/*
Theme Name: こえとも
Theme URI: https://koetomo.app
Author: koetomo
Description: ずんだもんとAIで遊ぶエンタメサイト用テーマ（シンプル・ホワイト）
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: koetomo
*/

/* ===== Design Tokens ===== */
:root {
  --c-bg:        #ffffff;
  --c-surface:   #f8f8f6;
  --c-surface2:  #f2f2ef;
  --c-border:    #e8e8e4;
  --c-border2:   #d4d4ce;
  --c-text:      #1a1a18;
  --c-text2:     #6b6b66;
  --c-text3:     #a0a09a;
  --c-accent:    #2d6a4f;
  --c-accent-l:  #f0f7f4;
  --c-accent-b:  #1a4535;
  --c-yellow:    #f0c040;
  --c-yellow-l:  #fdf8e8;

  --font-head: 'Zen Maru Gothic', 'M PLUS Rounded 1c', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;

  --r-sm:  6px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  32px;

  --shadow-xs: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.09);

  --max-w: 1080px;
  --header-h: 60px;
  --transition: 0.18s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* ===== Layout ===== */
.container {
  width: min(var(--max-w), 100% - 2.5rem);
  margin-inline: auto;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.01em;
}

.site-logo .logo-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.site-logo .logo-sub {
  display: block;
  font-size: 0.62rem;
  color: var(--c-text3);
  font-weight: 400;
  letter-spacing: 0.05em;
  line-height: 1;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  color: var(--c-text2);
  font-size: 0.875rem;
  padding: 6px 14px;
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
  font-weight: 500;
}

.site-nav a:hover {
  background: var(--c-surface);
  color: var(--c-text);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-text2);
  font-size: 1.1rem;
  padding: 5px 10px;
  border-radius: var(--r-sm);
}

/* ===== Hero ===== */
.hero {
  background: var(--c-bg);
  padding: 72px 0 80px;
  text-align: center;
  border-bottom: 1px solid var(--c-border);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-accent-l);
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--c-text);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-title em {
  font-style: normal;
  color: var(--c-accent);
}

.hero-desc {
  color: var(--c-text2);
  font-size: 1rem;
  max-width: 420px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

/* ===== Chat Widget ===== */
.chat-card {
  max-width: 640px;
  margin-inline: auto;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.chat-topbar {
  padding: 14px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--c-surface);
}

.chat-topbar .bot-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.chat-topbar .bot-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--c-text);
}

.chat-topbar .bot-status {
  font-size: 0.7rem;
  color: var(--c-text3);
  margin-top: 1px;
}

.online-pip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 2px rgba(34,197,94,0.2);
  margin-left: auto;
  flex-shrink: 0;
  animation: pip 2.4s ease-in-out infinite;
}

@keyframes pip {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.chat-log {
  min-height: 260px;
  max-height: 360px;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border2) transparent;
}

.chat-log::-webkit-scrollbar { width: 4px; }
.chat-log::-webkit-scrollbar-thumb { background: var(--c-border2); border-radius: 4px; }

.msg {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  animation: fadein 0.24s ease both;
}

@keyframes fadein {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg.user { flex-direction: row-reverse; }

.msg-av {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.msg.ai   .msg-av { background: var(--c-accent-l); }
.msg.user .msg-av { background: var(--c-surface2); }

.msg-bub {
  max-width: 78%;
  padding: 9px 13px;
  font-size: 0.88rem;
  line-height: 1.65;
  border-radius: 14px;
}

.msg.ai   .msg-bub {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-bottom-left-radius: 3px;
  color: var(--c-text);
}

.msg.user .msg-bub {
  background: var(--c-accent);
  color: #fff;
  border-bottom-right-radius: 3px;
}

.typing-dots {
  display: flex;
  gap: 4px;
  padding: 4px 2px;
  align-items: center;
}

.typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-text3);
  animation: tdot 1.2s ease-in-out infinite;
}

.typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.typing-dots span:nth-child(3) { animation-delay: 0.30s; }

@keyframes tdot {
  0%, 80%, 100% { transform: translateY(0); }
  40%           { transform: translateY(-5px); }
}

.chat-footer {
  border-top: 1px solid var(--c-border);
  padding: 12px 14px;
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--c-surface);
}

.chat-footer input {
  flex: 1;
  background: var(--c-bg);
  border: 1px solid var(--c-border2);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 0.88rem;
  font-family: var(--font-body);
  color: var(--c-text);
  outline: none;
  transition: border-color var(--transition);
}

.chat-footer input::placeholder { color: var(--c-text3); }

.chat-footer input:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(45,106,79,0.08);
}

.send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--c-accent);
  border: none;
  color: #fff;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition), transform 0.1s;
}

.send-btn:hover  { background: var(--c-accent-b); }
.send-btn:active { transform: scale(0.93); }
.send-btn:disabled { opacity: 0.5; cursor: default; }

/* ===== Ad slots ===== */
.ad-wrap {
  width: 100%;
  margin: 28px 0;
}

.ad-placeholder {
  background: var(--c-surface);
  border: 1px dashed var(--c-border2);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text3);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  overflow: hidden;
}

.ad-h  { height: 90px; }
.ad-sq { min-height: 250px; margin-bottom: 20px; }

/* ===== Section ===== */
.section { padding: 64px 0; }

.sec-head { margin-bottom: 36px; }

.sec-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 8px;
}

.sec-title {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  font-weight: 900;
  color: var(--c-text);
  letter-spacing: -0.01em;
}

.sec-lead {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--c-text2);
}

/* ===== Post Cards ===== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
}

.post-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.post-card-img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.post-card-no-img {
  width: 100%;
  height: 170px;
  background: var(--c-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--c-text3);
}

.post-card-body {
  padding: 18px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: var(--c-accent-l);
  padding: 2px 9px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.post-card-title {
  font-family: var(--font-head);
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-text);
  flex: 1;
  margin-bottom: 12px;
}

.post-card-title a:hover { color: var(--c-accent); }

.post-meta {
  font-size: 0.75rem;
  color: var(--c-text3);
}

/* ===== Content + Sidebar ===== */
.with-sidebar {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 36px;
  align-items: start;
}

/* ===== Sidebar ===== */
.sidebar-box {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-box-title {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-border);
}

/* ===== Post Content ===== */
.entry-wrap {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 40px;
  box-shadow: var(--shadow-xs);
}

.entry-wrap h1 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 20px;
}

.entry-meta {
  font-size: 0.78rem;
  color: var(--c-text3);
  display: flex;
  gap: 16px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 28px;
}

.entry-content { line-height: 1.9; }

.entry-content h2 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 2.2em 0 0.7em;
  padding: 10px 14px;
  background: var(--c-surface);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.entry-content h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.8em 0 0.5em;
  color: var(--c-accent-b);
}

.entry-content p  { margin-bottom: 1.3em; }

.entry-content ul,
.entry-content ol { padding-left: 1.6em; margin-bottom: 1.3em; }

.entry-content li { margin-bottom: 0.4em; }

.entry-content a {
  color: var(--c-accent);
  border-bottom: 1px solid rgba(45,106,79,0.25);
  transition: border-color var(--transition);
}
.entry-content a:hover { border-color: var(--c-accent); }

.entry-content code {
  background: var(--c-surface2);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.87em;
  border: 1px solid var(--c-border);
}

.entry-content pre {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 20px;
  border-radius: var(--r-md);
  overflow-x: auto;
  margin-bottom: 1.5em;
  font-size: 0.86rem;
  line-height: 1.6;
}

.entry-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

.entry-content blockquote {
  border-left: 3px solid var(--c-border2);
  padding: 12px 20px;
  margin: 1.5em 0;
  color: var(--c-text2);
  background: var(--c-surface);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
.btn-primary:hover { background: var(--c-accent-b); border-color: var(--c-accent-b); }

.btn-ghost {
  background: transparent;
  color: var(--c-text2);
  border-color: var(--c-border2);
}
.btn-ghost:hover { color: var(--c-text); border-color: var(--c-text2); }

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  min-width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border-radius: var(--r-sm);
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text2);
  transition: all var(--transition);
}

.pagination .current {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

.pagination a:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ===== Footer ===== */
.site-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 0 0 28px;
  color: var(--c-text2);
}

.footer-ad-row {
  border-bottom: 1px solid var(--c-border);
  padding: 20px 0 0;
  margin-bottom: 40px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand { display: flex; flex-direction: column; gap: 12px; }

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-text);
}

.footer-logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.footer-logo-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
}

.footer-tagline {
  font-size: 0.83rem;
  line-height: 1.75;
  color: var(--c-text2);
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-accent);
  background: var(--c-accent-l);
  border: 1px solid rgba(45,106,79,0.2);
  padding: 7px 14px;
  border-radius: 999px;
  width: fit-content;
  transition: background var(--transition);
}
.footer-cta:hover { background: rgba(45,106,79,0.12); }

.footer-col { display: flex; flex-direction: column; }

.footer-col-ttl {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 12px;
}

.footer-links { list-style: none; }

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  font-size: 0.84rem;
  color: var(--c-text2);
  transition: color var(--transition);
  line-height: 1.4;
}
.footer-links a:hover { color: var(--c-accent); }

.footer-credits {
  border-top: 1px solid var(--c-border);
  padding: 16px 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-credits-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text3);
  white-space: nowrap;
  margin-right: 4px;
}

.footer-credits-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.76rem;
  color: var(--c-text3);
  flex-wrap: wrap;
  gap: 8px;
}

.footer-law a {
  color: var(--c-text3);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-law a:hover { color: var(--c-accent); }

/* ===== Breadcrumb ===== */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--c-text3);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--c-text3); }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb .sep { color: var(--c-border2); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .with-sidebar { grid-template-columns: 1fr; }
  .footer-main  { grid-template-columns: 1fr; gap: 28px; }
  .site-nav     { display: none; }
  .nav-toggle   { display: flex; }

  .site-nav.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 20px 20px;
    gap: 4px;
  }

  .entry-wrap { padding: 24px 20px; }
}

/* ===== Contact Form ===== */
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.85rem; font-weight: 700; color: var(--c-text); display: flex; align-items: center; gap: 6px; }
.form-required { font-size: 0.68rem; background: #e74c3c; color: #fff; padding: 1px 6px; border-radius: 3px; font-weight: 700; }
.form-input { background: var(--c-bg); border: 1px solid var(--c-border2); border-radius: var(--r-md); padding: 10px 14px; font-size: 0.9rem; font-family: var(--font-body); color: var(--c-text); outline: none; transition: border-color var(--transition), box-shadow var(--transition); width: 100%; }
.form-input:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(45,106,79,0.08); }
.form-input::placeholder { color: var(--c-text3); }
.form-textarea { resize: vertical; min-height: 150px; }

/* ===== Credit badges ===== */
.credit-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  color: var(--c-text2);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 5px 10px;
  transition: border-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.credit-badge:hover { border-color: var(--c-accent); color: var(--c-accent); }
.credit-sub { font-size: 0.68rem; color: var(--c-text3); margin-left: 2px; }

/* ===== WP Alignment ===== */
.alignleft    { float: left; margin-right: 1.5rem; margin-bottom: 1rem; }
.alignright   { float: right; margin-left: 1.5rem; margin-bottom: 1rem; }
.aligncenter  { margin-inline: auto; display: block; }
.wp-caption-text { font-size: 0.8rem; color: var(--c-text3); text-align: center; margin-top: 6px; }