/* ===== Tokens =====
   Primary brand colors (pine/cream/black) come from the existing
   logo/ assets — the real, established Bilec Global identity.
   Amber accent + type system are adapted from the site brief. */
:root {
  --pine: #123a2e;
  --pine-deep: #0a2820;
  --amber: #c97a2b;
  --amber-deep: #9e5e1e;
  --paper: #ecEAE4;
  --surface: #ffffff;
  --surface-muted: #f5f4f0;
  --text-muted: #55524a;
  --text-muted-on-dark: #bfbcb2;
  --border: #dad5c8;

  --font-display: "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);
  --text-3xl: clamp(2.5rem, 1.7rem + 3.5vw, 4rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  --section-pad: clamp(3.5rem, 2.8rem + 3vw, 6rem);
  --container: 1180px;
  --border-rule: 1px solid var(--border);
  --radius: 6px;
}

/* ===== Reset ===== */
*, *::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;
    scroll-behavior: auto !important;
  }
}
body {
  margin: 0;
  background: var(--surface);
  color: var(--pine);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 1rem + 2vw, 2.5rem);
}

.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;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }

.lede {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 46ch;
}

/* ===== Glyph ===== */
.glyph {
  width: 32px;
  height: 32px;
  color: var(--pine);
}
.glyph--on-dark { color: var(--paper); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.9em 1.6em;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--amber);
  color: var(--pine-deep);
}
.btn-primary:hover {
  background: var(--amber-deep);
  transform: translateY(-1px);
}
.btn-ghost {
  border-color: var(--border);
  color: var(--pine);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--pine); }
.btn-ghost--on-dark {
  border-color: rgba(236, 234, 228, 0.35);
  color: var(--paper);
}
.btn-ghost--on-dark:hover { border-color: var(--paper); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: var(--border-rule);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
  gap: var(--space-6);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  color: var(--pine);
  line-height: 1;
}
.brand-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-top: 2px;
}
.site-footer .brand-tag { color: var(--text-muted-on-dark); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a {
  text-decoration: none;
  padding-block: var(--space-1);
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav-links a:hover { border-color: var(--amber); }
.nav-links-cta { display: none; }
.nav-actions { display: flex; align-items: center; gap: var(--space-4); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: var(--text-sm);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--paper);
  background: var(--pine-deep);
}
.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 65%;
  z-index: 0;
}
.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, rgba(7, 20, 16, 0.82) 0%, rgba(7, 20, 16, 0.55) 32%, rgba(7, 20, 16, 0.12) 58%, transparent 72%),
    linear-gradient(0deg, rgba(7, 20, 16, 0.3), transparent 45%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  min-height: min(88vh, 800px);
  max-width: var(--container);
  margin-inline: auto;
  padding-block: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  padding-inline: clamp(1.25rem, 1rem + 2vw, 2.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-12);
}
.hero-word { display: flex; flex-direction: column; gap: 0.5rem; }
.hero-word-main {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.5rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--surface);
}
.hero-word-strong { font-weight: 800; }
.hero-word-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted-on-dark);
}
.hero-copy { max-width: 620px; }
.hero-copy h1 {
  color: var(--surface);
  font-weight: 600;
  margin-bottom: var(--space-6);
}
.hero-copy h1 .accent { color: var(--amber); }
.hero-copy .lede { color: var(--text-muted-on-dark); max-width: 54ch; margin-bottom: var(--space-8); }
.hero-actions { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }

@media (max-width: 720px) {
  .hero-inner { min-height: min(94vh, 720px); }
  .hero-photo { object-position: 62% 70%; }
}

/* ===== Sections ===== */
section { padding-block: var(--section-pad); }
.section-head { max-width: 60ch; margin-bottom: var(--space-12); }
.section-head h2 { margin-top: var(--space-3); }
.bg-muted { background: var(--surface-muted); }
.bg-paper { background: var(--paper); }
.bg-pine { background: var(--pine); color: var(--paper); }
.bg-pine .eyebrow { color: var(--amber); }
.bg-pine h2, .bg-pine h3 { color: var(--surface); }
.bg-pine .lede { color: var(--text-muted-on-dark); }

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.about-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: var(--border-rule);
  position: relative;
}
.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  filter: saturate(0.85) contrast(1.02);
}
.about-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(18, 58, 46, 0.35), rgba(18, 58, 46, 0.05) 55%);
  mix-blend-mode: multiply;
}
.about-body p + p { margin-top: var(--space-4); }
.about-body p { color: var(--text-muted); max-width: 56ch; }

/* ===== Industries ===== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.industry-card {
  border: var(--border-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.industry-card:hover { border-color: var(--pine); transform: translateY(-2px); }
.industry-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--pine); }
.industry-media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.05) contrast(1.03);
  transition: transform 0.4s ease;
}
.industry-card:hover .industry-media img { transform: scale(1.04); }
.industry-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7, 20, 16, 0) 60%, rgba(7, 20, 16, 0.28));
  z-index: 2;
}
.industry-body { padding: var(--space-6); }
.industry-body h3 { margin-bottom: var(--space-2); }
.industry-body p { color: var(--text-muted); font-size: var(--text-sm); }

/* ===== Why grid ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.why-item h3 {
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 2px solid var(--amber);
}
.why-item p { color: var(--text-muted); font-size: var(--text-sm); }
.bg-pine .why-item p { color: var(--text-muted-on-dark); }

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-16);
  align-items: start;
}
.contact-info dl { margin-top: var(--space-8); border-top: 1px solid rgba(236, 234, 228, 0.2); }
.contact-info .row {
  display: grid;
  grid-template-columns: 9ch 1fr;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid rgba(236, 234, 228, 0.2);
}
.contact-info dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--amber);
}
.contact-info dd { margin: 0; color: var(--surface); }
.contact-info dd a { text-decoration: none; }
.contact-info dd a:hover { text-decoration: underline; }
.placeholder-note {
  margin-top: var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted-on-dark);
  border: 1px dashed rgba(236, 234, 228, 0.3);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.form-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--space-8);
  color: var(--pine);
}
.form-field { margin-bottom: var(--space-5); }
.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.form-field .required { color: var(--amber-deep); }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.8em 0.9em;
  font-size: var(--text-base);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--pine);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(201, 122, 43, 0.15);
}
.form-field textarea { resize: vertical; min-height: 7rem; }
.form-field input[type="file"] {
  padding: 0.6em 0.9em;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.form-field input[type="file"]::file-selector-button {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pine);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5em 0.9em;
  margin-right: var(--space-3);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.form-field input[type="file"]:hover::file-selector-button {
  border-color: var(--pine);
  background: var(--surface);
}
.form-hint {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.form-field.invalid input,
.form-field.invalid select,
.form-field.invalid textarea { border-color: #b3392c; }
.form-error {
  display: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: #b3392c;
  margin-top: var(--space-1);
}
.form-field.invalid .form-error { display: block; }
.form-success {
  display: none;
  padding: var(--space-6);
  border: 1px solid var(--amber);
  background: rgba(201, 122, 43, 0.08);
  border-radius: var(--radius);
  font-size: var(--text-sm);
}
.form-success.visible { display: block; }
.form-submit-error {
  display: none;
  padding: var(--space-6);
  border: 1px solid #b3392c;
  background: rgba(179, 57, 44, 0.08);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  margin-top: var(--space-4);
}
.form-submit-error.visible { display: block; }
form.submitted .form-fields { display: none; }

/* ===== Footer ===== */
.site-footer {
  background: var(--pine-deep);
  color: var(--text-muted-on-dark);
  padding-block: var(--space-16) var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(236, 234, 228, 0.15);
}
.footer-brand p { margin-top: var(--space-4); max-width: 34ch; }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: var(--space-4);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { text-decoration: none; color: var(--text-muted-on-dark); }
.footer-col a:hover { color: var(--paper); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  flex-wrap: wrap;
}

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-actions .btn-ghost,
  .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: inline-flex; }
  body.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    padding: var(--space-6) clamp(1.25rem, 1rem + 2vw, 2.5rem);
    border-bottom: var(--border-rule);
    font-size: var(--text-base);
  }
  .nav-links-cta { display: inline-flex; margin-top: var(--space-2); }
  .industry-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-bottom { flex-direction: column; }
  .contact-info .row { grid-template-columns: 1fr; }
}