/* ============================================================
   INTRINSIC POWER — Shared Design System
   Consolidated from: index, defense, commercial, contact, login
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS RESET
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ------------------------------------------------------------
   2. CSS CUSTOM PROPERTIES (Design Tokens)
   ------------------------------------------------------------ */
:root {
  /* Brand colours */
  --g: #27ad81;
  --b: #3489f9;

  /* Surface palette */
  --dark: #05100D;
  --surf: #0A1A15;
  --surf2: #0F2119;

  /* Text */
  --tx: #EEF4F1;
  --mu: rgba(238, 244, 241, 0.7);
  --heading: #E8ECF2;

  /* Borders */
  --bdr: rgba(238, 244, 241, 0.08);
  --bdrm: rgba(238, 244, 241, 0.14);

  /* Typography families */
  --font-body: 'Outfit', sans-serif;
  --font-mono: 'DM Mono', monospace;

  /* Spacing scale */
  --sp-xs: 0.35rem;
  --sp-sm: 0.75rem;
  --sp-md: 1.5rem;
  --sp-lg: 2.5rem;
  --sp-xl: 3rem;
  --sp-2xl: 3.5rem;
}

/* ------------------------------------------------------------
   3. BASE STYLES
   ------------------------------------------------------------ */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--tx);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fullscreen body variant (contact, login) */
body.full-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--dark);
}

::-webkit-scrollbar-thumb {
  background: rgba(238, 244, 241, 0.12);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(238, 244, 241, 0.2);
}

/* Selection */
::selection {
  background: rgba(39, 173, 129, 0.3);
  color: var(--tx);
}

/* ------------------------------------------------------------
   4. TYPOGRAPHY
   ------------------------------------------------------------ */
h1 {
  font-size: clamp(2.2rem, 3.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.07;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  color: var(--heading);
}

h2 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--heading);
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
  color: var(--heading);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.eyebrow.g { color: var(--g); }
.eyebrow.b { color: var(--b); }

.lead {
  font-size: 15px;
  line-height: 1.72;
  color: var(--mu);
  font-weight: 300;
  max-width: 520px;
  margin-bottom: 2rem;
}

.accent-g { color: var(--g); }
.accent-b { color: var(--b); }

.card-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(238, 244, 241, 0.7);
  font-weight: 300;
  margin-top: 0.4rem;
}

/* ------------------------------------------------------------
   5. NAV — Sticky header with blur backdrop
   ------------------------------------------------------------ */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem var(--sp-lg);
  border-bottom: 0.5px solid var(--bdr);
  position: sticky;
  top: 0;
  background: rgba(5, 16, 13, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
}

.nav-left {
  display: flex;
  align-items: center;
}

.nav-logo {
  height: 44px;
  width: auto;
  transition: opacity 0.2s;
}

nav a:hover .nav-logo,
nav a:hover > img {
  opacity: 0.8;
}

.nav-tabs {
  display: flex;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

nav.tabs-visible .nav-tabs {
  opacity: 1;
  pointer-events: auto;
}

.nav-tabs a {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.4);
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  transition: color 0.2s;
}

.nav-tabs a:hover {
  color: rgba(238, 244, 241, 0.6);
}

.nav-tabs a.active {
  color: var(--g);
}

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

/* Hamburger toggle — hidden on desktop */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--tx);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

nav.menu-open .menu-toggle span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

nav.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

nav.menu-open .menu-toggle span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu panel — hidden on desktop */
.mobile-menu {
  display: none;
}

.mobile-menu-link {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.5);
  text-decoration: none;
  padding: 0.85rem 2.5rem;
  display: block;
  transition: color 0.2s, background 0.2s;
}

.mobile-menu-link:hover {
  color: var(--tx);
  background: rgba(255, 255, 255, 0.03);
}

.mobile-menu-link.active {
  color: var(--g);
}

.mobile-menu-link.accent {
  color: var(--g);
}

.mobile-menu-divider {
  height: 0.5px;
  background: var(--bdr);
  margin: 0.5rem 2.5rem;
}

.actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.actions .btn,
.actions a {
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* SVG logo fill classes */
.cls-1 { fill: #f1f1f1; }
.cls-2 { fill: #27ad81; }
.cls-3 { fill: #3489f9; }

/* ------------------------------------------------------------
   6. TAB BAR
   ------------------------------------------------------------ */
.tab-bar {
  display: flex;
  border-bottom: 0.5px solid var(--bdr);
  background: var(--surf);
}

.tab-bar > div:first-child {
  display: flex;
  flex: 1;
}

.tab {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  color: rgba(238, 244, 241, 0.4);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  border-right: 0.5px solid var(--bdr);
  text-decoration: none;
  display: inline-block;
  transition: color 0.2s, border-color 0.2s;
}

.tab:hover {
  color: rgba(238, 244, 241, 0.6);
}

.tab.active {
  color: var(--g);
  border-bottom-color: var(--g);
  background: var(--surf2);
}

/* ------------------------------------------------------------
   7. LAYOUT
   ------------------------------------------------------------ */
.sec {
  padding: var(--sp-xl) var(--sp-lg);
  border-bottom: 0.5px solid var(--bdr);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 0.5px solid var(--bdr);
}

.split-l {
  padding: var(--sp-xl) var(--sp-xl) var(--sp-xl) var(--sp-lg);
  border-right: 0.5px solid var(--bdr);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.split-r {
  padding: var(--sp-xl) var(--sp-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 0.5px solid var(--bdr);
}

.hero-l {
  padding: var(--sp-2xl) var(--sp-xl) var(--sp-2xl) var(--sp-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 0.5px solid var(--bdr);
}

.hero-r {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  background: #000;
}

.hero-r img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  filter: contrast(1.05) brightness(0.9);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(5, 16, 13, 0.75) 0%, transparent 60%);
}

/* Main content wrapper (login page) */
.main {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex: 1;
  padding: var(--sp-2xl) var(--sp-lg);
}

/* ------------------------------------------------------------
   8. BUTTONS
   ------------------------------------------------------------ */
.btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border-radius: 3px;
  cursor: pointer;
  border: none;
  display: inline-block;
  white-space: nowrap;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn:active {
  transform: scale(0.97);
}

.btn-g {
  color: #fff;
  background: var(--g);
}

.btn-g:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(39, 173, 129, 0.3);
}

.btn-g:active {
  transform: scale(0.97) translateY(0);
  box-shadow: none;
}

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.coming-soon {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(238,244,241,0.35);
  margin-top: 0.5rem;
}

.btn-ghost {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.6rem 1.2rem;
  border-radius: 3px;
  cursor: pointer;
  border: 0.5px solid var(--bdrm);
  background: transparent;
  color: rgba(238, 244, 241, 0.65);
  text-decoration: none;
  display: inline-block;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}

.btn-ghost:hover {
  color: var(--tx);
  border-color: rgba(238, 244, 241, 0.35);
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:active {
  transform: scale(0.97);
}

/* ------------------------------------------------------------
   9. STATS
   ------------------------------------------------------------ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 0.5px solid var(--bdr);
  overflow: visible;
  position: relative;
  z-index: 1;
}

.stat {
  padding: var(--sp-md) var(--sp-lg);
  border-right: 0.5px solid var(--bdr);
  position: relative;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.stat:hover {
  background: var(--surf2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.stat:last-child {
  border-right: none;
}

.stat-n {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
  margin-bottom: 0.3rem;
  transition: color 0.3s ease;
}

.stat:hover .stat-n {
  color: var(--g);
}

.stat-l {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.4);
}

.perf-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(39, 173, 129, 0.7);
  margin-bottom: 0.35rem;
}

.perf-label.b {
  color: rgba(52, 137, 249, 0.7);
}

/* ------------------------------------------------------------
   10. CARDS
   ------------------------------------------------------------ */
.card-grid {
  display: grid;
  gap: 1px;
  background: var(--bdr);
  border: 0.5px solid var(--bdr);
  border-radius: 4px;
  overflow: hidden;
}

.card {
  background: var(--dark);
  padding: 2rem;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  border-color: rgba(238, 244, 241, 0.14);
  background: var(--surf2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card.featured:hover {
  box-shadow: 0 0 20px rgba(39, 173, 129, 0.1);
}

.card.featured {
  background: var(--surf2);
  border-left: 2px solid var(--g);
}

.card.featured.b {
  border-left-color: var(--b);
}

.feat-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  color: rgba(39, 173, 129, 0.6);
}

.feat-tag.b {
  color: rgba(52, 137, 249, 0.6);
}

/* ------------------------------------------------------------
   11. INSIGHTS
   ------------------------------------------------------------ */
.insight {
  border-radius: 0 4px 4px 0;
  padding: 1.25rem 1.75rem;
  margin-top: 1.75rem;
}

.insight.g {
  background: rgba(39, 173, 129, 0.07);
  border-left: 2px solid var(--g);
}

.insight.b {
  background: rgba(52, 137, 249, 0.06);
  border-left: 2px solid var(--b);
}

.insight p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(238, 244, 241, 0.75);
  font-weight: 300;
}

.insight strong {
  color: var(--heading);
  font-weight: 600;
}

/* ------------------------------------------------------------
   12. USE CASES
   ------------------------------------------------------------ */
.use-case {
  padding: 1rem 1.25rem;
  border: 0.5px solid var(--bdrm);
  border-radius: 3px;
  margin-bottom: 0.65rem;
  background: rgba(255, 255, 255, 0.01);
}

.use-case-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(39, 173, 129, 0.6);
  margin-bottom: 0.25rem;
}

.use-case-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.25rem;
}

.use-case-desc {
  font-size: 12.5px;
  color: rgba(238, 244, 241, 0.65);
  font-weight: 300;
  line-height: 1.5;
}

/* ------------------------------------------------------------
   13. FORMS
   ------------------------------------------------------------ */
.form-section-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--heading);
  margin-bottom: 1.75rem;
}

.field {
  margin-bottom: 1.2rem;
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.45);
  margin-bottom: 0.45rem;
}

.field label span {
  color: var(--g);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--surf2);
  border: 0.5px solid var(--bdrm);
  border-radius: 3px;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--tx);
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--g);
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(238, 244, 241, 0.25);
}

.field textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.6;
}

.field select option {
  background: var(--surf2);
  color: var(--tx);
}

.required-note {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(238, 244, 241, 0.25);
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.75rem;
}

.forgot {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(238, 244, 241, 0.3);
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 0.2s;
}

.forgot:hover {
  color: var(--g);
}

/* Form side (contact page) */
.form-side {
  padding: var(--sp-xl) var(--sp-lg);
  width: 100%;
  max-width: 560px;
}

/* Info side content (contact page) */
.info-block .eyebrow {
  margin-bottom: 0.5rem;
}

.info-block h3 {
  margin-bottom: 0.6rem;
}

.info-block p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(238, 244, 241, 0.65);
  font-weight: 300;
}

.divider {
  height: 0.5px;
  background: var(--bdr);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.3);
}

.contact-value {
  font-size: 14px;
  color: rgba(238, 244, 241, 0.75);
}

.contact-value a {
  color: var(--g);
  text-decoration: none;
}

.contact-value a:hover {
  text-decoration: underline;
}

/* ------------------------------------------------------------
   14. CTA BAND
   ------------------------------------------------------------ */
.cta-band {
  background: var(--surf2);
  border-top: 0.5px solid var(--bdrm);
  border-bottom: 0.5px solid var(--bdrm);
  padding: var(--sp-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cta-band-text h3 {
  margin-bottom: 0.4rem;
}

.cta-band-text p {
  font-size: 14px;
  color: var(--mu);
  font-weight: 300;
}

/* ------------------------------------------------------------
   19b. NEWSLETTER BAND
   ------------------------------------------------------------ */
.newsletter-band {
  padding: var(--sp-xl) var(--sp-lg);
  border-bottom: 0.5px solid var(--bdr);
  text-align: center;
}

.newsletter-band .eyebrow {
  margin-bottom: 0.5rem;
}

.newsletter-band h3 {
  margin-bottom: 0.4rem;
}

.newsletter-band p {
  font-size: 14px;
  color: var(--mu);
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  background: var(--surf2);
  border: 0.5px solid var(--bdrm);
  border-radius: 3px;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--tx);
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-form input:focus {
  border-color: var(--g);
}

.newsletter-form input::placeholder {
  color: rgba(238, 244, 241, 0.25);
}

/* Hidden honeypot */
.newsletter-hp {
  position: absolute;
  left: -5000px;
}

/* ------------------------------------------------------------
   20. FOOTER
   ------------------------------------------------------------ */
footer {
  padding: var(--sp-md) var(--sp-lg);
  border-top: 0.5px solid var(--bdr);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

/* Footer variant for full-page layouts (contact, login) */
footer.full-page-footer {
  margin-top: auto;
  background: var(--surf);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  justify-content: flex-end;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(238, 244, 241, 0.25);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: rgba(238, 244, 241, 0.5);
}

.fcopy {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(238, 244, 241, 0.25);
  letter-spacing: 0.06em;
  text-align: center;
  white-space: nowrap;
}

/* Centered copyright variant (contact, login) */
.fcopy.centered {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

/* ------------------------------------------------------------
   21. NAV CENTER (contact / login pages)
   ------------------------------------------------------------ */
.nav-center {
  display: flex;
  gap: 0;
  list-style: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-center li a {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.5);
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  display: block;
  transition: color 0.2s;
}

.nav-center li a:hover,
.nav-center li a.active {
  color: var(--g);
}

/* ------------------------------------------------------------
   22. PAGE HERO (contact page)
   ------------------------------------------------------------ */
.page-hero {
  padding: var(--sp-2xl) var(--sp-lg) var(--sp-xl);
  border-bottom: 0.5px solid var(--bdr);
}

.subhead {
  font-size: 15px;
  line-height: 1.72;
  color: var(--mu);
  font-weight: 300;
  margin-top: 0.5rem;
}

/* ------------------------------------------------------------
   23. GALLERY / IMAGES (defense page)
   ------------------------------------------------------------ */
.img-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 0.5px solid var(--bdr);
}

.img-panel {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  background: #000;
}

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

.img-panel:first-child {
  border-right: 0.5px solid var(--bdr);
}

.img-cap {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(to top, rgba(5, 16, 13, 0.95) 0%, transparent 100%);
}

.img-cap-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(39, 173, 129, 0.7);
  margin-bottom: 0.3rem;
}

.img-cap-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--heading);
  line-height: 1.3;
}

.img-cap-desc {
  font-size: 12px;
  color: rgba(238, 244, 241, 0.55);
  font-weight: 300;
  margin-top: 0.25rem;
  line-height: 1.4;
}

/* ------------------------------------------------------------
   24. DIAGRAM PANEL (defense page)
   ------------------------------------------------------------ */
.diag-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-lg);
  background: var(--surf2);
  border-left: 0.5px solid var(--bdr);
  position: relative;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(39, 173, 129, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39, 173, 129, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
}

.diag-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(39, 173, 129, 0.5);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

/* ------------------------------------------------------------
   25. PERFORMANCE BLOCKS (defense page)
   ------------------------------------------------------------ */
.perf-block {
  padding: 1.1rem 1.25rem;
  border: 0.5px solid rgba(39, 173, 129, 0.2);
  border-radius: 3px;
  background: rgba(39, 173, 129, 0.05);
}

.perf-block.b {
  border-color: rgba(52, 137, 249, 0.2);
  background: rgba(52, 137, 249, 0.05);
}

.perf-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--g);
  letter-spacing: -0.02em;
  line-height: 1;
}

.perf-num.b {
  color: var(--b);
}

.perf-desc {
  font-size: 12.5px;
  color: rgba(238, 244, 241, 0.65);
  margin-top: 0.25rem;
  font-weight: 300;
}

/* ------------------------------------------------------------
   26. CHECK LIST (commercial page)
   ------------------------------------------------------------ */
.check-list {
  list-style: none;
  margin-top: 1rem;
}

.check-list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mu);
  font-weight: 300;
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.check-list li::before {
  content: "\2192"; /* right arrow */
  position: absolute;
  left: 0;
  color: var(--g);
  font-weight: 600;
}

/* ------------------------------------------------------------
   27. LOGIN CARD
   ------------------------------------------------------------ */
.card.login-card {
  width: 100%;
  max-width: 460px;
}

/* Login tab buttons */
.tabs {
  display: flex;
  border-bottom: 0.5px solid var(--bdr);
  margin-bottom: 2rem;
}

.tab-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  color: rgba(238, 244, 241, 0.4);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -0.5px;
  transition: color 0.2s, border-color 0.2s;
}

.tab-btn:hover {
  color: rgba(238, 244, 241, 0.6);
}

.tab-btn.active {
  color: var(--g);
  border-bottom-color: var(--g);
}

.tab-btn.active:hover {
  color: var(--g);
}

.tab-panel {
  display: none;
  opacity: 0;
  transform: translateY(8px);
}

.tab-panel.active {
  display: block;
  animation: panelFadeIn 0.35s ease-out forwards;
}

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ------------------------------------------------------------
   28. APP BUTTONS (login page)
   ------------------------------------------------------------ */
.app-block {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 0.5px solid var(--bdr);
}

.app-block-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.3);
  margin-bottom: 1rem;
}

.app-btns {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.app-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--surf2);
  border: 0.5px solid var(--bdrm);
  border-radius: 6px;
  padding: 0.6rem 1.1rem;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
  min-width: 150px;
}

.app-btn:hover {
  border-color: rgba(238, 244, 241, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

.app-btn-sub {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238, 244, 241, 0.35);
}

.app-btn-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--heading);
  letter-spacing: -0.01em;
}

/* ============================================================
   29. RESPONSIVE BREAKPOINTS
   ============================================================ */

/* ---- Tablet + Mobile: Hamburger Menu (max-width: 1024px) ---- */
@media (max-width: 1024px) {
  .menu-toggle {
    display: flex;
  }

  .nav-right,
  .nav-tabs,
  .nav-center {
    display: none !important;
  }

  .mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(5, 16, 13, 0.98);
    backdrop-filter: blur(8px);
    border-bottom: 0.5px solid var(--bdr);
    padding: 1rem 0;
    flex-direction: column;
    z-index: 200;
  }

  nav.menu-open .mobile-menu {
    display: flex;
  }
}

/* ---- Mobile (max-width: 768px) ---- */
@media (max-width: 768px) {

  /* Typography */
  h1 {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }

  h2 {
    font-size: 1.4rem;
  }

  /* Reduce section padding */
  .sec {
    padding: 1.25rem;
  }

  /* Nav: compact */
  nav {
    padding: 0.75rem 1.25rem;
  }

  /* nav-right/nav-tabs/nav-center already hidden by 1024px rule */

  /* Tab bar: horizontal scroll */
  .tab-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tab-bar::-webkit-scrollbar {
    display: none;
  }

  .tab {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 0.75rem 1.25rem;
    font-size: 10px;
  }

  /* Hero: single column */
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-l {
    padding: 2rem 1.25rem;
    border-right: none;
    border-bottom: 0.5px solid var(--bdr);
  }

  .hero-r {
    min-height: 240px;
  }

  /* Two-column: stack */
  .two-col {
    grid-template-columns: 1fr;
  }

  .split-l {
    padding: 1.5rem 1.25rem;
    border-right: none;
    border-bottom: 0.5px solid var(--bdr);
  }

  .split-r {
    padding: 1.5rem 1.25rem;
  }

  /* Stats: single column */
  .stats-row {
    grid-template-columns: 1fr;
  }

  .stat {
    padding: 1rem 1.25rem;
    border-right: none;
    border-bottom: 0.5px solid var(--bdr);
  }

  .stat:last-child {
    border-bottom: none;
  }

  /* Card grid: single column */
  .card-grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.5rem 1.25rem;
  }

  /* Traction grid: 2 columns on mobile */
  /* Image gallery: stack */
  .img-gallery {
    grid-template-columns: 1fr;
  }

  .img-panel:first-child {
    border-right: none;
    border-bottom: 0.5px solid var(--bdr);
  }

  .img-panel {
    min-height: 200px;
  }

  /* Diagram panel */
  .diag-panel {
    padding: 1.5rem 1.25rem;
    border-left: none;
    border-top: 0.5px solid var(--bdr);
  }

  /* CTA band: stack */
  .cta-band {
    flex-direction: column;
    padding: 1.5rem 1.25rem;
    text-align: center;
    gap: 1.25rem;
  }

  /* Page hero */
  .page-hero {
    padding: 2rem 1.25rem 1.5rem;
  }

  /* Footer: stacked */
  footer {
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
    text-align: center;
  }

  .footer-left {
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .fcopy.centered {
    position: static;
    transform: none;
  }

  /* Main content (login) */
  .main {
    padding: 2rem 1.25rem;
  }

  /* Actions — stack vertically, left-aligned, same height */
  .actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .actions .btn,
  .actions a {
    text-align: center;
    flex: none;
  }

  /* App buttons — stack centered, auto width */
  .app-btns {
    flex-direction: column;
    align-items: center;
  }

  .app-btn {
    min-width: 200px;
    width: auto;
    justify-content: center;
  }

  /* Newsletter form: stack */
  .newsletter-form {
    flex-direction: column;
  }

  /* Lead text: full width */
  .lead {
    max-width: 100%;
  }
}

/* ---- Tablet (769px - 1024px) ---- */
@media (min-width: 769px) and (max-width: 1024px) {

  /* Tighter section padding */
  .sec {
    padding: 2rem 1.5rem;
  }

  nav {
    padding: 0.85rem 1.5rem;
  }

  /* Hero: flexible columns */
  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
  }

  .hero-l {
    padding: 2.5rem 2rem 2.5rem 1.5rem;
  }

  .hero-r {
    min-height: 360px;
  }

  /* Two-column: tighter spacing */
  .split-l {
    padding: 2rem 2rem 2rem 1.5rem;
  }

  .split-r {
    padding: 2rem 1.5rem;
  }

  /* Card grid: 2 columns */
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Stats: keep 3 but tighter */
  .stat {
    padding: 1.25rem 1.5rem;
  }

  /* CTA band tighter */
  .cta-band {
    padding: 2rem 1.5rem;
  }

  /* Footer */
  footer {
    padding: 1.25rem 1.5rem;
  }

  /* Page hero */
  .page-hero {
    padding: 2.5rem 1.5rem 2rem;
  }

  /* Lead text */
  .lead {
    max-width: 100%;
  }
}

/* ============================================================
   30. FOCUS-VISIBLE STYLES (Accessibility)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--g);
  outline-offset: 2px;
}

.btn:focus-visible,
.btn-ghost:focus-visible {
  outline: 2px solid var(--g);
  outline-offset: 2px;
}

.tab:focus-visible,
.tab-btn:focus-visible {
  outline: 2px solid var(--g);
  outline-offset: -2px;
}

.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: none;
  border-color: var(--g);
  box-shadow: 0 0 0 1px var(--g);
}

.app-btn:focus-visible {
  outline: 2px solid var(--g);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 2px solid var(--g);
  outline-offset: 2px;
}

/* prefers-reduced-motion handled in animations.css */