/*
Theme Name: Shiha Project
Theme URI: https://shiha.net
Author: Shibaya
Description: 森野詩葉プロジェクト（shiha.net）専用のオリジナルWordPressテーマ。ラボ的な暗さと、樹葉の成長を重ねた年輪モチーフを軸にしたデザイン。
Version: 1.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: shiha-project
*/

:root{
  --ink:#12151A;
  --panel:#1A1F26;
  --steel:#38424D;
  --mist:#8A97A3;
  --paper:#ECE9DE;
  --paper-ink:#2B2A24;
  --sprout:#6FA05A;
  --sprout-soft:#8DBB79;
  --circuit:#3FA9A4;
  --circuit-soft:#6FC4BF;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--ink);
  color:#DDE1E5;
  font-family:'Zen Kaku Gothic New', sans-serif;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  margin:0;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(18,21,26,0.9);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(138,151,163,0.15);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 32px;max-width:1080px;margin:0 auto;flex-wrap:wrap;gap:16px;
}
.logo{
  font-family:'Shippori Mincho', serif;
  font-size:20px;font-weight:700;letter-spacing:0.05em;
  color:#F1EEE4;
}
.logo span{color:var(--sprout-soft);}
.navlinks{display:flex;gap:32px;font-size:14px;color:var(--mist);flex-wrap:wrap;list-style:none;margin:0;padding:0;}
.navlinks li{list-style:none;}
.navlinks a:hover{color:var(--circuit-soft);}

/* ---------- Hero (front page only) ---------- */
.hero{
  padding:100px 32px 90px;max-width:1080px;margin:0 auto;
  display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:center;
}
.hero-eyebrow{
  font-family:'JetBrains Mono', monospace;font-size:12px;letter-spacing:0.15em;
  color:var(--circuit-soft);display:flex;align-items:center;gap:10px;margin-bottom:24px;
}
.hero-eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--circuit-soft);box-shadow:0 0 0 3px rgba(63,169,164,0.2);
}
.hero h1{
  font-family:'Shippori Mincho', serif;font-size:48px;font-weight:700;line-height:1.45;
  color:#F5F3EB;letter-spacing:0.02em;margin:0 0 24px;
}
.hero h1 em{font-style:normal;color:var(--sprout-soft);}
.hero p{font-size:16px;color:var(--mist);max-width:460px;margin:0 0 32px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:2px;
  font-size:14px;letter-spacing:0.05em;font-family:'Zen Kaku Gothic New', sans-serif;font-weight:500;
  border:1px solid transparent;transition:all 0.2s ease;
}
.btn-primary{background:var(--sprout);color:#0E1410;}
.btn-primary:hover{background:var(--sprout-soft);}
.btn-ghost{border-color:var(--steel);color:#DDE1E5;}
.btn-ghost:hover{border-color:var(--circuit-soft);color:var(--circuit-soft);}
.ring-wrap{display:flex;align-items:center;justify-content:center;}

/* ---------- Section shared (front page) ---------- */
.section{padding:90px 32px;}
.section-inner{max-width:1080px;margin:0 auto;}
.eyebrow{font-family:'JetBrains Mono', monospace;font-size:12px;letter-spacing:0.15em;color:var(--circuit-soft);margin-bottom:14px;}
.section-title{font-family:'Shippori Mincho', serif;font-size:30px;font-weight:700;color:#F5F3EB;margin:0 0 18px;}
.section-lede{color:var(--mist);max-width:560px;font-size:15px;margin-bottom:48px;}

.about{background:var(--panel);border-top:1px solid rgba(138,151,163,0.12);border-bottom:1px solid rgba(138,151,163,0.12);}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;}
.about-card{border-left:2px solid var(--sprout);padding-left:20px;}
.about-card .num{font-family:'Fraunces', serif;font-size:13px;color:var(--sprout-soft);margin-bottom:8px;}
.about-card h3{font-size:17px;color:#F1EEE4;margin:0 0 8px;font-weight:500;}
.about-card p{font-size:14px;color:var(--mist);margin:0;}

.roadmap-list{display:flex;flex-direction:column;}
.phase{display:grid;grid-template-columns:100px 1fr;gap:28px;padding:26px 0;border-top:1px solid rgba(138,151,163,0.15);}
.roadmap-list .phase:last-child{border-bottom:1px solid rgba(138,151,163,0.15);}
.phase-num{font-family:'JetBrains Mono', monospace;font-size:13px;color:var(--circuit-soft);padding-top:4px;}
.phase h3{font-size:18px;color:#F1EEE4;font-weight:500;margin:0 0 8px;}
.phase p{font-size:14px;color:var(--mist);max-width:600px;margin:0;}

.blog-section{background:var(--paper);color:var(--paper-ink);}
.blog-section .eyebrow{color:#4A7A60;}
.blog-section .section-title{color:#20231F;}
.blog-section .section-lede{color:#5C5A50;}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.blog-card{background:#F5F3EA;border:1px solid rgba(43,42,36,0.1);padding:26px;border-radius:2px;transition:transform 0.2s ease;}
.blog-card:hover{transform:translateY(-4px);}
.blog-card .tag{font-family:'JetBrains Mono', monospace;font-size:10px;letter-spacing:0.1em;color:#4A7A60;margin-bottom:12px;display:block;}
.blog-card h3{font-size:16px;font-weight:500;margin:0 0 10px;line-height:1.5;}
.blog-card p{font-size:13px;color:#5C5A50;margin:0;}

/* ---------- Reading pages (fixed pages / single posts) ---------- */
.page-hero{background:var(--panel);padding:70px 32px 50px;border-bottom:1px solid rgba(138,151,163,0.15);}
.page-hero .eyebrow{margin-bottom:14px;}
.page-hero h1{font-family:'Shippori Mincho', serif;font-size:34px;color:#F5F3EB;margin:0;line-height:1.5;}
.page-hero .meta{font-family:'JetBrains Mono', monospace;font-size:12px;color:var(--mist);margin-top:14px;}

.content-area{background:var(--paper);color:var(--paper-ink);padding:70px 32px 100px;}
.content-inner{max-width:760px;margin:0 auto;font-size:16px;}
.content-inner h2{font-family:'Shippori Mincho', serif;font-size:24px;color:#20231F;margin:48px 0 20px;}
.content-inner h3{font-family:'Zen Kaku Gothic New', sans-serif;font-size:18px;font-weight:700;color:#20231F;margin:36px 0 14px;}
.content-inner p{margin:0 0 20px;color:#3A382F;}
.content-inner ul,.content-inner ol{margin:0 0 20px 20px;color:#3A382F;}
.content-inner li{margin-bottom:8px;}
.content-inner a{color:#3F8A83;text-decoration:underline;text-underline-offset:3px;}
.content-inner strong{color:#20231F;}
.content-inner table{width:100%;border-collapse:collapse;margin:0 0 28px;font-size:14px;}
.content-inner th,.content-inner td{border:1px solid rgba(43,42,36,0.15);padding:10px 14px;text-align:left;}
.content-inner th{background:#E3E0D3;font-weight:700;}
.content-inner blockquote{border-left:3px solid var(--sprout);padding-left:20px;color:#5C5A50;margin:0 0 20px;font-style:italic;}

/* ---------- Footer ---------- */
.site-footer{padding:56px 32px 36px;border-top:1px solid rgba(138,151,163,0.15);background:var(--ink);}
.footer-inner{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;}
.footer-inner .logo{font-size:16px;}
.foot-links{display:flex;gap:26px;font-size:13px;color:var(--mist);flex-wrap:wrap;}
.foot-note{font-family:'JetBrains Mono', monospace;font-size:11px;color:var(--steel);margin-top:20px;max-width:1080px;margin-left:auto;margin-right:auto;padding:0 32px;}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;padding:70px 24px 50px;}
  .hero h1{font-size:34px;}
  .about-grid,.blog-grid{grid-template-columns:1fr;}
  .navlinks{gap:20px;}
  .section{padding:60px 24px;}
  .phase{grid-template-columns:60px 1fr;gap:18px;}
  .content-area,.page-hero{padding-left:20px;padding-right:20px;}
}