/* ===== Design Tokens ===== */
:root {
  --green: #1f8a5b;
  --green-dark: #146a45;
  --green-light: #e8f5ef;
  --blue: #1670b8;
  --blue-dark: #0f5288;
  --blue-light: #e6f1fa;
  --ink: #17323f;
  --body: #4a5b63;
  --muted: #7a8a92;
  --bg: #ffffff;
  --bg-alt: #f4f9f7;
  --border: #e2ebe8;
  --white: #ffffff;
  --shadow-sm: 0 2px 10px rgba(20, 60, 50, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 60, 50, 0.10);
  --shadow-lg: 0 18px 50px rgba(20, 60, 50, 0.16);
  --radius: 14px;
  --radius-lg: 22px;
  --grad: linear-gradient(135deg, var(--green) 0%, var(--blue) 100%);
  --grad-soft: linear-gradient(135deg, var(--green-light) 0%, var(--blue-light) 100%);
  --header-h: 74px;
  --trans: 0.3s ease;
}

/* ===== Reset ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: "Open Sans", system-ui, sans-serif;
  color: var(--body);
  line-height: 1.65;
  background: var(--bg);
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: "Montserrat", sans-serif; color: var(--ink); line-height: 1.2; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 22px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: "Montserrat", sans-serif; font-weight: 600; font-size: 0.98rem;
  padding: 13px 26px; border-radius: 50px; border: 2px solid transparent;
  cursor: pointer; transition: var(--trans); white-space: nowrap;
}
.btn-primary { background: var(--grad); color: var(--white); box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.8); }
.btn-outline:hover { background: var(--white); color: var(--green-dark); }
.btn-phone { background: var(--grad); color: var(--white); padding: 10px 18px; font-size: 0.9rem; }
.btn-phone:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-block { width: 100%; }

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  height: var(--header-h); display: flex; align-items: center;
  background: rgba(255,255,255,0.96); transition: var(--trans);
  border-bottom: 1px solid transparent;
}
.header.scrolled { box-shadow: var(--shadow-sm); border-bottom-color: var(--border); backdrop-filter: blur(8px); }
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 9px; font-family: "Montserrat", sans-serif; font-weight: 800; font-size: 1.22rem; color: var(--ink); }
.logo-img { height: 40px; width: auto; object-fit: contain; }
.logo-mark { font-size: 1.4rem; }
.logo-accent { color: var(--green); font-weight: 700; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav-list { display: flex; gap: 26px; }
.nav-link { font-family: "Montserrat", sans-serif; font-weight: 500; font-size: 0.95rem; color: var(--ink); position: relative; padding: 4px 0; }
.nav-link::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--grad); transition: var(--trans); }
.nav-link:hover { color: var(--green); }
.nav-link:hover::after { width: 100%; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.hamburger span { width: 26px; height: 3px; background: var(--ink); border-radius: 3px; transition: var(--trans); }
.hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--header-h); color: var(--white);
  background: linear-gradient(rgba(10,40,55,0.72), rgba(10,55,45,0.78)),
    url("https://images.unsplash.com/photo-1560518883-ce09059eeffa?auto=format&fit=crop&w=1600&q=80") center/cover no-repeat;
}
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(31,138,91,0.35), rgba(22,112,184,0.35)); }
.hero-content { position: relative; z-index: 2; max-width: 760px; padding-top: 40px; padding-bottom: 40px; }
.hero-eyebrow { display: inline-block; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); padding: 7px 16px; border-radius: 50px; font-size: 0.82rem; font-weight: 600; font-family: "Montserrat", sans-serif; letter-spacing: 0.4px; margin-bottom: 20px; }
.hero-title { font-size: clamp(2.1rem, 5.5vw, 3.6rem); font-weight: 800; color: var(--white); margin-bottom: 18px; }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.18rem); max-width: 620px; margin-bottom: 30px; color: rgba(255,255,255,0.92); }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 15px; margin-bottom: 34px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 22px; font-size: 0.92rem; font-weight: 600; font-family: "Montserrat", sans-serif; }

/* ===== Sections ===== */
.section { padding: 92px 0; }
.services { background: var(--bg-alt); }
.why { background: var(--white); }
.coverage { background: var(--grad-soft); }
.about { background: var(--bg-alt); }
.contact { background: var(--white); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 54px; }
.section-eyebrow { display: inline-block; color: var(--green); font-family: "Montserrat", sans-serif; font-weight: 700; font-size: 0.85rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px; }
.section-title { font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 800; margin-bottom: 14px; }
.section-lead { color: var(--muted); font-size: 1.05rem; }

/* ===== Cards / Grids ===== */
.grid { display: grid; gap: 26px; }
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: var(--trans); }

.services-grid { grid-template-columns: repeat(3, 1fr); }
.service-card { padding: 34px 28px; text-align: left; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.service-icon { width: 62px; height: 62px; display: flex; align-items: center; justify-content: center; font-size: 1.7rem; border-radius: 16px; background: var(--grad-soft); margin-bottom: 18px; }
.service-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.service-card p { color: var(--muted); font-size: 0.96rem; }

/* ===== Why ===== */
.why-grid { grid-template-columns: repeat(4, 1fr); }
.why-item { text-align: center; padding: 30px 20px; border-radius: var(--radius); transition: var(--trans); }
.why-item:hover { background: var(--bg-alt); transform: translateY(-4px); }
.why-icon { font-size: 2.6rem; margin-bottom: 14px; }
.why-item h3 { font-size: 1.08rem; margin-bottom: 8px; }
.why-item p { color: var(--muted); font-size: 0.92rem; }

/* ===== Coverage ===== */
.coverage-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; max-width: 900px; margin: 0 auto 30px; }
.coverage-grid span { background: var(--white); border: 1px solid var(--border); border-radius: 10px; padding: 12px 10px; text-align: center; font-weight: 600; font-family: "Montserrat", sans-serif; font-size: 0.92rem; color: var(--ink); box-shadow: var(--shadow-sm); transition: var(--trans); }
.coverage-grid span:hover { background: var(--grad); color: var(--white); transform: translateY(-3px); }
.coverage-note { text-align: center; font-size: 1.05rem; max-width: 640px; margin: 0 auto; color: var(--ink); }
.coverage-note a { color: var(--blue-dark); font-weight: 700; }

/* ===== About ===== */
.about-inner { display: grid; grid-template-columns: 1.2fr 0.9fr; gap: 54px; align-items: center; }
.about-text .section-eyebrow, .about-text .section-title { text-align: left; }
.about-text p { margin-bottom: 16px; }
.about-list { margin: 20px 0 26px; display: grid; gap: 10px; }
.about-list li { font-weight: 600; color: var(--ink); font-family: "Montserrat", sans-serif; font-size: 0.96rem; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stat-box { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 18px; text-align: center; box-shadow: var(--shadow-sm); transition: var(--trans); }
.stat-box:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-num { display: block; font-family: "Montserrat", sans-serif; font-weight: 800; font-size: 2rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 4px; }
.stat-label { color: var(--muted); font-size: 0.9rem; font-weight: 600; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1.3fr 0.9fr; gap: 34px; align-items: start; }
.contact-form { padding: 34px 30px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-family: "Montserrat", sans-serif; font-weight: 600; font-size: 0.9rem; color: var(--ink); margin-bottom: 7px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 13px 15px; border: 1.5px solid var(--border); border-radius: 10px;
  font-family: "Open Sans", sans-serif; font-size: 0.96rem; color: var(--ink); transition: var(--trans); background: var(--bg-alt);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--green); background: var(--white); box-shadow: 0 0 0 3px rgba(31,138,91,0.12); }
.form-group textarea { resize: vertical; }
.error { color: #d64545; font-size: 0.82rem; display: block; margin-top: 5px; min-height: 1em; }
.form-group.invalid input, .form-group.invalid textarea { border-color: #d64545; }
.form-success { margin-top: 16px; background: var(--green-light); color: var(--green-dark); padding: 14px 16px; border-radius: 10px; font-weight: 600; font-family: "Montserrat", sans-serif; text-align: center; }

.contact-info { display: grid; gap: 18px; }
.info-card { display: flex; gap: 16px; align-items: center; padding: 22px 24px; }
.info-icon { width: 54px; height: 54px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; border-radius: 14px; background: var(--grad-soft); }
.info-card h3 { font-size: 1.05rem; margin-bottom: 3px; }
.info-card a { color: var(--blue-dark); font-weight: 600; word-break: break-word; }
.info-card p { color: var(--muted); font-size: 0.86rem; }

/* ===== Footer ===== */
.footer { background: #10242e; color: rgba(255,255,255,0.82); padding-top: 58px; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1.4fr; gap: 40px; padding-bottom: 40px; }
.footer-logo { color: var(--white); margin-bottom: 14px; }
.footer-logo .logo-text { color: var(--white); }
.footer-tagline { font-size: 0.95rem; max-width: 320px; }
.footer-col h4 { color: var(--white); font-size: 1.05rem; margin-bottom: 16px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { font-size: 0.94rem; transition: var(--trans); }
.footer-col a:hover { color: var(--green); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 20px 0; text-align: center; font-size: 0.88rem; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 940px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .coverage-grid { grid-template-columns: repeat(3, 1fr); }
  .about-inner, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav {
    position: fixed; top: var(--header-h); right: 0; width: 78%; max-width: 320px;
    height: calc(100vh - var(--header-h)); background: var(--white);
    flex-direction: column; align-items: flex-start; gap: 0; padding: 26px;
    box-shadow: var(--shadow-lg); transform: translateX(110%); transition: transform 0.35s ease;
  }
  .nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; gap: 4px; width: 100%; }
  .nav-list li { width: 100%; }
  .nav-link { display: block; padding: 12px 0; border-bottom: 1px solid var(--border); width: 100%; }
  .nav-phone { margin-top: 16px; }
  .hamburger { display: flex; }
  .section { padding: 68px 0; }
}
@media (max-width: 560px) {
  .services-grid, .why-grid, .coverage-grid, .about-stats, .footer-inner { grid-template-columns: 1fr; }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-badges { gap: 10px; flex-direction: column; }
  .hero-buttons .btn { flex: 1; }
}