/* SineTamer — static rebuild
   Palette: near-black navy base, amber (caution/lightning) accent,
   electric blue (technical) accent — approximated from live-site
   imagery, not extracted hex values. Swap the variables below once
   exact brand hex codes are confirmed. */

:root {
  --ink: #0a0f14;
  --ink-soft: #0d141b;
  --panel: #111a23;
  --panel-border: #223140;
  --spark: #ffb400;
  --spark-dim: #b9860a;
  --volt: #2fb8ff;
  --paper: #eef1f4;
  --logo-tile: #0a0f14;
  --steel: #8695a2;
  --steel-dark: #5c6b78;

  --font-head: "Archivo", sans-serif;
  --font-body: "Inter", sans-serif;

  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--volt); text-decoration: none; }
a:hover { text-decoration: underline; }

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

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--spark);
  outline-offset: 3px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 15, 20, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--panel-border);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand img { height: 52px; width: auto; }

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--paper);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
}

.main-nav a:hover { color: var(--spark); text-decoration: none; }

.nav-cta {
  border: 1px solid var(--spark);
  padding: 8px 16px;
  border-radius: 2px;
  color: var(--spark) !important;
}

.nav-cta:hover { background: var(--spark); color: var(--ink) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 6px;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--paper);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(10,15,20,0.96) 15%, rgba(10,15,20,0.55) 48%, rgba(10,15,20,0.25) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.kicker {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--spark);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.3vw, 3.4rem);
  max-width: 20ch;
}

.hero-lede {
  max-width: 52ch;
  font-size: 1.1rem;
  color: var(--paper);
  opacity: 0.9;
  margin: 20px 0 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--spark);
  color: var(--ink);
}

.btn-primary:hover { background: #ffc433; }

.btn-ghost {
  border-color: var(--panel-border);
  color: var(--paper);
}

.btn-ghost:hover { border-color: var(--volt); color: var(--volt); }

/* ---------- Intro ---------- */

.intro {
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
  background: var(--ink-soft);
}

.intro-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 64px 24px;
}

.intro p {
  font-size: 1.05rem;
  color: var(--paper);
  opacity: 0.92;
}

.intro p + p { margin-top: 1.2em; }

/* ---------- Features ---------- */

.features {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 24px;
}

.section-title {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-bottom: 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--panel-border);
  border: 1px solid var(--panel-border);
}

.feature {
  background: var(--panel);
  padding: 34px 28px;
  border-left: 3px solid var(--volt);
}

.feature img { margin-bottom: 18px; }

.feature h3 {
  font-size: 1.05rem;
  margin: 0;
}

/* ---------- Standard statement ---------- */

.standard {
  text-align: center;
  padding: 90px 24px 100px;
  max-width: 720px;
  margin: 0 auto;
}

.standard-mark {
  margin: 0 auto 24px;
  opacity: 0.85;
}

.standard p {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: #fff;
  margin: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--panel-border);
  background: var(--ink-soft);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--steel);
}

.footer-contact a { color: var(--paper); }

.footer-social {
  display: flex;
  gap: 18px;
  font-size: 0.9rem;
}

.footer-distributor {
  width: 100%;
  margin: 20px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--panel-border);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--steel);
}

.footer-legal {
  width: 100%;
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--steel-dark);
}

.footer-legal a { color: var(--steel); }

/* ---------- Interior page hero (About / Products / Clients / Contact) ---------- */

.page-hero {
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
}

.page-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px 56px;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  margin: 0;
}

/* ---------- Problem / body copy sections ---------- */

.problem {
  max-width: 860px;
  margin: 0 auto;
  padding: 72px 24px;
}

.problem h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  margin-top: 2.2em;
}

.problem h2:first-child { margin-top: 0; }

.problem p {
  color: var(--paper);
  opacity: 0.92;
  font-size: 1.03rem;
}

.problem p + p { margin-top: 1.2em; }

/* ---------- Values ---------- */

.values {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 90px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--panel-border);
  border: 1px solid var(--panel-border);
}

.value {
  background: var(--panel);
  padding: 30px 26px;
  border-top: 3px solid var(--spark);
}

.value h3 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.value p {
  font-size: 0.92rem;
  color: var(--steel);
  margin: 0;
}

.page-hero-lede {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--steel);
  font-size: 1.02rem;
}

/* ---------- Product families ---------- */

.product-family {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
  border-top: 1px solid var(--panel-border);
}

.product-family.reverse { direction: rtl; }
.product-family.reverse > * { direction: ltr; }

.product-media {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 20px;
  position: sticky;
  top: 96px;
}

.product-media img { width: 100%; height: auto; }

.product-media-pair {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.product-specs h2 {
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  margin-bottom: 20px;
}

.product-specs h3 {
  font-family: var(--font-head);
  font-size: 0.95rem;
  text-transform: none;
  color: var(--volt);
  margin: 1.6em 0 0.6em;
}

.product-specs h3:first-of-type { margin-top: 0; }

.spec-list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--paper);
  opacity: 0.9;
}

.spec-list li { margin-bottom: 0.5em; }

.spec-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 1.4em;
}

/* ---------- Tech topics video grid ---------- */

.tech-topics {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 24px 96px;
  border-top: 1px solid var(--panel-border);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 28px;
}

.video h3 {
  font-size: 0.98rem;
  margin-bottom: 10px;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--panel);
  border: 1px solid var(--panel-border);
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Clients ---------- */

.clients {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px 96px;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--panel-border);
  border: 1px solid var(--panel-border);
}

.client-logo {
  background: var(--logo-tile);
  aspect-ratio: 3 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

.client-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ---------- Contact ---------- */

.contact-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px 100px;
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 56px;
}

.contact-form {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 36px;
}

.form-row { margin-bottom: 20px; }

.form-row label {
  display: block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 8px;
  color: var(--steel);
}

.form-row input,
.form-row textarea {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--panel-border);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 14px;
  border-radius: 2px;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--volt);
}

.form-row-honeypot {
  display: none;
}

.contact-form .btn { border: none; cursor: pointer; }

.form-status {
  margin: 16px 0 0;
  font-size: 0.92rem;
}

.form-status[data-state="success"] { color: #5fd98a; }
.form-status[data-state="error"] { color: #ff8a7a; }

.contact-details h2 {
  font-size: 1.3rem;
  margin-bottom: 24px;
}

.contact-details dl { margin: 0; }

.contact-details dl > div {
  padding: 18px 0;
  border-top: 1px solid var(--panel-border);
}

.contact-details dl > div:first-child { border-top: none; }

.contact-details dt {
  font-family: var(--font-head);
  font-size: 0.82rem;
  color: var(--steel);
  margin-bottom: 4px;
}

.contact-details dd {
  margin: 0;
  font-size: 1.05rem;
  color: var(--paper);
}

/* ---------- FAQ (accordion) ---------- */

.faq {
  border-top: 1px solid var(--panel-border);
  background: var(--ink-soft);
}

.faq-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 90px;
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-left: 3px solid var(--volt);
}

.faq-item + .faq-item {
  margin-top: 12px;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 52px 20px 22px;
  position: relative;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  color: #fff;
  line-height: 1.4;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 18px;
  right: 22px;
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--spark);
  transition: transform 0.15s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  color: var(--spark);
}

.faq-item p {
  color: var(--paper);
  opacity: 0.92;
  font-size: 0.98rem;
  margin: 0;
  padding: 0 22px 22px;
}

/* ---------- Cookie consent banner ---------- */

#cookie-consent {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: var(--panel);
  border-top: 1px solid var(--panel-border);
  padding: 18px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
}

#cookie-consent p {
  margin: 0;
  color: var(--paper);
  opacity: 0.9;
  font-size: 0.88rem;
  max-width: 640px;
}

.cookie-consent-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.cookie-consent-actions .btn {
  padding: 10px 18px;
  font-size: 0.85rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .product-family, .product-family.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  .product-media { position: static; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .main-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--panel-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 0;
  }

  .main-nav ul.open { display: flex; }

  .main-nav li { width: 100%; }

  .main-nav a {
    display: block;
    padding: 14px 24px;
  }

  .nav-cta { margin: 8px 24px; display: inline-block; }

  .nav-toggle { display: flex; }

  .feature-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .spec-columns { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }

  .hero { min-height: auto; }

  .hero-content { padding: 64px 20px; }

  #cookie-consent {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .cookie-consent-actions {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}