/* ============================================
   HOME BUILDER — Global Styles
   Font: Montserrat only | Palette: Black & White
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,300;1,400&display=swap');

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --off-white: #f7f6f4;
  --light-gray: #ebebeb;
  --mid-gray: #b0b0b0;
  --dark-gray: #3a3a3a;
  --accent: #0a0a0a;
  --font: 'Montserrat', sans-serif;
  --nav-h: 80px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ---------- Typography ---------- */
.display { font-size: clamp(2.8rem, 6vw, 6rem); font-weight: 200; letter-spacing: -0.02em; line-height: 1.05; }
.heading-1 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 300; letter-spacing: -0.01em; line-height: 1.1; }
.heading-2 { font-size: clamp(1.5rem, 2.5vw, 2.2rem); font-weight: 300; letter-spacing: 0; line-height: 1.2; }
.heading-3 { font-size: 1.1rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
.label { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; }
.body-lg { font-size: 1.05rem; font-weight: 300; line-height: 1.75; }
.body-sm { font-size: 0.875rem; font-weight: 400; line-height: 1.65; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 40px; }
.container--narrow { max-width: 900px; margin: 0 auto; padding: 0 40px; }
.section { padding: 100px 0; }
.section--sm { padding: 60px 0; }
.section--lg { padding: 140px 0; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--light-gray);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 40px;
}
.nav__logo {
  height: 36px;
  width: auto;
  display: block;
}
.nav__logo img { height: 100%; width: auto; }
.nav__links { display: flex; align-items: center; gap: 40px; }
.nav__link {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--black);
  position: relative;
  padding-bottom: 2px;
  white-space: nowrap;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--black);
  transition: width var(--transition);
}
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }

/* ---- Split nav (all pages) ---- */
.nav--split { background: transparent; }
.nav--split .nav__split-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 48px;
}
.nav--split .nav__links--left {
  display: flex; align-items: center; gap: 36px; justify-content: flex-start;
}
.nav--split .nav__links--right {
  display: flex; align-items: center; gap: 24px; justify-content: flex-end;
}
.nav--split .nav__logo--center {
  height: 34px; display: flex; align-items: center; justify-content: center; padding: 0 24px;
}
.nav--split .nav__logo--center img { height: 100%; width: auto; }
.nav__cta-link {
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 8px 20px; border: 1px solid currentColor; color: var(--black);
  transition: background var(--transition), color var(--transition);
}
.nav__cta-link:hover { background: var(--black); color: var(--white); }
.nav--light .nav__cta-link { color: var(--white); border-color: rgba(255,255,255,0.6); }
.nav--light .nav__cta-link:hover { background: var(--white); color: var(--black); }
.nav--light.scrolled .nav__cta-link { color: var(--black); border-color: var(--black); }
.nav--light.scrolled .nav__cta-link:hover { background: var(--black); color: var(--white); }
.nav--split .nav__burger { display: none; }

/* Logo invert on dark nav */
.nav--light .nav__logo img,
.nav--light .nav__logo--center img { filter: invert(1) brightness(2); }
.nav--light.scrolled .nav__logo img,
.nav--light.scrolled .nav__logo--center img { filter: none; }

.nav--light .nav__link { color: var(--white); }
.nav--light .nav__link::after { background: var(--white); }
.nav--light.scrolled .nav__link { color: var(--black); }
.nav--light.scrolled .nav__link::after { background: var(--black); }

.nav__cta {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid currentColor;
  transition: background var(--transition), color var(--transition);
}
.nav__cta:hover { background: var(--black); color: var(--white); }
.nav--light .nav__cta { color: var(--white); border-color: var(--white); }
.nav--light .nav__cta:hover { background: var(--white); color: var(--black); }
.nav--light.scrolled .nav__cta { color: var(--black); border-color: var(--black); }
.nav--light.scrolled .nav__cta:hover { background: var(--black); color: var(--white); }

/* Mobile menu toggle */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--black);
  transition: transform var(--transition), opacity var(--transition);
}
.nav--light .nav__burger span { background: var(--white); }
.nav--light.scrolled .nav__burger span { background: var(--black); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 36px;
  transition: all var(--transition);
  cursor: pointer;
}
.btn--dark {
  background: var(--black);
  color: var(--white);
}
.btn--dark:hover { background: var(--dark-gray); }
.btn--outline {
  border: 1px solid var(--black);
  color: var(--black);
}
.btn--outline:hover { background: var(--black); color: var(--white); }
.btn--outline-light {
  border: 1px solid var(--white);
  color: var(--white);
}
.btn--outline-light:hover { background: var(--white); color: var(--black); }

.btn__arrow {
  display: inline-block;
  transition: transform var(--transition);
}
.btn:hover .btn__arrow { transform: translateX(5px); }

/* ---------- Divider / Lines ---------- */
.divider { width: 40px; height: 1px; background: var(--black); margin-bottom: 24px; }
.divider--center { margin-left: auto; margin-right: auto; }
.divider--white { background: var(--white); }

/* ---------- Section Label ---------- */
.section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-bottom: 16px;
  display: block;
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  overflow: hidden;
}
.card__img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--light-gray);
}
.card:hover .card__img { transform: scale(1.04); }
.card__body { padding: 20px 0; }
.card__tag {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-bottom: 8px;
  display: block;
}
.card__title { font-size: 1rem; font-weight: 500; margin-bottom: 6px; }
.card__price { font-size: 0.9rem; font-weight: 600; }

/* ---------- Grid ---------- */
.grid { display: grid; }
.grid--2 { grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 28px; }
.form-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dark-gray);
  margin-bottom: 10px;
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 0;
  border: none;
  border-bottom: 1px solid var(--light-gray);
  background: transparent;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--black);
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus { border-color: var(--black); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { cursor: pointer; }
.form-input::placeholder,
.form-textarea::placeholder { color: var(--mid-gray); font-weight: 300; }

/* ---------- Footer ---------- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 80px 0 40px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer__brand p {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--mid-gray);
  margin-top: 20px;
  max-width: 300px;
  line-height: 1.7;
}
.footer__col-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}
.footer__links { list-style: none; }
.footer__links li { margin-bottom: 12px; }
.footer__links a {
  font-size: 0.875rem;
  font-weight: 300;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--white); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
}
.footer__copy {
  font-size: 0.75rem;
  font-weight: 300;
  color: rgba(255,255,255,0.3);
}
.footer__logo-img { height: 28px; filter: invert(1) brightness(2); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-light { color: var(--white); }
.bg-black { background: var(--black); color: var(--white); }
.bg-off-white { background: var(--off-white); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-40 { gap: 40px; }
.overflow-hidden { overflow: hidden; }

/* ---------- Scroll animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.85s cubic-bezier(0.16,1,0.3,1), transform 0.85s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Reveal variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1), transform 0.9s cubic-bezier(0.16,1,0.3,1);
}
.reveal-left.visible { opacity: 1; transform: none; }

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1), transform 0.9s cubic-bezier(0.16,1,0.3,1);
}
.reveal-right.visible { opacity: 1; transform: none; }

.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1), transform 0.9s cubic-bezier(0.16,1,0.3,1);
}
.reveal-scale.visible { opacity: 1; transform: none; }

/* ---------- Page load animation ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: none; }
}
@keyframes lineGrow {
  from { transform: scaleX(0); transform-origin: left; }
  to   { transform: scaleX(1); transform-origin: left; }
}
@keyframes counterUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Hero text animations ---------- */
.hero-anim-1 { animation: fadeInUp 1s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
.hero-anim-2 { animation: fadeInUp 1s cubic-bezier(0.16,1,0.3,1) 0.4s both; }
.hero-anim-3 { animation: fadeInUp 1s cubic-bezier(0.16,1,0.3,1) 0.6s both; }
.hero-anim-4 { animation: fadeInUp 1s cubic-bezier(0.16,1,0.3,1) 0.8s both; }
.hero-anim-fade { animation: fadeIn 1.4s ease 0.3s both; }

/* ---------- Image parallax container ---------- */
.parallax-img {
  overflow: hidden;
  position: relative;
}
.parallax-img img {
  transform: scale(1.12);
  transition: transform 0.1s linear;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Hover lift ---------- */
.hover-lift {
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1), box-shadow 0.4s cubic-bezier(0.16,1,0.3,1);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

/* ---------- Text cursor blink ---------- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: currentColor;
  margin-left: 3px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

/* ---------- Magnetic button effect ---------- */
.btn--magnetic {
  position: relative;
  overflow: hidden;
}
.btn--magnetic::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.btn--magnetic:hover::before { transform: translateX(0); }

/* ---------- Number counter animation ---------- */
.stat-number {
  display: inline-block;
  animation: counterUp 0.8s cubic-bezier(0.16,1,0.3,1) both;
}

/* ---------- Stagger children ---------- */
.stagger-children > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.stagger-children.visible > *:nth-child(1) { opacity:1; transform:none; transition-delay:0s; }
.stagger-children.visible > *:nth-child(2) { opacity:1; transform:none; transition-delay:0.1s; }
.stagger-children.visible > *:nth-child(3) { opacity:1; transform:none; transition-delay:0.2s; }
.stagger-children.visible > *:nth-child(4) { opacity:1; transform:none; transition-delay:0.3s; }
.stagger-children.visible > *:nth-child(5) { opacity:1; transform:none; transition-delay:0.4s; }
.stagger-children.visible > *:nth-child(6) { opacity:1; transform:none; transition-delay:0.5s; }

/* ---------- Line draw animation ---------- */
.line-draw {
  position: relative;
  overflow: hidden;
}
.line-draw::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.line-draw:hover::after { transform: scaleX(1); }

/* ---------- Image overlay hover ---------- */
.img-overlay {
  position: relative;
  overflow: hidden;
}
.img-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background 0.4s ease;
}
.img-overlay:hover::after { background: rgba(0,0,0,0.15); }
.img-overlay img {
  transition: transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.img-overlay:hover img { transform: scale(1.06); }

/* ---------- Smooth number ticker ---------- */
@keyframes ticker {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ---------- Lang switcher (shared all pages) ---------- */
.lang-switcher {
  display: flex; align-items: center; gap: 2px;
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em;
  flex-shrink: 0;
}
.lang-btn {
  padding: 4px 8px; cursor: pointer; background: none; border: none;
  font-family: var(--font); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; transition: color 0.2s, opacity 0.2s;
  color: rgba(0,0,0,0.35);
  min-width: 30px; text-align: center;
}
.lang-btn.active { color: var(--black); }
.lang-btn:hover { color: var(--black); opacity: 1; }
.lang-sep { color: rgba(0,0,0,0.2); font-size: 0.6rem; }
.nav--light .lang-btn { color: rgba(255,255,255,0.45); }
.nav--light .lang-btn.active { color: var(--white); }
.nav--light .lang-btn:hover { color: var(--white); opacity: 1; }
.nav--light .lang-sep { color: rgba(255,255,255,0.3); }
.nav--light.scrolled .lang-btn { color: rgba(0,0,0,0.35); }
.nav--light.scrolled .lang-btn.active { color: var(--black); }
.nav--light.scrolled .lang-sep { color: rgba(0,0,0,0.2); }
/* legacy single toggle button */
.lang-toggle {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.18em;
  padding: 6px 14px; border: 1px solid currentColor; background: none;
  cursor: pointer; transition: all var(--transition); color: var(--black); font-family: var(--font);
}
.lang-toggle:hover { background: var(--black); color: var(--white); border-color: var(--black); }

/* ---------- Page hero with image placeholder ---------- */
.page-hero {
  height: 55vh;
  min-height: 380px;
  background: var(--black);
  display: flex;
  align-items: flex-end;
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
  margin-top: var(--nav-h);
}
.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.45;
}

/* ======= RESPONSIVE ======= */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .container, .container--narrow { padding: 0 24px; }
  .section { padding: 70px 0; }
  .section--lg { padding: 80px 0; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
  .page-hero { height: 40vh; min-height: 280px; }
}

@media (max-width: 480px) {
  .grid--4 { grid-template-columns: 1fr; }
}

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
}
.mobile-menu.open { display: flex; }
.mobile-menu__link {
  font-size: 1.8rem;
  font-weight: 200;
  letter-spacing: 0.05em;
  color: var(--black);
  transition: opacity var(--transition);
}
.mobile-menu__link:hover { opacity: 0.5; }
.mobile-menu__close {
  position: absolute;
  top: 24px; right: 30px;
  font-size: 1.5rem;
  font-weight: 200;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font);
}