/*
Theme Name: SONIC IDOL Renewal
Theme URI: https://sonic-idol.example/
Author: SONIC FORM
Author URI: https://sonic-idol.example/
Description: SONIC IDOL official renewal theme. Soft idol production design with audition landing page.
Version: 1.0.1
License: GPLv2 or later
Text Domain: sonic-idol-renewal
*/

:root{
  --si-bg:#fffafd;
  --si-bg2:#f7f4ff;
  --si-text:#28232d;
  --si-muted:#706676;
  --si-pink:#f5a8c8;
  --si-pink2:#ff6fae;
  --si-lav:#b9a7ff;
  --si-blue:#9edcff;
  --si-line:#efe2ee;
  --si-dark:#211b2a;
  --si-white:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;color:var(--si-text);background:linear-gradient(180deg,#fffafd 0%,#f8f4ff 45%,#fff 100%);line-height:1.8;letter-spacing:.03em}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.si-wrap{overflow:hidden;min-height:100vh}.si-container{width:min(1120px,calc(100% - 36px));margin:auto}.si-header{position:sticky;top:0;z-index:50;background:rgba(255,250,253,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(239,226,238,.9)}.si-header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}.si-logo{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.08em}.si-logo-mark{width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--si-pink),var(--si-lav),var(--si-blue));box-shadow:0 12px 32px rgba(185,167,255,.35);position:relative}.si-logo-mark:before{content:"♪";position:absolute;inset:0;display:grid;place-items:center;color:white;font-size:22px;font-weight:900}.si-logo-text{display:flex;flex-direction:column;line-height:1.1}.si-logo-text strong{font-size:18px}.si-logo-text span{font-size:10px;color:var(--si-muted);letter-spacing:.22em}.si-nav{display:flex;align-items:center;gap:24px;font-size:13px;font-weight:700;color:#5b5260}.si-nav a:hover{color:var(--si-pink2)}.si-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:13px 22px;font-weight:900;background:linear-gradient(135deg,var(--si-pink2),var(--si-lav));color:#fff;box-shadow:0 14px 32px rgba(255,111,174,.28);transition:.2s}.si-btn:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,111,174,.38)}.si-btn.ghost{background:rgba(255,255,255,.7);color:var(--si-text);border:1px solid var(--si-line);box-shadow:none}.si-hero{position:relative;padding:86px 0 76px}.si-hero:before{content:"";position:absolute;width:540px;height:540px;border-radius:50%;right:-180px;top:-120px;background:radial-gradient(circle,rgba(245,168,200,.45),rgba(185,167,255,.12) 56%,transparent 72%);filter:blur(2px)}.si-hero:after{content:"";position:absolute;width:380px;height:380px;border-radius:50%;left:-140px;bottom:-120px;background:radial-gradient(circle,rgba(158,220,255,.32),transparent 68%)}.si-hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}.si-kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--si-line);font-size:12px;font-weight:900;color:#8b5f78;box-shadow:0 10px 30px rgba(185,167,255,.12)}.si-title{font-size:clamp(38px,6vw,76px);line-height:1.05;margin:22px 0 20px;letter-spacing:.01em}.si-title .grad{background:linear-gradient(135deg,#ff6fae,#9f8cff,#66cfff);-webkit-background-clip:text;background-clip:text;color:transparent}.si-lead{font-size:17px;color:#5f5665;max-width:620px}.si-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.si-note{font-size:12px;color:#897f8e;margin-top:16px}.si-visual{position:relative;min-height:460px}.si-card-main{position:absolute;inset:10px 0 0 30px;border-radius:38px;background:linear-gradient(145deg,rgba(255,255,255,.95),rgba(255,244,250,.78));border:1px solid rgba(255,255,255,.85);box-shadow:0 30px 90px rgba(73,51,91,.14);padding:28px;overflow:hidden}.si-card-main:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 25% 10%,rgba(255,111,174,.35),transparent 28%),radial-gradient(circle at 82% 20%,rgba(158,220,255,.34),transparent 28%),linear-gradient(180deg,transparent,rgba(185,167,255,.12));}.si-stage{position:relative;height:100%;border-radius:30px;background:linear-gradient(180deg,#fff,#fff6fb);display:flex;align-items:center;justify-content:center;overflow:hidden}.si-stage:before{content:"SONIC\A IDOL";white-space:pre;position:absolute;text-align:center;font-size:78px;line-height:.92;font-weight:1000;letter-spacing:.05em;color:rgba(33,27,42,.055)}.si-stage:after{content:"AUDITION 2026";position:absolute;bottom:28px;left:50%;transform:translateX(-50%);font-size:13px;font-weight:900;color:#a18ca6;background:#fff;padding:8px 14px;border-radius:999px;border:1px solid var(--si-line)}.si-orbit{position:absolute;border-radius:999px;background:#fff;border:1px solid var(--si-line);box-shadow:0 18px 44px rgba(73,51,91,.12);padding:14px 18px;font-size:13px;font-weight:900}.si-o1{right:0;top:36px}.si-o2{left:0;bottom:70px}.si-o3{right:22px;bottom:18px}.si-section{padding:74px 0}.si-section-title{text-align:center;margin-bottom:34px}.si-section-title span{display:inline-block;font-size:12px;font-weight:900;color:#b17aa0;letter-spacing:.18em}.si-section-title h2{font-size:clamp(28px,4vw,46px);line-height:1.18;margin:10px 0 0}.si-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.si-feature{background:rgba(255,255,255,.78);border:1px solid var(--si-line);border-radius:28px;padding:28px;box-shadow:0 18px 48px rgba(73,51,91,.07)}.si-feature .icon{width:48px;height:48px;border-radius:17px;display:grid;place-items:center;background:linear-gradient(135deg,#fff0f7,#f0ecff);font-size:22px;margin-bottom:16px}.si-feature h3{margin:0 0 8px;font-size:20px}.si-feature p{margin:0;color:var(--si-muted);font-size:14px}.si-band{background:linear-gradient(135deg,#211b2a,#3a2948);color:white;border-radius:40px;padding:44px;display:grid;grid-template-columns:1fr .85fr;gap:30px;align-items:center;box-shadow:0 28px 80px rgba(33,27,42,.22);position:relative;overflow:hidden}.si-band:before{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(255,111,174,.38),transparent 68%)}.si-band>*{position:relative}.si-band h2{font-size:clamp(28px,4vw,48px);line-height:1.1;margin:0 0 18px}.si-band p{color:rgba(255,255,255,.78)}.si-band-card{border-radius:30px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);padding:24px}.si-band-card strong{display:block;font-size:30px;line-height:1.1}.si-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}.si-step{counter-increment:step;background:#fff;border:1px solid var(--si-line);border-radius:24px;padding:24px;position:relative}.si-step:before{content:counter(step,decimal-leading-zero);display:block;color:#d196b9;font-weight:1000;font-size:13px;letter-spacing:.16em}.si-step h3{margin:8px 0 6px}.si-step p{font-size:13px;color:var(--si-muted);margin:0}.si-audition{border-radius:42px;padding:48px;background:linear-gradient(135deg,#fff,#fff0f7 48%,#f1edff);border:1px solid #fff;box-shadow:0 24px 80px rgba(255,111,174,.14);display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center}.si-audition h2{font-size:clamp(30px,4vw,52px);line-height:1.13;margin:0 0 16px}.si-list{padding:0;margin:20px 0;list-style:none;display:grid;gap:10px}.si-list li{background:rgba(255,255,255,.72);border:1px solid var(--si-line);border-radius:16px;padding:10px 14px;font-weight:800;font-size:14px}.si-footer{padding:38px 0 90px;text-align:center;color:#817785;font-size:13px}.si-fixed{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:80;width:min(520px,calc(100% - 28px));display:none}.si-fixed a{width:100%;padding:15px 22px}.si-page{padding:56px 0}.si-content{background:#fff;border:1px solid var(--si-line);border-radius:28px;padding:34px;box-shadow:0 18px 48px rgba(73,51,91,.07)}
@media(max-width:860px){.si-nav{display:none}.si-header-inner{height:66px}.si-hero{padding:52px 0 54px}.si-hero-grid,.si-band,.si-audition{grid-template-columns:1fr}.si-visual{min-height:340px}.si-card-main{inset:0}.si-grid3,.si-flow{grid-template-columns:1fr}.si-band,.si-audition{border-radius:30px;padding:30px}.si-fixed{display:block}.si-title{font-size:42px}.si-stage:before{font-size:56px}.si-orbit{font-size:12px;padding:10px 13px}}

.si-hero-photo{position:absolute;inset:38px 28px 64px 58px;width:calc(100% - 86px);height:calc(100% - 102px);object-fit:cover;border-radius:26px;box-shadow:0 24px 70px rgba(73,51,91,.18);z-index:2}.si-orbit{z-index:3}.si-band-image,.si-audition-image{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:22px;margin-bottom:18px;box-shadow:0 18px 44px rgba(0,0,0,.16)}
@media(max-width:860px){.si-hero-photo{inset:28px 18px 54px 28px;width:calc(100% - 46px);height:calc(100% - 82px)}}

.si-content:has(.si-seo-page){background:transparent;border:0;box-shadow:none;padding:0}.si-seo-page{display:grid;gap:52px}.si-seo-page h2{font-size:clamp(26px,4vw,44px);line-height:1.18;margin:12px 0 16px}.si-seo-page h3{margin:0 0 8px;font-size:20px}.si-seo-page p{color:var(--si-muted);margin:0}.si-seo-hero,.si-seo-section,.si-seo-cta{background:rgba(255,255,255,.82);border:1px solid var(--si-line);border-radius:34px;box-shadow:0 22px 62px rgba(73,51,91,.08);padding:34px}.si-seo-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;background:linear-gradient(135deg,#fff,#fff0f7 52%,#f0ecff)}.si-seo-main-image img,.si-seo-side-image img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:26px;box-shadow:0 18px 50px rgba(73,51,91,.16)}.si-seo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.si-seo-grid article,.si-requirements div,.si-faq details{background:#fff;border:1px solid var(--si-line);border-radius:22px;padding:20px}.si-seo-grid p{font-size:14px}.si-seo-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center}.si-check-list,.si-requirements{margin:22px 0 0;padding:0;list-style:none}.si-check-list{display:grid;gap:10px}.si-check-list li{background:#fff;border:1px solid var(--si-line);border-radius:16px;padding:11px 14px;font-weight:800}.si-check-list li:before{content:"✓";color:var(--si-pink2);font-weight:1000;margin-right:8px}.si-requirements{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.si-requirements div{font-weight:850}.si-faq{display:grid;gap:12px;margin-top:22px}.si-faq summary{cursor:pointer;font-weight:900;color:var(--si-text)}.si-faq p{margin-top:10px;font-size:14px}.si-seo-cta{text-align:center;background:linear-gradient(135deg,#211b2a,#3a2948);color:#fff}.si-seo-cta p{color:rgba(255,255,255,.78);max-width:760px;margin:0 auto}.si-seo-cta .si-actions{justify-content:center}.si-seo-cta .si-btn.ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
.si-home-links a{display:inline-flex;margin-top:14px;font-weight:900;color:var(--si-pink2)}.si-home-links a:after{content:"→";margin-left:7px}.si-seo-page .si-actions p{margin:0}.si-seo-page .sonic-idol-image{margin:0}
@media(max-width:860px){.si-seo-page{gap:32px}.si-seo-hero,.si-seo-section,.si-seo-cta{border-radius:26px;padding:24px}.si-seo-hero,.si-seo-split,.si-seo-grid,.si-requirements{grid-template-columns:1fr}}