@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;1,400&family=Noto+Sans+JP:wght@400;500&display=swap');

/* ============================================================
   CSS VARIABLES
   ============================================================ */

:root {
  --color-bg:        #F6F3F2;
  --color-surface:   #EEE9E8;
  --color-text:      #2E2E2E;
  --color-text-sub:  #7A7580;
  --color-accent:    #8B3A3A;
  --color-accent-lt: #C47A7A;
  --color-border:    #D8D0CE;
  --color-dark:      #1E1A1C;
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

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

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

ul, ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

/* ============================================================
   HEADER
   ============================================================ */

.site-header {
  height: 42px;
  background: var(--color-bg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  height: 100%;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--color-surface);
  flex-shrink: 0;
}

.header-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.header-nav {
  display: flex;
  align-items: center;
}

.header-nav > ul {
  display: flex;
  gap: 20px;
}

.nav-link {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.08em;
  transition: color 0.15s;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.is-active {
  color: var(--color-accent);
}

/* ---- Hamburger ---- */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 14px;
  padding: 0;
  margin-left: 20px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---- Mobile dropdown ---- */

.mobile-nav {
  display: none;
  position: fixed;
  top: 42px;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 0.5px solid var(--color-border);
  z-index: 99;
  padding: 14px 40px 20px;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav .nav-link {
  font-size: 13px;
}

/* ============================================================
   PAGE MAIN (fixed header offset)
   ============================================================ */

.page-main {
  margin-top: 42px;
}

/* ============================================================
   PAGE CONTENT WRAPPER
   ============================================================ */

.page-content {
  max-width: 900px;
  margin: 0 auto;
}

/* ============================================================
   PAGE TITLE
   ============================================================ */

.page-title {
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 32px;
}

/* ============================================================
   PAGE DESC
   ============================================================ */

.page-desc {
  font-size: 12px;
  color: var(--color-text-sub);
  text-align: center;
  line-height: 1.7;
  margin-top: -20px;
  margin-bottom: 32px;
}

/* ============================================================
   SITE FOOTER (HOME以外)
   ============================================================ */

.site-footer {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 60px;
}

.footer-copy {
  font-size: 9px;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
}

/* ============================================================
   BADGE
   ============================================================ */

.badge {
  font-size: 9px;
  color: var(--color-accent);
  border: 0.5px solid var(--color-accent-lt);
  border-radius: 20px;
  padding: 2px 8px;
  background: var(--color-bg);
  white-space: nowrap;
}

/* ============================================================
   SNS ICON
   ============================================================ */

.sns-icon {
  position: relative;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.sns-icon:hover svg {
  opacity: 0.55;
}

.sns-icon svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

/* X・Xfolio公式ロゴはfill描画 */
.sns-icon--x svg,
.sns-icon--xfolio svg {
  fill: var(--color-accent);
  stroke: none;
}

/* ---- Tooltip ---- */

.tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 8px;
  padding: 3px 6px;
  border-radius: 3px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}

.sns-icon:hover .tooltip {
  opacity: 1;
}

/* ============================================================
   SECTION HEADER (タイトル＋横線)
   ============================================================ */

.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.section-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 0.5px;
  background: var(--color-accent-lt);
  opacity: 0.3;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  border-radius: 7px;
  padding: 10px 20px;
  font-size: 12px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.15s;
}

.btn-primary:hover {
  opacity: 0.85;
  color: var(--color-bg);
}

.btn-sub {
  display: inline-block;
  background: var(--color-surface);
  border: 0.5px solid var(--color-accent-lt);
  color: var(--color-text);
  border-radius: 7px;
  padding: 8px 14px;
  font-size: 12px;
  font-family: inherit;
  transition: background 0.15s;
}

.btn-sub:hover {
  background: var(--color-border);
}

/* ============================================================
   LEFT-BOTTOM WIDGET (HOME以外)
   ============================================================ */

.bottom-widget {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 90;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.bottom-widget.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.widget-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.widget-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--color-surface);
  flex-shrink: 0;
}

.widget-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
}

.widget-sns {
  display: flex;
  gap: 5px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  .header-nav > ul {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .bottom-widget {
    display: none;
  }
}