@charset "utf-8";

/* ==========================================================================
   DIGITAL ARK - Premium Luxury Brand Design
   European High-End Style
   ========================================================================== */

:root {
  --color-bg: #0a0a0a;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.6);
  --color-gold: #c9a962;
  --color-gold-light: #e8d5a8;
  --color-border: rgba(255, 255, 255, 0.15);
  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body: 'Montserrat', 'Helvetica Neue', sans-serif;
  --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ==========================================================================
   Video Background
   ========================================================================== */

#video-area {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.4) 0%,
    rgba(0, 0, 0, 0.6) 50%,
    rgba(0, 0, 0, 0.8) 100%
  );
  z-index: 1;
}

#video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 177.77777778vh;
  height: 56.25vw;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.9);
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */

#main-content {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  z-index: 10;
}

.content-wrapper {
  max-width: 600px;
  width: 100%;
  text-align: center;
}

/* ==========================================================================
   Brand / Logo Section
   ========================================================================== */

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}

.brand-line {
  display: block;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.brand-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 300;
  letter-spacing: 0.4em;
  margin: 0;
  color: var(--color-text);
  text-transform: uppercase;
}

/* ==========================================================================
   Tagline
   ========================================================================== */

.tagline {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 60px 0;
}

/* ==========================================================================
   Age Gate Section
   ========================================================================== */

.age-gate {
  margin-bottom: 60px;
}

.age-gate-inner {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.age-notice {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin: 0 0 24px 0;
  text-transform: uppercase;
}

.age-question {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0 0 8px 0;
}

.age-notice-jp {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.button-group {
  display: flex;
  flex-direction: row;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 70px;
  text-decoration: none;
  overflow: hidden;
  transition: all 0.5s var(--transition-smooth);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: all 0.5s var(--transition-smooth);
}

.btn-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  position: relative;
  z-index: 2;
  transition: all 0.4s var(--transition-smooth);
}

.btn-subtext {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  position: relative;
  z-index: 2;
  margin-top: 4px;
  transition: all 0.4s var(--transition-smooth);
}

/* Enter Button - Gold Accent */
.btn-enter {
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
}

.btn-enter::before {
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
}

.btn-enter:hover {
  color: var(--color-bg);
}

.btn-enter:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-enter:hover .btn-text,
.btn-enter:hover .btn-subtext {
  color: var(--color-bg);
}

/* Exit Button - Subtle */
.btn-exit {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.btn-exit::before {
  background: rgba(255, 255, 255, 0.1);
  transform: scaleX(0);
  transform-origin: right;
}

.btn-exit:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-text);
}

.btn-exit:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==========================================================================
   Legal Notice
   ========================================================================== */

.legal-notice {
  padding-top: 20px;
}

.legal-notice p {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.8;
  opacity: 0.6;
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInSlow {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes lineExpand {
  from {
    width: 0;
  }
  to {
    width: 60px;
  }
}

.animate-fade-in {
  animation: fadeIn 1s var(--transition-smooth) forwards;
  animation-delay: 0.3s;
  opacity: 0;
}

.animate-fade-in .brand-line {
  animation: lineExpand 1s var(--transition-smooth) forwards;
  animation-delay: 0.8s;
  width: 0;
}

.animate-fade-in-delay {
  animation: fadeIn 1s var(--transition-smooth) forwards;
  animation-delay: 0.8s;
  opacity: 0;
}

.animate-fade-in-delay-2 {
  animation: fadeIn 1s var(--transition-smooth) forwards;
  animation-delay: 1.2s;
  opacity: 0;
}

.animate-fade-in-delay-3 {
  animation: fadeInSlow 1.5s var(--transition-smooth) forwards;
  animation-delay: 1.8s;
  opacity: 0;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media screen and (max-width: 768px) {
  .brand {
    gap: 16px;
  }

  .brand-line {
    width: 40px;
  }

  .animate-fade-in .brand-line {
    animation-name: lineExpandMobile;
  }

  @keyframes lineExpandMobile {
    from { width: 0; }
    to { width: 40px; }
  }

  .brand-name {
    letter-spacing: 0.25em;
  }

  .tagline {
    letter-spacing: 0.3em;
    margin-bottom: 40px;
  }

  .age-gate-inner {
    padding: 30px 0;
  }

  .button-group {
    gap: 16px;
  }

  .btn {
    width: 160px;
    height: 64px;
  }

  .btn-text {
    font-size: 1.1rem;
    letter-spacing: 0.25em;
  }
}

@media screen and (max-width: 480px) {
  .brand-line {
    width: 30px;
    display: none;
  }

  .brand-name {
    letter-spacing: 0.2em;
  }

  .button-group {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 200px;
  }
}

/* ==========================================================================
   Selection & Scrollbar
   ========================================================================== */

::selection {
  background: var(--color-gold);
  color: var(--color-bg);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold);
}