* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #ff6b35;
  --secondary: #ffc857;
  --dark: #1a1a2e;
  --darker: #0f0f1a;
  --light: #f0f0f0;
  --accent: #4ecdc4;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--darker);
  color: var(--light);
  overflow-x: hidden;
}

/* Navigation */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 2rem;
  transition: background 0.3s;
}

#navbar.scrolled {
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--light);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

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

.btn-nav {
  background: var(--primary);
  padding: 0.5rem 1.2rem;
  border-radius: 25px;
  color: white !important;
}

/* Hero */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  padding: 6rem 2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.hero-content {
  flex: 1;
  min-width: 300px;
}

.hero-content h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1;
  letter-spacing: 3px;
}

.highlight {
  color: var(--primary);
  text-shadow: 0 0 40px rgba(255, 107, 53, 0.4);
}

.tagline {
  font-size: 1.3rem;
  margin: 1.5rem 0 2rem;
  color: #ccc;
  max-width: 500px;
  line-height: 1.6;
}

.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

/* Interactive Cup */
.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 250px;
}

.cup-placeholder {
  cursor: pointer;
  transition: transform 0.3s;
  text-align: center;
}

.cup-placeholder:hover {
  transform: scale(1.05);
}

.click-label {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #888;
  font-weight: 600;
  letter-spacing: 1px;
}

.cup-body {
  position: relative;
  width: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cup-top {
  width: 140px;
  height: 30px;
  background: linear-gradient(135deg, var(--accent), #3ab5ad);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  position: relative;
  z-index: 2;
}

.cup-top.pinched {
  width: 60px;
  border-radius: 30%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
}

.pinch-hint {
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.cup-top.pinched .pinch-hint {
  opacity: 0;
}

.cup-middle {
  width: 150px;
  height: 200px;
  background: linear-gradient(180deg, var(--accent), #2a9d8f);
  border-radius: 10px 10px 30px 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -10px;
  clip-path: polygon(5% 0%, 95% 0%, 100% 100%, 0% 100%);
}

.cup-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  text-align: center;
  color: white;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.cup-bottom {
  width: 120px;
  height: 15px;
  background: #1f7a72;
  border-radius: 0 0 50% 50%;
  margin-top: -2px;
}

/* Product Showcase */
.product-showcase {
  display: flex;
  align-items: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.product-hero-img {
  flex: 1;
  min-width: 250px;
  max-width: 400px;
  width: 100%;
  object-fit: contain;
  border-radius: 20px;
  filter: drop-shadow(0 20px 40px rgba(255, 107, 53, 0.2));
}

.product-info {
  flex: 1;
  min-width: 300px;
}

.product-specs {
  list-style: none;
  margin-top: 1.5rem;
}

.product-specs li {
  padding: 0.75rem 0;
  font-size: 1.1rem;
  color: #ccc;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  line-height: 1.5;
}

.product-specs li strong {
  color: var(--light);
}

/* Sections Common */
section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  text-align: center;
  letter-spacing: 2px;
  color: var(--secondary);
}

.section-subtitle {
  text-align: center;
  color: #aaa;
  font-size: 1.1rem;
  margin-top: 0.5rem;
  margin-bottom: 3rem;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step {
  text-align: center;
  padding: 2rem;
  background: var(--dark);
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: transform 0.3s;
}

.step:hover {
  transform: translateY(-5px);
}

.step-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.step h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.step p {
  color: #bbb;
  line-height: 1.6;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  padding: 2rem;
  background: linear-gradient(145deg, var(--dark), rgba(26,26,46,0.5));
  border-radius: 20px;
  border: 1px solid rgba(255, 107, 53, 0.1);
  transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--secondary);
}

.feature-card p {
  color: #bbb;
  line-height: 1.5;
}

/* Color Change Demo */
.color-change-demo {
  text-align: center;
  margin-top: 4rem;
  padding: 3rem;
  background: var(--dark);
  border-radius: 20px;
  border: 1px solid rgba(78, 205, 196, 0.2);
}

.color-change-demo h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.color-change-demo p {
  color: #aaa;
  margin-bottom: 1.5rem;
}

.color-change-demo img {
  max-width: 600px;
  width: 100%;
  border-radius: 15px;
  filter: drop-shadow(0 10px 30px rgba(78, 205, 196, 0.15));
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.design-card {
  text-align: center;
  transition: transform 0.3s;
}

.design-card:hover {
  transform: scale(1.05);
}

.design-img {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 20px;
  overflow: hidden;
}

.design-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
}

.design-name {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--accent);
}

/* CTA */
#cta {
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(255, 107, 53, 0.05));
  border-radius: 30px;
  padding: 5rem 2rem;
}

.cta-content h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: var(--primary);
}

.cta-content p {
  color: #aaa;
  margin: 1rem 0 2rem;
  font-size: 1.1rem;
}

.btn-amazon {
  display: inline-block;
  background: #ff9900;
  color: #111;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  transition: transform 0.3s, box-shadow 0.3s;
  margin-bottom: 0.5rem;
}

.btn-amazon:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 153, 0, 0.4);
}

.amazon-note {
  font-size: 0.85rem !important;
  margin-bottom: 2rem !important;
  color: #888 !important;
}

#waitlist-form {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

#waitlist-form input {
  padding: 1rem 1.5rem;
  border-radius: 50px;
  border: 2px solid rgba(255,255,255,0.1);
  background: var(--dark);
  color: white;
  font-size: 1rem;
  min-width: 250px;
  outline: none;
  transition: border-color 0.3s;
}

#waitlist-form input:focus {
  border-color: var(--primary);
}

.form-note {
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 600;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: #666;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  #hero { flex-direction: column; text-align: center; gap: 2rem; }
  .tagline { margin: 1rem auto 2rem; }
  .product-showcase { flex-direction: column; text-align: center; }
}