/* ═══════════════════════════════════════════════════════════
   SignalTrail Radio — premium black / navy / electric blue
   ═══════════════════════════════════════════════════════════ */

:root {
  --black: #05070d;
  --navy-950: #070b14;
  --navy-900: #0a1220;
  --navy-800: #101a2c;
  --navy-700: #172438;
  --electric: #1e6bff;
  --electric-bright: #3d8bff;
  --electric-soft: #6eb6ff;
  --cyan: #4ecbff;
  --text: #ffffff;
  --text-muted: #b4c2d6;
  --text-dim: #7a8ba3;
  --border: rgba(61, 139, 255, 0.16);
  --border-strong: rgba(61, 139, 255, 0.4);
  --success: #3dd68c;
  --warning: #f0c14b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Figtree", "Segoe UI", sans-serif;
  --header-h: 76px;
  --max: 1140px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--black);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--electric-soft); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--cyan); }
:focus-visible {
  outline: 2px solid var(--electric-bright);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--electric);
  color: #fff;
  font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* ── Markers ── */
.placeholder-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--warning);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 0.35rem;
}
.placeholder-text {
  color: var(--warning);
  font-style: italic;
}
.notice-banner {
  background: rgba(30, 107, 255, 0.1);
  border-bottom: 1px solid var(--border);
  padding: 0.55rem 0;
  font-size: 0.84rem;
  color: var(--text-muted);
  text-align: center;
}
.notice-banner strong { color: var(--electric-soft); font-weight: 600; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(5, 7, 13, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, var(--max));
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.brand:hover { color: #fff; }
.brand__mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand__text small {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--electric-soft);
  text-transform: uppercase;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 0.1rem;
}
.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(30, 107, 255, 0.14);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.nav-toggle[aria-expanded="true"] {
  border-color: var(--electric-bright);
  background: rgba(30, 107, 255, 0.16);
}

.mobile-nav {
  display: none;
  border-bottom: 1px solid var(--border);
  background: var(--navy-900);
  padding: 0.75rem 1rem 1.25rem;
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}
.mobile-nav a {
  display: block;
  padding: 0.8rem 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 960px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--primary {
  background: linear-gradient(135deg, var(--electric-bright), var(--electric));
  color: #fff;
  box-shadow: 0 10px 30px rgba(30, 107, 255, 0.4);
}
.btn--primary:hover { color: #fff; box-shadow: 0 14px 36px rgba(30, 107, 255, 0.5); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn--ghost:hover { background: rgba(30, 107, 255, 0.12); color: var(--text); }
.btn--sm { min-height: 40px; padding: 0.45rem 1.05rem; font-size: 0.88rem; }
.btn--block { width: 100%; }
.btn svg { flex-shrink: 0; }

.phone-cta[hidden],
.phone-cta.is-inactive {
  display: none !important;
}
.phone-cta--floating {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 90;
  box-shadow: var(--shadow);
}
@media (min-width: 900px) {
  .phone-cta--floating { right: 1.5rem; bottom: 1.5rem; }
}

/* ── Hero (full-bleed cinematic) ── */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--black);
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  transform: scale(1.04);
  animation: hero-kenburns 22s var(--ease) infinite alternate;
}
.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 7, 13, 0.92) 0%, rgba(5, 7, 13, 0.72) 42%, rgba(5, 7, 13, 0.35) 100%),
    linear-gradient(180deg, rgba(5, 7, 13, 0.35) 0%, rgba(5, 7, 13, 0.88) 100%);
  z-index: 1;
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding: 5rem 0 4.5rem;
  max-width: 640px;
}
.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.9rem, 9vw, 4.8rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 0.92;
  margin: 0 0 1.1rem;
  color: #fff;
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.55);
  animation: fade-up 0.85s var(--ease) both;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.2vw, 2.55rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.12;
  margin: 0 0 1rem;
  color: #fff;
  animation: fade-up 0.85s var(--ease) 0.08s both;
}
.hero__lede {
  font-size: 1.12rem;
  color: var(--text-muted);
  margin: 0 0 1.75rem;
  max-width: 34em;
  animation: fade-up 0.85s var(--ease) 0.16s both;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: fade-up 0.85s var(--ease) 0.24s both;
}
@keyframes hero-kenburns {
  from { transform: scale(1.04); }
  to { transform: scale(1.1); }
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 700px) {
  .hero { min-height: auto; }
  .hero__inner { padding: 3.5rem 0 3rem; }
  .hero__shade {
    background:
      linear-gradient(180deg, rgba(5, 7, 13, 0.45) 0%, rgba(5, 7, 13, 0.92) 55%, #05070d 100%);
  }
}

/* ── Sections ── */
.section {
  padding: 4.75rem 0;
}
.section--alt {
  background: linear-gradient(180deg, var(--navy-900), var(--black));
  border-block: 1px solid var(--border);
}
.section--visual {
  position: relative;
  overflow: hidden;
}
.section__eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--electric-soft);
  margin: 0 0 0.55rem;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 4vw, 2.85rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.08;
  margin: 0 0 0.75rem;
}
.section__lead {
  color: var(--text-muted);
  max-width: 40em;
  margin: 0 0 2.5rem;
}

/* Premium service cards */
.card-grid {
  display: grid;
  gap: 1.15rem;
}
@media (min-width: 700px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
}
.service-card {
  padding: 1.6rem 1.4rem;
  background: linear-gradient(165deg, rgba(23, 36, 56, 0.95), rgba(10, 18, 32, 0.98));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 18px 40px rgba(30, 107, 255, 0.15);
}
.service-card__icon {
  width: 42px;
  height: 42px;
  margin-bottom: 1rem;
  color: var(--electric-bright);
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.55rem;
}
.service-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.97rem;
}

/* Steps */
.steps {
  display: grid;
  gap: 1rem;
}
@media (min-width: 800px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}
.step {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(16, 26, 44, 0.7);
}
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 0.9rem;
  border-radius: 50%;
  background: rgba(30, 107, 255, 0.18);
  color: var(--electric-soft);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}
.step p { margin: 0; color: var(--text-muted); font-size: 0.96rem; }

/* Visual split */
.visual-split {
  display: grid;
  gap: 2rem;
  align-items: center;
}
@media (min-width: 860px) {
  .visual-split { grid-template-columns: 1.05fr 0.95fr; }
}
.visual-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 280px;
  box-shadow: var(--shadow);
}
.visual-frame img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}
.visual-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5, 7, 13, 0.55));
  pointer-events: none;
}

/* Plans */
.plans-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 800px) {
  .plans-grid { grid-template-columns: repeat(3, 1fr); }
}
.plan {
  position: relative;
  padding: 1.85rem 1.5rem;
  background: linear-gradient(180deg, var(--navy-800), var(--navy-950));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.plan:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}
.plan--featured {
  border-color: var(--electric-bright);
  box-shadow: 0 0 0 1px rgba(30, 107, 255, 0.35), var(--shadow);
}
.plan__label {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--electric-soft);
}
.plan h3 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  margin: 0;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.plan__price {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-muted);
}
.plan ul {
  margin: 0;
  padding: 0 0 0 1.1rem;
  color: var(--text-muted);
  flex: 1;
}
.plan li { margin-bottom: 0.45rem; }
.plan__note {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* FAQ */
.faq-list { border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.faq-item button span.icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--electric-soft);
  transition: transform 0.25s var(--ease);
}
.faq-item button[aria-expanded="true"] span.icon { transform: rotate(45deg); }
.faq-panel {
  display: none;
  padding: 0 0 1.25rem;
  color: var(--text-muted);
}
.faq-panel.is-open { display: block; }

/* Page hero */
.page-hero {
  position: relative;
  padding: 4rem 0 2.5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--navy-900);
}
.page-hero--image {
  min-height: 280px;
  display: flex;
  align-items: flex-end;
}
.page-hero__media {
  position: absolute;
  inset: 0;
}
.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.page-hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 7, 13, 0.92), rgba(5, 7, 13, 0.55));
}
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.page-hero p {
  margin: 0;
  color: var(--text-muted);
  max-width: 40em;
}

/* Prose */
.prose { max-width: 42rem; }
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 2rem 0 0.75rem;
}
.prose p, .prose li { color: var(--text-muted); }
.prose ul { padding-left: 1.2rem; }

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 800px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
.contact-block {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--navy-900);
}
.contact-block h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.contact-block dl { margin: 0; }
.contact-block dt {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--electric-soft);
  margin-top: 1rem;
}
.contact-block dd {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
}
.contact-form {
  display: grid;
  gap: 1rem;
}
.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  min-height: 48px;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--navy-800);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form .form-note {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0;
}
.form-status {
  display: none;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(61, 214, 140, 0.12);
  border: 1px solid rgba(61, 214, 140, 0.35);
  color: var(--success);
  font-size: 0.95rem;
}
.form-status.is-visible { display: block; }

/* About */
.about-split {
  display: grid;
  gap: 2rem;
}
@media (min-width: 800px) {
  .about-split { grid-template-columns: 1.2fr 0.8fr; align-items: start; }
}
.stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-list li {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--navy-800);
}
.stat-list li:last-child { border-bottom: none; }
.stat-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  color: var(--electric-soft);
}
.stat-list span { color: var(--text-muted); font-size: 0.9rem; }

/* Footer */
.site-footer {
  padding: 3.25rem 0 2rem;
  border-top: 1px solid var(--border);
  background: var(--navy-950);
  margin-top: 0;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 700px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
}
.site-footer h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.85rem;
  color: var(--text);
}
.site-footer p, .site-footer li { color: var(--text-dim); font-size: 0.92rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.45rem; }
.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--cyan); }
.footer-legal {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-dim);
}
.footer-legal p { margin: 0 0 0.75rem; }

/* CTA band */
.cta-band {
  position: relative;
  padding: 4rem 0;
  text-align: center;
  overflow: hidden;
  border-block: 1px solid var(--border);
  background: var(--navy-800);
}
.cta-band--image .cta-band__media {
  position: absolute;
  inset: 0;
}
.cta-band--image .cta-band__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.cta-band--image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 13, 0.75), rgba(7, 11, 20, 0.92));
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.cta-band p {
  color: var(--text-muted);
  margin: 0 auto 1.5rem;
  max-width: 34em;
}
.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}