/* ============================================================
   LMS Engineering — FlameTrace Website Styles
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Brand Colors */
  --flame-orange:   #FF6B35;
  --flame-amber:    #FFA500;
  --flame-red:      #E63946;
  --dark-bg:        #0A0E14;
  --dark-surface:   #111620;
  --dark-card:      #171E2B;
  --dark-border:    #1E2A3A;
  --mid-gray:       #8892A4;
  --light-gray:     #C5CDD9;
  --white:          #F0F4FA;
  --pure-white:     #FFFFFF;

  /* Typography */
  --font-primary:   'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-pad:    120px;
  --section-pad-sm: 72px;

  /* Transitions */
  --t-fast:  0.15s ease;
  --t-med:   0.3s ease;
  --t-slow:  0.6s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--dark-bg);
  color: var(--light-gray);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* --- Utility ---------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.container--narrow {
  max-width: 820px;
}

.text-center { text-align: center; }
.text-orange  { color: var(--flame-orange); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--flame-orange);
  padding: 6px 14px;
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-radius: 100px;
  background: rgba(255, 107, 53, 0.08);
}

.tag svg {
  display: inline;
  vertical-align: middle;
}

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--t-med);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--flame-orange), var(--flame-red));
  color: var(--pure-white);
  box-shadow: 0 4px 24px rgba(255, 107, 53, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  border: 1px solid var(--dark-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--flame-orange);
  border: 1px solid rgba(255, 107, 53, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 107, 53, 0.1);
  border-color: var(--flame-orange);
}

/* --- Section Headings ------------------------------------- */
.section-label {
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--mid-gray);
  max-width: 600px;
  line-height: 1.75;
}

/* --- Navigation ------------------------------------------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--t-med), border-color var(--t-med), padding var(--t-med), box-shadow var(--t-med);
}

#navbar.scrolled {
  background: rgba(10, 14, 20, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dark-border);
  padding: 14px 0;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 38px;
  height: 38px;
  background: transparent;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.8rem;
  color: white;
  letter-spacing: 0.05em;
  overflow: hidden;
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-text .brand-main {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.02em;
}

.nav-logo-text .brand-accent {
  color: var(--flame-orange);
  font-weight: 600;
}

.nav-logo-text .brand-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--mid-gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--mid-gray);
  transition: color var(--t-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--flame-orange);
  transition: width var(--t-med);
  border-radius: 2px;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--light-gray);
  border-radius: 2px;
  transition: all var(--t-med);
}

/* Mobile Nav */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--dark-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

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

.nav-mobile a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  transition: color var(--t-fast);
}

.nav-mobile a:hover {
  color: var(--flame-orange);
}

.nav-mobile-close {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--mid-gray);
  background: none;
  border: none;
  transition: color var(--t-fast);
}

.nav-mobile-close:hover {
  color: var(--white);
}

/* --- Hero ------------------------------------------------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(255, 107, 53, 0.12) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 80% 70%, rgba(230, 57, 70, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, var(--dark-bg) 0%, #0d1520 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 30%, transparent 80%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-content {
  max-width: 580px;
}

.hero-tag {
  margin-bottom: 28px;
}

.hero-headline {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-headline em {
  font-style: normal;
  background: linear-gradient(90deg, var(--flame-orange), var(--flame-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--mid-gray);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--dark-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-device {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.device-frame {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,107,53,0.1),
    0 30px 80px rgba(0,0,0,0.6),
    0 0 60px rgba(255,107,53,0.08);
}

.device-header {
  background: var(--dark-surface);
  border-bottom: 1px solid var(--dark-border);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.device-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.device-dot.red   { background: #FF5F57; }
.device-dot.amber { background: #FFBD2E; }
.device-dot.green { background: #28C840; }

.device-title {
  margin-left: 8px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--mid-gray);
}

.device-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.8;
}

.code-line {
  display: flex;
  gap: 16px;
}

.line-num {
  color: rgba(136,146,164,0.4);
  user-select: none;
  min-width: 20px;
  text-align: right;
}

.kw   { color: #C792EA; }
.fn   { color: #82AAFF; }
.str  { color: #C3E88D; }
.num  { color: #F78C6C; }
.cm   { color: #546E7A; font-style: italic; }
.op   { color: var(--flame-orange); }
.var  { color: var(--light-gray); }

/* Flame pulse ring */
.flame-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  border-radius: 50%;
  border: 1px solid rgba(255,107,53,0.1);
  animation: pulse-ring 3s ease-out infinite;
  pointer-events: none;
  z-index: -1;
}

.flame-ring:nth-child(2) { animation-delay: 1s; }
.flame-ring:nth-child(3) { animation-delay: 2s; }

@keyframes pulse-ring {
  0%   { transform: translate(-50%, -50%) scale(0.85); opacity: 0.6; }
  100% { transform: translate(-50%, -50%) scale(1.15); opacity: 0; }
}

/* --- Clients / Trust Bar ---------------------------------- */
#trust {
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
  padding: 40px 0;
  background: rgba(255,255,255,0.015);
}

.trust-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mid-gray);
  white-space: nowrap;
  flex-shrink: 0;
}

.trust-logos {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  flex: 1;
}

.trust-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(197, 205, 217, 0.5);
  letter-spacing: 0.04em;
  transition: color var(--t-med);
}

.trust-logo:hover {
  color: rgba(197, 205, 217, 0.85);
}

.trust-logo svg {
  opacity: 0.5;
}

/* --- Products --------------------------------------------- */
#products {
  padding: var(--section-pad) 0;
}

.products-header {
  margin-bottom: 80px;
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--dark-border);
  background: var(--dark-border);
}

.product-card {
  background: var(--dark-card);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
  transition: background var(--t-med);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--flame-orange), var(--flame-red));
  opacity: 0;
  transition: opacity var(--t-med);
}

.product-card:hover {
  background: #1a2236;
}

.product-card:hover::before {
  opacity: 1;
}

.product-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  font-size: 1.75rem;
}

.product-icon.software {
  background: rgba(130, 170, 255, 0.1);
  border: 1px solid rgba(130, 170, 255, 0.2);
}

.product-icon.hardware {
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.product-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--flame-orange);
  margin-bottom: 12px;
}

.product-name {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--mid-gray);
  line-height: 1.75;
  margin-bottom: 32px;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 40px;
}

.product-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--light-gray);
}

.feature-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.15);
  border: 1px solid rgba(255, 107, 53, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-check svg {
  width: 10px;
  height: 10px;
}

.product-bg-glyph {
  position: absolute;
  bottom: -30px;
  right: -20px;
  font-size: 10rem;
  opacity: 0.03;
  user-select: none;
  pointer-events: none;
  line-height: 1;
  transition: opacity var(--t-slow);
}

.product-card:hover .product-bg-glyph {
  opacity: 0.06;
}

/* --- Features / How It Works ------------------------------ */
#features {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, transparent, rgba(255,107,53,0.03), transparent);
}

.features-header {
  text-align: center;
  margin-bottom: 80px;
}

.features-header .section-desc {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: transform var(--t-med), border-color var(--t-med), box-shadow var(--t-med);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 107, 53, 0.1);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.4rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--mid-gray);
  line-height: 1.7;
}

/* --- Specs / Data ----------------------------------------- */
#specs {
  padding: var(--section-pad) 0;
}

.specs-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.specs-content {}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 32px;
}

.specs-table tr {
  border-bottom: 1px solid var(--dark-border);
  transition: background var(--t-fast);
}

.specs-table tr:hover {
  background: rgba(255,255,255,0.02);
}

.specs-table tr:last-child {
  border-bottom: none;
}

.specs-table td {
  padding: 16px 0;
  font-size: 0.9rem;
  vertical-align: top;
}

.specs-table td:first-child {
  color: var(--mid-gray);
  width: 40%;
  font-weight: 500;
}

.specs-table td:last-child {
  color: var(--light-gray);
  font-weight: 600;
}

.specs-visual {
  position: sticky;
  top: 120px;
}

.specs-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}

.specs-card-header {
  background: linear-gradient(135deg, rgba(255,107,53,0.12), rgba(230,57,70,0.08));
  border-bottom: 1px solid var(--dark-border);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.specs-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #28C840;
  box-shadow: 0 0 8px #28C840;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.specs-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.specs-card-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.metric-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metric-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
}

.metric-label span:first-child {
  color: var(--mid-gray);
}

.metric-label span:last-child {
  color: var(--white);
  font-weight: 600;
  font-family: var(--font-mono);
}

.metric-bar {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--flame-orange), var(--flame-amber));
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- About ------------------------------------------------ */
#about {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, transparent, rgba(17,22,32,0.8), transparent);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform var(--t-med);
}

.about-card:hover {
  transform: translateY(-4px);
}

.about-card.featured {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(255,107,53,0.08), rgba(230,57,70,0.05));
  border-color: rgba(255,107,53,0.2);
  display: flex;
  align-items: center;
  gap: 20px;
}

.about-card-icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.about-card.featured .about-card-icon {
  font-size: 2.5rem;
  margin-bottom: 0;
  flex-shrink: 0;
}

.about-card h4 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 6px;
}

.about-card p {
  font-size: 0.85rem;
  color: var(--mid-gray);
  line-height: 1.6;
}

.about-content .section-desc {
  margin-bottom: 28px;
}

.about-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.about-list-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.about-list-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--flame-orange);
  flex-shrink: 0;
  margin-top: 8px;
}

.about-list-item p {
  font-size: 0.95rem;
  color: var(--mid-gray);
  line-height: 1.7;
}

/* --- CTA -------------------------------------------------- */
#cta {
  padding: var(--section-pad) 0;
}

.cta-box {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 24px;
  padding: 80px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(255,107,53,0.1), transparent 60%);
  pointer-events: none;
}

.cta-box .section-title {
  margin-bottom: 16px;
}

.cta-box .section-desc {
  margin: 0 auto 40px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Contact Form ----------------------------------------- */
#contact {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--dark-border);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info {
  max-width: 400px;
}

.contact-info .section-desc {
  margin-bottom: 36px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  transition: border-color var(--t-med);
}

.contact-method:hover {
  border-color: rgba(255, 107, 53, 0.3);
}

.contact-method-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-method-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-method-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid-gray);
}

.contact-method-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
}

/* Form */
.contact-form {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  padding: 48px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mid-gray);
  margin-bottom: 10px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.95rem;
  color: var(--white);
  font-family: var(--font-primary);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(136, 146, 164, 0.5);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--flame-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.form-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238892A4' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* --- Footer ----------------------------------------------- */
footer {
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
  padding: 64px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--mid-gray);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 0.9rem;
  color: var(--mid-gray);
  transition: color var(--t-fast);
}

.footer-col ul a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--dark-border);
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--mid-gray);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--dark-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mid-gray);
  transition: all var(--t-fast);
  font-size: 0.9rem;
}

.social-btn:hover {
  background: rgba(255, 107, 53, 0.1);
  border-color: rgba(255, 107, 53, 0.3);
  color: var(--flame-orange);
}

/* --- Scroll Animations ------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* --- Responsive ------------------------------------------- */
@media (max-width: 1024px) {
  :root {
    --section-pad: 88px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-visual {
    display: none;
  }

  .specs-inner,
  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .specs-visual {
    position: static;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-pad: 64px;
  }

  .container {
    padding: 0 20px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .about-visual {
    display: none;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .contact-form {
    padding: 28px 20px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: 2.2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    flex-wrap: wrap;
  }

  .trust-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--dark-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--mid-gray);
}

/* --- Selection -------------------------------------------- */
::selection {
  background: rgba(255, 107, 53, 0.3);
  color: var(--white);
}

/* ============================================================
   Calculators Page
   ============================================================ */

/* Active nav link */
.nav-link-active {
  color: var(--flame-orange) !important;
}

/* Calculators hero */
#calc-hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}

.calc-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255,107,53,0.12), transparent 60%);
  pointer-events: none;
}

.calc-hero-inner {
  text-align: center;
}

/* Calculators section */
#calculators {
  padding: 0 0 var(--section-pad);
}

/* Tab navigation */
.calc-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--dark-border);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 32px;
  border: 1px solid var(--dark-border);
}

.calc-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: var(--dark-card);
  border: none;
  cursor: pointer;
  color: var(--mid-gray);
  font-family: var(--font-primary);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.4;
  transition: background var(--t-fast), color var(--t-fast);
}

.calc-tab:hover {
  background: #1a2236;
  color: var(--light-gray);
}

.calc-tab.active {
  background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(230,57,70,0.1));
  color: var(--flame-orange);
  box-shadow: inset 0 -2px 0 var(--flame-orange);
}

.calc-tab-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.calc-tab-label {
  white-space: nowrap;
}

/* Panel show/hide */
.calc-panel.hidden {
  display: none;
}

/* Calculator card */
.calc-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  overflow: hidden;
}

.calc-card-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 36px 40px;
  background: linear-gradient(135deg, rgba(255,107,53,0.06), rgba(230,57,70,0.04));
  border-bottom: 1px solid var(--dark-border);
}

.calc-card-icon {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 4px;
}

.calc-card-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.calc-card-desc {
  font-size: 0.9rem;
  color: var(--mid-gray);
  line-height: 1.7;
  max-width: 640px;
}

/* Calculator body: two-column layout */
.calc-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 400px;
}

.calc-inputs {
  padding: 36px 40px;
  border-right: 1px solid var(--dark-border);
}

.calc-results {
  padding: 36px 40px;
  background: rgba(255,107,53,0.02);
}

/* Input grid */
.calc-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 24px;
}

.calc-input-grid--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Group label */
.calc-group-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--flame-orange);
  margin: 28px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,107,53,0.2);
}

/* Unit badge */
.unit-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--mid-gray);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--dark-border);
  border-radius: 4px;
  padding: 1px 5px;
  margin-left: 4px;
  font-family: var(--font-mono);
  vertical-align: middle;
}

/* Tooltip hint icon */
.input-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  color: var(--mid-gray);
  font-size: 0.65rem;
  cursor: help;
  vertical-align: middle;
  margin-left: 4px;
  transition: background var(--t-fast), color var(--t-fast);
}

.input-hint:hover {
  background: rgba(255,107,53,0.15);
  color: var(--flame-orange);
}

/* Error message */
.calc-error {
  background: rgba(230, 57, 70, 0.1);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-radius: 8px;
  color: #f87171;
  font-size: 0.875rem;
  padding: 12px 16px;
  margin-bottom: 16px;
}

/* Calculate button */
.calc-submit {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
}

/* Results panel */
.results-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--flame-orange);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,107,53,0.2);
}

.result-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.result-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  padding: 16px 18px;
  transition: border-color var(--t-fast);
}

.result-card--primary {
  background: rgba(255,107,53,0.06);
  border-color: rgba(255,107,53,0.25);
  grid-column: span 2;
}

.result-card-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid-gray);
  margin-bottom: 6px;
}

.result-card-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.result-card--primary .result-card-value {
  color: var(--flame-orange);
  font-size: 2.2rem;
}

.result-card-unit {
  font-size: 0.78rem;
  color: var(--mid-gray);
  margin-top: 4px;
  font-family: var(--font-mono);
}

.result-note {
  font-size: 0.8rem;
  color: var(--mid-gray);
  line-height: 1.6;
  padding: 12px 14px;
  background: rgba(255,255,255,0.03);
  border-left: 2px solid rgba(255,107,53,0.4);
  border-radius: 0 8px 8px 0;
  margin-top: 8px;
}

/* Gear ratio results table */
.gear-results-table {
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
}

.gear-results-header {
  display: grid;
  grid-template-columns: 60px 80px 1fr 100px;
  gap: 0;
  background: rgba(255,107,53,0.08);
  padding: 10px 16px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid-gray);
  border-bottom: 1px solid var(--dark-border);
}

.gear-result-row {
  display: grid;
  grid-template-columns: 60px 80px 1fr 100px;
  gap: 0;
  padding: 12px 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--dark-border);
  align-items: center;
  transition: background var(--t-fast);
}

.gear-result-row:last-child {
  border-bottom: none;
}

.gear-result-row:hover {
  background: rgba(255,255,255,0.02);
}

.gear-result-row--skip {
  opacity: 0.35;
}

.gear-ratio-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--mid-gray);
}

.gear-speed-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--flame-orange);
}

.gear-speed-val em {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--mid-gray);
  font-weight: 400;
}

.gear-overall-val {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mid-gray);
}

/* Tire size helper accordion */
.calc-accordion {
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  overflow: hidden;
  margin: 16px 0;
}

.calc-accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--light-gray);
  background: rgba(255,255,255,0.03);
  user-select: none;
  list-style: none;
  transition: background var(--t-fast);
}

.calc-accordion-summary:hover {
  background: rgba(255,255,255,0.06);
}

.calc-accordion-summary::-webkit-details-marker { display: none; }

.calc-accordion[open] .calc-accordion-arrow {
  transform: rotate(180deg);
}

.calc-accordion-arrow {
  font-size: 0.8rem;
  color: var(--mid-gray);
  transition: transform var(--t-fast);
}

.calc-accordion-body {
  padding: 20px 18px;
  border-top: 1px solid var(--dark-border);
}

.calc-accordion-desc {
  font-size: 0.85rem;
  color: var(--mid-gray);
  margin-bottom: 16px;
}

.calc-accordion-desc code {
  background: rgba(255,255,255,0.07);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--flame-orange);
}

.tire-helper-result {
  margin-top: 14px;
  padding: 12px 14px;
  background: rgba(255,107,53,0.08);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--light-gray);
}

.tire-helper-result--error {
  background: rgba(230,57,70,0.08);
  border-color: rgba(230,57,70,0.25);
  color: #f87171;
}

.btn-link {
  background: none;
  border: none;
  color: var(--flame-orange);
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  text-decoration: underline;
  padding: 0;
}

.btn-link:hover {
  color: var(--flame-amber);
}

/* Header lengths section */
.header-lengths-section {
  margin: 20px 0 16px;
}

.header-lengths-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid-gray);
  margin-bottom: 8px;
}

.header-lengths-desc {
  font-size: 0.82rem;
  color: var(--mid-gray);
  line-height: 1.6;
  margin-bottom: 16px;
}

.header-length-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.header-length-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  transition: border-color var(--t-fast);
}

.header-length-row:hover {
  border-color: rgba(255,107,53,0.25);
}

.header-length-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.header-length-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
}

.header-length-note {
  font-size: 0.75rem;
  color: var(--mid-gray);
}

.header-length-value {
  font-size: 1.4rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--flame-orange);
  white-space: nowrap;
  flex-shrink: 0;
}

.header-length-value em {
  font-style: normal;
  font-size: 0.8rem;
  color: var(--mid-gray);
  font-weight: 400;
}

/* Responsive: calculators */
@media (max-width: 1024px) {
  .calc-body {
    grid-template-columns: 1fr;
  }
  .calc-inputs {
    border-right: none;
    border-bottom: 1px solid var(--dark-border);
  }
}

@media (max-width: 768px) {
  .calc-tabs {
    grid-template-columns: 1fr 1fr;
  }
  .calc-card-header {
    padding: 24px 20px;
  }
  .calc-inputs,
  .calc-results {
    padding: 24px 20px;
  }
  .calc-input-grid,
  .calc-input-grid--3 {
    grid-template-columns: 1fr;
  }
  .result-cards {
    grid-template-columns: 1fr;
  }
  .result-card--primary {
    grid-column: span 1;
  }
  .gear-results-header,
  .gear-result-row {
    grid-template-columns: 48px 70px 1fr;
  }
  .gear-results-header span:last-child,
  .gear-result-row .gear-overall-val {
    display: none;
  }
  .header-length-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .calc-tabs {
    grid-template-columns: 1fr 1fr;
  }
  .calc-tab-label {
    font-size: 0.72rem;
  }
}

/* ============================================================
   FLAMETRACE IN-BROWSER INTERACTIVE WORKSTATION
   ============================================================ */

.nav-logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 0 16px rgba(255, 107, 53, 0.4);
  transition: transform var(--t-fast);
}

.nav-logo:hover .nav-logo-img {
  transform: scale(1.05);
}

/* Section styling for workstation */
#workstation {
  padding: var(--section-pad) 0;
  background: radial-gradient(circle at 50% 20%, rgba(255, 107, 53, 0.05) 0%, transparent 60%),
              linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
  position: relative;
  overflow: hidden;
}

.workstation-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}

/* The desktop window shell */
.ft-window {
  background: #11141A;
  border: 1px solid #232B38;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7),
              0 0 0 1px rgba(255, 255, 255, 0.05),
              0 0 40px rgba(255, 107, 53, 0.12);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  margin-top: 36px;
}

/* Window title bar */
.ft-titlebar {
  background: #0E1015;
  border-bottom: 1px solid #1C222D;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}

.ft-title-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ft-title-icon {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.5);
}

.ft-title-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: #DDE3ED;
  letter-spacing: 0.02em;
}

.ft-title-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(0, 210, 255, 0.12);
  color: #00D2FF;
  border: 1px solid rgba(0, 210, 255, 0.3);
  letter-spacing: 0.04em;
}

.ft-title-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ft-win-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  opacity: 0.8;
}
.ft-win-btn.close { background: #FF5F56; }
.ft-win-btn.min   { background: #FFBD2E; }
.ft-win-btn.max   { background: #27C93F; }

/* Menu bar */
.ft-menubar {
  background: #141820;
  border-bottom: 1px solid #1F2735;
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.8rem;
  color: #8C98AC;
  user-select: none;
}

.ft-menu-item {
  cursor: pointer;
  transition: color var(--t-fast);
}
.ft-menu-item:hover, .ft-menu-item.active {
  color: #FFFFFF;
}

/* VCR Transport toolbar */
.ft-transport {
  background: #171C26;
  border-bottom: 1px solid #242D3D;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.ft-vcr-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ft-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #202735;
  color: #C5CDD9;
  border: 1px solid #2F3B4E;
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-fast);
  user-select: none;
}
.ft-btn:hover {
  background: #2A3446;
  border-color: #3F4F69;
  color: #FFFFFF;
}
.ft-btn-primary {
  background: rgba(255, 107, 53, 0.15);
  border-color: rgba(255, 107, 53, 0.5);
  color: #FF6B35;
}
.ft-btn-primary:hover {
  background: #FF6B35;
  color: #FFFFFF;
  box-shadow: 0 0 16px rgba(255, 107, 53, 0.4);
}

.ft-cycle-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #0E1218;
  border: 1px solid #232B38;
  border-radius: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #DDE3ED;
}

.ft-cycle-val {
  color: #FF6B35;
  font-weight: 700;
}

/* Cycle scrubber slider */
.ft-scrubber-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 400px;
}

.ft-scrubber-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #8C98AC;
  white-space: nowrap;
}

.ft-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #252D3C;
  outline: none;
  cursor: pointer;
}
.ft-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FF6B35;
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.7);
  cursor: pointer;
  transition: transform var(--t-fast);
}
.ft-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Preset mode pills */
.ft-mode-pills {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ft-mode-pill {
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  background: #1C222E;
  color: #8C98AC;
  border: 1px solid #293344;
  transition: all var(--t-fast);
}
.ft-mode-pill:hover {
  color: #DDE3ED;
  border-color: #3B4961;
}
.ft-mode-pill.active {
  background: rgba(255, 107, 53, 0.16);
  border-color: #FF6B35;
  color: #FF6B35;
}

/* Tab bar */
.ft-tabbar {
  background: #11141B;
  border-bottom: 1px solid #1C2330;
  display: flex;
  align-items: center;
  padding: 0 12px;
}

.ft-tab {
  padding: 8px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #79869C;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 2px solid transparent;
  cursor: pointer;
  user-select: none;
  background: transparent;
}
.ft-tab.active {
  color: #F0F4FA;
  background: #181E29;
  border-top: 2px solid #FF6B35;
  border-right: 1px solid #232B3A;
  border-left: 1px solid #232B3A;
}

/* Canvas plot workspace */
.ft-plot-container {
  position: relative;
  background: #090C10;
  padding: 16px 20px 10px 20px;
}

.ft-plot-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.76rem;
  color: #8C98AC;
}

.ft-plot-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.ft-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.ft-legend-swatch {
  width: 14px;
  height: 3px;
  border-radius: 2px;
}
.ft-legend-swatch.dashed {
  border-top: 2px dashed;
  background: transparent;
}

/* Chart Canvas Wrapper */
.ft-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 380px;
  border: 1px solid #1D2430;
  border-radius: 6px;
  background: #0B0E14;
  overflow: hidden;
  cursor: crosshair;
}

.ft-canvas-wrapper canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Readout HUD floating over chart */
.ft-readout-hud {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(14, 18, 25, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid #253042;
  border-radius: 6px;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #DDE3ED;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  z-index: 10;
}

.ft-hud-row {
  display: grid;
  grid-template-columns: 46px 72px 72px 55px 55px;
  gap: 8px;
  line-height: 1.5;
}
.ft-hud-row.hdr {
  color: #79869C;
  border-bottom: 1px solid #232B3A;
  padding-bottom: 3px;
  margin-bottom: 3px;
  font-weight: 700;
}
.ft-hud-row.a { color: #FF9100; }
.ft-hud-row.b { color: #00D2FF; }
.ft-hud-row.delta { color: #28C840; font-weight: 700; border-top: 1px solid #1E2635; padding-top: 3px; }

/* Lower Heat Release Rate Drawer */
.ft-hrr-drawer {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #19202B;
}

.ft-hrr-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #79869C;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ft-canvas-hrr-wrapper {
  width: 100%;
  height: 120px;
  border: 1px solid #1D2430;
  border-radius: 6px;
  background: #0B0E14;
  overflow: hidden;
}

.ft-canvas-hrr-wrapper canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Cycle Metrics Ribbon */
.ft-metrics-ribbon {
  background: #11151D;
  border-top: 1px solid #1F2735;
  border-bottom: 1px solid #1F2735;
  padding: 14px 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.ft-metric-card {
  background: #151A24;
  border: 1px solid #242D3D;
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color var(--t-fast);
}
.ft-metric-card:hover {
  border-color: rgba(255, 107, 53, 0.4);
}

.ft-metric-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: #79869C;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ft-metric-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
}
.ft-metric-val.accent { color: #FF6B35; }
.ft-metric-val.cyan   { color: #00D2FF; }
.ft-metric-val.green  { color: #28C840; }

.ft-metric-sub {
  font-size: 0.68rem;
  color: #8C98AC;
}

/* Status Bar */
.ft-statusbar {
  background: #0C0F14;
  padding: 8px 16px;
  font-size: 0.74rem;
  color: #6C7A90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}

.ft-status-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ft-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #28C840;
  box-shadow: 0 0 6px #28C840;
}

/* Hardware BNC faceplate graphic */
.daq-faceplate {
  background: #0F141C;
  border: 1px solid #222C3D;
  border-radius: 12px;
  padding: 24px;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.6);
  margin-top: 24px;
}

.bnc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.bnc-jack {
  background: #151C27;
  border: 1px solid #2B374A;
  border-radius: 8px;
  padding: 12px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all var(--t-fast);
}
.bnc-jack:hover {
  border-color: #FF6B35;
  background: #1B2433;
}

.bnc-port {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: radial-gradient(circle, #0B0E14 40%, #3A465B 45%, #252E3D 80%);
  border: 2px solid #5A6A85;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.6);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bnc-port::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #FF6B35;
  box-shadow: 0 0 6px rgba(255, 107, 53, 0.8);
}
.bnc-jack.ai .bnc-port::after { background: #00D2FF; box-shadow: 0 0 6px #00D2FF; }
.bnc-jack.ao .bnc-port::after { background: #FF9100; box-shadow: 0 0 6px #FF9100; }
.bnc-jack.dio .bnc-port::after { background: #28C840; box-shadow: 0 0 6px #28C840; }

.bnc-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: #DDE3ED;
}
.bnc-desc {
  font-size: 0.65rem;
  color: #79869C;
}

/* Modal lightbox for screenshots */
.screenshot-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(4, 6, 10, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 30px;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--t-med);
}
.screenshot-modal.open {
  display: flex;
  opacity: 1;
}

.modal-content {
  max-width: 1100px;
  width: 100%;
  max-height: 90vh;
  background: #111620;
  border: 1px solid #232E40;
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 16px 20px;
  background: #0E1218;
  border-bottom: 1px solid #1E2736;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
}

.modal-close {
  background: none;
  border: none;
  color: #8C98AC;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: color var(--t-fast);
}
.modal-close:hover {
  color: #FF6B35;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  text-align: center;
}

.modal-img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: 8px;
  border: 1px solid #232E40;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  margin: 0 auto;
}

.modal-caption {
  margin-top: 14px;
  font-size: 0.85rem;
  color: #9AA6B8;
  line-height: 1.6;
}

/* Feature card screenshot thumbnail */
.feature-thumb-wrap {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 16px;
  border: 1px solid var(--dark-border);
  cursor: pointer;
  transition: all var(--t-fast);
}
.feature-thumb-wrap:hover {
  border-color: var(--flame-orange);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.2);
}
.feature-thumb-wrap img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.feature-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 14, 20, 0.9) 100%);
  display: flex;
  align-items: flex-end;
  padding: 12px;
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  gap: 6px;
}