/* ==========================================================================
   BeamsConsult — Global Stylesheet
   ========================================================================== */

:root {
  --navy: #062E67;          /* deep navy — primary */
  --navy-dark: #041F47;
  --navy-light: #0E4C8A;    /* royal blue — secondary */
  --steel-100: #E9EEF3;     /* soft light gray — background */
  --steel-200: #D6DFE9;
  --steel-400: #93A3B8;
  --steel-600: #52657D;
  --accent: #33A9E0;        /* bright cyan — accent */
  --accent-dark: #1E8FC7;
  --highlight: #79CFEF;     /* light cyan — highlight */
  --teal: #0E4C8A;
  --white: #FFFFFF;
  --text: #23303B;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(15, 42, 67, 0.10);
  --shadow-lg: 0 10px 40px rgba(15, 42, 67, 0.16);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.6em;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }

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

.section { padding: 72px 0; }
.section--alt { background: var(--steel-100); }
.section--navy { background: var(--navy); color: var(--steel-200); }
.section--navy h2, .section--navy h3 { color: var(--white); }

.section-intro {
  max-width: 720px;
  margin-bottom: 40px;
}
.section-intro .kicker {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

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

.btn--outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.55); }
.btn--outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

.btn--outline-dark { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn--outline-dark:hover { background: var(--navy); color: var(--white); }

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--steel-200);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.logo:hover { text-decoration: none; }
.logo span { color: var(--accent); }
.logo--img img { height: 46px; width: auto; }

.nav { display: flex; align-items: center; gap: 28px; }

.nav a {
  color: var(--navy);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); text-decoration: none; }

.nav .btn { padding: 10px 20px; }

/* Dropdown */
.dropdown { position: relative; }
.dropdown__toggle {
  background: none;
  border: none;
  font: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
}
.dropdown__toggle:hover { color: var(--accent); }
.dropdown__toggle .caret {
  border: solid currentColor;
  border-width: 0 2px 2px 0;
  padding: 3px;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s ease;
}
.dropdown[data-open="true"] .caret { transform: rotate(-135deg) translateY(-2px); }

.dropdown__menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  min-width: 300px;
  display: none;
  flex-direction: column;
}
.dropdown[data-open="true"] .dropdown__menu { display: flex; }
.dropdown__menu a {
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--navy);
  font-size: 0.92rem;
}
.dropdown__menu a:hover { background: var(--steel-100); color: var(--accent); }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--navy);
  margin: 5px 0;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  background:
    linear-gradient(120deg, rgba(4, 31, 71, 0.92) 0%, rgba(6, 46, 103, 0.82) 55%, rgba(14, 76, 138, 0.72) 100%),
    url("../images/hero-oil-gas-beams.webp") center / cover no-repeat;
  color: var(--steel-200);
  padding: 110px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -140px;
  width: 480px;
  height: 480px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
}
.hero::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 480px;
  height: 480px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 50%;
}
.hero h1 { color: var(--white); max-width: 760px; }
.hero p.lead {
  font-size: 1.15rem;
  max-width: 640px;
  color: rgba(255,255,255,0.82);
  margin-bottom: 32px;
}
.hero .btn + .btn { margin-left: 12px; }

.hero--page { padding: 80px 0 64px; }

.breadcrumb {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--white); }

/* --------------------------------------------------------------------------
   Cards & grids
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--steel-100);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.1rem; }
.card p { font-size: 0.93rem; color: var(--steel-600); flex-grow: 1; }
.card .card__link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
}
.card .card__link:hover { color: var(--accent-dark); text-decoration: none; }

a.card { color: inherit; text-decoration: none; }

/* Tighter cards when 4 per row */
.grid--4 .card { padding: 24px 20px; }
.grid--4 .card h3 { font-size: 1.02rem; }
.grid--4 .card p { font-size: 0.88rem; }
.grid--4 .card__icon { width: 42px; height: 42px; margin-bottom: 14px; }
.grid--4 .card__icon svg { width: 23px; height: 23px; }

/* Feature list (why us) */
.feature {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.feature__num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature h3 { margin-bottom: 6px; }
.feature p { color: var(--steel-600); font-size: 0.95rem; }

/* Industries strip */
.industries {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.industries span {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--steel-200);
  border-radius: 999px;
  padding: 9px 20px;
  font-size: 0.9rem;
}

/* Stats */
.stats { text-align: center; }
.stats .stat__value {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}
.stats .stat__label { color: var(--steel-600); font-size: 0.92rem; }

/* --------------------------------------------------------------------------
   Service page layout
   -------------------------------------------------------------------------- */
.service-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 56px;
  align-items: start;
}

.check-list { list-style: none; padding: 0; margin: 0 0 1.5em; }
.check-list li {
  padding-left: 34px;
  position: relative;
  margin-bottom: 12px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>') center / 14px no-repeat, linear-gradient(#000 0 0);
          mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>') center / 14px no-repeat, linear-gradient(#000 0 0);
  -webkit-mask-composite: destination-out;
          mask-composite: exclude;
  background: var(--accent);
}

.sidebar-box {
  background: var(--steel-100);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-box h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; }
.sidebar-box ul { list-style: none; padding: 0; margin: 0; }
.sidebar-box li { border-bottom: 1px solid var(--steel-200); }
.sidebar-box li:last-child { border-bottom: none; }
.sidebar-box li a {
  display: block;
  padding: 10px 0;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 500;
}
.sidebar-box li a:hover { color: var(--accent); text-decoration: none; }

.standards {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.standards span {
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
}

/* Methodology steps */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
.steps li {
  counter-increment: step;
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  padding: 20px 22px 20px 70px;
  position: relative;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 20px;
  font-weight: 800;
  color: var(--accent);
  font-size: 1.15rem;
}
.steps li strong { display: block; color: var(--navy); margin-bottom: 4px; }
.steps li span { color: var(--steel-600); font-size: 0.93rem; }

/* --------------------------------------------------------------------------
   Case studies
   -------------------------------------------------------------------------- */
.case-card {
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.case-card__band {
  height: 6px;
  background: linear-gradient(90deg, var(--highlight), var(--accent), var(--navy-light));
}

/* Partners */
.partner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  min-height: 150px;
}
.partner-card .partner-logo {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.partner-card .partner-logo .chev { color: var(--accent); font-weight: 800; }
.partner-card .partner-tagline { font-size: 0.85rem; color: var(--steel-600); }
.case-card__body { padding: 26px; display: flex; flex-direction: column; flex-grow: 1; }
.case-card__tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.case-card__tags span {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--steel-100);
  color: var(--steel-600);
  border-radius: 4px;
  padding: 4px 10px;
}
.case-card h3 { font-size: 1.08rem; }
.case-card p { font-size: 0.92rem; color: var(--steel-600); }
.case-card .result {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--steel-200);
  font-weight: 700;
  color: var(--teal);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: start;
}

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--navy);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 118, 44, 0.15);
}
.form-group .error-msg {
  display: none;
  color: #C0392B;
  font-size: 0.82rem;
  margin-top: 5px;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea { border-color: #C0392B; }
.form-group.has-error .error-msg { display: block; }

.form-status {
  display: none;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  margin-top: 12px;
}
.form-status.success { display: block; background: #E7F6EE; color: #1E7A46; }
.form-status.error { display: block; background: #FBEAE8; color: #B03A2E; }

.contact-info-box {
  background: var(--steel-100);
  border-radius: var(--radius);
  padding: 30px;
  margin-bottom: 24px;
}
.contact-info-box h3 { font-size: 1.05rem; }
.contact-info-box p { font-size: 0.95rem; color: var(--steel-600); margin-bottom: 8px; }
.contact-info-box strong { color: var(--navy); }

.map-placeholder {
  background: var(--steel-200);
  border-radius: var(--radius);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-600);
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   CTA banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: 14px;
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner h2 { color: var(--white); margin: 0; }
.cta-banner p { color: rgba(255,255,255,0.78); margin: 8px 0 0; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-dark);
  color: var(--steel-400);
  padding: 64px 0 32px;
  font-size: 0.92rem;
}
.site-footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.site-footer a { color: var(--steel-400); display: block; padding: 4px 0; }
.site-footer a:hover { color: var(--white); text-decoration: none; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-grid .logo { color: var(--white); margin-bottom: 12px; display: inline-block; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Scroll reveal
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .case-card { transition: none; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1199px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .section { padding: 52px 0; }
  .grid--3, .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .service-layout, .contact-layout { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 64px; }
  .hero .btn + .btn { margin-left: 0; margin-top: 12px; }
  .cta-banner { padding: 40px 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .nav-toggle { display: block; }
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 24px;
    border-bottom: 1px solid var(--steel-200);
    box-shadow: var(--shadow-lg);
    display: none;
    max-height: calc(100vh - 72px);
    max-height: calc(100dvh - 72px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav.is-open { display: flex; }
  .nav a, .dropdown__toggle { padding: 12px 0; width: 100%; text-align: left; }
  .dropdown__menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 16px;
    min-width: 0;
  }
  .nav .btn { margin-top: 12px; text-align: center; }

  /* Hero CTAs: stack full-width */
  .hero .btn {
    display: block;
    width: 100%;
    text-align: center;
  }
  .hero .btn + .btn { margin-left: 0; }

  /* Header logo: keep clear of the hamburger on small screens */
  .logo--img img { height: 40px; }

  /* CTA banner button full-width */
  .cta-banner .btn { width: 100%; text-align: center; }
}

/* Very small phones */
@media (max-width: 479px) {
  .container { padding: 0 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .logo--img img { height: 36px; }
  .hero { padding: 56px 0 48px; }
  .section { padding: 44px 0; }
  .cta-banner { padding: 32px 20px; }
  .steps li { padding: 18px 18px 18px 58px; }
  .steps li::before { left: 16px; }
  .contact-info-box, .sidebar-box { padding: 22px 18px; }
}