/* =========================================================
   ARTHNIX — Shared Page Design System
   File: pages.css

   Typography:
   Body       : DM Sans
   Headings   : Manrope
   Brand      : Manrope

   Brand colors:
   Background : #090909
   Surface    : #111111
   Raised     : #151515
   Accent     : #ED3434
   Text       : #EEEEEE
   White      : #FFFFFF
   Muted      : #A0A0A0
   Borders    : #292929

   Purpose:
   Shared styles for inner pages.
   Homepage hero styles remain untouched.
   ========================================================= */

/* =========================================================
   1. DESIGN TOKENS
   ========================================================= */

:root {
  --arthnix-black: #090909;
  --arthnix-surface: #111111;
  --arthnix-surface-raised: #151515;
  --arthnix-surface-hover: #1a1a1a;

  --arthnix-red: #ED3434;
  --arthnix-red-hover: #d92727;
  --arthnix-red-light: #ff6565;

  --arthnix-white: #ffffff;
  --arthnix-text: #eeeeee;
  --arthnix-muted: #a0a0a0;
  --arthnix-muted-dark: #777777;

  --arthnix-border: #292929;
  --arthnix-border-light: #383838;
  --arthnix-border-red: rgba(237, 52, 52, 0.4);

  --arthnix-success: #38c98b;
  --arthnix-warning: #f3b94f;
  --arthnix-error: #ff5c5c;
  --arthnix-info: #70b8ff;

  /* Typography */
  --arthnix-font-body: "DM Sans", sans-serif;
  --arthnix-font-heading: "Manrope", sans-serif;

  /* Backward-compatible font token */
  --arthnix-font: "DM Sans", sans-serif;

  /* Layout */
  --arthnix-container: 1160px;
  --arthnix-page-gutter: 32px;
  --arthnix-header-height: 76px;

  /* Radius */
  --arthnix-radius-sm: 6px;
  --arthnix-radius-md: 10px;
  --arthnix-radius-lg: 16px;
  --arthnix-radius-xl: 22px;

  /* Shadows */
  --arthnix-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.18);
  --arthnix-shadow-md: 0 12px 32px rgba(0, 0, 0, 0.25);
  --arthnix-shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.35);

  /* Motion */
  --arthnix-transition: 180ms ease;
  --arthnix-transition-slow: 280ms ease;
}

/* =========================================================
   2. BASE PAGE STYLES
   ========================================================= */

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--arthnix-header-height) + 20px);
}

body {
  margin: 0;
  background: var(--arthnix-black);
  color: var(--arthnix-text);
  font-family: var(--arthnix-font-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body,
button,
input,
select,
textarea {
  font-family: var(--arthnix-font-body);
}

img,
svg,
video,
canvas {
  max-width: 100%;
}

img {
  height: auto;
}

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

button {
  color: inherit;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  accent-color: var(--arthnix-red);
}

::selection {
  background: rgba(237, 52, 52, 0.28);
  color: var(--arthnix-white);
}

:focus-visible {
  outline: 2px solid var(--arthnix-red);
  outline-offset: 4px;
}

/* =========================================================
   3. SHARED CONTAINERS
   ========================================================= */

.page-container {
  width: min(
    var(--arthnix-container),
    calc(100% - (var(--arthnix-page-gutter) * 2))
  );
  margin-inline: auto;
}

.page-container--narrow {
  width: min(
    820px,
    calc(100% - (var(--arthnix-page-gutter) * 2))
  );
  margin-inline: auto;
}

.page-container--reading {
  width: min(
    720px,
    calc(100% - (var(--arthnix-page-gutter) * 2))
  );
  margin-inline: auto;
}

.page-container--wide {
  width: min(
    1400px,
    calc(100% - (var(--arthnix-page-gutter) * 2))
  );
  margin-inline: auto;
}

.page-section {
  position: relative;
  padding-block: 80px;
}

.page-section--compact {
  padding-block: 48px;
}

.page-section--large {
  padding-block: 112px;
}

.page-section--bordered {
  border-top: 1px solid var(--arthnix-border);
}

.page-section--surface {
  background: var(--arthnix-surface);
}

.page-divider {
  width: 100%;
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--arthnix-border);
}

/* =========================================================
   4. PAGE INTRODUCTION / HERO
   Does not target the homepage .hero class.
   ========================================================= */

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--arthnix-border);
  background: var(--arthnix-black);
}

.page-hero--centered {
  text-align: center;
}

.page-hero--compact {
  padding-block: 52px 44px;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  width: min(
    var(--arthnix-container),
    calc(100% - (var(--arthnix-page-gutter) * 2))
  );
  margin-inline: auto;
}

.page-hero--centered .page-hero__inner {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.page-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--arthnix-red);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 1.8px;
  text-transform: uppercase;
}

.page-eyebrow::before {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--arthnix-red);
  content: "";
}

.page-title {
  max-width: 900px;
  margin: 0;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -2.2px;
  overflow-wrap: anywhere;
}

.page-title__accent {
  color: var(--arthnix-red);
}

.page-subtitle {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--arthnix-muted);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.9;
}

.page-hero--centered .page-subtitle {
  margin-inline: auto;
}

.page-hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* =========================================================
   5. BREADCRUMBS
   ========================================================= */

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 26px;
  color: var(--arthnix-muted-dark);
  font-size: 11px;
  font-weight: 500;
}

.breadcrumbs a {
  color: var(--arthnix-muted);
  text-decoration: none;
  transition: color var(--arthnix-transition);
}

.breadcrumbs a:hover {
  color: var(--arthnix-red);
}

.breadcrumbs__separator {
  color: #555555;
  user-select: none;
}

.breadcrumbs__current {
  color: var(--arthnix-white);
}

/* =========================================================
   6. TYPOGRAPHY
   ========================================================= */

.page-content {
  color: var(--arthnix-text);
  font-family: var(--arthnix-font-body);
  font-size: 14px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.page-content h2,
.content-heading {
  margin: 0 0 18px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -1.1px;
}

.page-content h3,
.content-subheading {
  margin: 30px 0 12px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.4px;
}

.page-content h4 {
  margin: 24px 0 10px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-content p {
  margin: 0 0 18px;
  color: var(--arthnix-muted);
}

.page-content p:last-child {
  margin-bottom: 0;
}

.page-content strong {
  color: var(--arthnix-white);
  font-weight: 700;
}

.page-content a {
  color: var(--arthnix-red);
  text-decoration: underline;
  text-decoration-color: rgba(237, 52, 52, 0.4);
  text-underline-offset: 3px;
  transition:
    color var(--arthnix-transition),
    text-decoration-color var(--arthnix-transition);
}

.page-content a:hover {
  color: var(--arthnix-red-light);
  text-decoration-color: currentColor;
}

.page-content ul,
.page-content ol {
  padding-left: 24px;
  margin: 0 0 22px;
  color: var(--arthnix-muted);
}

.page-content li {
  padding-left: 4px;
  margin-bottom: 8px;
}

.page-content li::marker {
  color: var(--arthnix-red);
}

.page-content blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 3px solid var(--arthnix-red);
  border-radius: 0 var(--arthnix-radius-sm) var(--arthnix-radius-sm) 0;
  background: var(--arthnix-surface);
  color: var(--arthnix-muted);
}

.page-content code,
.inline-code {
  padding: 3px 7px;
  border: 1px solid var(--arthnix-border);
  border-radius: 5px;
  background: var(--arthnix-surface);
  color: #ff9b9b;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

.page-content pre {
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-md);
  background: var(--arthnix-surface);
  color: var(--arthnix-text);
}

.page-content pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
}

.text-muted {
  color: var(--arthnix-muted) !important;
}

.text-subtle {
  color: var(--arthnix-muted-dark) !important;
}

.text-white {
  color: var(--arthnix-white) !important;
}

.text-accent {
  color: var(--arthnix-red) !important;
}

.text-center {
  text-align: center !important;
}

.text-left {
  text-align: left !important;
}

.text-right {
  text-align: right !important;
}

/* =========================================================
   7. BUTTONS
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: var(--arthnix-radius-sm);
  font-family: var(--arthnix-font-body);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--arthnix-transition),
    color var(--arthnix-transition),
    border-color var(--arthnix-transition),
    transform var(--arthnix-transition);
}

.btn:hover {
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  border-color: var(--arthnix-red);
  background: var(--arthnix-red);
  color: var(--arthnix-white);
}

.btn--primary:hover {
  border-color: var(--arthnix-red-hover);
  background: var(--arthnix-red-hover);
  color: var(--arthnix-white);
}

.btn--secondary {
  border-color: var(--arthnix-border-light);
  background: var(--arthnix-surface);
  color: var(--arthnix-white);
}

.btn--secondary:hover {
  border-color: #555555;
  background: var(--arthnix-surface-hover);
  color: var(--arthnix-white);
}

.btn--outline {
  border-color: var(--arthnix-border-light);
  background: transparent;
  color: var(--arthnix-white);
}

.btn--outline:hover {
  border-color: var(--arthnix-red);
  background: rgba(237, 52, 52, 0.06);
  color: var(--arthnix-red-light);
}

.btn--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--arthnix-muted);
}

.btn--ghost:hover {
  background: var(--arthnix-surface);
  color: var(--arthnix-white);
}

.btn--small {
  min-height: 36px;
  padding-inline: 13px;
  font-size: 11px;
}

.btn--large {
  min-height: 52px;
  padding-inline: 24px;
  font-size: 13px;
}

.btn--full {
  width: 100%;
}

.btn__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  line-height: 1;
}

/* =========================================================
   8. LINKS
   ========================================================= */

.link {
  color: var(--arthnix-red);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--arthnix-transition);
}

.link:hover {
  color: var(--arthnix-red-light);
}

.link--arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.link--arrow span {
  transition: transform var(--arthnix-transition);
}

.link--arrow:hover span {
  transform: translate(3px, -2px);
}

/* =========================================================
   9. CARDS
   ========================================================= */

.card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-lg);
  background: var(--arthnix-surface);
  transition:
    border-color var(--arthnix-transition),
    background var(--arthnix-transition),
    transform var(--arthnix-transition),
    box-shadow var(--arthnix-transition);
}

.card--interactive:hover {
  border-color: var(--arthnix-border-light);
  background: var(--arthnix-surface-raised);
  transform: translateY(-3px);
  box-shadow: var(--arthnix-shadow-sm);
}

.card--accent:hover {
  border-color: var(--arthnix-border-red);
}

.card--flat {
  border-color: transparent;
  background: transparent;
}

.card--compact {
  padding: 19px;
}

.card--large {
  padding: 34px;
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border: 1px solid rgba(237, 52, 52, 0.25);
  border-radius: var(--arthnix-radius-md);
  background: rgba(237, 52, 52, 0.08);
  color: var(--arthnix-red);
  font-size: 20px;
}

.card__title {
  margin: 0 0 10px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.4px;
}

.card__description {
  margin: 0;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.9;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--arthnix-border);
}

/* =========================================================
   10. GRIDS
   ========================================================= */

.grid {
  display: grid;
  gap: 22px;
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

.grid--tight {
  gap: 14px;
}

.grid--loose {
  gap: 30px;
}

/* =========================================================
   11. FORMS
   ========================================================= */

.form {
  width: 100%;
}

.form__group {
  min-width: 0;
  margin-bottom: 22px;
}

.form__label {
  display: block;
  margin-bottom: 9px;
  color: var(--arthnix-text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}

.form__required {
  margin-left: 3px;
  color: var(--arthnix-red);
}

.form__hint {
  display: block;
  margin-top: 7px;
  color: var(--arthnix-muted-dark);
  font-size: 11px;
  line-height: 1.7;
}

.form__error {
  display: block;
  margin-top: 7px;
  color: var(--arthnix-error);
  font-size: 11px;
  line-height: 1.6;
}

.form__success {
  display: block;
  margin-top: 7px;
  color: var(--arthnix-success);
  font-size: 11px;
  line-height: 1.6;
}

.input,
.select,
.textarea {
  display: block;
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--arthnix-border-light);
  border-radius: var(--arthnix-radius-sm);
  background: #0e0e0e;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-body);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
  transition:
    border-color var(--arthnix-transition),
    background var(--arthnix-transition),
    box-shadow var(--arthnix-transition);
}

.input::placeholder,
.textarea::placeholder {
  color: #707070;
  opacity: 1;
}

.input:hover,
.select:hover,
.textarea:hover {
  border-color: #505050;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--arthnix-red);
  outline: none;
  box-shadow: 0 0 0 3px rgba(237, 52, 52, 0.1);
}

.input:disabled,
.select:disabled,
.textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.input[aria-invalid="true"],
.select[aria-invalid="true"],
.textarea[aria-invalid="true"] {
  border-color: var(--arthnix-error);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.select {
  cursor: pointer;
}

.select option {
  background: var(--arthnix-surface);
  color: var(--arthnix-white);
}

.form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form__checkbox,
.form__radio {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
  cursor: pointer;
}

.form__checkbox input,
.form__radio input {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--arthnix-red);
}

.form__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* =========================================================
   12. FORM PANELS
   ========================================================= */

.form-panel {
  padding: 32px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-lg);
  background: var(--arthnix-surface);
}

.form-panel__heading {
  margin: 0 0 8px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.6px;
}

.form-panel__description {
  margin: 0 0 28px;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
}

/* =========================================================
   13. BADGES AND STATUS LABELS
   ========================================================= */

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 25px;
  padding: 4px 9px;
  border: 1px solid var(--arthnix-border);
  border-radius: 5px;
  background: var(--arthnix-surface);
  color: var(--arthnix-muted);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.4;
}

.badge--accent {
  border-color: rgba(237, 52, 52, 0.28);
  background: rgba(237, 52, 52, 0.09);
  color: var(--arthnix-red-light);
}

.badge--success {
  border-color: rgba(56, 201, 139, 0.25);
  background: rgba(56, 201, 139, 0.08);
  color: var(--arthnix-success);
}

.badge--warning {
  border-color: rgba(243, 185, 79, 0.25);
  background: rgba(243, 185, 79, 0.08);
  color: var(--arthnix-warning);
}

.badge--info {
  border-color: rgba(112, 184, 255, 0.25);
  background: rgba(112, 184, 255, 0.08);
  color: var(--arthnix-info);
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: currentColor;
}

/* =========================================================
   14. ALERTS AND NOTICES
   ========================================================= */

.notice {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 17px 19px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-md);
  background: var(--arthnix-surface);
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
}

.notice__icon {
  flex-shrink: 0;
  color: var(--arthnix-red);
  font-size: 16px;
  font-weight: 700;
}

.notice__content {
  min-width: 0;
}

.notice__title {
  display: block;
  margin-bottom: 4px;
  color: var(--arthnix-white);
  font-size: 12px;
  font-weight: 700;
}

.notice--success {
  border-color: rgba(56, 201, 139, 0.25);
}

.notice--success .notice__icon {
  color: var(--arthnix-success);
}

.notice--warning {
  border-color: rgba(243, 185, 79, 0.25);
}

.notice--warning .notice__icon {
  color: var(--arthnix-warning);
}

.notice--error {
  border-color: rgba(255, 92, 92, 0.3);
}

.notice--error .notice__icon {
  color: var(--arthnix-error);
}

/* =========================================================
   15. TABLES
   ========================================================= */

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-md);
  background: var(--arthnix-surface);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--arthnix-muted);
  font-size: 12px;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--arthnix-border);
  vertical-align: top;
}

.data-table th {
  background: #141414;
  color: var(--arthnix-white);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.data-table td {
  line-height: 1.8;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.015);
}

/* =========================================================
   16. STATISTICS
   ========================================================= */

.stat-card {
  padding: 24px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-md);
  background: var(--arthnix-surface);
}

.stat-card__label {
  display: block;
  margin-bottom: 12px;
  color: var(--arthnix-muted);
  font-size: 11px;
  font-weight: 500;
}

.stat-card__value {
  display: block;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1.4px;
}

.stat-card__caption {
  display: block;
  margin-top: 9px;
  color: var(--arthnix-muted-dark);
  font-size: 11px;
  line-height: 1.7;
}

/* =========================================================
   17. FAQ / ACCORDION
   ========================================================= */

.faq-list {
  border-top: 1px solid var(--arthnix-border);
}

.faq-item {
  border-bottom: 1px solid var(--arthnix-border);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 22px 0;
  border: 0;
  background: transparent;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.faq-item__icon {
  flex-shrink: 0;
  color: var(--arthnix-red);
  font-size: 20px;
  font-weight: 400;
  transition: transform var(--arthnix-transition);
}

.faq-item__question[aria-expanded="true"] .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__answer {
  padding: 0 34px 22px 0;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.9;
}

.faq-item__answer p {
  margin: 0 0 12px;
}

.faq-item__answer p:last-child {
  margin-bottom: 0;
}

/* =========================================================
   18. EMPTY STATES
   ========================================================= */

.empty-state {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  min-height: 260px;
  padding: 40px 24px;
  border: 1px dashed var(--arthnix-border-light);
  border-radius: var(--arthnix-radius-lg);
  background: rgba(255, 255, 255, 0.01);
  text-align: center;
}

.empty-state__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border: 1px solid var(--arthnix-border);
  border-radius: 50%;
  background: var(--arthnix-surface);
  color: var(--arthnix-red);
  font-size: 20px;
}

.empty-state__title {
  margin: 0 0 8px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 17px;
  font-weight: 700;
}

.empty-state__description {
  max-width: 420px;
  margin: 0;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.9;
}

/* =========================================================
   19. CTA PANELS
   ========================================================= */

.cta-panel {
  position: relative;
  overflow: hidden;
  padding: 42px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-xl);
  background: var(--arthnix-surface);
}

.cta-panel--accent {
  border-color: rgba(237, 52, 52, 0.28);
  background:
    radial-gradient(
      ellipse at 100% 0%,
      rgba(237, 52, 52, 0.1),
      transparent 50%
    ),
    var(--arthnix-surface);
}

.cta-panel__title {
  max-width: 650px;
  margin: 0;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: clamp(25px, 3.5vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -1.2px;
}

.cta-panel__description {
  max-width: 620px;
  margin: 16px 0 0;
  color: var(--arthnix-muted);
  font-size: 13px;
  line-height: 1.9;
}

.cta-panel__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 25px;
}

/* =========================================================
   20. LEGAL / POLICY PAGE CONTENT
   ========================================================= */

.legal-content {
  width: min(780px, 100%);
  margin-inline: auto;
}

.legal-content section {
  margin-bottom: 42px;
}

.legal-content section:last-child {
  margin-bottom: 0;
}

.legal-content h2 {
  margin: 0 0 14px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.6px;
}

.legal-content h3 {
  margin: 24px 0 10px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.legal-content p,
.legal-content li {
  color: var(--arthnix-muted);
  font-size: 13px;
  line-height: 1.95;
}

.legal-content p {
  margin: 0 0 16px;
}

.legal-content ul,
.legal-content ol {
  padding-left: 23px;
}

.legal-content li {
  margin-bottom: 8px;
}

.legal-content a {
  color: var(--arthnix-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-content a:hover {
  color: var(--arthnix-red-light);
}

.legal-updated {
  margin-top: 14px;
  color: var(--arthnix-muted-dark);
  font-size: 11px;
}

/* =========================================================
   21. CONTACT INFORMATION
   ========================================================= */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 44px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--arthnix-border);
}

.contact-info__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-info__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-sm);
  background: var(--arthnix-surface);
  color: var(--arthnix-red);
}

.contact-info__title {
  margin: 0 0 5px;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 13px;
  font-weight: 700;
}

.contact-info__text {
  margin: 0;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
}

.contact-info__text a {
  color: var(--arthnix-red);
  text-decoration: none;
}

.contact-info__text a:hover {
  color: var(--arthnix-red-light);
}

/* =========================================================
   22. PRICING
   ========================================================= */

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 30px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-lg);
  background: var(--arthnix-surface);
}

.pricing-card--featured {
  border-color: var(--arthnix-border-red);
  background:
    linear-gradient(
      160deg,
      rgba(237, 52, 52, 0.07),
      transparent 45%
    ),
    var(--arthnix-surface);
}

.pricing-card__badge {
  align-self: flex-start;
  margin-bottom: 20px;
}

.pricing-card__name {
  margin: 0;
  color: var(--arthnix-white);
  font-family: var(--arthnix-font-heading);
  font-size: 18px;
  font-weight: 700;
}

.pricing-card__description {
  min-height: 46px;
  margin: 10px 0 20px;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 24px;
  color: var(--arthnix-white);
}

.pricing-card__amount {
  font-family: var(--arthnix-font-heading);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1.5px;
}

.pricing-card__period {
  color: var(--arthnix-muted);
  font-size: 11px;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin: 0 0 28px;
  padding: 22px 0 0;
  border-top: 1px solid var(--arthnix-border);
  list-style: none;
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.7;
}

.pricing-card__features li::before {
  flex-shrink: 0;
  color: var(--arthnix-red);
  font-weight: 700;
  content: "✓";
}

.pricing-card__action {
  width: 100%;
  margin-top: auto;
}

/* =========================================================
   23. TOOL / FEATURE LISTS
   ========================================================= */

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--arthnix-muted);
  font-size: 12px;
  line-height: 1.8;
}

.feature-list__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(237, 52, 52, 0.1);
  color: var(--arthnix-red);
  font-size: 11px;
  font-weight: 700;
}

/* =========================================================
   24. PAGINATION
   ========================================================= */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 36px;
}

.pagination__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--arthnix-border);
  border-radius: var(--arthnix-radius-sm);
  background: var(--arthnix-surface);
  color: var(--arthnix-muted);
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  transition:
    color var(--arthnix-transition),
    border-color var(--arthnix-transition),
    background var(--arthnix-transition);
}

.pagination__item:hover {
  border-color: var(--arthnix-border-light);
  color: var(--arthnix-white);
}

.pagination__item[aria-current="page"] {
  border-color: var(--arthnix-red);
  background: var(--arthnix-red);
  color: var(--arthnix-white);
}

/* =========================================================
   25. SEARCH
   ========================================================= */

.search-box {
  position: relative;
  width: 100%;
}

.search-box__icon {
  position: absolute;
  top: 50%;
  left: 15px;
  color: var(--arthnix-muted-dark);
  pointer-events: none;
  transform: translateY(-50%);
}

.search-box .input {
  padding-left: 42px;
}

.search-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.search-toolbar__main {
  flex: 1 1 280px;
  min-width: 0;
}

.search-toolbar__filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* =========================================================
   26. AVATARS
   ========================================================= */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--arthnix-border);
  border-radius: 50%;
  background: var(--arthnix-surface-raised);
  color: var(--arthnix-white);
  font-size: 12px;
  font-weight: 700;
}

.avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar--small {
  width: 30px;
  height: 30px;
  font-size: 10px;
}

.avatar--large {
  width: 58px;
  height: 58px;
  font-size: 16px;
}

/* =========================================================
   27. LOADING / PROGRESS
   ========================================================= */

.loading-spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 2px solid var(--arthnix-border-light);
  border-top-color: var(--arthnix-red);
  border-radius: 50%;
  animation: arthnix-spin 700ms linear infinite;
}

@keyframes arthnix-spin {
  to {
    transform: rotate(360deg);
  }
}

.progress {
  width: 100%;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--arthnix-border);
}

.progress__bar {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--arthnix-red);
  transition: width 250ms ease;
}

/* =========================================================
   28. LAYOUT UTILITIES
   ========================================================= */

.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stack--tight {
  gap: 8px;
}

.stack--loose {
  gap: 28px;
}

.cluster {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.cluster--between {
  justify-content: space-between;
}

.cluster--center {
  justify-content: center;
}

.flex-1 {
  flex: 1 1 0%;
  min-width: 0;
}

.flex-shrink-0 {
  flex-shrink: 0;
}

.w-full {
  width: 100%;
}

.max-w-reading {
  max-width: 720px;
}

.mx-auto {
  margin-inline: auto;
}

.mt-0 {
  margin-top: 0 !important;
}

.mt-1 {
  margin-top: 8px !important;
}

.mt-2 {
  margin-top: 16px !important;
}

.mt-3 {
  margin-top: 24px !important;
}

.mt-4 {
  margin-top: 32px !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mb-1 {
  margin-bottom: 8px !important;
}

.mb-2 {
  margin-bottom: 16px !important;
}

.mb-3 {
  margin-bottom: 24px !important;
}

.mb-4 {
  margin-bottom: 32px !important;
}

.pt-0 {
  padding-top: 0 !important;
}

.pb-0 {
  padding-bottom: 0 !important;
}

.hidden {
  display: none !important;
}

/* =========================================================
   29. ACCESSIBILITY
   ========================================================= */

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10000;
  padding: 12px 16px;
  border-radius: var(--arthnix-radius-sm);
  background: var(--arthnix-red);
  color: var(--arthnix-white);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--arthnix-transition);
}

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

/* =========================================================
   30. RESPONSIVE — TABLET
   ========================================================= */

@media (max-width: 1050px) {
  :root {
    --arthnix-container: 100%;
    --arthnix-page-gutter: 24px;
  }

  .page-section {
    padding-block: 68px;
  }

  .page-section--large {
    padding-block: 88px;
  }

  .page-hero {
    padding-block: 64px 54px;
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-layout {
    gap: 30px;
  }
}

/* =========================================================
   31. RESPONSIVE — MOBILE
   ========================================================= */

@media (max-width: 780px) {
  :root {
    --arthnix-page-gutter: 18px;
    --arthnix-header-height: 68px;
  }

  .page-section {
    padding-block: 52px;
  }

  .page-section--compact {
    padding-block: 34px;
  }

  .page-section--large {
    padding-block: 68px;
  }

  .page-hero {
    padding-block: 50px 42px;
  }

  .page-hero--compact {
    padding-block: 38px 32px;
  }

  .page-title {
    font-size: clamp(32px, 7vw, 48px);
    letter-spacing: -1.5px;
  }

  .page-subtitle {
    margin-top: 16px;
    font-size: 13px;
  }

  .page-hero__actions {
    margin-top: 24px;
  }

  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid {
    gap: 16px;
  }

  .card {
    padding: 21px;
  }

  .card--large {
    padding: 25px;
  }

  .form-panel {
    padding: 24px;
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .cta-panel {
    padding: 30px;
  }

  .pricing-card {
    padding: 24px;
  }
}

/* =========================================================
   32. RESPONSIVE — SMALL MOBILE
   ========================================================= */

@media (max-width: 520px) {
  :root {
    --arthnix-page-gutter: 16px;
  }

  .page-section {
    padding-block: 42px;
  }

  .page-section--compact {
    padding-block: 28px;
  }

  .page-section--large {
    padding-block: 54px;
  }

  .page-hero {
    padding-block: 40px 34px;
  }

  .page-title {
    font-size: clamp(29px, 9vw, 40px);
    letter-spacing: -1.2px;
  }

  .page-subtitle {
    font-size: 12px;
    line-height: 1.85;
  }

  .page-eyebrow {
    margin-bottom: 13px;
    font-size: 10px;
    letter-spacing: 1.4px;
  }

  .page-hero__actions {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .page-hero__actions .btn {
    width: 100%;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .card {
    padding: 20px;
  }

  .card--large {
    padding: 22px;
  }

  .form-panel {
    padding: 20px;
  }

  .form__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

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

  .form__actions .btn {
    width: 100%;
  }

  .cta-panel {
    padding: 24px 20px;
    border-radius: var(--arthnix-radius-lg);
  }

  .cta-panel__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .cta-panel__actions .btn {
    width: 100%;
  }

  .pricing-card {
    padding: 22px;
  }

  .data-table th,
  .data-table td {
    padding: 12px;
  }

  .faq-item__question {
    gap: 14px;
    padding-block: 18px;
    font-size: 12px;
  }

  .faq-item__answer {
    padding-right: 10px;
    font-size: 11px;
  }

  .search-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .search-toolbar__filters {
    width: 100%;
  }

  .search-toolbar__filters > * {
    flex: 1 1 auto;
    min-width: 0;
  }
}

/* =========================================================
   33. REDUCED MOTION
   ========================================================= */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}