@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('variables.css');
@import url('components.css');

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-surface);
  color: var(--color-text-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
}

.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-gradient) 100%);
  transition: background var(--theme-transition);
  overflow: hidden;
  padding-top: var(--nav-height);
  min-height: 100dvh;
}

.carousel-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  z-index: 1;
}

.carousel-slide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: var(--space-7) var(--space-9);
  gap: var(--space-6);
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.carousel-slide.active {
  opacity: 1;
  pointer-events: none;
  position: relative;
  height: auto;
  min-height: calc(100dvh - var(--nav-height));
}

.carousel-slide.active .hero-content {
  pointer-events: auto;
}

.carousel-slide.active .hero-visual {
  pointer-events: auto;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 540px;
  margin-right: var(--space-5);
}

.benefits-list {
  display: flex;
  gap: var(--space-2);
  list-style: none;
  flex-wrap: wrap;
}

.hero-controls {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-top: var(--space-1);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.benefits-section {
  padding: var(--space-8) var(--space-9) var(--space-7);
  max-width: 1200px;
  margin: 0 auto;
}

.how-section {
  padding: var(--space-7) var(--space-9);
  max-width: 1200px;
  margin: 0 auto;
}

.site-footer {
  background: var(--color-surface);
}

@keyframes float-deco {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%      { transform: translateY(-12px) rotate(4deg); }
  66%      { transform: translateY(-5px) rotate(-2deg); }
}

@keyframes float-fruit {
  0%, 100% { transform: translateY(0px); }
  50%      { transform: translateY(-10px); }
}

.deco-circle {
  animation: float-deco 5s ease-in-out infinite;
  animation-delay: var(--deco-delay, 0s);
}

.fruit-visual {
  animation: float-fruit 4s ease-in-out infinite;
  animation-delay: var(--deco-delay, 0s);
}

@media (min-width: 1025px) {
  .parallax-section {
    height: 100vh;
    min-height: 700px;
  }
}

@media (max-width: 1024px) {
  .hero-section {
    max-height: 100dvh;
    overflow-y: auto;
  }
  .carousel-slide.active {
    min-height: calc(100dvh - var(--nav-height));
  }
  .navbar {
    padding: 0 var(--space-7);
  }
  .carousel-slide {
    padding: var(--space-6) var(--space-7);
  }
  .pain-section,
  .volumes-section,
  .benefits-section,
  .testimonials-section,
  .faq-section,
  .how-section,
  .guarantee-section {
    padding: var(--space-7);
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer {
    padding: var(--space-5) var(--space-7);
  }
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .volumes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .volume-bottle-wrap {
    width: 70px;
    height: 100px;
  }
  .hero-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  }

  .parallax-section {
    height: 70vh;
    min-height: 500px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .hero-section {
    min-height: 100dvh;
    max-height: none;
    overflow: hidden;
    padding-top: var(--nav-height);
  }

  .carousel-slider {
    min-height: auto;
  }

  .carousel-slide {
    grid-template-columns: 1fr;
    padding: var(--space-3) var(--space-4) var(--space-4);
    gap: var(--space-2);
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
  }

  .carousel-slide.active {
    position: relative;
    height: auto;
    min-height: calc(100dvh - var(--nav-height));
    align-content: center;
  }

  .hero-content {
    order: 1;
    max-width: 100%;
    margin-right: 0;
    text-align: center;
    align-items: center;
    gap: var(--space-2);
    min-height: 0;
  }

  .hero-visual {
    order: 0;
    padding-top: 0;
  }

  .product-bottle,
  .bottle-placeholder {
    max-height: 30dvh;
  }

  .product-bottle {
    width: auto;
    max-width: min(42vw, 170px);
    object-fit: contain;
  }

  .bottle-placeholder {
    width: min(42vw, 170px, calc(30dvh * 0.6));
  }

  .hero-title {
    font-size: clamp(1.4rem, 6vw, 1.8rem);
    line-height: 1.15;
  }

  .hero-title em::after {
    height: 3px;
    bottom: 2px;
  }

  .hero-subtitle {
    font-size: 0.9rem;
    margin: 0 auto;
  }

  .benefits-list {
    justify-content: center;
    gap: var(--space-1);
  }

  .benefit-card {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  .hero-controls {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }

  .btn-primary {
    padding: 14px 32px;
    font-size: 0.8rem;
  }

  .navbar-links li:not(:last-child) {
    display: none;
  }

  .navbar {
    padding: 0 var(--space-4);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }

  .navbar-logo {
    font-size: 1.15rem;
  }

  .navbar-cta {
    padding: 9px 18px;
    font-size: 0.72rem;
  }

  .carousel-arrow {
    display: none;
  }

  .carousel-arrow-mobile {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(8px);
    color: var(--color-text-body);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.2s ease;
  }

  .carousel-arrow-mobile:hover {
    background: #fff;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    color: var(--color-accent);
  }

  .carousel-nav-mobile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    z-index: 15;
  }

  .carousel-arrows-row {
    display: flex;
    gap: var(--space-3);
  }

  .carousel-dots-mobile {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .carousel-dots-wrap {
    display: none;
  }

  .dot {
    width: 6px;
    height: 6px;
  }

  .dot.active {
    width: 20px;
  }

  .pain-section,
  .volumes-section,
  .benefits-section,
  .testimonials-section,
  .faq-section,
  .how-section,
  .guarantee-section {
    padding: var(--space-6) var(--space-5);
  }

  .volumes-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .volume-desc {
    min-height: 0;
  }

  .pain-list li {
    font-size: 0.9rem;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .guarantee-seals {
    flex-direction: column;
    gap: var(--space-3);
    align-items: center;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .steps-grid::before {
    display: none;
  }

  .footer {
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-4);
    text-align: center;
  }

  .deco-circle[data-slot="3"],
  .deco-circle[data-slot="4"] {
    display: none;
  }

  .fruit-visual {
    width: 80px !important;
  }

  .deco-fruit {
    opacity: 0.1;
  }

  .parallax-section {
    height: 60vh;
    min-height: 420px;
  }

  .parallax-placeholder {
    animation: parallax-gradient 15s ease infinite;
  }
}

@media (max-width: 430px) {
  :root {
    --nav-height: 58px;
  }

  .carousel-slide {
    padding: var(--space-2) var(--space-3) var(--space-3);
    gap: var(--space-1);
  }

  .hero-content {
    gap: var(--space-1);
  }

  .product-bottle,
  .bottle-placeholder {
    max-height: 26dvh;
  }

  .product-bottle {
    max-width: min(38vw, 145px);
  }

  .bottle-placeholder {
    width: min(38vw, 145px, calc(26dvh * 0.6));
  }

  .flavor-badge {
    padding: 6px 14px;
    font-size: 0.62rem;
  }

  .hero-title {
    font-size: clamp(1.25rem, 7vw, 1.55rem);
  }

  .hero-subtitle {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .benefit-card {
    padding: 5px 9px;
    font-size: 0.68rem;
  }

  .hero-controls {
    gap: var(--space-2);
  }

  .hero-section .btn-primary {
    padding: 12px 26px;
  }

  .carousel-nav-mobile {
    margin-top: var(--space-1);
    gap: var(--space-1);
  }

  .carousel-arrow-mobile {
    width: 34px;
    height: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .deco-circle { animation: none; }
  .fruit-visual { animation: none; }
  .deco-fruit { animation: none; }
  .product-bottle { animation: none; }
  .bottle-placeholder { animation: none; }
  .parallax-placeholder { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}