/* ═══════════════════════════════════════════
   METSAN METAL – Main Stylesheet
   Industrial · Dark · Premium
═══════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --clr-bg: #0d0f12;
  --clr-surface: #141820;
  --clr-surface2: #1a1f2b;
  --clr-border: rgba(255,255,255,0.07);
  --clr-accent: #e8820c;
  --clr-accent-light: #ffaa44;
  --clr-accent-dark: #b5620a;
  --clr-steel: #8faabf;
  --clr-white: #f4f6f8;
  --clr-muted: #8a95a3;
  --clr-success: #3dca7e;

  --ff-head: 'Barlow Condensed', sans-serif;
  --ff-body: 'Barlow', sans-serif;

  --nav-h: 72px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 40px rgba(0,0,0,0.45);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--clr-bg);
  color: var(--clr-white);
  font-family: var(--ff-body);
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* ── Container ── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section Basics ── */
.section { padding: 100px 0; }
.section-dark { background: var(--clr-surface); }
.section-tag {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(232,130,12,0.12);
  border: 1px solid rgba(232,130,12,0.25);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.section-desc {
  color: var(--clr-muted);
  font-size: 1.05rem;
  margin-top: 14px;
  max-width: 560px;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header .section-desc { margin-left: auto; margin-right: auto; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-accent);
  color: #fff;
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 15px 32px;
  border-radius: var(--radius);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,130,12,0.35);
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.18) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.55s ease;
}
.btn-primary:hover::after { transform: translateX(100%); }
.btn-primary:hover {
  background: var(--clr-accent-light);
  box-shadow: 0 6px 28px rgba(232,130,12,0.5);
  transform: translateY(-2px);
}
.btn-primary.full-width { width: 100%; justify-content: center; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid rgba(255,255,255,0.3);
  color: #fff;
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 13px 30px;
  border-radius: var(--radius);
  transition: var(--transition);
  backdrop-filter: blur(6px);
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

/* ═══════════ NAVBAR ═══════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(13,15,18,0.96);
  border-bottom: 1px solid var(--clr-border);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
#navbar.scrolled {
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
}
.navbar-logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  /* The logo has a dark/grey bg — make it look clean on the navbar */
  filter: drop-shadow(0 2px 8px rgba(232,130,12,0.25));
  transition: filter 0.3s ease, transform 0.3s ease;
}
.navbar-logo-img:hover {
  filter: drop-shadow(0 4px 16px rgba(232,130,12,0.55));
  transform: scale(1.04);
}
.logo-icon {
  font-size: 2rem;
  color: var(--clr-accent);
  animation: spin-slow 8s linear infinite;
  display: inline-block;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-main { font-size: 1.4rem; font-weight: 900; letter-spacing: 0.08em; }
.logo-sub { font-size: 0.65rem; font-weight: 600; letter-spacing: 0.3em; color: var(--clr-accent); }

nav { display: flex; align-items: center; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  font-family: var(--ff-head);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-steel);
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.07); }
.nav-cta {
  font-family: var(--ff-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--clr-accent);
  padding: 9px 20px;
  border-radius: 8px;
  margin-left: 10px;
  transition: var(--transition);
  box-shadow: 0 3px 14px rgba(232,130,12,0.4);
}
.nav-cta:hover { background: var(--clr-accent-light); transform: translateY(-1px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: #fff;
  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;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.05);
  animation: hero-zoom 14s ease-in-out infinite alternate;
}
@keyframes hero-zoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.12); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13,15,18,0.88) 0%,
    rgba(13,15,18,0.72) 50%,
    rgba(232,130,12,0.12) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--ff-head);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  border: 1px solid rgba(232,130,12,0.3);
  background: rgba(232,130,12,0.1);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fade-in-up 0.6s ease both;
}
.hero-title {
  display: flex;
  flex-direction: column;
  font-family: var(--ff-head);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero-title-top {
  font-size: clamp(3.2rem, 8vw, 6.5rem);
  color: var(--clr-white);
  animation: fade-in-up 0.6s 0.1s ease both;
}
.hero-title-bot {
  font-size: clamp(3.2rem, 8vw, 6.5rem);
  color: var(--clr-accent);
  -webkit-text-stroke: 2px var(--clr-accent);
  animation: fade-in-up 0.6s 0.2s ease both;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(244,246,248,0.8);
  max-width: 560px;
  margin-bottom: 36px;
  animation: fade-in-up 0.6s 0.3s ease both;
}
.hero-desc strong { color: var(--clr-accent); }
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 56px;
  animation: fade-in-up 0.6s 0.4s ease both;
}
.hero-stats {
  display: flex;
  gap: 0;
  align-items: center;
  animation: fade-in-up 0.6s 0.5s ease both;
}
.stat { text-align: center; padding: 0 32px; }
.stat:first-child { padding-left: 0; }
.stat-num {
  font-family: var(--ff-head);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--clr-accent);
  line-height: 1;
}
.stat-plus { font-family: var(--ff-head); font-size: 1.8rem; font-weight: 700; color: var(--clr-accent); }
.stat-label { display: block; font-size: 0.8rem; font-weight: 500; color: var(--clr-muted); letter-spacing: 0.05em; margin-top: 4px; }
.stat-divider { width: 1px; height: 50px; background: rgba(255,255,255,0.15); }

.scroll-down {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
}
.scroll-arrow {
  display: block;
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,0.5);
  border-bottom: 2px solid rgba(255,255,255,0.5);
  transform: rotate(45deg);
  animation: bounce-arrow 1.6s ease-in-out infinite;
}
@keyframes bounce-arrow {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.8; }
  50% { transform: rotate(45deg) translateY(6px); opacity: 1; }
}

/* ═══════════ MARQUEE ═══════════ */
.marquee-wrapper {
  background: var(--clr-accent);
  overflow: hidden;
  padding: 14px 0;
}
.marquee-track {
  display: flex;
  gap: 0;
  white-space: nowrap;
  animation: marquee 28s linear infinite;
}
.marquee-track span {
  font-family: var(--ff-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #fff;
  padding: 0 24px;
}
.marquee-track .dot { color: rgba(255,255,255,0.5); padding: 0 8px; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ═══════════ ABOUT ═══════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform 0.6s ease;
}
.about-img-wrap:hover .about-img { transform: scale(1.04); }
.about-badge-card {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(13,15,18,0.92);
  border: 1px solid var(--clr-border);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}
.badge-icon { font-size: 2rem; }
.about-badge-card strong { display: block; font-size: 0.95rem; font-weight: 700; }
.about-badge-card small { color: var(--clr-muted); font-size: 0.78rem; }

.about-text .section-title { margin-bottom: 20px; }
.about-text p { color: var(--clr-muted); margin-bottom: 16px; }
.about-text p strong { color: var(--clr-accent); }
.about-list { margin: 24px 0 32px; display: flex; flex-direction: column; gap: 12px; }
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--clr-white);
}
.list-icon {
  color: var(--clr-accent);
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(232,130,12,0.12);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ═══════════ PRODUCTS ═══════════ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.product-card:hover {
  border-color: rgba(232,130,12,0.3);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.product-img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.08); }
.product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,15,18,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.product-card:hover .product-overlay { opacity: 1; }
.product-cta-btn {
  font-family: var(--ff-head);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--clr-accent);
  padding: 12px 26px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.product-cta-btn:hover { background: var(--clr-accent-light); }
.product-body { padding: 24px; }
.product-tag {
  font-family: var(--ff-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  display: block;
  margin-bottom: 10px;
}
.product-body h3 {
  font-family: var(--ff-head);
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.product-body p { color: var(--clr-muted); font-size: 0.9rem; margin-bottom: 16px; }
.product-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.product-features li {
  font-size: 0.82rem;
  color: var(--clr-muted);
  padding-left: 16px;
  position: relative;
}
.product-features li::before {
  content: '▸';
  color: var(--clr-accent);
  position: absolute;
  left: 0;
}

/* ═══════════ WHY US ═══════════ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.why-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transition: transform 0.35s ease;
}
.why-card:hover::before { transform: scaleX(1); }
.why-card:hover {
  border-color: rgba(232,130,12,0.25);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}
.why-icon {
  font-size: 2.4rem;
  margin-bottom: 18px;
  display: inline-block;
  transition: transform 0.3s ease;
}
.why-card:hover .why-icon { transform: scale(1.15) rotate(-5deg); }
.why-card h3 {
  font-family: var(--ff-head);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.why-card p { color: var(--clr-muted); font-size: 0.9rem; }

/* ═══════════ CONTACT ═══════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: var(--transition);
}
.contact-card:hover { border-color: rgba(232,130,12,0.3); transform: translateX(4px); }
.contact-icon {
  font-size: 1.6rem;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232,130,12,0.1);
  border-radius: 10px;
  flex-shrink: 0;
  color: var(--clr-accent);
}
.contact-card strong { display: block; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.05em; color: var(--clr-muted); text-transform: uppercase; margin-bottom: 3px; }
.contact-card a, .contact-card span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-white);
  transition: color 0.2s;
}
.contact-card a:hover { color: var(--clr-accent); }
.instagram-big-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045);
  color: #fff;
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px;
  border-radius: var(--radius);
  margin-top: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(253,29,29,0.3);
}
.instagram-big-btn:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(253,29,29,0.45); }

/* Contact Form */
.contact-form {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--clr-white);
  font-family: var(--ff-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  appearance: auto;
}
.form-group select { color: var(--clr-white); background: var(--clr-surface2); }
.form-group select option { background: var(--clr-surface2); color: var(--clr-white); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(232,130,12,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.25); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-note { font-size: 0.78rem; color: var(--clr-muted); margin-top: 10px; text-align: center; }
.form-success {
  margin-top: 16px;
  background: rgba(61,202,126,0.12);
  border: 1px solid rgba(61,202,126,0.3);
  border-radius: 10px;
  padding: 14px 18px;
  color: var(--clr-success);
  font-weight: 600;
  text-align: center;
  animation: fade-in 0.4s ease;
}

/* ═══════════ FOOTER ═══════════ */
#footer {
  background: #080a0d;
  border-top: 1px solid var(--clr-border);
  padding: 48px 24px;
  text-align: center;
}
.footer-inner { max-width: 1180px; margin: 0 auto; }
.footer-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.footer-logo-img {
  height: 90px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 18px rgba(232,130,12,0.3));
  transition: filter 0.3s ease;
}
.footer-logo-img:hover {
  filter: drop-shadow(0 6px 24px rgba(232,130,12,0.55));
}
.footer-tagline {
  color: var(--clr-muted);
  font-size: 0.88rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-bottom: 28px;
}
.footer-links a {
  font-family: var(--ff-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--clr-accent); }
.footer-copy { font-size: 0.78rem; color: rgba(138,149,163,0.5); }

/* ═══════════ CHATBOT ═══════════ */
.chatbot-launcher {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 900;
  width: 60px;
  height: 60px;
  background: var(--clr-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 6px 30px rgba(232,130,12,0.55);
  transition: var(--transition);
  animation: pulse-ring 2.5s ease-in-out infinite;
}
.chatbot-launcher:hover { transform: scale(1.1); background: var(--clr-accent-light); }
.chat-icon { font-size: 1.7rem; }
.chat-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #e84040;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--clr-bg);
}
@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232,130,12,0.5), 0 6px 30px rgba(232,130,12,0.55); }
  50% { box-shadow: 0 0 0 14px rgba(232,130,12,0), 0 6px 30px rgba(232,130,12,0.55); }
}

.chatbot-window {
  position: fixed;
  bottom: 104px;
  right: 30px;
  z-index: 900;
  width: 360px;
  max-height: 520px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.85) translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s ease;
}
.chatbot-window.open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}
.chatbot-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: linear-gradient(135deg, var(--clr-accent-dark), var(--clr-accent));
  flex-shrink: 0;
}
.chatbot-avatar {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.chatbot-info { flex: 1; }
.chatbot-info strong { display: block; font-size: 0.9rem; font-weight: 700; }
.chatbot-info small { font-size: 0.75rem; opacity: 0.85; }
.online-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #4dfa8e;
  border-radius: 50%;
  margin-right: 5px;
  animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.4} }
.chatbot-close {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.chatbot-close:hover { background: rgba(255,255,255,0.3); }

.chatbot-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.chatbot-body::-webkit-scrollbar { width: 4px; }
.chatbot-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.chat-msg {
  display: flex;
  gap: 8px;
  animation: fade-in 0.25s ease;
}
.chat-msg.bot { align-items: flex-start; }
.chat-msg.user { flex-direction: row-reverse; }
.msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.msg-bubble {
  max-width: 240px;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.88rem;
  line-height: 1.5;
}
.chat-msg.bot .msg-bubble {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-top-left-radius: 4px;
  color: var(--clr-white);
}
.chat-msg.user .msg-bubble {
  background: var(--clr-accent);
  color: #fff;
  border-top-right-radius: 4px;
}
.typing-dots span {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--clr-muted);
  border-radius: 50%;
  animation: dot-bounce 1.2s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot-bounce {
  0%,80%,100%{transform:translateY(0)} 40%{transform:translateY(-6px)}
}

.chatbot-quick {
  padding: 8px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  flex-shrink: 0;
}
.quick-btn {
  font-family: var(--ff-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--clr-accent);
  border: 1px solid rgba(232,130,12,0.3);
  background: rgba(232,130,12,0.08);
  padding: 5px 12px;
  border-radius: 100px;
  transition: var(--transition);
  white-space: nowrap;
}
.quick-btn:hover { background: rgba(232,130,12,0.2); border-color: var(--clr-accent); }

.chatbot-input-row {
  display: flex;
  gap: 8px;
  padding: 14px;
  flex-shrink: 0;
}
#chatbot-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--clr-white);
  font-family: var(--ff-body);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s;
}
#chatbot-input:focus { border-color: var(--clr-accent); }
#chatbot-input::placeholder { color: rgba(255,255,255,0.25); }
#chatbot-send {
  width: 40px;
  height: 40px;
  background: var(--clr-accent);
  color: #fff;
  border-radius: 10px;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
#chatbot-send:hover { background: var(--clr-accent-light); transform: scale(1.05); }

/* ═══════════ BACK TO TOP ═══════════ */
.back-top {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 800;
  width: 44px;
  height: 44px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  color: var(--clr-white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.back-top.visible { opacity: 1; pointer-events: all; }
.back-top:hover { background: var(--clr-accent); border-color: var(--clr-accent); transform: translateY(-3px); }

/* ═══════════ ANIMATIONS ═══════════ */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal-up, .reveal-left, .reveal-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.revealed {
  opacity: 1 !important;
  transform: translate(0,0) !important;
}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-img { height: 380px; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .products-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(13,15,18,0.98);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    transform: translateY(-110%);
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--clr-border);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-cta { margin-left: 0; width: 100%; text-align: center; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 60px; height: 1px; }
  .stat { padding: 0; }
  .products-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .chatbot-window { width: calc(100vw - 40px); right: 20px; }
  .contact-form { padding: 24px 20px; }
}
@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}