/* ===== Bluepu Home — Brand Website Stylesheet ===== */

:root {
  --navy: #1B3A5C;
  --navy-light: #2A4F7A;
  --gold: #C9A96E;
  --gold-light: #D4BC8E;
  --white: #FFFFFF;
  --off-white: #F8F6F3;
  --gray-100: #F3F1EE;
  --gray-200: #E8E5E0;
  --gray-400: #A09A90;
  --gray-600: #6B6560;
  --gray-800: #3A3530;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --max-width: 1200px;
  --section-pad: 100px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== Typography ===== */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.3rem; }
p { color: var(--gray-600); }

.section-label {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 3px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 12px;
}
.section-title { margin-bottom: 20px; }
.section-desc {
  max-width: 600px;
  margin: 0 auto 60px;
  font-size: 1.05rem;
  color: var(--gray-400);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--gold);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 169, 110, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-amazon {
  background: #FF9900;
  color: var(--white);
}
.btn-amazon:hover {
  background: #E88B00;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 153, 0, 0.3);
}
.btn-small {
  padding: 10px 22px;
  font-size: 0.85rem;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo img { height: 32px; }
.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
  letter-spacing: 0.3px;
}
.nav-links a:hover { color: var(--navy); }
.nav-cta { margin-left: 12px; }
.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
  padding: 160px 24px var(--section-pad);
  background: linear-gradient(160deg, var(--off-white) 0%, var(--white) 50%, var(--gray-100) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 110, 0.08) 0%, transparent 70%);
}
.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}
.hero h1 { margin-bottom: 24px; }
.hero h1 span { color: var(--gold); }
.hero p {
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto 40px;
  color: var(--gray-400);
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-trust {
  margin-top: 60px;
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-trust-item {
  text-align: center;
}
.hero-trust-item .number {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
}
.hero-trust-item .label {
  font-size: 0.8rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== About ===== */
.about {
  padding: var(--section-pad) 24px;
  background: var(--white);
}
.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image {
  background: var(--off-white);
  border-radius: 16px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.about-image-placeholder {
  color: var(--gray-400);
  font-size: 0.9rem;
  text-align: center;
  padding: 40px;
}
.about-image-placeholder svg {
  width: 80px;
  height: 80px;
  margin-bottom: 16px;
  opacity: 0.4;
}
.about-content .section-label { text-align: left; }
.about-content h2 { margin-bottom: 24px; }
.about-content p { margin-bottom: 16px; font-size: 1.05rem; }
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}
.about-value {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.about-value-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.about-value-icon svg {
  width: 20px;
  height: 20px;
  color: var(--gold);
}
.about-value h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 2px;
}
.about-value p {
  font-size: 0.82rem;
  color: var(--gray-400);
  margin: 0;
}

/* ===== Products ===== */
.products {
  padding: var(--section-pad) 24px;
  background: var(--off-white);
  text-align: center;
}
.products-inner { max-width: var(--max-width); margin: 0 auto; }
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}
.product-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  text-align: left;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(27, 58, 92, 0.08);
}
.product-image {
  aspect-ratio: 1;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-image-placeholder {
  color: var(--gray-400);
  font-size: 0.85rem;
  text-align: center;
  padding: 20px;
}
.product-image-placeholder svg {
  width: 60px;
  height: 60px;
  margin-bottom: 12px;
  opacity: 0.3;
}
.product-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.product-info { padding: 24px; }
.product-info h3 {
  margin-bottom: 8px;
  font-family: var(--font-main);
  font-weight: 600;
}
.product-info p {
  font-size: 0.9rem;
  margin-bottom: 16px;
  color: var(--gray-400);
}
.product-price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}
.product-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gray-400);
  text-decoration: line-through;
  margin-left: 8px;
}

/* ===== Why Choose Us ===== */
.features {
  padding: var(--section-pad) 24px;
  background: var(--white);
  text-align: center;
}
.features-inner { max-width: var(--max-width); margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}
.feature-card { padding: 40px 24px; text-align: center; }
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}
.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--gold);
}
.feature-card h3 {
  margin-bottom: 12px;
  font-family: var(--font-main);
  font-weight: 600;
}
.feature-card p { font-size: 0.92rem; color: var(--gray-400); }

/* ===== CTA Banner ===== */
.cta-banner {
  padding: 80px 24px;
  background: var(--navy);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 110, 0.15) 0%, transparent 70%);
}
.cta-banner h2 {
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
}
.cta-banner p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 500px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
  position: relative;
}
.cta-banner .btn { position: relative; }

/* ===== Contact ===== */
.contact {
  padding: var(--section-pad) 24px;
  background: var(--off-white);
  text-align: center;
}
.contact-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  text-align: left;
}
.contact-info .section-label { text-align: left; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { margin-bottom: 32px; font-size: 1.05rem; }
.contact-methods { display: flex; flex-direction: column; gap: 24px; }
.contact-method {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-method-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-method-icon svg {
  width: 20px;
  height: 20px;
  color: var(--gold);
}
.contact-method h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}
.contact-method p { font-size: 0.9rem; margin: 0; }
.contact-method a { color: var(--gold); font-weight: 500; }
.contact-method a:hover { text-decoration: underline; }

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--gray-800);
  transition: border-color 0.2s;
  background: var(--white);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form .btn { width: 100%; justify-content: center; }

/* ===== Footer ===== */
.footer {
  padding: 60px 24px 30px;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.5);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
}
.footer-brand img {
  height: 28px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  font-size: 0.9rem;
  padding: 6px 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  max-width: var(--max-width);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}
.footer-bottom a { margin-left: 24px; transition: color 0.2s; }
.footer-bottom a:hover { color: var(--gold); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  :root { --section-pad: 70px; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-image { max-height: 300px; }
  .contact-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  }
  .hero { padding: 120px 24px 70px; }
  .about-values { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}