/* ══════════════════════════════════════════════
   SOLTERIX — SHARED STYLESHEET
   ══════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Roboto', sans-serif; background: #0A0A0A; color: #F0F0F0; overflow-x: hidden; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

:root {
  --black:      #0A0A0A;
  --dark:       #111111;
  --surface:    #181818;
  --card:       #1E1E1E;
  --border:     #2A2A2A;
  --yellow:     #FFF200;
  --yellow-dim: rgba(255,242,0,0.08);
  --blue:       #0072BC;
  --white:      #F5F5F5;
  --muted:      #888888;
  --dim:        #3A3A3A;
  --nav-h:      80px;
  --radius:     10px;
  --max-w:      1200px;
  --section-py: 100px;
}

/* ── UTILITY ── */
.container     { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }
.section       { padding: var(--section-py) 0; }
.section-sm    { padding: 60px 0; }
.text-yellow   { color: var(--yellow); }
.text-muted    { color: var(--muted); }
.text-center   { text-align: center; }
.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.grid-2        { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3        { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.grid-4        { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }

/* ── REVEAL ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left  { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-right { opacity: 0; transform: translateX(40px);  transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-left.visible, .reveal-right.visible { opacity: 1; transform: translateX(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ══════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 40px;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}
.nav.scrolled {
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: var(--max-w); width: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo img { height: 42px; width: auto; }
.nav-links {
  display: flex; align-items: center; gap: 36px;
  font-size: 13px; font-weight: 500; letter-spacing: 0.5px; text-transform: uppercase;
}
.nav-links a {
  color: rgba(255,255,255,0.75);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--yellow);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta {
  background: var(--yellow); color: #000;
  padding: 10px 22px; border-radius: 6px;
  font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: #e8dc00; transform: translateY(-1px); }

/* Hamburger */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: #fff; transition: all 0.3s; border-radius: 2px; }
.nav-mobile {
  display: none; position: fixed; inset: 0; z-index: 998;
  background: #0A0A0A; padding: 100px 40px 40px;
  flex-direction: column; gap: 8px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-family: 'Montserrat', sans-serif; font-size: 28px; font-weight: 800;
  color: var(--white); padding: 12px 0; border-bottom: 1px solid var(--border);
}
.nav-mobile a:hover { color: var(--yellow); }

/* ══════════════════════════════════════════════
   PAGE HERO (inner pages)
   ══════════════════════════════════════════════ */
.page-hero {
  height: 340px; position: relative;
  display: flex; align-items: flex-end;
  padding-bottom: 60px;
  background-size: cover; background-position: center;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 100%);
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero-tag {
  font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--yellow); margin-bottom: 10px; display: block;
}
.page-hero h1 {
  font-family: 'Montserrat', sans-serif; font-size: clamp(36px,5vw,60px);
  font-weight: 900; line-height: 1; color: #fff;
}

/* ══════════════════════════════════════════════
   SECTION HEADER
   ══════════════════════════════════════════════ */
.section-header { margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--yellow); margin-bottom: 14px;
}
.section-tag::before { content: '— '; }
.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(30px, 4vw, 48px); font-weight: 900; line-height: 1.1;
  color: #fff;
}
.section-title span { color: var(--yellow); }
.section-desc {
  font-size: 16px; color: var(--muted); margin-top: 16px;
  max-width: 560px; line-height: 1.7;
}
.section-header.center .section-desc { margin: 16px auto 0; }

/* ══════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 28px; border-radius: 7px;
  font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
  transition: all 0.2s; border: 2px solid transparent;
}
.btn-yellow { background: var(--yellow); color: #000; border-color: var(--yellow); }
.btn-yellow:hover { background: transparent; color: var(--yellow); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-outline:hover { border-color: var(--yellow); color: var(--yellow); }
.btn i { font-size: 13px; }

/* ══════════════════════════════════════════════
   MARQUEE / TICKER
   ══════════════════════════════════════════════ */
.marquee-wrap {
  background: var(--yellow); overflow: hidden;
  padding: 14px 0; border-top: 1px solid rgba(0,0,0,0.1);
}
.marquee-track {
  display: flex; white-space: nowrap;
  animation: marquee 28s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px; font-weight: 800; letter-spacing: 2px;
  text-transform: uppercase; color: #000;
  padding: 0 32px;
}
.marquee-track span.dot::after { content: '·'; margin-left: 32px; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ══════════════════════════════════════════════
   STATS
   ══════════════════════════════════════════════ */
.stats { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item {
  padding: 52px 24px; text-align: center;
  border-right: 1px solid var(--border);
  position: relative;
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(40px,5vw,64px); font-weight: 900;
  color: var(--yellow); line-height: 1; margin-bottom: 8px;
}
.stat-label {
  font-size: 13px; font-weight: 500; color: var(--muted);
  text-transform: uppercase; letter-spacing: 1px;
}

/* ══════════════════════════════════════════════
   SERVICE CARDS
   ══════════════════════════════════════════════ */
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2px; }
.service-card {
  background: var(--surface);
  padding: 44px 36px;
  position: relative; overflow: hidden;
  transition: background 0.3s;
  border: 1px solid var(--border);
  border-radius: 0;
}
.service-card::before {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: var(--yellow);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s ease;
}
.service-card:hover { background: var(--card); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 56px; height: 56px; border-radius: 12px;
  background: var(--yellow-dim); border: 1px solid rgba(255,242,0,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--yellow);
  margin-bottom: 24px;
  transition: background 0.3s, transform 0.3s;
}
.service-card:hover .service-icon { background: rgba(255,242,0,0.15); transform: scale(1.05); }
.service-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 18px; font-weight: 800; color: #fff;
  margin-bottom: 12px; line-height: 1.2;
}
.service-desc { font-size: 14px; color: var(--muted); line-height: 1.7; }
.service-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 700; color: var(--yellow);
  margin-top: 20px; letter-spacing: 0.3px;
  transition: gap 0.2s;
}
.service-card:hover .service-link { gap: 12px; }

/* ══════════════════════════════════════════════
   PROJECT GALLERY
   ══════════════════════════════════════════════ */
.gallery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 3px; }
.gallery-item {
  position: relative; overflow: hidden;
  aspect-ratio: 4/3; cursor: pointer;
}
.gallery-item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.5s ease, transform 0.5s ease;
}
.gallery-item:hover img { filter: grayscale(0%); transform: scale(1.04); }
.gallery-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.35s ease;
  display: flex; align-items: flex-end; padding: 20px;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px; font-weight: 700; color: #fff;
  transform: translateY(10px); transition: transform 0.35s ease;
}
.gallery-tag {
  font-size: 11px; color: var(--yellow); display: block; margin-bottom: 4px;
  font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
}
.gallery-item:hover .gallery-label { transform: translateY(0); }

/* Gallery page filters */
.filter-bar {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap; margin-bottom: 36px;
}
.filter-btn {
  padding: 8px 18px; border-radius: 40px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border); color: var(--muted); background: var(--surface);
  transition: all 0.2s; cursor: pointer;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--yellow); color: #000; border-color: var(--yellow);
}

/* ══════════════════════════════════════════════
   WHY SOLTERIX
   ══════════════════════════════════════════════ */
.why-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; }
.why-item { text-align: center; }
.why-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--yellow-dim); border: 1px solid rgba(255,242,0,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--yellow);
  margin: 0 auto 20px;
}
.why-title { font-family: 'Montserrat', sans-serif; font-size: 16px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.why-desc  { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ══════════════════════════════════════════════
   CTA BANNER
   ══════════════════════════════════════════════ */
.cta-banner {
  background: var(--yellow); padding: 80px 0;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: 'SOLTERIX';
  position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
  font-family: 'Montserrat', sans-serif; font-size: 160px; font-weight: 900;
  color: rgba(0,0,0,0.06); white-space: nowrap; pointer-events: none;
  line-height: 1;
}
.cta-banner-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  position: relative; z-index: 1;
}
.cta-banner h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px,4vw,44px); font-weight: 900; color: #000;
  line-height: 1.1;
}
.cta-banner p { font-size: 16px; color: rgba(0,0,0,0.65); margin-top: 10px; }
.cta-banner-btns { display: flex; gap: 14px; flex-shrink: 0; }
.btn-black { background: #000; color: var(--yellow); border-color: #000; }
.btn-black:hover { background: transparent; color: #000; border-color: #000; }
.btn-outline-black { background: transparent; color: #000; border: 2px solid rgba(0,0,0,0.3); }
.btn-outline-black:hover { border-color: #000; }

/* ══════════════════════════════════════════════
   INSTAGRAM SECTION
   ══════════════════════════════════════════════ */
.instagram-strip { display: grid; grid-template-columns: repeat(6,1fr); gap: 3px; }
.ig-item {
  aspect-ratio: 1; overflow: hidden; position: relative;
}
.ig-item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(60%);
  transition: filter 0.4s, transform 0.4s;
}
.ig-item:hover img { filter: grayscale(0%); transform: scale(1.08); }
.ig-item a { display: block; width: 100%; height: 100%; position: relative; }
.ig-hover {
  position: absolute; inset: 0;
  background: rgba(255,242,0,0.15);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s;
}
.ig-item:hover .ig-hover { opacity: 1; }
.ig-hover i { font-size: 24px; color: #fff; }

/* ══════════════════════════════════════════════
   ABOUT PAGE
   ══════════════════════════════════════════════ */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-img { position: relative; }
.about-img img { width: 100%; border-radius: var(--radius); }
.about-img-badge {
  position: absolute; bottom: -20px; right: -20px;
  background: var(--yellow); color: #000;
  padding: 20px 24px; border-radius: var(--radius);
  text-align: center;
}
.about-img-badge .num { font-family: 'Montserrat', sans-serif; font-size: 40px; font-weight: 900; line-height: 1; }
.about-img-badge .lbl { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.about-text p { font-size: 16px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; }
.about-text p strong { color: #fff; }

.values-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.value-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px;
}
.value-num {
  font-family: 'Montserrat', sans-serif; font-size: 48px; font-weight: 900;
  color: var(--border); line-height: 1; margin-bottom: 16px;
}
.value-title { font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.value-desc  { font-size: 14px; color: var(--muted); line-height: 1.7; }

/* ══════════════════════════════════════════════
   CONTACT PAGE
   ══════════════════════════════════════════════ */
.contact-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: 60px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 32px; }
.contact-item { display: flex; gap: 18px; align-items: flex-start; }
.contact-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--yellow-dim); border: 1px solid rgba(255,242,0,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: var(--yellow); flex-shrink: 0;
}
.contact-item-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin-bottom: 4px; }
.contact-item-value { font-size: 16px; font-weight: 600; color: #fff; line-height: 1.5; }
.contact-item-value a { color: var(--yellow); }
.contact-item-value a:hover { text-decoration: underline; }

.contact-form {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 40px;
}
.contact-form h3 { font-family: 'Montserrat', sans-serif; font-size: 22px; font-weight: 800; margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.form-group:last-child { margin-bottom: 0; }
.form-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.form-control {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  color: #fff; font-size: 14px; font-family: inherit;
  padding: 13px 16px; outline: none;
  transition: border-color 0.2s;
  width: 100%;
}
.form-control:focus  { border-color: var(--yellow); }
.form-control::placeholder { color: var(--dim); }
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control option { background: var(--card); }
.form-submit { width: 100%; padding: 15px; font-size: 15px; }

/* ══════════════════════════════════════════════
   SERVICES DETAIL PAGE
   ══════════════════════════════════════════════ */
.service-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; margin-bottom: 100px; }
.service-detail:nth-child(even) .service-detail-img { order: -1; }
.service-detail-img img {
  width: 100%; border-radius: var(--radius);
  filter: grayscale(30%); transition: filter 0.5s;
}
.service-detail-img:hover img { filter: grayscale(0%); }
.service-detail-tag { font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--yellow); margin-bottom: 12px; }
.service-detail h2 { font-family: 'Montserrat', sans-serif; font-size: 36px; font-weight: 900; color: #fff; margin-bottom: 16px; line-height: 1.1; }
.service-detail p  { font-size: 15px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; }
.service-bullets { display: flex; flex-direction: column; gap: 10px; margin: 20px 0; }
.service-bullet {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; color: var(--muted);
}
.service-bullet i { color: var(--yellow); font-size: 12px; margin-top: 4px; flex-shrink: 0; }

/* ══════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════ */
footer {
  background: #050505; border-top: 1px solid var(--border);
  padding: 72px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand {}
.footer-logo { height: 40px; margin-bottom: 20px; }
.footer-tagline { font-size: 14px; color: var(--muted); line-height: 1.7; max-width: 260px; }
.footer-social { display: flex; gap: 12px; margin-top: 24px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--muted);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.social-btn:hover { background: var(--yellow); color: #000; border-color: var(--yellow); }
.footer-col-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.5px;
  color: #fff; margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--yellow); }
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: 12px; }
.footer-contact-item i { color: var(--yellow); font-size: 14px; margin-top: 2px; flex-shrink: 0; }
.footer-contact-item span { font-size: 14px; color: var(--muted); line-height: 1.5; }
.footer-contact-item a { color: var(--yellow); }
.footer-bottom {
  margin-top: 60px; padding: 20px 0; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; color: var(--dim);
}
.footer-bottom span { color: var(--muted); }

/* ══════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid   { grid-template-columns: repeat(2,1fr); }
  .gallery-grid    { grid-template-columns: repeat(2,1fr); }
  .why-grid        { grid-template-columns: repeat(2,1fr); }
  .footer-grid     { grid-template-columns: 1fr 1fr; gap: 36px; }
  .stats-grid      { grid-template-columns: repeat(2,1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .contact-layout  { grid-template-columns: 1fr; }
  .about-intro     { grid-template-columns: 1fr; gap: 48px; }
  .service-detail  { grid-template-columns: 1fr; gap: 40px; }
  .service-detail:nth-child(even) .service-detail-img { order: 0; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .cta-banner-btns  { justify-content: center; }
}

@media (max-width: 768px) {
  :root { --section-py: 60px; --nav-h: 68px; }
  .nav { padding: 0 20px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .container { padding: 0 20px; }
  .services-grid   { grid-template-columns: 1fr; }
  .gallery-grid    { grid-template-columns: 1fr 1fr; }
  .instagram-strip { grid-template-columns: repeat(3,1fr); }
  .why-grid        { grid-template-columns: 1fr 1fr; }
  .footer-grid     { grid-template-columns: 1fr; }
  .stats-grid      { grid-template-columns: 1fr 1fr; }
  .page-hero       { height: 260px; padding-bottom: 40px; }
  .form-row        { grid-template-columns: 1fr; }
  .values-grid     { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .gallery-grid    { grid-template-columns: 1fr; }
  .instagram-strip { grid-template-columns: repeat(2,1fr); }
  .why-grid        { grid-template-columns: 1fr; }
  .stats-grid      { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
}