2rem), 1120px);
  max-width: none;
  height: min(calc(100dvh - 2rem), 780px);
  max-height: none;
  margin: auto;
  padding: 0;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.055), transparent 34%),
    var(--graphite);
  color: var(--beam-white);
  box-shadow: var(--shadow);
}

.product-dialog[open] {
  animation: dialogEnter 180ms ease both;
}

.product-dialog::backdrop {
  background: rgba(0, 0, 0, 0.76);
  backdrop-filter: blur(8px);
}

.dialog-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(21rem, 0.92fr) minmax(0, 1.08fr);
  height: 100%;
  overflow: hidden;
}

.dialog-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 3;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  background: rgba(16, 19, 19, 0.86);
  color: var(--beam-white);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: background 160ms ease, transform 160ms ease;
}

.dialog-close:hover {
  background: rgba(231, 99, 36, 0.9);
  color: var(--north-black);
  transform: rotate(4deg);
}

.dialog-media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  padding: clamp(1.25rem, 3vw, 2.4rem);
  overflow: hidden;
  border-right: 1px solid var(--border-dark);
  background:
    radial-gradient(circle at 48% 42%, rgba(231, 99, 36, 0.14), transparent 32%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    #111515;
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.dialog-media::before {
  position: absolute;
  inset: auto -18% 10% 16%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(231, 99, 36, 0.9), transparent);
  content: "";
  transform: rotate(-12deg);
}

.dialog-media img {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: min(92%, 29rem);
  max-height: 82%;
  object-fit: contain;
  filter: drop-shadow(0 30px 34px rgba(0, 0, 0, 0.35));
  transform: translate(-50%, -53%);
}

.dialog-content {
  display: grid;
  align-content: start;
  gap: 1rem;
  height: 100%;
  padding: clamp(1.4rem, 3vw, 2.7rem);
  padding-right: clamp(1.4rem, 4vw, 3.4rem);
  overflow: auto;
  scrollbar-color: var(--signal-orange) rgba(255, 255, 255, 0.08);
}

.dialog-content h2 {
  max-width: none;
  font-size: var(--heading-sm);
  line-height: 1.03;
}

.dialog-price {
  width: max-content;
  padding: 0.35rem 0.65rem;
  border: 1px solid rgba(231, 99, 36, 0.42);
  border-radius: 4px;
  background: rgba(231, 99, 36, 0.1);
  color: var(--beam-white);
  font-family: "IBM Plex Mono", Consolas, monospace;
  font-size: 1.25rem;
  font-weight: 800;
}

.dialog-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 0.4rem;
  background: var(--border-dark);
}

.dialog-columns h3 {
  margin-bottom: 0.55rem;
  font-size: 1rem;
}

.dialog-columns > div {
  padding: 1rem;
  background: rgba(16, 19, 19, 0.42);
}

.dialog-columns ul {
  display: grid;
  gap: 0.35rem;
  padding-left: 1.1rem;
  color: var(--soft-white);
  font-size: var(--text-sm);
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 180;
  width: min(calc(100vw - 2rem), 24rem);
  padding: 1rem;
  border: 1px solid rgba(231, 99, 36, 0.42);
  border-radius: var(--radius);
  background: rgba(16, 19, 19, 0.96);
  color: var(--beam-white);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Brand Principles */
.principles-section {
  background: var(--beam-white);
  color: var(--north-black);
}

.principles-section p {
  color: #3d4442;
}

.principles-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-light);
}

.principle {
  min-height: 13rem;
  padding: clamp(1rem, 2.2vw, 1.45rem);
  background: var(--beam-white);
}

.principle span {
  color: var(--signal-orange-dark);
  font-family: "IBM Plex Mono", Consolas, monospace;
  font-weight: 800;
}

.principle h3 {
  margin: 1.5rem 0 0.7rem;
  font-size: 1.35rem;
}

/* Comparison */
.comparison-section {
  background: var(--graphite);
}

.compare-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.compare-controls button {
  min-height: 44px;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  color: var(--beam-white);
  font-weight: 800;
}

.compare-controls button.is-active {
  border-color: var(--signal-orange);
  background: var(--signal-orange);
  color: var(--north-black);
}

.comparison-scroll {
  overflow-x: auto;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(16, 19, 19, 0.6);
}

.comparison-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.comparison-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-dark);
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  position: sticky;
  top: 76px;
  background: #141818;
  color: var(--beam-white);
  z-index: 1;
}

.comparison-table tbody th {
  color: var(--alloy-gray);
  font-weight: 700;
}

.comparison-table td {
  color: var(--soft-white);
}

.comparison-table [data-column].is-highlighted {
  background: rgba(231, 99, 36, 0.14);
  color: var(--beam-white);
}

/* Technical Platform */
.platform-section {
  background: var(--north-black);
}

.platform-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.platform-layout .section-header {
  margin-bottom: 0;
}

.platform-diagram {
  position: relative;
  min-height: 24rem;
  border: 1px solid var(--border-dark);
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
}

.beam-ring,
.beam-core {
  position: absolute;
  inset: 50% auto auto 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.beam-ring {
  width: 15rem;
  height: 15rem;
  border: 1px solid rgba(243, 242, 236, 0.2);
  box-shadow: 0 0 0 4rem rgba(231, 99, 36, 0.03), 0 0 0 8rem rgba(243, 242, 236, 0.02);
}

.beam-core {
  width: 4.5rem;
  height: 4.5rem;
  background: radial-gradient(circle, rgba(231, 99, 36, 0.85), rgba(231, 99, 36, 0.12) 62%, transparent 63%);
}

.diagram-label {
  position: absolute;
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--border-dark);
  background: rgba(16, 19, 19, 0.9);
  color: var(--soft-white);
  font-size: var(--text-xs);
}

.label-a {
  top: 18%;
  left: 10%;
}

.label-b {
  right: 8%;
  top: 40%;
}

.label-c {
  bottom: 16%;
  left: 28%;
}

.platform-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-dark);
}

.platform-item {
  min-height: 12rem;
  padding: 1rem;
  background: var(--graphite);
}

.platform-item h3 {
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
}

.platform-item p {
  font-size: var(--text-sm);
}

/* Support */
.support-section {
  background: #f3f2ec;
  color: var(--north-black);
}

.support-section p,
.support-section li {
  color: #3d4442;
}

.support-layout {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.support-layout .section-header {
  margin-bottom: 0;
}

.support-panel {
  border: 1px solid var(--border-light);
  background: #fffdf5;
}

.check-list {
  display: grid;
  gap: 0.85rem;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.55rem;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--signal-orange-dark);
  content: "/";
  font-weight: 900;
}

.support-details {
  border-top: 1px solid var(--border-light);
}

.support-details summary {
  min-height: 54px;
  padding: 1rem 1.5rem;
  color: var(--north-black);
  font-weight: 800;
}

.support-details p {
  padding: 0 1.5rem 1rem;
}

.support-details a {
  color: var(--signal-orange-dark);
  font-weight: 800;
}

/* Footer */
.final-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  background:
    linear-gradient(105deg, rgba(231, 99, 36, 0.15), transparent 28%),
    radial-gradient(circle at 86% 50%, rgba(231, 99, 36, 0.2), transparent 24%),
    var(--night-blue);
}

.final-cta::after {
  position: absolute;
  right: -12vw;
  bottom: -10rem;
  width: 42vw;
  height: 20rem;
  border: 1px solid rgba(231, 99, 36, 0.3);
  transform: rotate(-18deg);
  content: "";
}

.final-layout {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.final-layout h2 {
  max-width: 12ch;
  margin: 0.6rem 0 1rem;
}

.final-layout p:last-child {
  max-width: 48ch;
  font-size: var(--text-lg);
}

.site-footer {
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-top: 1px solid var(--border-dark);
  background: #0c0f0f;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(4, minmax(0, 0.7fr));
  gap: 2rem;
}

.footer-brand {
  margin-bottom: 1rem;
}

.footer-tagline {
  margin-bottom: 1rem;
  color: var(--beam-white);
  font-weight: 800;
}

.portfolio-note,
.copyright,
.social-links {
  color: var(--alloy-gray);
  font-size: var(--text-sm);
}

.site-footer h2 {
  margin-bottom: 0.7rem;
  font-size: 0.9rem;
  text-transform: uppercase;
}

.site-footer nav {
  display: grid;
  align-content: start;
  gap: 0.4rem;
}

.site-footer a {
  color: var(--soft-white);
  font-size: var(--text-sm);
}

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

/* Utilities */
.scroll-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 120;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  background: var(--signal-orange);
  color: var(--north-black);
  font-size: 1.25rem;
  font-weight: 900;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.scroll-top.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.not-found-page {
  min-height: 100vh;
}

.not-found {
  position: relative;
  display: grid;
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(105deg, rgba(231, 99, 36, 0.18), transparent 26%),
    radial-gradient(circle at 80% 48%, rgba(231, 99, 36, 0.22), transparent 22%),
    var(--north-black);
}

.not-found::after {
  position: absolute;
  right: -12rem;
  bottom: 14%;
  width: 48rem;
  height: 13rem;
  border-top: 1px solid rgba(231, 99, 36, 0.48);
  border-bottom: 1px solid rgba(231, 99, 36, 0.18);
  transform: rotate(-16deg);
  content: "";
}

.not-found-layout {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  gap: clamp(4rem, 12vw, 9rem);
  min-height: 100vh;
  padding-block: 2rem;
}

.not-found-copy {
  display: grid;
  gap: 1.1rem;
}

.not-found-copy h1 {
  max-width: 10ch;
}

.not-found-copy p:not(.eyebrow) {
  max-width: 42ch;
  font-size: var(--text-lg);
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroDrift {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.045) translateX(0.8rem);
  }
}

@keyframes lineReveal {
  from {
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left;
  }
  to {
    opacity: 1;
    transform: scaleX(1);
    transform-origin: left;
  }
}

@keyframes dialogEnter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Responsive */
@media (max-width: 980px) {
  h1 {
    font-size: clamp(3.2rem, 14vw, 6rem);
  }

  .menu-toggle {
    display: grid;
    gap: 0.35rem;
    place-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.06);
    color: var(--beam-white);
  }

  .menu-toggle span {
    display: block;
    width: 1.25rem;
    height: 2px;
    background: currentColor;
  }

  .nav-close {
    display: grid;
    place-items: center;
    justify-self: end;
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-dark);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    color: var(--beam-white);
    font-size: 1.8rem;
    cursor: pointer;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    display: grid;
    align-content: start;
    gap: 0.7rem;
    padding: 1rem;
    background: rgba(16, 19, 19, 0.98);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 200ms ease, visibility 200ms ease;
  }

  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .site-nav a {
    min-height: 58px;
    padding: 0 1rem;
    border: 1px solid var(--border-dark);
    font-size: 1.2rem;
  }

  .site-nav .nav-cta {
    margin-left: 0;
  }

  .hero {
    align-items: start;
    min-height: 0;
    padding-top: 5rem;
  }

  .hero-media {
    position: relative;
    order: 2;
    min-height: 0;
  }

  .hero-media img {
    position: static;
    width: 100%;
    height: auto;
    filter: brightness(1.12);
    object-fit: contain;
    object-position: center;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(16, 19, 19, 0.98) 0%, rgba(16, 19, 19, 0.86) 60%, rgba(16, 19, 19, 0.36) 78%, rgba(16, 19, 19, 0.68) 100%),
      radial-gradient(circle at 70% 64%, rgba(231, 99, 36, 0.2), transparent 28%);
  }

  .hero-content {
    padding-top: 1.25rem;
    padding-bottom: 1.5rem;
  }

  .product-grid,
  .principles-layout,
  .platform-layout,
  .support-layout,
  .final-layout {
    grid-template-columns: 1fr;
  }

  .final-layout {
    display: grid;
  }

  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 1rem, 1180px);
  }

  .brand-word {
    font-size: 1rem;
  }

  .hero-actions,
  .final-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .product-grid,
  .principles-grid,
  .platform-grid,
  .dialog-shell,
  .dialog-columns,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .product-media {
    min-height: 17rem;
  }

  .product-media img {
    width: min(88%, 22rem);
  }

  .spec-list {
    grid-template-columns: 1fr;
  }

  .product-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .text-button {
    width: 100%;
  }

  .product-dialog {
    width: min(calc(100vw - 1rem), 42rem);
    height: min(calc(100dvh - 1rem), 860px);
  }

  .dialog-shell {
    overflow: auto;
  }

  .dialog-media {
    min-height: 16rem;
    max-height: 38vh;
    padding-top: 3.5rem;
    border-right: 0;
    border-bottom: 1px solid var(--border-dark);
  }

  .dialog-media img {
    position: relative;
    top: auto;
    left: auto;
    max-height: 14rem;
    transform: none;
  }

  .dialog-content {
    height: auto;
    overflow: visible;
    padding-right: clamp(1.25rem, 5vw, 2rem);
  }

  .compare-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comparison-scroll {
    margin-inline: -0.5rem;
    border-radius: 0;
  }

  .comparison-table {
    min-width: 640px;
  }

  .scroll-top {
    right: 0.75rem;
    bottom: 0.75rem;
  }

  .toast {
    right: 0.5rem;
    bottom: 4.25rem;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}