:root {
  color-scheme: light;
  --primary: #2e336f;
  --primary-dark: #202554;
  --secondary: #7a718f;
  --accent: #c65a3c;
  --dark: #0f1115;
  --gray: #625b70;
  --light: #efe7db;
  --white: #ffffff;
  --gradient: #2e336f;
  --line: rgba(15, 17, 21, 0.14);
  --surface-soft: #f7f3ed;
  --shadow: 0 12px 32px rgba(15, 17, 21, 0.08);
  --shadow-lg: 0 24px 64px rgba(15, 17, 21, 0.13);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--light);
  color: var(--dark);
  font-family: Inter, Arial, Helvetica, sans-serif;
  letter-spacing: -0.01em;
}

.container {
  width: min(100% - 48px, 1200px);
  max-width: none;
  padding: 0;
}

header {
  background: color-mix(in srgb, var(--light) 90%, transparent);
  border-bottom: 1px solid var(--line);
  box-shadow: none;
}

nav {
  min-height: 76px;
  padding: 12px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: none;
  color: var(--dark);
  font-family: Manrope, Arial, Helvetica, sans-serif;
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.04em;
  text-decoration: none;
  -webkit-text-fill-color: currentColor;
}

.logo img {
  width: 34px;
  height: 34px;
}

.nav-links {
  gap: 24px;
}

.nav-links a {
  color: var(--gray);
  font-size: 14px;
  font-weight: 550;
}

.nav-links a:hover {
  color: var(--primary);
}

.btn {
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 680;
  letter-spacing: -0.01em;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(46, 51, 111, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 10px 24px rgba(46, 51, 111, 0.27);
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--primary);
}

.btn-secondary:hover {
  border-color: rgba(46, 51, 111, 0.3);
  background: rgba(46, 51, 111, 0.07);
  color: var(--primary);
}

.btn:focus-visible,
.nav-links a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.tone-option:focus-visible,
.preview-actions button:focus-visible {
  outline: 3px solid rgba(198, 90, 60, 0.42);
  outline-offset: 3px;
}

.hero {
  padding: 148px 0 88px;
  background: transparent;
}

.hero::before {
  display: none;
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(360px, 5fr);
  gap: 72px;
  align-items: center;
  text-align: left;
}

.hero-copy {
  min-width: 0;
}

.badge,
.section-kicker {
  display: inline-flex;
  width: fit-content;
  color: var(--primary);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.07em;
  line-height: 1.2;
  text-transform: uppercase;
}

.badge {
  margin-bottom: 20px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: none;
}

.section-kicker {
  margin-bottom: 14px;
  color: var(--accent);
}

h1,
h2,
h3 {
  color: var(--dark);
  font-family: Manrope, Arial, Helvetica, sans-serif;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 11ch;
  margin-bottom: 22px;
  background: none;
  font-size: clamp(48px, 5.4vw, 72px);
  line-height: 0.98;
  -webkit-text-fill-color: currentColor;
}

.hero p {
  max-width: 620px;
  margin: 0 0 32px;
  color: var(--gray);
  font-size: 18px;
  line-height: 1.55;
}

.hero-buttons {
  justify-content: flex-start;
  gap: 12px;
}

.hero-preview {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
}

.preview-label,
.preview-reply > span {
  color: var(--secondary);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-author {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
}

.preview-avatar {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 10px;
  background: var(--light);
  color: var(--primary);
  font-weight: 750;
}

.preview-author span:nth-child(2) {
  display: grid;
  gap: 2px;
}

.preview-author strong {
  font-size: 14px;
}

.preview-author small {
  color: var(--gray);
  font-size: 12px;
}

.preview-author b {
  color: var(--primary);
  font-size: 13px;
}

.preview-review {
  margin: 20px 0 !important;
  color: var(--dark) !important;
  font-size: 15px !important;
}

.preview-reply {
  padding: 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: var(--surface-soft);
}

.preview-reply p {
  margin: 8px 0 0 !important;
  color: var(--dark) !important;
  font-size: 14px !important;
  line-height: 1.55 !important;
}

.preview-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.preview-actions button {
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--dark);
  font: inherit;
  font-size: 13px;
  font-weight: 650;
}

.preview-actions .preview-send {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(100%, 720px);
  gap: 12px;
  margin-top: 56px;
}

.stat-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.48);
  text-align: left;
}

.stat-number {
  background: none;
  color: var(--dark);
  font-size: 32px;
  line-height: 1;
  -webkit-text-fill-color: currentColor;
}

.stat-label {
  margin-top: 8px;
  color: var(--gray);
  font-size: 13px;
}

section {
  padding: 88px 0;
}

h2 {
  max-width: 20ch;
  margin-bottom: 16px;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.08;
  text-align: left;
}

.section-subtitle {
  max-width: 680px;
  margin: 0 0 40px;
  color: var(--gray);
  font-size: 17px;
  text-align: left;
}

.demo-section {
  background: rgba(255, 255, 255, 0.42);
}

.demo-container {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.demo-form {
  gap: 16px;
}

.form-row {
  gap: 16px;
}

label {
  color: var(--dark);
  font-size: 14px;
}

input,
textarea,
select {
  border: 1px solid rgba(15, 17, 21, 0.2);
  border-radius: 8px;
  background: var(--white);
  color: var(--dark);
  font-size: 15px;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 51, 111, 0.14);
}

.tone-selector {
  gap: 8px;
}

.tone-option {
  padding: 8px 12px;
  border: 1px solid rgba(15, 17, 21, 0.2);
  border-radius: 8px;
  background: var(--white);
  font-size: 14px;
}

.tone-option.active {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
}

.demo-output {
  display: flex;
  flex-direction: column;
  margin-top: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
}

.copy-btn {
  border-radius: 8px;
}

.error-message {
  grid-column: 1 / -1;
  border-radius: 8px;
}

.features-grid,
.pricing-grid,
.license-grid {
  gap: 16px;
  margin-top: 40px;
}

.feature-card,
.license-card,
.pricing-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  box-shadow: none;
}

.feature-card::before {
  height: 3px;
  background: var(--accent);
}

.feature-card:hover,
.license-card:hover,
.pricing-card:hover,
.pricing-card.featured:hover {
  transform: none;
  box-shadow: var(--shadow);
}

.feature-icon,
.license-icon {
  display: block;
  width: auto;
  height: auto;
  margin: 0 0 18px;
  border-radius: 0;
  background: none;
  color: var(--accent);
  font-family: Manrope, Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.license-card {
  text-align: left;
}

.pricing-section {
  background: rgba(46, 51, 111, 0.05);
}

.pricing-card.featured {
  transform: none;
  border: 2px solid var(--primary);
}

.pricing-card.featured::before {
  top: 18px;
  right: 18px;
  left: auto;
  transform: none;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--primary);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pricing-price {
  background: none;
  color: var(--dark);
  -webkit-text-fill-color: currentColor;
}

.pricing-features li {
  border-bottom-color: rgba(15, 17, 21, 0.08);
}

.cta-section {
  background: var(--primary);
  color: var(--white);
  text-align: left;
}

.cta-section h2 {
  color: var(--white);
}

.cta-section > .container > p {
  max-width: 680px;
}

.cta-form {
  margin: 36px 0 0;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

#trial-result {
  border: 1px solid rgba(46, 51, 111, 0.2) !important;
  border-radius: 8px !important;
  background: rgba(46, 51, 111, 0.07) !important;
  color: var(--primary) !important;
}

footer {
  padding: 64px 0 28px;
  background: var(--dark);
}

.footer-brand h3 {
  background: none;
  color: var(--white);
  -webkit-text-fill-color: currentColor;
}

@media (max-width: 900px) {
  .hero-content,
  .demo-container {
    grid-template-columns: 1fr;
  }

  .hero-content {
    gap: 40px;
  }

  .hero-preview {
    max-width: 620px;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 32px, 1200px);
  }

  nav {
    min-height: 64px;
  }

  .logo {
    font-size: 18px;
  }

  .logo img {
    width: 30px;
    height: 30px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 112px 0 64px;
  }

  h1 {
    font-size: clamp(42px, 13vw, 56px);
  }

  h2 {
    font-size: 32px;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 40px;
  }

  section {
    padding: 64px 0;
  }

  .demo-container,
  .cta-form {
    padding: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    gap: 28px;
  }
}

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

/* Tactile Engineering — physical computing layer */
:root {
  --steel-950: #0b0e11;
  --steel-900: #12171c;
  --steel-800: #1d242b;
  --steel-700: #2b343d;
  --aluminium-100: #f1f0eb;
  --aluminium-200: #deddd6;
  --aluminium-300: #c8c7bf;
  --diode: #ff5a2f;
  --diode-hot: #ff7a45;
  --physical-edge: rgba(255, 255, 255, 0.72);
  --physical-line: rgba(28, 34, 40, 0.26);
  --physical-raised:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    0 -1px 0 rgba(24, 28, 32, 0.18) inset,
    0 18px 42px rgba(7, 10, 13, 0.16),
    0 3px 8px rgba(7, 10, 13, 0.12);
  --physical-recessed:
    0 2px 5px rgba(12, 16, 20, 0.18) inset,
    0 -1px 0 rgba(255, 255, 255, 0.9) inset;
}

body {
  background:
    radial-gradient(circle at 18% 8%, rgba(255, 255, 255, 0.72), transparent 24rem),
    repeating-linear-gradient(105deg, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px 5px),
    var(--aluminium-200);
}

header {
  background:
    linear-gradient(180deg, rgba(42, 50, 58, 0.96), rgba(14, 18, 22, 0.98)),
    var(--steel-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  box-shadow: 0 12px 30px rgba(6, 9, 12, 0.28), 0 -1px 0 #050709 inset;
}

.logo {
  position: relative;
  min-height: 46px;
  padding: 7px 14px 7px 8px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 11px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(191, 193, 188, 0.88)),
    var(--aluminium-200);
  color: var(--steel-950);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 -2px 3px rgba(24, 28, 32, 0.2) inset,
    0 5px 14px rgba(0, 0, 0, 0.32);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.72);
}

.logo::after {
  width: 5px;
  height: 5px;
  margin-left: 2px;
  border-radius: 50%;
  background: var(--diode);
  box-shadow: 0 0 0 1px rgba(102, 23, 7, 0.7), 0 0 9px rgba(255, 90, 47, 0.9);
  content: "";
}

.logo img {
  padding: 4px;
  border: 1px solid rgba(20, 24, 28, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.28);
  box-shadow: var(--physical-recessed);
}

.nav-links a {
  color: #d8dce0;
  text-shadow: 0 1px 1px #000;
}

.nav-links a:hover {
  color: #ffffff;
}

.hero {
  isolation: isolate;
  background:
    radial-gradient(circle at 80% 35%, rgba(255, 90, 47, 0.12), transparent 24rem),
    linear-gradient(135deg, #2b333b 0%, #171c21 42%, #0c1014 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 -1px 0 #050709 inset, 0 24px 60px rgba(8, 11, 14, 0.22);
}

.hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    repeating-linear-gradient(112deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 7px),
    linear-gradient(90deg, transparent 49.9%, rgba(255, 255, 255, 0.025) 50%, transparent 50.1%);
  content: "";
  pointer-events: none;
}

.hero h1,
.hero h2 {
  color: #f4f2ec;
  text-shadow: 0 2px 0 #000, 0 12px 34px rgba(0, 0, 0, 0.4);
}

.hero p {
  color: #bec4c9;
}

.badge,
.stat-item,
.hero-preview {
  border-color: rgba(255, 255, 255, 0.72);
  background:
    linear-gradient(145deg, rgba(245, 245, 240, 0.97), rgba(188, 190, 186, 0.95)),
    var(--aluminium-200);
  box-shadow: var(--physical-raised);
}

.badge {
  color: #313940;
  text-shadow: 0 1px 0 #fff;
}

.hero-preview {
  position: relative;
  border-width: 1px;
  border-radius: 18px;
}

.hero-preview::before,
.hero-preview::after {
  position: absolute;
  top: 10px;
  width: 6px;
  height: 6px;
  border: 1px solid rgba(20, 24, 28, 0.44);
  border-radius: 50%;
  background: linear-gradient(145deg, #fafafa, #777d81);
  box-shadow: 0 1px 1px #fff inset, 0 1px 2px rgba(0, 0, 0, 0.35);
  content: "";
}

.hero-preview::before { left: 10px; }
.hero-preview::after { right: 10px; }

.preview-avatar,
.preview-reply,
.demo-output,
input,
textarea,
select {
  border-color: rgba(25, 30, 35, 0.3);
  background: rgba(232, 232, 226, 0.84);
  box-shadow: var(--physical-recessed);
}

.preview-reply {
  border-left-color: var(--diode);
  box-shadow: var(--physical-recessed), -5px 0 18px rgba(255, 90, 47, 0.1);
}

.btn,
.preview-actions button,
.copy-btn,
.tone-option {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 9px;
  background: linear-gradient(180deg, #353e46, #151a1f);
  color: #f5f4ef;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.22) inset,
    0 -2px 2px rgba(0, 0, 0, 0.45) inset,
    0 7px 14px rgba(4, 7, 9, 0.22);
  text-shadow: 0 1px 1px #000;
}

.btn.btn-secondary,
.btn.btn-secondary:link,
.btn.btn-secondary:visited,
.btn.btn-secondary:hover,
.btn.btn-secondary:focus,
.btn.btn-secondary:focus-visible,
.btn.btn-secondary:active {
  color: #f5f4ef !important;
  -webkit-text-fill-color: #f5f4ef !important;
}

.btn-primary,
.preview-actions .preview-send,
.tone-option.active {
  border-color: rgba(255, 122, 69, 0.58);
  background: linear-gradient(180deg, #343b41, #15191d);
  color: #ffffff;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.22) inset,
    0 -2px 2px rgba(0, 0, 0, 0.5) inset,
    0 0 0 1px rgba(255, 90, 47, 0.16),
    0 7px 16px rgba(5, 7, 9, 0.28);
}

.btn-primary::before,
.preview-actions .preview-send::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--diode);
  box-shadow: 0 0 8px var(--diode), 0 0 18px rgba(255, 90, 47, 0.58);
  content: "";
  vertical-align: 2px;
}

.btn:hover,
.preview-actions button:hover,
.copy-btn:hover,
.tone-option:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 122, 69, 0.62);
  background: linear-gradient(180deg, #3d474f, #1a2025);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 -2px 2px rgba(0, 0, 0, 0.48) inset,
    0 0 22px rgba(255, 90, 47, 0.18),
    0 9px 18px rgba(4, 7, 9, 0.28);
}

.btn:active,
.preview-actions button:active,
.copy-btn:active,
.tone-option:active {
  transform: translateY(2px);
  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.48) inset, 0 0 18px rgba(255, 90, 47, 0.18);
}

.stat-item {
  border-radius: 12px;
}

.stat-number {
  color: var(--steel-900);
  text-shadow: 0 1px 0 #fff;
}

.demo-section,
.pricing-section,
section[style] {
  background:
    repeating-linear-gradient(105deg, rgba(255, 255, 255, 0.13) 0 1px, transparent 1px 6px),
    var(--aluminium-200) !important;
}

.demo-container,
.feature-card,
.license-card,
.pricing-card,
.cta-form {
  border: 1px solid var(--physical-line);
  background:
    linear-gradient(145deg, rgba(249, 248, 243, 0.96), rgba(204, 203, 195, 0.96)),
    var(--aluminium-200);
  box-shadow: var(--physical-raised);
}

.feature-card::before {
  top: 18px;
  right: 18px;
  left: auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--diode);
  box-shadow: 0 0 10px rgba(255, 90, 47, 0.84);
}

.feature-card:hover,
.license-card:hover,
.pricing-card:hover,
.pricing-card.featured:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.78);
  box-shadow:
    0 1px 0 #fff inset,
    0 -1px 0 rgba(24, 28, 32, 0.18) inset,
    0 24px 52px rgba(7, 10, 13, 0.2);
}

.pricing-card.featured {
  border-color: rgba(255, 90, 47, 0.56);
  box-shadow: var(--physical-raised), 0 0 28px rgba(255, 90, 47, 0.12);
}

.pricing-card.featured::before {
  border: 1px solid rgba(255, 122, 69, 0.56);
  background: var(--steel-900);
  color: #fff;
  box-shadow: 0 0 18px rgba(255, 90, 47, 0.22);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--diode);
  box-shadow: var(--physical-recessed), 0 0 0 3px rgba(255, 90, 47, 0.16);
}

.cta-section,
footer {
  background:
    radial-gradient(circle at 75% 20%, rgba(255, 90, 47, 0.1), transparent 22rem),
    linear-gradient(145deg, var(--steel-800), var(--steel-950));
}

.cta-form label,
.cta-form p,
.cta-form #checkout-status {
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.62);
}

@media (max-width: 768px) {
  .logo {
    min-height: 40px;
    padding: 5px 10px 5px 6px;
  }

  .hero-preview {
    border-radius: 14px;
  }
}

/* Copy architecture — instrumentation labels */
.preview-field-label,
.module-spec-label,
.pricing-spec-label,
.pricing-description span,
.pricing-period span {
  display: block;
  margin-bottom: 5px;
  color: var(--twilight);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  line-height: 1.2;
  text-transform: uppercase;
}

.preview-field-label {
  margin-bottom: 8px;
}

.feature-card h3 small {
  display: block;
  margin-top: 6px;
  color: var(--twilight);
  font-family: Inter, Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.25;
  text-transform: uppercase;
}

.module-thesis {
  min-height: 48px;
  margin-top: 16px;
  color: var(--charcoal-soft);
  font-weight: 650;
}

.module-spec-label,
.pricing-spec-label {
  margin-top: 22px;
}

.pricing-description,
.pricing-period {
  line-height: 1.45;
}

.pricing-description span,
.pricing-period span {
  margin-top: 10px;
}

.pricing-price + .pricing-period {
  margin-top: 10px;
}

.system-note {
  margin-top: 16px;
  color: var(--twilight);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.01em;
  line-height: 1.55;
  text-align: left;
}

.cta-form .system-note {
  color: #4b4656 !important;
  text-shadow: none;
}

section {
  scroll-margin-top: 76px;
}

.cta-section .section-kicker {
  color: #ff8b62;
}

@media (min-width: 1101px) and (max-width: 1320px) {
  .nav-links {
    gap: 18px;
  }

  .nav-links a {
    font-size: 12px;
  }
}