/* ==========================================================================
   Vision J Construction — Stylesheet
   Mobile-first, plain CSS, no framework.
   ========================================================================== */

:root {
  --dark: #1b2126;
  --dark-2: #12171b;
  --charcoal: #2c3136;
  --blue: #2f7fc1;
  --blue-dark: #1d5c93;
  --blue-light: #4fa3e0;
  --bg: #f5f7f9;
  --white: #ffffff;
  --text: #24282c;
  --text-light: #636b73;
  --border: #e5e8eb;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(20, 25, 30, 0.08);
  --font-head: "Poppins", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

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

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--charcoal);
  line-height: 1.2;
  margin: 0 0 .5em;
}

p { margin: 0 0 1em; color: var(--text-light); }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

ul { list-style: none; margin: 0; padding: 0; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

section { padding: 64px 0; }

.eyebrow {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

.eyebrow-light { color: var(--blue-light); }

h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.section-lead {
  max-width: 640px;
  font-size: 16px;
  margin-bottom: 40px;
}

.icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  padding: 15px 28px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

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

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.55);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  color: var(--white);
  border-color: #fff;
}

.btn-call {
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  padding: 10px 18px;
}
.btn-call:hover { background: var(--blue-dark); color: #fff; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: contain;
  background: #fff;
  padding: 3px;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name {
  font-family: var(--font-head);
  font-weight: 800;
  color: #fff;
  font-size: 19px;
}
.brand-sub {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--blue-light);
  font-size: 10px;
  letter-spacing: 2px;
}

.main-nav {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 24px;
  transform: translateX(100%);
  transition: transform .3s ease;
  overflow-y: auto;
}
.main-nav.open { transform: translateX(0); }

.main-nav ul {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.nav-link {
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 20px;
}
.nav-link:hover { color: var(--blue-light); }

.header-call { align-self: flex-start; }

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 210;
}
.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .hamburger { display: none; }
  .main-nav {
    position: static;
    transform: none;
    flex-direction: row;
    align-items: center;
    background: transparent;
    padding: 0;
    gap: 32px;
    width: auto;
    overflow: visible;
  }
  .main-nav ul { flex-direction: row; gap: 28px; }
  .nav-link { font-size: 15px; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background-size: cover;
  background-position: center;
  min-height: 88vh;
  display: flex;
  align-items: center;
  color: #fff;
}

.hero-inner { max-width: 720px; padding-top: 40px; padding-bottom: 40px; }

.hero h1 {
  color: #fff;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--blue-light); }

.hero-sub {
  color: rgba(255,255,255,.88);
  font-size: 17px;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

@media (min-width: 768px) {
  .hero h1 { font-size: 58px; }
  .hero-sub { font-size: 19px; }
}

/* ==========================================================================
   Recent Projects
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.project-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  border: none;
  padding: 0;
  cursor: pointer;
  background: var(--bg);
}
.project-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.project-item:hover img { transform: scale(1.08); }

.project-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  color: #fff;
  text-align: left;
  background: linear-gradient(0deg, rgba(0,0,0,.75), rgba(0,0,0,0));
}

@media (min-width: 700px) {
  .project-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   Services
   ========================================================================== */
.services { background: var(--bg); }

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.service-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(20,25,30,.12); }

.service-photo {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg);
}
.service-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.service-card:hover .service-photo img { transform: scale(1.06); }

.service-body { padding: 24px 22px 28px; }

.service-card h3 {
  font-size: 17px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 10px;
}
.service-card p { font-size: 14.5px; margin-bottom: 16px; }

.learn-more {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  color: var(--blue);
}
.learn-more:hover { color: var(--blue-dark); }

@media (min-width: 640px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .service-grid { grid-template-columns: repeat(4, 1fr); max-width: none; }
}

/* ==========================================================================
   Why Choose Us
   ========================================================================== */
.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.value-item {
  background: var(--dark);
  border-radius: var(--radius);
  padding: 30px 26px;
  border: 1px solid rgba(255,255,255,.06);
}

.value-num {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 30px;
  color: var(--blue-light);
  margin-bottom: 10px;
}

.value-item h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.value-item p { color: rgba(255,255,255,.72); font-size: 14.5px; margin-bottom: 0; }

@media (min-width: 640px) {
  .value-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .value-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials { background: var(--bg); }

.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}

.stars {
  color: #f5a524;
  font-size: 18px;
  letter-spacing: 3px;
  margin-bottom: 14px;
}

.testimonial-card p {
  color: var(--text);
  font-size: 15px;
  font-style: italic;
}

.testimonial-name {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--charcoal);
}

@media (min-width: 768px) {
  .testimonial-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.accordion { max-width: 760px; }

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 4px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 16px;
  color: var(--charcoal);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 16px;
}

.accordion-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
  background: var(--blue);
  color: #fff;
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.accordion-panel p {
  padding: 0 4px 20px;
  font-size: 15px;
  margin: 0;
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */
.cta-banner {
  background: var(--dark);
  color: #fff;
  text-align: center;
}
.cta-inner { display: flex; flex-direction: column; align-items: center; }
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,.75); max-width: 560px; }

.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  color: var(--blue-light);
  margin-bottom: 26px;
}
.cta-phone:hover { color: #fff; }
.cta-phone .icon { width: 24px; height: 24px; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.contact-details { margin-top: 24px; display: flex; flex-direction: column; gap: 16px; }
.contact-details li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-size: 15px;
}
.contact-details .icon { color: var(--blue); }

.contact-form {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--border);
}

.form-row { margin-bottom: 18px; display: flex; flex-direction: column; }
.form-row label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 7px;
  color: var(--charcoal);
}

.form-row input,
.form-row select,
.form-row textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  width: 100%;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(47,127,193,.15);
}

.form-row.has-error input,
.form-row.has-error select {
  border-color: #d9453f;
}
.field-error {
  color: #d9453f;
  font-size: 12.5px;
  margin-top: 5px;
  min-height: 14px;
}

.form-submit { width: 100%; justify-content: center; }

.form-success {
  display: none;
  margin: 16px 0 0;
  padding: 12px 14px;
  background: rgba(47,127,193,.1);
  color: var(--blue-dark);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}
.form-success.visible { display: block; }
.form-success.error {
  background: rgba(217,69,63,.1);
  color: #d9453f;
}

.form-submit:disabled { opacity: .7; cursor: not-allowed; }

@media (min-width: 900px) {
  .contact-inner { grid-template-columns: 1fr 1.1fr; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--dark-2); color: rgba(255,255,255,.7); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding: 60px 0 40px;
}

.footer-logo {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  background: #fff;
  object-fit: contain;
  padding: 5px;
  margin-bottom: 16px;
}

.footer-tagline {
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}
.footer-location { font-size: 13.5px; margin-bottom: 0; }

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col li { font-size: 14px; color: rgba(255,255,255,.65); }
.footer-col a { color: rgba(255,255,255,.65); }
.footer-col a:hover { color: var(--blue-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
}
.footer-bottom p { margin: 0; font-size: 13px; text-align: center; color: rgba(255,255,255,.5); }

@media (min-width: 700px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}

/* ==========================================================================
   Lightbox
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10,12,14,.92);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 999;
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: min(900px, 92vw);
  max-height: 78vh;
  border-radius: 8px;
  object-fit: contain;
}
.lightbox p {
  color: #fff;
  margin-top: 16px;
  font-family: var(--font-head);
  font-weight: 600;
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
}

/* ==========================================================================
   Misc
   ========================================================================== */
@media (min-width: 768px) {
  section { padding: 96px 0; }
  h2 { font-size: 38px; }
}