/* ==========================================================================
   OTOPSI CHIP TUNING - Official Design System & Responsive Stylesheet
   OTO (Vehicle) + PSI (Pressure & Telemetry Diagnostics)
   ========================================================================== */

:root {
  /* Colors */
  --bg-darkest: #06080d;
  --bg-dark: #0a0e16;
  --bg-card: #101520;
  --bg-card-hover: #161e2e;
  --bg-elevated: #1a2233;

  --color-oto: #ffffff;
  --color-psi: #ff2a2a;
  --color-psi-glow: rgba(255, 42, 42, 0.4);

  --primary-red: #ff2a2a;
  --primary-red-hover: #e01b1b;
  --accent-cyan: #00d2ff;
  --accent-green: #25d366;
  --accent-green-hover: #20ba59;
  --accent-amber: #f59e0b;

  --text-white: #ffffff;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.14);
  --border-red: rgba(255, 42, 42, 0.35);

  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --container-max: 1220px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-red: 0 8px 25px rgba(255, 42, 42, 0.35);
  --shadow-green: 0 8px 25px rgba(37, 211, 102, 0.4);

  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-darkest);
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-darkest);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 70px; /* Space for mobile sticky CTA bar */
}

@media (min-width: 769px) {
  body {
    padding-bottom: 0;
  }
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-white);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.text-red { color: var(--primary-red); }
.text-cyan { color: var(--accent-cyan); }
.text-white { color: var(--text-white); }
.text-dim { color: var(--text-dim); }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }

.section-title-wrap {
  margin-bottom: 3rem;
}

.badge-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-red);
  background: rgba(255, 42, 42, 0.1);
  border: 1px solid rgba(255, 42, 42, 0.25);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.section-heading {
  font-size: 2.3rem;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* Top Bar */
.top-bar {
  background: #030407;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.45rem 0;
}

.top-bar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-link {
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.top-link:hover {
  color: var(--text-white);
}

.top-wa {
  color: var(--accent-green);
}

.top-wa:hover {
  color: #34d399;
}

/* Main Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 22, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

/* OTO + PSI Logo Design */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  margin-right: 2.25rem;
  flex-shrink: 0;
}

.site-logo-img {
  height: 42px;
  width: auto;
  max-height: 46px;
  object-fit: contain;
  display: block;
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.brand-logo:hover .site-logo-img {
  transform: scale(1.02);
  filter: drop-shadow(0 0 12px rgba(255, 42, 75, 0.45));
}

.footer-logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
  display: block;
  margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
  .site-logo-img {
    height: 38px;
    max-height: 40px;
  }
}

.logo-symbol {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #161e2e, #0a0e16);
  border: 1px solid rgba(255, 42, 42, 0.4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(255, 42, 42, 0.2);
}

.psi-svg {
  width: 22px;
  height: 22px;
  fill: var(--primary-red);
}

.logo-text-wrap {
  display: flex;
  flex-direction: column;
}

.logo-brand-name {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.logo-oto {
  color: var(--color-oto);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.logo-psi {
  color: var(--color-psi);
  text-shadow: 0 0 12px rgba(255, 42, 42, 0.6);
}

.logo-subtext {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-dim);
  font-weight: 700;
  margin-top: 3px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition-fast);
  padding: 0.3rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-white);
}

.nav-highlight {
  color: var(--primary-red) !important;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #ffffff;
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--font-heading);
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  white-space: nowrap;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-md {
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
}

.btn-lg {
  padding: 0.85rem 1.6rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

.btn-red {
  background: linear-gradient(135deg, var(--primary-red), #d61313);
  color: #ffffff;
  box-shadow: var(--shadow-red);
}

.btn-red:hover {
  background: linear-gradient(135deg, #ff4747, var(--primary-red));
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 42, 42, 0.5);
  color: #ffffff;
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #ffffff;
  box-shadow: var(--shadow-green);
}

.btn-whatsapp:hover {
  background: linear-gradient(135deg, #28e26e, #189e8f);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
  color: #ffffff;
}

.btn-call {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid var(--border-light);
}

.btn-call:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-white);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #ffffff;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 4rem 0 4.5rem;
  background: linear-gradient(180deg, #06080d 0%, #0c1018 100%);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 3rem;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(0, 180, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.32);
  color: #38bdf8;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.12);
  backdrop-filter: blur(8px);
  letter-spacing: 0.01em;
}

.badge-dot-live {
  width: 9px;
  height: 9px;
  background: #00d2ff;
  border-radius: 50%;
  box-shadow: 0 0 10px #00d2ff, 0 0 20px rgba(0, 210, 255, 0.7);
  animation: pulseDotBlue 1.6s infinite;
}

@keyframes pulseDotBlue {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 10px #00d2ff, 0 0 20px rgba(0, 210, 255, 0.7); }
  50% { opacity: 0.45; transform: scale(1.35); box-shadow: 0 0 16px #00d2ff, 0 0 30px rgba(0, 210, 255, 0.9); }
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.12;
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

/* Quick Search Box in Hero */
.search-widget-wrap {
  margin-bottom: 2rem;
  background: rgba(16, 21, 32, 0.85);
  border: 1px solid var(--border-red);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.search-input-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.search-icon {
  font-size: 1.1rem;
}

.search-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
}

.search-input::placeholder {
  color: var(--text-dim);
}

.quick-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border-subtle);
}

.quick-pill {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-fast);
}

.quick-pill:hover {
  background: rgba(255, 42, 42, 0.15);
  border-color: var(--primary-red);
  color: #ffffff;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-highlights-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.hh-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hh-check {
  color: var(--primary-red);
  font-weight: 800;
}

/* Anonymous Car Hero Visual */
.hero-car-card {
  position: relative;
}

.car-photo-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(255, 42, 42, 0.15);
}

.hero-car-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}

.photo-badge-top {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(6, 8, 13, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.card-stat-float {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(10, 14, 22, 0.92);
  backdrop-filter: blur(10px);
  border-left: 3px solid var(--primary-red);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.25rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

.csf-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 700;
  text-transform: uppercase;
}

.csf-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
}

/* Quick Strip */
.stats-strip {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: 2.25rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-box {
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* VEHICLE CALCULATOR SECTION */
.calculator-section {
  padding: 5.5rem 0;
  background: radial-gradient(circle at 50% 20%, rgba(255, 42, 42, 0.04) 0%, transparent 70%);
}

.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.calc-form {
  padding: 2rem 2.25rem;
  background: rgba(16, 21, 32, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}
.calc-quick-search {
  margin-bottom: 1.5rem;
  position: relative;
}

.quick-search-box {
  display: flex;
  align-items: center;
  background: #080b10;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  transition: var(--transition-fast);
}

.quick-search-box:focus-within {
  border-color: var(--primary-red);
  box-shadow: 0 0 12px rgba(255, 42, 42, 0.25);
}

.quick-search-icon {
  width: 18px;
  height: 18px;
  color: var(--text-dim);
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.quick-search-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
}

.quick-search-input::placeholder {
  color: var(--text-dim);
}

.quick-search-clear {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 0.4rem;
  line-height: 1;
}

.quick-search-clear:hover {
  color: var(--primary-red);
}

.calc-search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 6px;
  background: #0e131d;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  max-height: 280px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8);
  display: none;
}

.calc-search-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.calc-search-item:last-child {
  border-bottom: none;
}

.calc-search-item:hover, .calc-search-item.highlighted {
  background: rgba(255, 42, 42, 0.12);
}

.calc-search-car {
  font-weight: 600;
  color: #ffffff;
  font-size: 0.9rem;
}

.calc-search-car .brand-tag {
  color: var(--primary-red);
  margin-right: 0.4rem;
}

.calc-search-gains {
  display: flex;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.gain-badge-hp {
  background: rgba(255, 42, 42, 0.2);
  color: #ff7575;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
}

.gain-badge-nm {
  background: rgba(0, 210, 255, 0.2);
  color: #38bdf8;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
}

.or-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.or-divider::before, .or-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-subtle);
}

.or-divider span {
  padding: 0 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-white);
}

.form-select {
  background: #080b10;
  border: 1px solid var(--border-light);
  color: var(--text-white);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.form-select:focus {
  border-color: var(--primary-red);
  box-shadow: 0 0 10px rgba(255, 42, 42, 0.25);
}

.form-select:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Calculator Initial Prompt Box */
.calc-prompt-box {
  padding: 3.5rem 2rem;
  background: rgba(11, 15, 22, 0.7);
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.85rem;
}

.prompt-icon {
  font-size: 2.6rem;
  animation: floatIcon 2.4s ease-in-out infinite;
}

@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.prompt-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
}

.prompt-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.5;
}

.prompt-desc strong {
  color: #00d2ff;
}

/* Calculator Results Box */
.calc-results-wrap {
  padding: 2.25rem;
  background: #0b0f16;
}

.calc-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.25rem;
}

.vehicle-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
}

.tune-stage-badge {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-red);
  background: rgba(255, 42, 42, 0.12);
  border: 1px solid var(--border-red);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.15fr;
  gap: 1.5rem;
}

.result-metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.rm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.rm-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
}

.rm-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--primary-red);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
}

.rm-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.rm-val-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.tuned-row {
  font-size: 1.15rem;
}

.rm-progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
  margin: 0.25rem 0;
}

.bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.bar-orig {
  background: var(--text-dim);
  z-index: 1;
}

.bar-tuned {
  background: linear-gradient(90deg, #ff5757, var(--primary-red));
  z-index: 2;
}

.torque-card .bar-tuned {
  background: linear-gradient(90deg, #38bdf8, var(--accent-cyan));
}

.badge-green {
  background: #10b981;
}

.fuel-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ecu-type-tag {
  display: none !important;
}

.calc-action-bar {
  margin-top: 2rem;
  background: rgba(37, 211, 102, 0.06);
  border: 1px solid rgba(37, 211, 102, 0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.action-info {
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
}

/* Services Grid */
.services-section {
  padding: 5.5rem 0;
  background: var(--bg-dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--primary-red);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.service-icon-box {
  width: 48px;
  height: 48px;
  background: rgba(255, 42, 42, 0.1);
  border: 1px solid rgba(255, 42, 42, 0.25);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.service-name {
  font-size: 1.25rem;
  margin-bottom: 0.65rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.service-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.service-points li {
  font-size: 0.85rem;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-points li::before {
  content: "•";
  color: var(--primary-red);
  font-weight: bold;
}

.service-card-action {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.service-link {
  color: var(--primary-red);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.service-link:hover {
  color: #ffffff;
  transform: translateX(4px);
}

/* Equipment Section */
.equipment-section {
  padding: 4.5rem 0;
  background: #040609;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.equipment-logos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.equip-badge {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.35rem 1rem;
  text-align: center;
  transition: var(--transition-fast);
}

.equip-badge:hover {
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.eb-title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.eb-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Workflow Section */
.workflow-section {
  padding: 5.5rem 0;
  background: var(--bg-darkest);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.wf-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  transition: var(--transition-fast);
}

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

.wf-num {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--primary-red);
  margin-bottom: 0.75rem;
  line-height: 1;
}

.wf-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.wf-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Why Us Section */
.why-us-section {
  padding: 5.5rem 0;
  background: var(--bg-dark);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-fast);
}

.why-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.w-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.w-title {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
}

.w-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* R&D Telemetry Section (Cleanly bridges Claude startup & customer confidence) */
.arge-section {
  padding: 4rem 0 5.5rem;
}

.arge-box {
  background: linear-gradient(135deg, rgba(16, 21, 32, 0.95), rgba(10, 14, 22, 0.98));
  border: 1px solid var(--border-red);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.arge-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 2.5rem;
}

.arge-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.af-item {
  display: flex;
  gap: 0.85rem;
  background: rgba(0, 0, 0, 0.35);
  padding: 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

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

.af-item strong {
  display: block;
  font-size: 0.95rem;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.af-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* FAQ Accordion */
.faq-section {
  padding: 5.5rem 0;
  background: var(--bg-darkest);
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-item.active {
  border-color: rgba(255, 42, 42, 0.35);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 1.25rem 1.5rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
}

.faq-arrow {
  font-size: 1.4rem;
  line-height: 1;
  color: var(--primary-red);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Contact & Workshop Section */
.contact-section {
  padding: 5.5rem 0;
  background: var(--bg-dark);
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.contact-info-col {
  padding: 3rem;
}

.contact-heading {
  font-size: 2.1rem;
  margin-bottom: 0.85rem;
  line-height: 1.2;
}

.contact-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.c-item {
  display: flex;
  gap: 1rem;
}

.c-icon {
  font-size: 1.4rem;
}

.c-item strong {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.c-item p, .c-item a {
  font-size: 1rem;
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
}

.contact-cta-col {
  background: #06090e;
  padding: 3rem;
  display: flex;
  align-items: center;
}

.cta-box-inner {
  width: 100%;
  text-align: center;
}

.cta-box-title {
  font-size: 1.45rem;
  margin-bottom: 0.5rem;
}

.cta-box-p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

/* Landing Page Specific Header / Styles */
.landing-hero {
  padding: 4.5rem 0 3rem;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, rgba(255, 42, 42, 0.07) 0%, transparent 70%);
}

.landing-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.landing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}

/* Floating WhatsApp Button */
.floating-wa-btn {
  position: fixed;
  bottom: 85px; /* Above mobile sticky bar */
  right: 20px;
  z-index: 999;
  background: #25D366;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
  text-decoration: none;
  transition: transform 0.2s ease;
}

@media (min-width: 769px) {
  .floating-wa-btn {
    bottom: 25px;
    right: 25px;
  }
}

.floating-wa-btn:hover {
  transform: scale(1.08);
}

.wa-icon-svg {
  width: 32px;
  height: 32px;
  fill: #ffffff;
}

/* Mobile Sticky Bottom CTA Bar */
.mobile-sticky-bar,
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: rgba(8, 11, 18, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-light);
  z-index: 998;
  padding: 0 0.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .mobile-sticky-bar {
    display: flex;
  }
}

.sticky-btn {
  flex: 1;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.sticky-call {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border: 1px solid var(--border-light);
}

.sticky-wa {
  background: #25D366;
  color: #ffffff;
}

.sticky-calc {
  background: var(--primary-red);
  color: #ffffff;
}

.sticky-map {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  border: 1px solid rgba(14, 165, 233, 0.4);
}

/* Footer */
.site-footer {
  background: #030407;
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0 2rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  max-width: 380px;
}

.footer-motto {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 0.85rem;
}

.footer-links-group {
  display: flex;
  gap: 3.5rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.col-title {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.footer-col a, .footer-col span {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .form-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .results-grid {
    grid-template-columns: 1fr;
  }
  .contact-card {
    grid-template-columns: 1fr;
  }
  .arge-features {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 74px;
    left: 0;
    width: 100%;
    background: #0a0e16;
    border-bottom: 1px solid var(--border-light);
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8);
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-description {
    font-size: 1rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn {
    width: 100%;
  }
  .calc-action-bar {
    flex-direction: column;
    text-align: center;
  }
  .calc-action-bar .btn {
    width: 100%;
  }
  .footer-top {
    flex-direction: column;
  }
  .footer-links-group {
    flex-wrap: wrap;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .top-bar {
    display: none;
  }
}