@charset "UTF-8";

/* ============================================ */
/* destyle.css v3.0.2 */
/* ============================================ */
*, ::before, ::after { box-sizing: border-box; border-style: solid; border-width: 0; }
html { line-height: 1.15; -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }
body { margin: 0; }
main { display: block; }
p, table, blockquote, address, pre, iframe, form, figure, dl { margin: 0; }
h1, h2, h3, h4, h5, h6 { font-size: inherit; font-weight: inherit; margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
dt { font-weight: bold; }
dd { margin-left: 0; }
hr { box-sizing: content-box; height: 0; overflow: visible; border-top-width: 1px; margin: 0; clear: both; color: inherit; }
pre { font-family: monospace, monospace; font-size: inherit; }
address { font-style: inherit; }
a { background-color: transparent; text-decoration: none; color: inherit; }
abbr[title] { text-decoration: underline dotted; }
b, strong { font-weight: bolder; }
code, kbd, samp { font-family: monospace, monospace; font-size: inherit; }
small { font-size: 80%; }
sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; }
sub { bottom: -0.25em; }
sup { top: -0.5em; }
svg, img, embed, object, iframe { vertical-align: bottom; }
button, input, optgroup, select, textarea { -webkit-appearance: none; appearance: none; vertical-align: middle; color: inherit; font: inherit; background: transparent; padding: 0; margin: 0; border-radius: 0; text-align: inherit; text-transform: inherit; }
[type="checkbox"] { -webkit-appearance: checkbox; appearance: checkbox; }
[type="radio"] { -webkit-appearance: radio; appearance: radio; }
button, [type="button"], [type="reset"], [type="submit"] { cursor: pointer; }
button:disabled, [type="button"]:disabled, [type="reset"]:disabled, [type="submit"]:disabled { cursor: default; }
:-moz-focusring { outline: auto; }
select:disabled { opacity: inherit; }
option { padding: 0; }
fieldset { margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
progress { vertical-align: baseline; }
textarea { overflow: auto; }
[type="number"]::-webkit-inner-spin-button, [type="number"]::-webkit-outer-spin-button { height: auto; }
[type="search"] { outline-offset: -2px; }
[type="search"]::-webkit-search-decoration { -webkit-appearance: none; }
::-webkit-file-upload-button { -webkit-appearance: button; font: inherit; }
label[for] { cursor: pointer; }
details { display: block; }
summary { display: list-item; }
[contenteditable]:focus { outline: auto; }
table { border-color: inherit; border-collapse: collapse; }
caption { text-align: left; }
td, th { vertical-align: top; padding: 0; }
th { text-align: left; font-weight: bold; }

/* ============================================ */
/* Base / Common */
/* ============================================ */
html {
  font-size: 18px;
  zoom: 0.8;
}
body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  color: #111;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: #f15a24;
  text-decoration: none;
}
.container {
  width: 100%;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
h1,h2,h3,h4 {
  margin: 0 0 .6rem;
  font-weight: 700;
}
p {
  margin: 0 0 1rem;
  color: #666;
}
small {
  color: #666;
}

/* ============================================ */
/* Header */
/* ============================================ */
header {
  position: fixed;
  top: 8px;
  left: 50%;
  width: calc(100% - 16px);
  max-width: 1360px;
  transform: translateX(-50%);
  background: transparent;
  border-bottom: 1px solid #d6d7db;
  color: #565b63;
  z-index: 20;
  padding: 0;
  transition: color 0.2s ease;
}
header .container {
  max-width: none;
  margin: 0;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header .logo {
  font-size: 1.32rem;
  font-weight: 400;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: #565b63;
}
header .logo a {
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease;
}
header .logo a:hover {
  opacity: 0.8;
}
header .logo-mark {
  display: none;
}
header nav ul {
  display: flex;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}
header nav li:first-child::before {
  content: none;
}
header nav ul li a {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: #686d75;
  text-decoration: none;
  transition: color 0.2s ease;
}
header nav ul li a:hover {
  color: #464b53;
  opacity: 1;
}
header.scrolled {
  background: transparent;
  box-shadow: none;
}
header.scrolled .logo a {
  color: #565b63;
}
header.scrolled nav ul li a {
  color: #686d75;
}
header.scrolled nav ul li a:hover {
  color: #464b53;
  opacity: 1;
}

header .hamburger-btn {
  display: none;
}

@media (max-width: 768px) {
  header {
    width: auto;
    left: 6px;
    right: 6px;
    top: 6px;
    transform: none;
  }
  header .container {
    padding: 12px 12px;
  }
  
  /* Initial state for mobile nav */
  header nav ul {
    display: none; /* Hide default ul style, will be overridden below for overlay */
  }

  header .hamburger-btn {
    display: block;
    position: relative;
    z-index: 1000;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    margin-left: auto;
  }
  header .hamburger-btn span {
    display: block;
    width: 30px;
    height: 2px;
    background-color: #565b63;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease-in-out;
  }
  header .hamburger-btn span:nth-child(1) {
    transform: translate(-50%, calc(-50% - 8px));
  }
  header .hamburger-btn span:nth-child(2) {
    transform: translate(-50%, -50%);
  }
  header .hamburger-btn span:nth-child(3) {
    transform: translate(-50%, calc(-50% + 8px));
  }
  header .hamburger-btn.active span {
    background-color: #333;
  }
  header .hamburger-btn.active span:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg);
  }
  header .hamburger-btn.active span:nth-child(2) {
    opacity: 0;
  }
  header .hamburger-btn.active span:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  header nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    opacity: 0;
    transition: all 0.4s ease;
    pointer-events: none;
  }
  header nav.active {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }
  
  header nav ul {
    display: flex;
    flex-direction: column;
    gap: 32px;
    text-align: center;
    margin: 0;
    padding: 0;
    width: 100%;
  }
  header nav ul li {
    list-style: none;
  }
  header nav ul li a {
    font-size: 1.2rem;
    color: #333;
    font-weight: 500;
    display: block;
    width: 100%;
  }
}

/* ============================================ */
/* Footer */
/* ============================================ */
.site-footer {
  background: #ffffff;
  color: #4f545d;
  padding: 18px 0;
  text-align: center;
}
.site-footer small {
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: #4f545d;
}