/* ==========================================================================
   be style lab - Landing Page Styles (Image-based)
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #6b74bf;
  --color-primary-dark: #4859aa;
  --color-secondary: #afb5ee;
  --color-secondary-light: #a8d0eb;
  --color-text: #0a0a0a;
  --color-white: #fafafa;
  --color-background: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(90deg, #afb5ee 0%, #a8d0eb 100%);

  /* Fonts */
  --font-family-base: "Noto Sans JP", "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", Meiryo, sans-serif;
  --font-family-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;

  /* Shadows */
  --shadow-button: 0px 4px 10px rgba(139, 137, 160, 1);
}

/* --------------------------------------------------------------------------
   Base Styles
   -------------------------------------------------------------------------- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family-base);
  font-size: 16px;
  line-height: 1.4;
  color: var(--color-text);
  background-color: var(--color-background);
  max-width: 640px;
  margin: 0 auto;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  user-select: none;
  pointer-events: none;
  -webkit-touch-callout: none;
}

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

section {
  position: relative;
}

/* Focus Styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Skip Link
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  background: var(--color-primary);
  color: var(--color-white);
  z-index: 9999;
  border-radius: 8px;
  font-size: 14px;
}

.skip-link:focus {
  top: 10px;
}

/* --------------------------------------------------------------------------
   Section (Common)
   -------------------------------------------------------------------------- */
.section {
  position: relative;
  width: 100%;
}

.section__image {
  width: 100%;
  height: auto;
  display: block;
}

.section--cta {
  padding: 40px 40px;
}

.section--price {
  margin-bottom: 30px;
}

/* --------------------------------------------------------------------------
   Hero Section (Swiper)
   -------------------------------------------------------------------------- */
.section--hero {
  position: relative;
}

.hero-slider {
  width: 100%;
  /* Safari fix: ensure proper rendering */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  will-change: transform;
}

.hero-slider .swiper-wrapper {
  /* Safari fix: ensure wrapper renders correctly */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.hero-slider .swiper-slide {
  /* Safari fix: prevent layout issues */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slider .swiper-slide-active {
  opacity: 1;
}

.hero-slider__image {
  width: 100%;
  height: auto;
  display: block;
  /* Safari fix: prevent image rendering issues */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* --------------------------------------------------------------------------
   CTA Button
   -------------------------------------------------------------------------- */
.cta-wrapper {
  padding: 20px 40px 40px;
  text-align: center;
}

.cta-wrapper--hero {
  position: absolute;
  bottom: -66px;
  left: 0;
  right: 0;
  padding: 0;
  z-index: 10;
}

.cta-wrapper--hero .cta-button {
  padding: 0;
  margin: auto;
}

.cta-wrapper--price {
  position: absolute;
  bottom: 10px;
}

.cta-wrapper--price .cta-button {
  padding: 0;
  margin: auto;
}

.cta-wrapper--cta {
  padding: 0;
}

.cta-wrapper--cta .cta-button {
  padding: 0;
  margin: auto;
}

.cta-button {
  display: block;
  transition: transform 0.3s ease;
  min-height: 44px;
  text-align: center;
}

.cta-button:hover,
.cta-button:focus {
  transform: translateY(-2px);
}

.cta-button__sub {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #d4a574;
  margin-bottom: 5px;
  letter-spacing: 0.04em;
}

.cta-button__main {
  display: block;
  font-size: 28px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.04em;
}

.cta-note {
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.6;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-note strong {
  font-size: 18px;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  width: 100%;
  position: relative;
  margin-top: 36px;
}

/* --------------------------------------------------------------------------
   Responsive adjustments for 375px viewport
   -------------------------------------------------------------------------- */
@media screen and (max-width: 640px) {
  body {
    max-width: 100%;
    font-size: 3.5vw;
  }

  .cta-wrapper {
    padding: 15px 20px 30px;
  }

  .cta-button {
    padding: 12px 20px 16px;
  }

  .cta-button__sub {
    font-size: 14px;
  }

  .cta-button__main {
    font-size: 24px;
  }

  .section--cta {
    padding: 30px 20px;
  }

  .cta-wrapper--price {
    bottom: 0;
  }

  .cta-wrapper--cta {
    padding: 0;
  }

  .cta-note {
    margin-top: 1rem;
    font-size: 2.8vw;
    line-height: 1.6;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .cta-note strong {
    font-size: 1rem;
    font-weight: 700;
  }
}