/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #264F8F;
  --blue-dark: #1a3a6e;
  --blue-light: #3a6ab5;
  --navy: #2c234d;
  --text: #646464;
  --heading: #121619;
  --light-bg: #f5f6f8;
  --border: #e8eaee;
  --white: #ffffff;
  --radius: 6px;
  --transition: 0.25s ease;
  --shadow: 0 4px 20px rgba(38,79,143,0.12);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Barlow', 'Helvetica Neue', sans-serif;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
  border-top: 4px solid var(--blue);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

.text-center { text-align: center; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Quattrocento', Georgia, serif;
  font-weight: 700;
  color: var(--heading);
  line-height: 1.3;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h4 { font-size: 1.1rem; }

.section-sup {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: 'Quattrocento', serif;
  color: var(--heading);
  margin-bottom: 2.5rem;
}
.section-title.text-center { margin-left: auto; margin-right: auto; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  padding: 13px 32px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: var(--transition);
}
.btn-primary:hover { background: var(--blue-dark); color: var(--white); }

.btn-hero {
  display: inline-block;
  padding: 15px 38px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 2px solid var(--blue);
  border-radius: var(--radius);
  transition: var(--transition);
  margin-top: 2rem;
}
.btn-hero:hover {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 4px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
  border-bottom-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 1.5rem;
}

.logo img {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
}
.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--heading);
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transition: var(--transition);
}
.nav-link:hover { color: var(--blue); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  margin-left: auto;
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue);
  white-space: nowrap;
}
.nav-phone i { font-size: 0.8rem; }
.nav-phone:hover { color: var(--blue-dark); }

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 3px;
}
.lang-btn {
  padding: 5px 11px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 50px;
  color: var(--text);
  transition: var(--transition);
}
.lang-btn:hover { color: var(--blue); }
.lang-btn.active { background: var(--blue); color: var(--white); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--heading);
  border-radius: 2px;
  transition: var(--transition);
}
.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); }

/* ===== HERO ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(18,22,25,0.45) 0%, rgba(18,22,25,0.1) 100%);
  z-index: 1;
}

.social-flap {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  background: rgba(38,79,143,0.9);
  border-radius: 8px 0 0 8px;
  padding: 14px 10px;
  gap: 12px;
}
.social-flap-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  margin-bottom: 4px;
}
.social-flap a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  transition: var(--transition);
}
.social-flap a:hover { color: var(--white); }

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 72px;
  max-width: 700px;
}
.hero-sub {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin-bottom: 1rem;
}
.hero-title {
  font-family: 'Quattrocento', serif;
  color: var(--white);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.15;
}
.hero-wave {
  color: var(--white);
  border-bottom: 3px solid var(--blue-light);
  padding-bottom: 2px;
}
.hero-body {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  margin-top: 1.2rem;
  max-width: 480px;
}

.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 8px;
}
.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: var(--transition);
}
.hero-dot.active { background: var(--white); width: 24px; border-radius: 4px; }

/* ===== REFERENCES ===== */
.references {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}
.ref-title {
  font-family: 'Quattrocento', serif;
  font-size: 1.6rem;
  color: var(--heading);
  text-align: center;
  margin-bottom: 2rem;
}
.marquee-wrap {
  overflow: hidden;
  position: relative;
}
.marquee-wrap::before,
.marquee-wrap::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
}
.marquee-wrap::before { left: 0; background: linear-gradient(to right, var(--white), transparent); }
.marquee-wrap::after { right: 0; background: linear-gradient(to left, var(--white), transparent); }

.marquee-track {
  display: flex;
  align-items: center;
  gap: 60px;
  animation: marquee 28s linear infinite;
  width: max-content;
}
.marquee-track img {
  height: 36px;
  width: auto;
  opacity: 0.55;
  filter: grayscale(100%);
  transition: var(--transition);
  flex-shrink: 0;
}
.marquee-track img:hover { opacity: 1; filter: none; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== GALLERY ===== */
.gallery { }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: 380px;
}
.gallery-item {
  position: relative;
  overflow: hidden;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-cap {
  position: absolute;
  inset: 0;
  background: rgba(38,79,143,0.6);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: var(--transition);
}
.gallery-item:hover .gallery-cap { opacity: 1; }
.gallery-cap span {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===== ABOUT ===== */
.about {
  padding: 6rem 0;
  background: var(--white);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-visual img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius);
}
.showroom-label {
  position: absolute;
  top: 24px;
  left: 24px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 6px 14px;
  border-radius: 4px;
  z-index: 1;
}
.about-content p {
  color: var(--text);
  line-height: 1.8;
}
.about-content .section-title {
  margin-bottom: 1.5rem;
}

/* ===== SERVICES ===== */
.services {
  padding: 5rem 0 6rem;
  background: var(--light-bg);
}
.services .section-title { margin-bottom: 3rem; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.service-card {
  position: relative;
  background: var(--white);
  overflow: hidden;
  aspect-ratio: 1/1;
}
.service-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.service-card:hover img { transform: scale(1.06); }
.service-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(38,79,143,0.9) 0%, transparent 100%);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 28px 16px 14px;
}

/* ===== PURPOSE ===== */
.purpose {
  padding: 6rem 0;
  background: var(--white);
}
.purpose .section-sup { display: block; margin-bottom: 0.4rem; }
.purpose .section-title { margin-bottom: 3.5rem; }
.purpose-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.purpose-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition);
}
.purpose-card:hover { background: var(--blue); }
.purpose-card:hover .purpose-icon,
.purpose-card:hover h4,
.purpose-card:hover p { color: var(--white); }

.purpose-icon {
  font-size: 2rem;
  color: var(--blue);
  margin-bottom: 1rem;
  transition: var(--transition);
}
.purpose-card h4 {
  font-family: 'Quattrocento', serif;
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}
.purpose-card p {
  font-size: 0.9rem;
  color: var(--text);
  transition: var(--transition);
}

/* ===== SUSTAINABILITY ===== */
.sustainability {
  position: relative;
  background: url(../assets/images/banner2.png) center/cover no-repeat;
}
.sustain-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 7rem 0;
}
.sustain-quotes {
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius);
  padding: 3rem;
  max-width: 520px;
  margin-right: calc((100vw - 1200px) / 2);
  margin-right: max(calc((100vw - 1200px) / 2), 28px);
}
.sustain-quote {
  display: none;
}
.sustain-quote.active { display: block; }
.quote-icon {
  font-size: 1.8rem;
  color: var(--blue);
  margin-bottom: 1.2rem;
}
.sustain-quote p {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.8;
  font-style: italic;
}
.sustain-nav {
  display: flex;
  gap: 8px;
  margin-top: 2rem;
}
.sq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(38,79,143,0.25);
  transition: var(--transition);
}
.sq-dot.active { background: var(--blue); width: 24px; border-radius: 4px; }

/* ===== CONTACT ===== */
.contact {
  padding: 6rem 0;
  background: var(--light-bg);
}
.contact .section-sup { display: block; }
.contact .section-title { margin-bottom: 3rem; }
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--heading);
  background: var(--white);
  outline: none;
  transition: var(--transition);
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(38,79,143,0.08);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #aaa; }
.form-success {
  display: none;
  color: #2a7a2a;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 0 0;
}
.form-success.show { display: block; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding-top: 0.5rem;
}
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-item i {
  color: var(--blue);
  font-size: 1.1rem;
  margin-top: 3px;
  flex-shrink: 0;
  width: 18px;
}
.contact-item strong {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--heading);
  margin-bottom: 3px;
}
.contact-item span,
.contact-item a {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.5;
}
.contact-item a:hover { color: var(--blue); }
.contact-socials {
  display: flex;
  gap: 10px;
  margin-top: 0.5rem;
}
.contact-socials a {
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 0.85rem;
  transition: var(--transition);
}
.contact-socials a:hover { background: var(--blue); color: var(--white); border-color: var(--blue); }

/* ===== MAP ===== */
.map-section { line-height: 0; }
.map-section iframe { display: block; }

/* ===== FOOTER ===== */
.footer {
  background: var(--heading);
  padding: 4.5rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 1.75rem;
  filter: brightness(0) invert(1);
}
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 1.5rem;
}
.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
}
.footer-contact-list i {
  color: var(--blue-light);
  margin-top: 3px;
  width: 14px;
  flex-shrink: 0;
}
.footer-contact-list a { color: rgba(255,255,255,0.6); }
.footer-contact-list a:hover { color: var(--white); }

.footer-socials {
  display: flex;
  gap: 8px;
}
.footer-socials a {
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.65);
  font-size: 0.8rem;
  transition: var(--transition);
}
.footer-socials a:hover { background: var(--blue); color: var(--white); border-color: var(--blue); }

.footer-col h4 {
  font-family: 'Barlow', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.footer-col ul li a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }

.footer-lang-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.lang-btn-ft {
  text-align: left;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  padding: 0;
  transition: var(--transition);
}
.lang-btn-ft:hover,
.lang-btn-ft.active { color: var(--white); }
.lang-btn-ft.active { font-weight: 600; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}
.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--white); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
  .purpose-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-visual img { height: 320px; }
  .contact-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); height: auto; }
  .gallery-item { height: 220px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .purpose-grid { grid-template-columns: repeat(2, 1fr); }
  .sustain-quotes { margin-right: 28px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0; right: 0;
    flex-direction: column;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    gap: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 28px; border-radius: 0; }
  .nav-link::after { display: none; }
  .hamburger { display: flex; }
  .nav-phone span { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .purpose-grid { grid-template-columns: repeat(2, 1fr); }
  .sustain-inner { padding: 4rem 0; }
  .sustain-quotes { margin: 0 28px; max-width: 100%; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item { height: 160px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .purpose-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}