:root {
  --et-bg: #f2f6fc;
  --et-surface: #ffffff;
  --et-surface-soft: #f8fbff;
  --et-text: #0f172a;
  --et-text-muted: #526078;
  --et-border: #d9e2ef;
  --et-border-strong: #c3d0e3;
  --et-primary: #2a56c6;
  --et-primary-strong: #1f4398;
  --et-primary-soft: #eef3ff;
  --et-success: #0f766e;
  --et-warning: #4e6ea7;
  --et-danger: #be123c;
  --et-shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.08);
  --et-shadow-md: 0 12px 28px rgba(15, 23, 42, 0.12);
  --bs-font-sans-serif: 'Barlow', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --et-font-display: 'Sora', 'Barlow', system-ui, sans-serif;
  --bs-body-color: var(--et-text);
  --bs-body-bg: var(--et-bg);
  --bs-primary: var(--et-primary);
  --bs-primary-rgb: 42, 86, 198;
  --bs-secondary: #5b6b82;
  --bs-secondary-rgb: 91, 107, 130;
  --bs-warning: #8ea5d4;
  --bs-warning-rgb: 142, 165, 212;
  --bs-gray-100: #f3f7fe;
  --bs-gray-200: #e6eefb;
  --bs-gray-300: #d6e2f4;
  --bs-light: #f3f7fe;
  --bs-light-rgb: 243, 247, 254;
  --bs-secondary-bg: #eaf1fc;
  --bs-secondary-bg-rgb: 234, 241, 252;
  --bs-tertiary-bg: #f4f8fe;
  --bs-tertiary-bg-rgb: 244, 248, 254;
  --bs-border-color: #c9d7eb;
  --bs-border-color-translucent: rgba(94, 118, 157, 0.2);
  --bs-highlight-bg: #e8f0ff;
  --bs-link-color: var(--et-primary-strong);
  --bs-link-hover-color: var(--et-primary);
  --ref-gray-100: #f3f7fe !important;
  --ref-gray-300: #d6e2f4 !important;
  --ref-gray-600: #526078 !important;
  --ref-gray-700: #43556f !important;
}

html {
  scroll-behavior: smooth;
}

body.site-shell {
  font-family: var(--bs-font-sans-serif);
  color: var(--et-text);
  background:
    radial-gradient(circle at 14% -12%, rgba(120, 153, 207, 0.14), transparent 46%),
    radial-gradient(circle at 86% -14%, rgba(86, 112, 158, 0.1), transparent 42%),
    linear-gradient(180deg, #fbfdff 0%, var(--et-bg) 56%, #eaf0f8 100%);
}

main#main-content {
  min-height: calc(100dvh - 260px);
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2000;
  transform: translateY(-150%);
  background: var(--et-primary);
  color: #fff;
  border-radius: 0.5rem;
  padding: 0.55rem 0.8rem;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: var(--et-shadow-sm);
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--et-font-display);
  color: var(--et-text);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

p,
li,
small,
label,
span {
  color: inherit;
}

a {
  color: var(--et-primary-strong);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--et-primary);
}

.underline:after {
  background: #c8d8f2;
}

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

#mainNav {
  background: rgba(250, 253, 255, 0.94);
  border-bottom: 1px solid rgba(185, 198, 220, 0.74);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 22px rgba(20, 35, 68, 0.07);
}

#mainNav.navbar-shrink {
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

#mainNav .container {
  max-width: 1240px;
}

.navbar-brand img {
  display: block;
}

.navbar .navbar-toggler {
  border-color: var(--et-border-strong);
}

.navbar .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(30, 68, 217, 0.2);
}

.navbar .nav-link {
  color: #1f2c42;
  font-weight: 600;
  font-size: 0.94rem;
  border-radius: 0.7rem;
  padding: 0.42rem 0.68rem;
  border: 1px solid transparent;
  letter-spacing: 0.01em;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus-visible {
  color: #1b3f84;
  background: linear-gradient(180deg, #fbfdff 0%, #f1f5fc 100%);
  border-color: #d8e1f1;
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.07);
  transform: translateY(-1px);
}

.navbar .nav-link.active,
.navbar .show > .nav-link {
  color: #1b3b79;
  background: linear-gradient(180deg, #f5f8ff 0%, #eaf1fd 100%);
  border-color: #cddbf1;
  box-shadow: inset 0 -2px 0 rgba(42, 86, 198, 0.24);
}

.dropdown-menu {
  margin-top: 0.3rem;
  border: 1px solid var(--et-border);
  border-radius: 0.88rem;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.14);
  min-width: 260px;
  max-width: 360px;
  padding: 0.45rem;
  background: linear-gradient(180deg, #fbfdff 0%, #f2f7ff 100%);
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -0.55rem;
  left: 0;
  right: 0;
  height: 0.55rem;
}

.dropdown-item {
  color: #223247;
  border-radius: 0.58rem;
  font-weight: 500;
  white-space: normal;
  line-height: 1.34;
  padding: 0.53rem 0.7rem;
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  color: #193c73;
  background: linear-gradient(180deg, #f6f9ff 0%, #eaf1fc 100%);
  box-shadow: inset 3px 0 0 rgba(42, 86, 198, 0.42);
}

.dropdown-item:active {
  color: #183768;
  background: linear-gradient(180deg, #eef4ff 0%, #dee9fb 100%);
  box-shadow: inset 3px 0 0 rgba(42, 86, 198, 0.46);
}

.dropdown-item[aria-disabled='true'] {
  opacity: 0.55;
  pointer-events: none;
}

.card,
.modal-content,
.table-responsive,
.list-group,
.alert,
.border.rounded,
.border.rounded-3,
.border.rounded-4 {
  border-color: var(--et-border) !important;
}

.card,
.modal-content,
.table-responsive,
.list-group,
.border.rounded,
.border.rounded-3,
.border.rounded-4 {
  box-shadow: var(--et-shadow-sm);
}

.btn {
  border-radius: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--et-primary);
  border-color: var(--et-primary);
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-primary:active {
  background: var(--et-primary-strong) !important;
  border-color: var(--et-primary-strong) !important;
}

.btn-secondary {
  background: #5b6b82;
  border-color: #5b6b82;
  color: #ffffff;
}

.btn-secondary:hover,
.btn-secondary:focus-visible,
.btn-secondary:active {
  background: #495a71 !important;
  border-color: #495a71 !important;
  color: #ffffff !important;
}

.btn-warning {
  color: #223856;
  background: #dbe6fa;
  border-color: #c3d4f1;
}

.btn-warning:hover,
.btn-warning:focus-visible,
.btn-warning:active {
  color: #1a2f4d !important;
  background: #c8d8f4 !important;
  border-color: #afc4e8 !important;
}

.btn-outline-primary {
  color: #234ea8;
  border-color: #9fb4e3;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus-visible,
.btn-outline-primary:active {
  color: #ffffff !important;
  background: #234ea8 !important;
  border-color: #234ea8 !important;
}

.btn-outline-secondary {
  color: #334155;
  border-color: #97a6bb;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus-visible,
.btn-outline-secondary:active {
  color: #ffffff !important;
  background: #475569 !important;
  border-color: #475569 !important;
}

.btn-light {
  color: #223348;
  background: #f7f9fd;
  border-color: #dbe4f2;
}

.btn-light:hover,
.btn-light:focus-visible,
.btn-light:active {
  color: #18263a !important;
  background: #ebf1f9 !important;
  border-color: #cad7ea !important;
}

.btn-dark {
  background: #111827;
  border-color: #111827;
}

.btn-outline-dark {
  border-color: #2b3649;
  color: #162032;
}

.btn-outline-dark:hover,
.btn-outline-dark:focus-visible,
.btn-outline-dark:active {
  background: #162032;
  border-color: #162032;
  color: #fff;
}

.form-control,
.form-select {
  border-color: var(--et-border-strong);
  border-radius: 0.62rem;
  padding-top: 0.58rem;
  padding-bottom: 0.58rem;
  color: var(--et-text);
  background-color: #fff;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.05);
}

.form-control::placeholder,
.form-select::placeholder {
  color: #64748b;
}

.form-control:focus,
.form-select:focus {
  border-color: #88a3dd;
  box-shadow: 0 0 0 0.24rem rgba(42, 86, 198, 0.14);
}

.form-label {
  color: #1e293b;
  font-weight: 600;
}

.table {
  --bs-table-color: #1f2937;
}

.table thead th {
  color: #334155;
  font-weight: 700;
}

.alert {
  border-radius: 0.72rem;
}

.alert-success {
  color: #0f5132;
  background: #ecfdf3;
}

.alert-warning {
  color: #233a61;
  background: #eaf1ff;
  border-color: #c6d5ef;
}

.alert-danger {
  color: #8a1538;
  background: #fff1f5;
}

.badge {
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.38em 0.62em;
}

.badge.text-bg-secondary,
.badge.bg-secondary {
  color: #223856 !important;
  background: linear-gradient(180deg, #edf3fd 0%, #dee9f8 100%) !important;
  border: 1px solid #bccde8;
  box-shadow: inset 0 -1px 0 rgba(42, 86, 198, 0.16);
}

.badge.text-bg-warning,
.badge.bg-warning,
.text-bg-warning {
  color: #223856 !important;
  background: linear-gradient(180deg, #edf3fd 0%, #dee9f8 100%) !important;
  border: 1px solid #bccde8;
  box-shadow: inset 0 -1px 0 rgba(42, 86, 198, 0.16);
}

.et-site-footer {
  padding-top: 2.2rem;
  border-top: 1px solid rgba(189, 201, 221, 0.72);
  background: linear-gradient(180deg, rgba(247, 251, 255, 0.86), rgba(255, 255, 255, 0.98));
}

.et-site-footer .text-muted {
  color: #526177 !important;
}

.et-site-footer address {
  font-style: normal;
}

.et-footer-link {
  color: #1b3b95;
  text-decoration: none;
}

.et-footer-link:hover,
.et-footer-link:focus-visible {
  text-decoration: underline;
}

.et-coming-soon {
  padding-top: 8.5rem;
  padding-bottom: 4rem;
}

.et-coming-soon .et-coming-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid var(--et-border);
  border-radius: 1rem;
  box-shadow: var(--et-shadow-md);
}

.et-coming-soon .et-coming-kicker {
  color: #2446b4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 700;
}

.et-coming-soon .et-coming-title {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

.contact-form-panel {
  border: 1px solid var(--et-border);
  border-radius: 0.85rem;
  background: #fff;
  box-shadow: var(--et-shadow-sm);
}

.contact-form-panel .form-label {
  margin-bottom: 0.34rem;
}

.home-page .et-home-promo {
  border-top-left-radius: 2.25rem;
  border-top-right-radius: 1.75rem;
}

.home-page .et-home-promo-lead {
  color: #0f4f9b;
}

.home-page .et-home-promo-accent {
  color: #4e67aa;
}

.appointment-page .contact-info-card {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.appointment-page .appointment-info-panel {
  position: static !important;
  top: auto !important;
  align-self: auto !important;
}

.appointment-page .schedule-box {
  background: #f8f9fb;
  border: 1px solid #e9ecef;
}

.appointment-page #slotsWrap .btn {
  min-width: 88px;
}

.ecu-details-page .ecu-engine-trigger {
  border-color: #c6ced8;
  color: #1f2937;
  background-color: #ffffff;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.ecu-details-page .ecu-engine-trigger:hover,
.ecu-details-page .ecu-engine-trigger:focus {
  background-color: #f5f7fa;
  border-color: #9aa5b1;
  color: #111827;
  box-shadow: none;
  transform: translateY(-1px);
}

.ecu-details-page .ecu-generation-thumb {
  max-width: 180px;
  height: auto;
}

.chiptuning-page .underline strong,
.chiptuning-page .underline {
  color: #0f172a;
}

.chiptuning-page .et-tuning-intro {
  max-width: 860px;
  background: #fff;
  border: 1px solid var(--et-border);
  border-radius: 0.9rem;
  box-shadow: var(--et-shadow-sm);
}

.chiptuning-page .et-metric-row > .col-md-3 {
  box-shadow: inset 0 0 0 1px rgba(183, 197, 219, 0.62);
  border-radius: 0.2rem;
  background: #fff;
}

.chiptuning-page .fs-1 {
  text-wrap: pretty;
}

.chiptuning-page .et-chiptuning-text-block {
  max-width: 450px;
}

.chiptuning-page .accordion-button {
  font-weight: 600;
}

@media (max-width: 767.98px) {
  .chiptuning-page .et-metric-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-areas:
      "metric metric metric"
      "stock tuning diff";
    --bs-gutter-x: 0;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(183, 197, 219, 0.72);
    border-radius: 0.8rem;
    overflow: hidden;
    background: #fff;
  }

  .chiptuning-page .et-metric-row > .col-md-3 {
    width: 100%;
    max-width: 100%;
    box-shadow: none;
    border-radius: 0;
    padding: 0.55rem 0.55rem 0.5rem;
    background: transparent;
  }

  .chiptuning-page .et-metric-row > .col-md-3:first-child {
    grid-area: metric;
    border-bottom: 1px solid rgba(183, 197, 219, 0.72);
    background: linear-gradient(180deg, #f7faff 0%, #edf4ff 100%);
    padding: 0.58rem 0.7rem;
  }

  .chiptuning-page .et-metric-row > .col-md-3:nth-child(2) {
    grid-area: stock;
  }

  .chiptuning-page .et-metric-row > .col-md-3:nth-child(3) {
    grid-area: tuning;
    border-left: 1px solid rgba(183, 197, 219, 0.72);
    border-right: 1px solid rgba(183, 197, 219, 0.72);
  }

  .chiptuning-page .et-metric-row > .col-md-3:nth-child(4) {
    grid-area: diff;
  }

  .chiptuning-page .et-metric-row > .col-md-3:last-child {
    border-right: 0;
  }

  .chiptuning-page .et-metric-row h4 {
    margin: 0;
    font-size: 1.04rem;
    line-height: 1.2;
    letter-spacing: 0.01em;
  }

  .chiptuning-page .et-metric-row h6 {
    margin-bottom: 0.2rem;
    font-size: 0.76rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #43556f;
  }

  .chiptuning-page .et-metric-row .fs-1 {
    font-size: clamp(1.45rem, 5vw, 1.72rem) !important;
    line-height: 1.1;
    margin-bottom: 0;
  }

  .chiptuning-page .et-metric-row .fs-1 strong {
    letter-spacing: -0.01em;
  }
}

.tool-page section,
.tool-page header {
  position: relative;
}

.tool-page .et-tool-hero {
  padding-top: clamp(6.8rem, 11vw, 8.5rem) !important;
  padding-bottom: clamp(2.8rem, 6vw, 4.2rem) !important;
}

.tool-page .et-tool-hero-radial {
  background: radial-gradient(circle at top right, #f8fafc, #ffffff);
}

.tool-page .et-tool-hero-kicker {
  letter-spacing: 2px;
  font-size: 0.85rem;
}

.tool-page .et-tool-hero-title {
  letter-spacing: -1.5px;
  color: #0f172a;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
}

.tool-page .et-tool-hero-lead {
  max-width: 850px;
}

.tool-page .et-tool-hero-lead-comfy {
  line-height: 1.6;
}

.tool-page .et-tool-cta {
  border-radius: 8px;
}

.tool-page .et-sticky-panel {
  top: 6.1rem !important;
}

.tool-page .styled-list {
  list-style: none;
  padding-left: 0;
  margin-top: 0.9rem;
}

.tool-page .styled-list li {
  position: relative;
  padding-left: 1.05rem;
  margin-bottom: 0.55rem;
}

.tool-page .styled-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #3b82f6;
  font-weight: 700;
}

.tool-page .styled-list li strong {
  color: #0f172a;
}

.tool-page .et-cursor-pointer {
  cursor: pointer;
}

.tool-page .et-cursor-blocked {
  cursor: not-allowed;
}

.tool-page .et-alert-accent-gold {
  border-left: 4px solid #6688cc !important;
}

.tool-page .et-alert-accent-blue {
  border-left: 4px solid #3b82f6 !important;
}

.tool-page .et-icon-gold {
  color: #5e7fc2;
}

.tool-page .et-icon-blue {
  color: #3b82f6;
}

.tool-page .et-small-note {
  font-size: 11px;
}

.tool-page .et-spec-accent-gold {
  border-left: 4px solid #6688cc !important;
}

.tool-page .et-spec-accent-blue {
  border-left: 4px solid #007bff !important;
}

.tool-page .et-spec-accent-dark {
  border-left: 4px solid #1e293b !important;
}

.tool-page .et-legal-kicker {
  font-size: 0.7rem;
  letter-spacing: 1px;
}

.tool-page .et-preline {
  white-space: pre-line;
}

.tool-page .et-relaxed-text {
  line-height: 1.6;
}

.tool-page .et-tool-stat {
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--et-border);
  border-radius: 0.9rem;
  box-shadow: var(--et-shadow-sm);
  padding: 1rem;
}

.tool-page .et-tool-stat-label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #4c67b7;
  font-weight: 700;
}

.tool-page .et-tool-stat-value {
  font-size: 1.3rem;
  margin-bottom: 0.45rem;
}

.tool-page .et-workflow-card {
  background: #ffffff;
  border: 1px solid var(--et-border);
  border-radius: 0.85rem;
  box-shadow: var(--et-shadow-sm);
  padding: 1rem;
}

.tool-page .et-workflow-step {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #425eaf;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.et-copy-max-700 {
  max-width: 700px;
}

.et-copy-max-800 {
  max-width: 800px;
}

.et-scroll-offset {
  scroll-margin-top: 100px;
}

.et-alert-accent-gold {
  background-color: #fff;
  border-left: 5px solid #6688cc;
  color: #223856;
}

.bflash-page .bflash-features-panel {
  background-color: #0f172a;
}

.bflash-page .bflash-features-panel h2 {
  color: #f8fafc;
  letter-spacing: -0.5px;
}

.bflash-page .bflash-features-panel .text-secondary {
  color: #94a3b8 !important;
  line-height: 1.7;
}

.bflash-page .bflash-features-panel .badge {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 1px;
}

.bflash-page .bflash-features-panel .ratio-16x9 iframe {
  border: 0;
}

.kess3-page .container.mt-5 {
  margin-top: 6.9rem !important;
}

[data-bss-hover-animate]:hover {
  filter: saturate(1.02);
}

@media (max-width: 991.98px) {
  #mainNav {
    background: rgba(255, 255, 255, 0.98);
  }

  #mainNav .offcanvas {
    position: fixed;
    top: 0;
    left: 0;
    right: auto;
    bottom: 0;
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh;
    margin: 0;
    border-radius: 0;
    background: linear-gradient(180deg, rgba(252, 254, 255, 0.985) 0%, rgba(242, 247, 255, 0.985) 100%);
    border-right: 1px solid #d3dff1;
  }

  #mainNav .offcanvas .offcanvas-header {
    padding-top: calc(0.9rem + env(safe-area-inset-top));
    border-bottom: 1px solid #d6e2f4;
  }

  #mainNav .offcanvas .offcanvas-body {
    padding: 0.9rem 1rem calc(1rem + env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  #mainNav .offcanvas .navbar-nav {
    align-items: stretch !important;
    gap: 0.35rem;
  }

  #mainNav .offcanvas .nav-link {
    padding: 0.68rem 0.82rem;
  }

  #mainNav .offcanvas .dropdown-menu {
    min-width: 100%;
    max-width: none;
    position: static;
    inset: auto;
    transform: none;
    box-shadow: none;
    margin-top: 0.35rem;
    border-radius: 0.72rem;
    background: #f7faff;
    max-height: min(46dvh, 360px);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .offcanvas-backdrop.show {
    opacity: 0.28;
  }

  .et-coming-soon {
    padding-top: 6.8rem;
  }
}

@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;
  }
}