/* =============================================================================
   A&F Engineering Services — Stylesheet
   File:    style.css
   Author:  A&F Engineering Services
   Desc:    All styles for the corporate one-page website
   ============================================================================= */

:root {
    --bg:        #F5F7FA;
    --bg2:       #FFFFFF;
    --blue:      #1A6FD4;
    --blue-mid:  #1560BB;
    --blue-bright: #2E8BF0;
    --blue-pale: rgba(30,111,212,0.08);
    --blue-glow: rgba(30,111,212,0.14);
    --navy:      #0D1B35;
    --body-text: #2C3A4F;
    --muted:     #6B7C93;
    --light:     #A8B8CC;
    --border:    rgba(30,80,160,0.12);
    --card-bg:   #FFFFFF;
    --shadow-sm: 0 1px 4px rgba(13,27,53,0.06), 0 4px 16px rgba(13,27,53,0.06);
    --shadow-md: 0 4px 12px rgba(13,27,53,0.08), 0 12px 32px rgba(13,27,53,0.08);
    --shadow-lg: 0 8px 24px rgba(13,27,53,0.10), 0 24px 56px rgba(13,27,53,0.10);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--body-text);
    overflow-x: hidden;
    line-height: 1.65;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 5%;
    height: 70px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: background 0.3s, box-shadow 0.3s;
  }

  nav.scrolled {
    background: rgba(255,255,255,0.98);
    box-shadow: var(--shadow-md);
  }

  .nav-logo {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none;
  }

  .nav-logo-img {
    height: 62px;
    width: auto;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
  }

  .nav-brand {
    display: flex; flex-direction: column; justify-content: center;
    line-height: 1.15;
  }

  .nav-brand-name {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1.575rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: 0.5px;
    color: #000000 !important;
    white-space: nowrap;
    text-transform: uppercase;
  }

  .nav-brand-sub {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.6rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: 1.5px;
    color: #1A6FD4;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .nav-logo-icon {
    width: 40px; height: 40px;
    background: var(--blue);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 900; font-size: 14px;
    color: #fff; letter-spacing: -0.5px;
    flex-shrink: 0;
  }

  .nav-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 800; font-size: 1.15rem;
    color: var(--navy); letter-spacing: 0.3px;
    line-height: 1.1;
  }

  .nav-brand span {
    color: var(--blue); display: block;
    font-size: 0.65rem; font-weight: 600;
    letter-spacing: 2px; text-transform: uppercase;
  }

  .nav-links { display: flex; gap: 32px; list-style: none; }

  .nav-links a {
    text-decoration: none;
    font-size: 0.82rem; font-weight: 500;
    color: var(--muted);
    letter-spacing: 0.6px; text-transform: uppercase;
    transition: color 0.2s;
    position: relative;
  }

  .nav-links a::after {
    content: '';
    position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--blue);
    transition: width 0.25s;
    border-radius: 2px;
  }

  .nav-links a:hover { color: var(--navy); }
  .nav-links a:hover::after { width: 100%; }

  .nav-cta {
    background: var(--blue); color: #fff !important;
    padding: 8px 20px; border-radius: 6px;
    font-weight: 600 !important;
    box-shadow: 0 2px 8px rgba(26,111,212,0.25);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s !important;
  }
  .nav-cta:hover {
    background: var(--blue-mid) !important;
    box-shadow: 0 4px 16px rgba(26,111,212,0.35) !important;
    transform: translateY(-1px);
  }
  .nav-cta::after { display: none !important; }

  /* ── HERO ── */
  #home {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding: 120px 5% 80px;
    background: #fff;
  }

  .hero-bg {
    position: absolute; inset: 0;
    background:
      radial-gradient(ellipse 65% 65% at 72% 50%, rgba(26,111,212,0.07) 0%, transparent 65%),
      linear-gradient(160deg, #ffffff 0%, #F0F5FB 55%, #EAF1FA 100%);
  }

  .hero-bg::before {
    content: '';
    position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(26,111,212,0.12) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(ellipse 70% 70% at 65% 50%, black 10%, transparent 80%);
    opacity: 0.7;
  }

  .hero-bg::after {
    content: '';
    position: absolute; right: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, transparent, var(--blue), transparent);
    opacity: 0.25;
  }

  .hero-content {
    position: relative; z-index: 2;
    max-width: 680px;
  }

  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--blue-pale);
    border: 1px solid rgba(26,111,212,0.22);
    padding: 6px 16px; border-radius: 100px;
    font-size: 0.72rem; font-weight: 600;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 28px;
    animation: fadeUp 0.8s ease both;
  }

  .hero-badge::before {
    content: '';
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--blue);
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%,100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.5); }
  }

  h1 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(3rem, 7vw, 5.2rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -1px;
    text-transform: uppercase;
    color: var(--navy);
    margin-bottom: 24px;
    animation: fadeUp 0.8s 0.15s ease both;
  }

  h1 em {
    font-style: normal;
    color: var(--blue);
    display: block;
  }

  .hero-desc {
    font-size: 1.05rem; color: var(--muted);
    max-width: 500px; margin-bottom: 40px;
    animation: fadeUp 0.8s 0.3s ease both;
    font-weight: 400; line-height: 1.7;
  }

  .hero-actions {
    display: flex; gap: 16px; flex-wrap: wrap;
    animation: fadeUp 0.8s 0.45s ease both;
  }

  .btn-primary {
    background: var(--blue);
    color: #fff; text-decoration: none;
    padding: 14px 32px; border-radius: 6px;
    font-weight: 600; font-size: 0.9rem; letter-spacing: 0.3px;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    display: inline-flex; align-items: center; gap: 8px;
    box-shadow: 0 4px 16px rgba(26,111,212,0.28);
  }

  .btn-primary:hover {
    background: var(--blue-mid);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(26,111,212,0.38);
  }

  .btn-outline {
    border: 1.5px solid var(--border);
    color: var(--body-text); text-decoration: none;
    padding: 14px 32px; border-radius: 6px;
    font-weight: 500; font-size: 0.9rem;
    transition: border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
    display: inline-flex; align-items: center; gap: 8px;
    background: #fff;
    box-shadow: var(--shadow-sm);
  }

  .btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .hero-stats {
    position: absolute; right: 5%; bottom: 12%;
    z-index: 2;
    display: flex; flex-direction: column; gap: 8px;
    animation: fadeUp 0.8s 0.6s ease both;
  }

  .stat-row { display: flex; gap: 12px; }

  .stat {
    text-align: center;
    background: #fff;
    border: 1px solid var(--border);
    padding: 20px 28px; border-radius: 12px;
    box-shadow: var(--shadow-sm);
    min-width: 120px;
    transition: box-shadow 0.2s, transform 0.2s;
  }

  .stat:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

  .stat-num {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 2.4rem; font-weight: 900;
    color: var(--blue); line-height: 1;
  }

  .stat-label {
    font-size: 0.7rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--muted);
    margin-top: 4px; font-weight: 500;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── SECTIONS COMMON ── */
  section { position: relative; z-index: 1; }

  .section-inner {
    max-width: 1200px; margin: 0 auto;
    padding: 90px 5%;
  }

  .label {
    font-size: 0.68rem; font-weight: 700;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 10px;
    display: flex; align-items: center; gap: 10px;
  }

  .label::before {
    content: '';
    width: 24px; height: 2px;
    background: var(--blue);
    flex-shrink: 0; border-radius: 2px;
  }

  h2 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(1.9rem, 4.5vw, 3.2rem);
    font-weight: 800; text-transform: uppercase;
    line-height: 1.05; letter-spacing: -0.5px;
    color: var(--navy); margin-bottom: 16px;
  }

  h2 span { color: var(--blue); }

  .section-desc {
    font-size: 1rem; color: var(--muted);
    max-width: 560px; font-weight: 400; line-height: 1.75;
  }

  /* ── DIVIDER ── */
  .divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border), var(--border), transparent);
    margin: 0 5%;
  }

  /* ── ABOUT ── */
  #about { background: var(--bg); }

  .about-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 72px; align-items: center; margin-top: 48px;
  }

  .about-card-main {
    background: linear-gradient(135deg, #EBF3FF 0%, #F5F9FF 100%);
    border: 1px solid rgba(26,111,212,0.18);
    border-radius: 16px; padding: 40px;
    position: relative; overflow: hidden;
    box-shadow: var(--shadow-sm);
  }

  .about-card-main::before {
    content: '';
    position: absolute; top: -50px; right: -50px;
    width: 180px; height: 180px;
    background: radial-gradient(circle, rgba(26,111,212,0.1) 0%, transparent 70%);
    border-radius: 50%;
  }

  .about-card-main::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--blue), var(--blue-bright));
    border-radius: 0 0 16px 16px;
  }

  .about-tagline {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.9rem; font-weight: 800;
    text-transform: uppercase; color: var(--navy);
    letter-spacing: 0.3px; margin-bottom: 20px; line-height: 1.1;
  }

  .about-tagline span { color: var(--blue); }

  .about-card-main p {
    font-size: 0.95rem; color: var(--body-text);
    line-height: 1.8; font-weight: 400;
  }

  .about-mini-cards {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 10px; margin-top: 20px;
  }

  .mini-card {
    background: #fff; border: 1px solid var(--border);
    border-radius: 10px; padding: 14px; text-align: center;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
  }

  .mini-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .mini-card-icon { font-size: 1.5rem; margin-bottom: 6px; }
  .mini-card-text { font-size: 0.78rem; color: var(--body-text); font-weight: 600; }

  .about-info p {
    font-size: 0.97rem; color: var(--muted);
    line-height: 1.85; font-weight: 400; margin-bottom: 24px;
  }

  .info-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }

  .info-list li {
    display: flex; gap: 14px; align-items: flex-start;
    font-size: 0.9rem; color: var(--muted);
    background: #fff; border: 1px solid var(--border);
    border-radius: 10px; padding: 14px 16px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
  }

  .info-list li:hover { box-shadow: var(--shadow-md); transform: translateX(3px); }

  .info-list li strong {
    color: var(--navy); font-weight: 600;
    min-width: 130px; flex-shrink: 0; font-size: 0.82rem;
  }

  .info-icon {
    width: 24px; height: 24px;
    background: var(--blue-pale);
    border: 1px solid rgba(26,111,212,0.2);
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-size: 0.8rem; margin-top: 1px;
  }

  /* ── SERVICES ── */
  #services { background: #fff; }

  .services-header {
    display: flex; justify-content: space-between; align-items: flex-end;
    margin-bottom: 52px; flex-wrap: wrap; gap: 24px;
  }

  .services-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  }

  .service-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px; padding: 32px;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    cursor: default; position: relative; overflow: hidden;
    box-shadow: var(--shadow-sm);
  }

  .service-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--blue), var(--blue-bright));
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.3s;
    border-radius: 12px 12px 0 0;
  }

  .service-card:hover {
    border-color: rgba(26,111,212,0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
  }

  .service-card:hover::before { transform: scaleX(1); }

  .service-num {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 3.5rem; font-weight: 900;
    color: rgba(26,111,212,0.07);
    line-height: 1; position: absolute;
    top: 16px; right: 20px; letter-spacing: -2px;
  }

  .service-icon {
    width: 48px; height: 48px;
    background: var(--blue-pale);
    border: 1px solid rgba(26,111,212,0.2);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 20px;
  }

  .service-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.25rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px;
    color: var(--navy); margin-bottom: 12px;
  }

  .service-desc {
    font-size: 0.87rem; color: var(--muted);
    line-height: 1.75; font-weight: 400; margin-bottom: 20px;
  }

  .service-tags { display: flex; flex-wrap: wrap; gap: 6px; }

  .tag {
    font-size: 0.68rem; font-weight: 600;
    letter-spacing: 0.5px; text-transform: uppercase;
    color: var(--blue); background: var(--blue-pale);
    border: 1px solid rgba(26,111,212,0.18);
    padding: 3px 10px; border-radius: 100px;
  }

  .service-card.featured {
    grid-column: span 2;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 32px; align-items: start;
    background: linear-gradient(135deg, #EBF3FF 0%, #F8FBFF 100%);
    border-color: rgba(26,111,212,0.2);
  }

  .sub-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

  .sub-list li {
    display: flex; align-items: center; gap: 10px;
    font-size: 0.85rem; color: var(--muted); font-weight: 400;
  }

  .sub-list li::before {
    content: '';
    width: 5px; height: 5px; border-radius: 50%;
    background: var(--blue); flex-shrink: 0;
  }

  .sub-list-title {
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--light); margin-bottom: 10px; margin-top: 16px;
  }
  .sub-list-title:first-child { margin-top: 0; }

  /* ── PRODUCTS ── */
  #products { background: var(--bg); }

  .products-intro {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center; margin-bottom: 52px;
  }

  .belt-types-box {
    background: #fff; border: 1px solid var(--border);
    border-radius: 14px; padding: 28px; box-shadow: var(--shadow-sm);
  }

  .partners-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  }

  .partner-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 28px; box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  }

  .partner-card:hover {
    box-shadow: var(--shadow-md); transform: translateY(-3px);
    border-color: rgba(26,111,212,0.25);
  }

  .partner-name {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.05rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: 0.8px;
    color: var(--blue); margin-bottom: 6px;
  }

  .partner-country {
    font-size: 0.7rem; font-weight: 600;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--light); margin-bottom: 12px;
  }

  .partner-desc {
    font-size: 0.83rem; color: var(--muted);
    font-weight: 400; line-height: 1.7;
  }

  /* ── WHY US ── */
  #why { background: #fff; }

  .why-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 20px; margin-top: 48px;
  }

  .why-card {
    text-align: center; padding: 36px 24px;
    border: 1px solid var(--border);
    border-radius: 14px; background: var(--card-bg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
    position: relative; overflow: hidden;
  }

  .why-card::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--blue), var(--blue-bright));
    transform: scaleX(0); transform-origin: center;
    transition: transform 0.3s;
    border-radius: 0 0 14px 14px;
  }

  .why-card:hover {
    box-shadow: var(--shadow-md); transform: translateY(-4px);
    border-color: rgba(26,111,212,0.25);
  }

  .why-card:hover::after { transform: scaleX(1); }

  .why-icon { font-size: 2.2rem; margin-bottom: 16px; display: block; }

  .why-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.05rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px;
    color: var(--navy); margin-bottom: 10px;
  }

  .why-desc { font-size: 0.83rem; color: var(--muted); line-height: 1.7; font-weight: 400; }

  /* ── CERTIFICATIONS ── */
  #certifications { background: var(--bg); }

  .cert-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 20px; margin-top: 48px;
  }

  .cert-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 32px;
    display: flex; gap: 20px; align-items: flex-start;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  }

  .cert-card:hover {
    box-shadow: var(--shadow-md); transform: translateY(-3px);
    border-color: rgba(26,111,212,0.25);
  }

  .cert-badge {
    width: 52px; height: 52px; flex-shrink: 0;
    background: linear-gradient(135deg, var(--blue), var(--blue-mid));
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(26,111,212,0.25);
  }

  .cert-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.3px;
    color: var(--navy); margin-bottom: 6px;
  }

  .cert-detail {
    font-size: 0.82rem; color: var(--muted); line-height: 1.65; font-weight: 400;
  }

  .cert-status {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.68rem; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase;
    color: #16A34A; margin-top: 10px;
    background: rgba(22,163,74,0.08);
    border: 1px solid rgba(22,163,74,0.2);
    padding: 3px 10px; border-radius: 100px;
  }

  .cert-status::before {
    content: '';
    width: 5px; height: 5px; border-radius: 50%;
    background: #16A34A;
  }

  /* ── CONTACT ── */
  #contact { background: #fff; position: relative; overflow: hidden; }

  #contact::before {
    content: '';
    position: absolute; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(26,111,212,0.05) 0%, transparent 70%);
    bottom: -200px; right: -100px; border-radius: 50%; pointer-events: none;
  }

  .contact-grid {
    display: grid; grid-template-columns: 1fr 1.2fr;
    gap: 72px; align-items: start; margin-top: 52px;
  }

  .contact-info-list {
    list-style: none; display: flex; flex-direction: column; gap: 12px;
  }

  .contact-item {
    display: flex; gap: 16px; align-items: flex-start;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 16px 20px; box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
  }

  .contact-item:hover { box-shadow: var(--shadow-md); transform: translateX(3px); }

  .contact-icon-wrap {
    width: 40px; height: 40px; flex-shrink: 0;
    background: var(--blue-pale); border: 1px solid rgba(26,111,212,0.2);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
  }

  .contact-item-label {
    font-size: 0.66rem; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--light); margin-bottom: 3px;
  }

  .contact-item-value {
    font-size: 0.88rem; color: var(--body-text); font-weight: 400; line-height: 1.55;
  }

  .contact-form {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 36px; box-shadow: var(--shadow-sm);
    display: flex; flex-direction: column; gap: 16px;
  }

  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .form-group { display: flex; flex-direction: column; gap: 7px; }

  label {
    font-size: 0.72rem; font-weight: 600;
    letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--muted);
  }

  input, textarea, select {
    background: #fff; border: 1px solid var(--border);
    border-radius: 8px; padding: 11px 14px;
    color: var(--navy); font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem; font-weight: 400;
    outline: none; transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%; box-shadow: 0 1px 3px rgba(13,27,53,0.04);
  }

  input:focus, textarea:focus, select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(26,111,212,0.1);
  }

  input::placeholder, textarea::placeholder { color: var(--light); }
  textarea { resize: vertical; min-height: 110px; }
  option { background: #fff; color: var(--navy); }

  .form-submit {
    background: var(--blue); color: #fff;
    border: none; padding: 14px 36px; border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem; font-weight: 600; letter-spacing: 0.3px;
    cursor: pointer; align-self: flex-start;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    display: flex; align-items: center; gap: 8px;
    box-shadow: 0 4px 16px rgba(26,111,212,0.28);
  }

  .form-submit:hover {
    background: var(--blue-mid);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(26,111,212,0.38);
  }

  /* ── FOOTER ── */
  footer { background: var(--navy); padding: 52px 5% 28px; }

  .footer-top {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px; margin-bottom: 48px;
  }

  .footer-brand p {
    font-size: 0.87rem; color: rgba(255,255,255,0.4);
    line-height: 1.75; font-weight: 300;
    margin-top: 16px; max-width: 260px;
  }

  .footer-logo-wrap { display: flex; align-items: center; gap: 10px; }

  .footer-logo-img {
    height: 46px;
    width: auto;
    object-fit: contain;
    display: block;
    opacity: 1;
    flex-shrink: 0;
    mix-blend-mode: screen;
  }

  .footer-brand-name {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: 0.4px;
    color: #EEF2F7;
    text-transform: uppercase;
    line-height: 1.15;
  }

  .footer-brand-sub {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.6rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: 1.5px;
    color: #2E8BF0;
    text-transform: uppercase;
  }

  .footer-col h4 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    letter-spacing: 2.5px; text-transform: uppercase;
    color: rgba(255,255,255,0.65); margin-bottom: 18px;
  }

  .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

  .footer-col a {
    font-size: 0.85rem; color: rgba(255,255,255,0.38);
    text-decoration: none; transition: color 0.2s; font-weight: 300;
  }

  .footer-col a:hover { color: var(--blue-bright); }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 12px;
  }

  .footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.32); font-weight: 300; }
  .footer-copy strong { color: rgba(255,255,255,0.6); font-weight: 500; }
  .footer-reg { font-size: 0.72rem; color: rgba(255,255,255,0.22); font-weight: 300; }

  /* ── MOBILE ── */
  @media (max-width: 900px) {
    .nav-links { display: none; }
    .hero-stats { display: none; }
    .about-grid, .products-intro, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
    .services-grid { grid-template-columns: 1fr; }
    .service-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr 1fr; }
    .cert-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    h1 { font-size: 2.9rem; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }
  }

/* ── Form Feedback Messages ─────────────────────────────────────────── */
.form-feedback {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 4px;
  display: none;
}
.form-feedback.success {
  display: block;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.35);
  color: #166534;
}
.form-feedback.error {
  display: block;
  background: rgba(239,68,68,0.10);
  border: 1px solid rgba(239,68,68,0.30);
  color: #991b1b;
}