@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Noto+Serif+JP:wght@400;500;600&family=Noto+Sans+JP:wght@300;400;500&family=Inter:wght@300;400&display=swap');

:root {
  --primary-color: #5C1D24; /* Wine Red */
  --accent-color: #D4AF37; /* Gold */
  --bg-color: #FDFBF7; /* Warm Beige */
  --text-color: #2F2F2F;
  --text-light: #666666;
  --white: #FFFFFF;
  --header-height: 80px;

  --font-serif: 'Cinzel', 'Noto Serif JP', serif;
  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
  
  --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.8;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.3;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title .en {
  display: block;
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.section-title .ja {
  display: block;
  font-size: 0.9rem;
  color: var(--accent-color);
}

p {
  font-family: var(--font-sans);
  font-weight: 300;
  margin-bottom: 1.5rem;
}

/* Layout */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

section {
  padding: 5rem 0;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(253, 251, 247, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: var(--transition);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 5%;
}

.header__logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  letter-spacing: 0.1em;
}

.header__nav ul {
  display: flex;
  gap: 2rem;
}

.header__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
}

.header__nav a:hover {
  color: var(--accent-color);
}

.header__reserve-btn {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  display: inline-block;
  border: 1px solid var(--primary-color);
}

.header__reserve-btn:hover {
  background-color: var(--bg-color);
  color: var(--primary-color);
}

/* Mobile Menu Button */
.hamburger {
  display: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--primary-color);
  margin: 5px 0;
  transition: var(--transition);
}

/* Components */
.btn {
  display: inline-block;
  padding: 1rem 3rem;
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  text-align: center;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.1em;
}

.btn:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn--solid {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn--solid:hover {
  background-color: var(--bg-color);
  color: var(--primary-color);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Footer */
.footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 4rem 0 2rem;
  text-align: center;
}

.footer__logo {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
  color: var(--accent-color);
}

.footer__info {
  margin-bottom: 2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer__nav {
  margin-bottom: 2rem;
}

.footer__nav ul {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__nav a:hover {
  color: var(--accent-color);
}

.footer__copyright {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  opacity: 0.6;
}

/* Responsive */
@media screen and (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--bg-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  }

  .header__nav.is-active {
    right: 0;
  }

  .header__nav ul {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }

  .hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger.is-active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* Form Styles */
.form-group {
  margin-bottom: 2rem;
}

.form-label {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.95rem;
}

.form-label .required {
  background-color: var(--primary-color);
  color: var(--white);
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 2px;
  margin-left: 0.5rem;
  letter-spacing: normal;
}

.form-label .optional {
  background-color: #e0e0e0;
  color: var(--text-color);
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 2px;
  margin-left: 0.5rem;
  letter-spacing: normal;
}

.form-control {
  width: 100%;
  padding: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  background-color: #fafafa;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-color);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

textarea.form-control {
  resize: vertical;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1em;
}