:root {
  --color-black: #0B0B0D;
  --color-black-soft: #151217;
  --color-black-card: #1D1A20;
  --color-gold: #F5B700;
  --color-gold-deep: #D4A017;
  --color-gold-soft: #F7D774;
  --color-cream: #FFF8E7;
  --color-cream-card: #FFFFFF;
  --color-text-light: #F5F1E8;
  --color-text-muted: #B8B2A6;
  --color-text-dark: #1A1712;
  --color-text-dark-muted: #6B6558;
  --shadow-gold: 0 8px 24px rgba(245, 183, 0, 0.25);
  --radius: 14px;
  --max-width: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

a { text-decoration: none; color: inherit; }

button { font-family: inherit; cursor: pointer; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow { max-width: 780px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold) 55%, var(--color-gold-deep));
  color: var(--color-black);
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(245, 183, 0, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-gold-soft);
  border: 1.5px solid var(--color-gold);
}

.btn-outline:hover {
  background: rgba(245, 183, 0, 0.1);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-text-dark);
  border: 1.5px solid var(--color-text-dark);
}

.btn-outline-dark:hover {
  background: var(--color-text-dark);
  color: var(--color-cream);
}

.btn-lg { padding: 16px 34px; font-size: 17px; }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-block { width: 100%; }

.icon-inline { width: 18px; height: 18px; fill: currentColor; }

.highlight { color: var(--color-gold); }

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 13, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(245, 183, 0, 0.12);
  transition: background 0.3s ease;
}

.navbar.scrolled {
  background: rgba(11, 11, 13, 0.95);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  display: inline-flex;
  align-items: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text-light);
  letter-spacing: 0.5px;
  background: var(--color-cream);
  padding: 7px 16px;
  border-radius: 10px;
}

.logo span { color: var(--color-gold); }

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.logo .logo-img {
  height: 36px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--color-gold); }

.navbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(245, 183, 0, 0.08);
  border: 1px solid rgba(245, 183, 0, 0.2);
  border-radius: 999px;
  padding: 3px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 12.5px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-btn:hover { color: var(--color-text-light); }

.lang-btn.active {
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold-deep));
  color: var(--color-black);
}

/* Hero */
.hero {
  padding: 72px 0 96px;
  background:
    radial-gradient(circle at 15% 20%, rgba(245, 183, 0, 0.12), transparent 45%),
    linear-gradient(100deg, rgba(11, 11, 13, 0.98) 0%, rgba(11, 11, 13, 0.94) 35%, rgba(11, 11, 13, 0.55) 65%, rgba(11, 11, 13, 0.35) 100%),
    url("../images/hero-banner.jpg");
  background-size: auto, cover, cover;
  background-position: center, center 25%, center 25%;
  background-repeat: no-repeat;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--color-gold);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.hero-text h1 {
  font-size: 44px;
  line-height: 1.25;
  margin: 0 0 20px;
  font-weight: 800;
}

.hero-sub {
  font-size: 17px;
  color: var(--color-text-muted);
  margin: 0 0 20px;
  max-width: 480px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 183, 0, 0.1);
  border: 1px solid rgba(245, 183, 0, 0.35);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-gold-soft);
  margin: 0 0 28px;
}

.hero-badge .icon-inline {
  width: 16px;
  height: 16px;
  fill: var(--color-gold);
  flex-shrink: 0;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.trust-stats {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 28px;
}

.trust-item { display: flex; flex-direction: column; }

.trust-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-gold);
}

.trust-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Hero card / calculator */
.hero-card {
  position: relative;
  background: var(--color-black-card);
  border: 1px solid rgba(245, 183, 0, 0.2);
  border-radius: 20px;
  padding: 32px;
  overflow: hidden;
}

.hero-card-glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(245, 183, 0, 0.35), transparent 70%);
  pointer-events: none;
}

.hero-card h3 {
  margin: 0 0 6px;
  font-size: 19px;
  position: relative;
}

.hero-card-desc {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 24px;
  position: relative;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  position: relative;
}

.slider-label .highlight {
  font-weight: 700;
  color: var(--color-gold);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(245, 183, 0, 0.18);
  margin-bottom: 22px;
  position: relative;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(245, 183, 0, 0.2);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--color-gold);
  cursor: pointer;
}

.hero-card-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(245, 183, 0, 0.08);
  border: 1px solid rgba(245, 183, 0, 0.25);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 10px;
  position: relative;
}

.hero-card-result span { color: var(--color-text-muted); font-size: 14px; }
.hero-card-result strong { color: var(--color-gold); font-size: 22px; }

.hero-card-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0 0 20px;
  position: relative;
}

/* Section generic */
.section { padding: 88px 0; }
.section-dark { background: var(--color-black); }
.section-black { background: var(--color-black-soft); }
.section-cream { background: var(--color-cream); }

.section-eyebrow {
  color: var(--color-gold-deep);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0 0 12px;
  text-align: center;
}

.section-cream .section-eyebrow,
.section-form .section-eyebrow { color: var(--color-gold-deep); }

.section-title {
  font-size: 32px;
  font-weight: 800;
  text-align: center;
  margin: 0 0 56px;
  color: var(--color-text-light);
}

.section-title-dark { color: var(--color-text-dark); }

/* Grids */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Feature cards */
.feature-card {
  background: var(--color-black-card);
  border: 1px solid rgba(245, 183, 0, 0.12);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 183, 0, 0.4);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold-deep));
  margin-bottom: 18px;
}

.feature-icon svg { width: 24px; height: 24px; fill: var(--color-black); }

.feature-card h3 { margin: 0 0 10px; font-size: 18px; }
.feature-card p { margin: 0; color: var(--color-text-muted); font-size: 14.5px; }

/* Product cards */
.product-card {
  background: var(--color-cream-card);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.product-photo {
  display: block;
  width: calc(100% + 48px);
  height: 170px;
  object-fit: cover;
  object-position: center center;
  margin: -28px -24px 18px;
}

.product-photo--face {
  object-position: center 18%;
}

.product-photo-placeholder {
  width: calc(100% + 48px);
  height: 170px;
  margin: -28px -24px 18px;
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold-deep));
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-photo-placeholder svg { width: 44px; height: 44px; fill: var(--color-black); opacity: 0.55; }

.product-card h3 { margin: 0 0 8px; color: var(--color-text-dark); font-size: 18px; }

.product-desc {
  color: var(--color-text-dark-muted);
  font-size: 14px;
  margin: 0 0 20px;
  flex-grow: 1;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  border-top: 1px dashed rgba(0,0,0,0.1);
  padding: 10px 0;
  font-size: 13.5px;
  color: var(--color-text-dark-muted);
}

.product-meta strong { color: var(--color-gold-deep); font-size: 15px; }

.product-card .btn { margin-top: 16px; }

/* Steps */
.process-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 44px;
  align-items: center;
}

.process-image img {
  width: 100%;
  display: block;
  border-radius: 20px;
  border: 1px solid rgba(245, 183, 0, 0.2);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.process-inner .steps {
  grid-template-columns: repeat(2, 1fr);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--color-black-card);
  border: 1px solid rgba(245, 183, 0, 0.12);
  border-radius: var(--radius);
  padding: 30px 24px;
  position: relative;
}

.step-num {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--color-gold);
  opacity: 0.5;
  margin-bottom: 12px;
}

.step-card h3 { margin: 0 0 8px; font-size: 17px; }
.step-card p { margin: 0; color: var(--color-text-muted); font-size: 14px; }

/* Trust band */
.trust-band-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.trust-band-item {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(245, 183, 0, 0.15);
  position: relative;
}

.trust-band-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
}

.trust-band-item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 20px 16px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  color: var(--color-gold-soft);
  font-weight: 600;
  font-size: 14.5px;
}

/* Testimonials */
.testimonial-card {
  background: var(--color-black-card);
  border: 1px solid rgba(245, 183, 0, 0.12);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.testimonial-card p {
  color: var(--color-text-light);
  font-size: 14.5px;
  flex-grow: 1;
  margin: 0 0 22px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-black);
  flex-shrink: 0;
}

.testimonial-author strong { display: block; font-size: 14px; }
.testimonial-author span { font-size: 12.5px; color: var(--color-text-muted); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; }

.faq-item {
  background: var(--color-cream-card);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 22px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--color-text-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: "+";
  font-size: 20px;
  color: var(--color-gold-deep);
  transition: transform 0.25s ease;
  margin-left: 12px;
}

.faq-item.open .faq-question::after { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 22px 18px;
  color: var(--color-text-dark-muted);
  font-size: 14.5px;
  line-height: 1.7;
}

/* Form */
.section-form { background: var(--color-cream); padding-bottom: 110px; }

.form-card {
  background: var(--color-cream-card);
  border-radius: 20px;
  padding: 48px 44px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.08);
}

.form-sub {
  text-align: center;
  color: var(--color-text-dark-muted);
  margin: 0 0 36px;
  font-size: 14.5px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group { display: flex; flex-direction: column; }
.form-group-full { grid-column: 1 / -1; }

.form-group label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.req { color: #C0392B; }

.form-group input,
.form-group select {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid rgba(0,0,0,0.12);
  font-size: 14.5px;
  font-family: inherit;
  background: #fff;
  color: var(--color-text-dark);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(245, 183, 0, 0.18);
}

.form-group.has-error input,
.form-group.has-error select {
  border-color: #C0392B;
}

.error-msg {
  color: #C0392B;
  font-size: 12.5px;
  min-height: 16px;
  margin-top: 4px;
}

.form-privacy {
  text-align: center;
  font-size: 12.5px;
  color: var(--color-text-dark-muted);
  margin: 16px 0 0;
}

.form-success {
  text-align: center;
  background: rgba(245, 183, 0, 0.12);
  border: 1px solid rgba(245, 183, 0, 0.4);
  color: var(--color-text-dark);
  padding: 20px;
  border-radius: 12px;
  margin-top: 24px;
  font-weight: 600;
}

/* Floating WhatsApp */
.fab-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(245, 183, 0, 0.45);
  z-index: 200;
  transition: transform 0.2s ease;
}

.fab-whatsapp:hover { transform: scale(1.08); }
.fab-whatsapp svg { width: 28px; height: 28px; fill: var(--color-black); }

/* Footer */
.footer {
  background: var(--color-black);
  border-top: 1px solid rgba(245, 183, 0, 0.12);
  padding: 56px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 13.5px;
  margin-top: 14px;
}

.footer h4 {
  font-size: 14px;
  color: var(--color-gold);
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-contact p,
.footer-disclaimer p {
  color: var(--color-text-muted);
  font-size: 13.5px;
  margin: 0 0 8px;
  line-height: 1.7;
}

.footer-contact a:hover { color: var(--color-gold); }

.footer-bottom {
  border-top: 1px solid rgba(245, 183, 0, 0.1);
  text-align: center;
  padding: 20px 0;
}

.footer-bottom p {
  margin: 0;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .process-inner { grid-template-columns: 1fr; }
  .process-image img { max-height: 320px; object-fit: cover; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-text h1 { font-size: 32px; }
  .grid-3 { grid-template-columns: 1fr; }
  .trust-stats { grid-template-columns: repeat(2, auto); row-gap: 20px; }
  .trust-band-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 32px 22px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 26px; margin-bottom: 40px; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .grid-4 { grid-template-columns: 1fr; }
  .logo { font-size: 18px; padding: 5px 10px; }
  .logo-img { height: 30px; }
  .logo .logo-img { height: 26px; }
  .navbar-right { gap: 8px; }
  .lang-btn { padding: 5px 8px; font-size: 11.5px; }
  .whatsapp-link span { display: none; }
  .whatsapp-link { padding: 12px; }
}