/* =========================================================================
   styles.css
   Premium B2B landing page — plain CSS, mobile-first, no frameworks.
   Edit the CSS custom properties in :root to retheme the whole site.
   ========================================================================= */

:root {
  /* Colors — graphite + deep blue accent (premium, technical, trustworthy) */
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7f9;
  --color-text: #1f2937;       /* dark graphite */
  --color-text-muted: #5b6573;
  --color-border: #e2e6ea;
  --color-accent: #1d4ed8;     /* deep blue */
  --color-accent-dark: #1e3a8a;
  --color-accent-contrast: #ffffff;
  --color-success-bg: #ecfdf5;
  --color-success-text: #065f46;
  --color-error-bg: #fef2f2;
  --color-error-text: #991b1b;

  /* Layout */
  --max-width: 1200px;
  --radius: 8px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;

  /* Typography — system font stack, no web font requests (fast, no FOIT) */
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

/* If you ever add a web font, remember to set font-display: swap, e.g.:
   @font-face { font-family: "YourFont"; src: url(...) format("woff2"); font-display: swap; }
*/

* {
  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;
    scroll-behavior: auto !important;
  }
}

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

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

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

.skip-link {
  position: absolute;
  left: 0;
  top: -3rem;
  background: var(--color-accent);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 1000;
  transition: top 0.15s ease-in-out;
}
.skip-link:focus {
  top: 0;
}

section {
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
section:last-of-type {
  border-bottom: none;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  max-width: 760px;
  margin-bottom: var(--space-4);
}

.section-header h2 {
  margin-bottom: var(--space-1);
}

.section-lede {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin-block: 0 1rem;
}

ul {
  padding-left: 1.25rem;
}

/* ---------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
  line-height: 1.2;
}
.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-text);
}

.btn-block {
  width: 100%;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: 0.85rem;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.logo span {
  color: var(--color-accent);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem 0.65rem;
  cursor: pointer;
}
.nav-toggle .bars {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  position: relative;
}
.nav-toggle .bars::before,
.nav-toggle .bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--color-text);
}
.nav-toggle .bars::before { top: -6px; }
.nav-toggle .bars::after { top: 6px; }

.main-nav {
  position: absolute;
  inset-inline: 0;
  top: 100%;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: none;
  flex-direction: column;
  padding: var(--space-2);
}
.main-nav.is-open {
  display: flex;
}
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.main-nav a:not(.btn) {
  display: block;
  padding: 0.65rem 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  border-radius: var(--radius);
  font-weight: 500;
}
.main-nav a:not(.btn):hover {
  background: var(--color-bg-alt);
  color: var(--color-accent);
}
.main-nav .nav-cta {
  margin-top: var(--space-2);
}

@media (min-width: 880px) {
  .nav-toggle {
    display: none;
  }
  .main-nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    border-bottom: none;
    background: transparent;
    padding: 0;
    width: auto;
  }
  .main-nav ul {
    flex-direction: row;
    gap: 0.25rem;
  }
  .main-nav .nav-cta {
    margin-top: 0;
    margin-left: var(--space-2);
  }
}

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

.hero {
  padding-block: var(--space-5) var(--space-6);
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero-grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-5);
  }
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.hero h1 {
  margin: 0 0 var(--space-2);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text);
  max-width: 56ch;
}

.hero-support {
  color: var(--color-text-muted);
  max-width: 60ch;
}

.trust-line {
  margin-top: var(--space-3);
  font-size: 0.92rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
}

.hero-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}
.hero-media img {
  width: 100%;
  height: auto;
}
.media-caption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 0.6rem 0.8rem;
  margin: 0;
  border-top: 1px solid var(--color-border);
}

/* ---------------------------------------------------------------------
   Trust badges
   --------------------------------------------------------------------- */

.badges {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
  list-style: none;
  margin: 0;
  padding: 0;
}
@media (min-width: 700px) {
  .badges {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .badges {
    grid-template-columns: repeat(4, 1fr);
  }
}
.badge {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: var(--space-2);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
}
.badge .badge-icon {
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

/* ---------------------------------------------------------------------
   Card grids
   --------------------------------------------------------------------- */

.card-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .card-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1000px) {
  .card-grid--4 { grid-template-columns: repeat(4, 1fr); }
  .card-grid--5 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  height: 100%;
}
.card h3 {
  margin-top: 0;
}
.card p:last-child {
  margin-bottom: 0;
}

.section-alt .card {
  background: var(--color-bg);
}

/* ---------------------------------------------------------------------
   Product cards
   --------------------------------------------------------------------- */

.product-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}
.product-card img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}
.product-card__body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.product-type {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
}
.spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  display: grid;
  gap: 0.25rem;
}
.spec-list strong {
  color: var(--color-text);
  font-weight: 600;
}
.product-card .btn {
  margin-top: auto;
}

/* ---------------------------------------------------------------------
   Specifications table
   --------------------------------------------------------------------- */

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 0.95rem;
}
.spec-table caption {
  text-align: left;
  padding: var(--space-2);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.75rem var(--space-2);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.spec-table thead th {
  background: var(--color-bg-alt);
  font-weight: 700;
  white-space: nowrap;
}
.spec-table tbody th {
  font-weight: 600;
  white-space: nowrap;
  background: var(--color-bg-alt);
}
.spec-table tbody tr:last-child td,
.spec-table tbody tr:last-child th {
  border-bottom: none;
}

/* ---------------------------------------------------------------------
   Video section
   --------------------------------------------------------------------- */

.video-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-alt);
}
.video-frame video {
  width: 100%;
  height: auto;
  display: block;
  background: #000;
}
.video-fallback {
  padding: var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------------
   Checklists
   --------------------------------------------------------------------- */

.check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}
.check-list li::before {
  content: "✓";
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8rem;
  margin-top: 0.1rem;
}

/* ---------------------------------------------------------------------
   Logistics section media
   --------------------------------------------------------------------- */

.media-pair {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
  margin-top: var(--space-3);
}
@media (min-width: 700px) {
  .media-pair {
    grid-template-columns: repeat(2, 1fr);
  }
}
.media-pair figure {
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}
.media-pair figcaption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 0.6rem 0.8rem;
}

/* ---------------------------------------------------------------------
   Process steps
   --------------------------------------------------------------------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 700px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}
.steps li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  background: var(--color-bg);
  counter-increment: step;
}
.steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.steps h3 {
  margin: 0;
}

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

.contact-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .contact-grid {
    grid-template-columns: 0.85fr 1.15fr;
  }
}

.contact-cards {
  display: grid;
  gap: var(--space-2);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-bg);
}
.contact-card:hover {
  border-color: var(--color-accent);
}
.contact-card .contact-icon {
  flex: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-accent);
}
.contact-card strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ---------------------------------------------------------------------
   Form
   --------------------------------------------------------------------- */

.form-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.form-grid {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .form-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form-field label {
  font-weight: 600;
  font-size: 0.92rem;
}
.form-field .optional {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}
.form-field input,
.form-field select,
.form-field textarea {
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  width: 100%;
}
.form-field textarea {
  min-height: 7.5rem;
  resize: vertical;
}
.form-field input:invalid:not(:placeholder-shown),
.form-field textarea:invalid:not(:placeholder-shown) {
  border-color: var(--color-error-text);
}
.field-error {
  color: var(--color-error-text);
  font-size: 0.85rem;
  min-height: 1.1em;
}

/* Honeypot field — hidden from real users, left in the tab/DOM flow for bots */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius);
  font-weight: 600;
  display: none;
}
.form-status.is-visible {
  display: block;
}
.form-status.is-success {
  background: var(--color-success-bg);
  color: var(--color-success-text);
  border: 1px solid var(--color-success-text);
}
.form-status.is-error {
  background: var(--color-error-bg);
  color: var(--color-error-text);
  border: 1px solid var(--color-error-text);
}

.privacy-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.turnstile-widget {
  margin-block: var(--space-2);
}

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

.site-footer {
  background: var(--color-bg-alt);
  padding-block: var(--space-5);
  font-size: 0.92rem;
  color: var(--color-text-muted);
}
.footer-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.footer-grid h2,
.footer-grid h3 {
  color: var(--color-text);
  font-size: 1rem;
  margin-top: 0;
}
.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}
.footer-grid a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer-grid a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}
.footer-bottom {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
}

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

.consent-banner {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 900;
  background: var(--color-text);
  color: #fff;
  padding: var(--space-2);
  display: none;
}
.consent-banner.is-visible {
  display: block;
}
.consent-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  justify-content: space-between;
}
.consent-text {
  flex: 1 1 320px;
  font-size: 0.88rem;
  margin: 0;
  color: #f1f5f9;
}
.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.consent-actions .btn {
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
}
.consent-actions .btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.consent-actions .btn-ghost:hover {
  border-color: #fff;
}

/* ---------------------------------------------------------------------
   Misc utility
   --------------------------------------------------------------------- */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.muted { color: var(--color-text-muted); }

.lazy-fade {
  background: var(--color-bg-alt);
}