/* ============================================================
   Hack The Box LP – Modern CSS v3
   画像なし・CSS表現・モダンデザイン版
============================================================ */

:root{
  --navy:#0B121F;
  --navy-light:#141D2B;
  --green-neon:#9FEF00;
  --green:#32A52C;
  --bg-light:#F5F7F2;
  --white:#fff;
  --gray-100:#f8f9fa;
  --gray-200:#e9ecef;
  --gray-600:#6c757d;
  --header-h:64px;
  --radius:0px;
  --radius-sm:0px;
  --radius-pill:50px;
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow-md:0 8px 30px rgba(0,0,0,.08);
  --shadow-lg:0 16px 48px rgba(0,0,0,.12);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
  --max-w:1200px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans JP","游ゴシック","Yu Gothic",YuGothic,system-ui,-apple-system,sans-serif;
  color:var(--navy);line-height:1.9;font-weight:500;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
.pc-only{display:block;}

/* ============================================================
   HEADER – Glassmorphism, compact right-aligned nav
============================================================ */
.header{
  position:fixed;top:0;left:0;width:100%;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(0,0,0,.06);
  z-index:100;
}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:var(--max-w);margin:0 auto;
  height:var(--header-h);padding:0 24px;
}
.header__logo img{height:32px;width:auto;}
.header__burger{
  display:none;background:none;border:none;cursor:pointer;
  width:32px;height:24px;position:relative;padding:0;
}
.header__burger span{
  display:block;width:100%;height:2px;
  background:var(--navy);border-radius:2px;
  position:absolute;left:0;transition:var(--transition);
}
.header__burger span:nth-child(1){top:0;}
.header__burger span:nth-child(2){top:11px;}
.header__burger span:nth-child(3){top:22px;}
.header__nav{display:flex;align-items:center;gap:8px;}
.header__menu{display:flex;gap:0;}
.header__menu a{
  display:block;padding:8px 16px;
  font-weight:600;font-size:13px;color:var(--navy);
  border-radius:var(--radius-sm);transition:var(--transition);
}
.header__menu a:hover{background:var(--bg-light);color:var(--green);}
.header__actions{display:flex;gap:8px;margin-left:12px;}

/* ============================================================
   HERO – Pure CSS gradient
============================================================ */
.hero{
  margin-top:0;padding-top:var(--header-h);min-height:70vh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;color:#fff;position:relative;overflow:hidden;
  background:#0B121F;
}
.hero__video{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
  z-index:0;pointer-events:none;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(
      ellipse at 20% 50%,
      rgba(159, 239, 0, 0.14) 0%,   /* 0.08 → 0.14 */
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(50, 165, 44, 0.12) 0%,  /* 0.06 → 0.12 */
      transparent 50%
    ),
    linear-gradient(
      160deg,
      rgba(11, 18, 31, 0.65) 0%,   /* 0.55 → 0.65 */
      rgba(20, 29, 43, 0.55) 40%, /* 0.45 → 0.55 */
      rgba(26, 41, 64, 0.5) 100%  /* 0.40 → 0.50 */
    );
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(159,239,0,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(159,239,0,.04) 1px,transparent 1px);
  background-size:60px 60px;pointer-events:none;z-index:2;
}
.hero__inner{padding:0 6%;position:relative;z-index:3;}
.hero__logo-img{
  display:block;margin:0 auto 32px;
  max-width:min(340px,60vw);height:auto;
  filter:drop-shadow(0 0 32px rgba(159,239,0,.45));
}
.hero__brand{
  font-size:clamp(40px,8vw,80px);font-weight:900;
  color:var(--green-neon);letter-spacing:.08em;margin-bottom:20px;
  text-shadow:0 0 60px rgba(159,239,0,.3);
}
.hero__title{
  font-size:clamp(26px,4.5vw,52px);font-weight:900;
  margin-bottom:28px;line-height:1.45;
  text-shadow:0 2px 24px rgba(0,0,0,.5);
  letter-spacing:.01em;
  white-space:nowrap;
}
.hero__lead{
  margin-bottom:16px;
}
.hero__lead-badge{
  display:inline-block;
  font-size:clamp(14px,2vw,18px);
  font-weight:800;
  color:var(--navy);
  background:var(--green-neon);
  padding:8px 28px;
  border-radius:var(--radius-pill);
  letter-spacing:.06em;
  box-shadow:0 0 24px rgba(159,239,0,.5);
}
.hero__sub{
  font-size:clamp(14px,1.8vw,17px);
  opacity:1;
  max-width:640px;margin:0 auto;
  color:rgba(255,255,255,.88);
  font-weight:600;
  letter-spacing:.02em;
  border-top:1px solid rgba(255,255,255,.15);
  padding-top:16px;
  margin-top:4px;
}

/* ============================================================
   SUB NAV (緑帯)
============================================================ */
.gnav{background:var(--green);display:flex;justify-content:center;}
.gnav__list{max-width:var(--max-w);width:100%;display:flex;}
.gnav__list li{flex:1;text-align:center;}
.gnav__list li + li{border-left:1px solid rgba(255,255,255,.25);}
.gnav__list a{
  display:flex;align-items:center;justify-content:center;
  height:56px;color:#fff;font-weight:600;font-size:14px;
  transition:var(--transition);
}
.gnav__list a:hover{background:rgba(255,255,255,.12);}

/* ============================================================
   SECTION TITLE
============================================================ */
.section-title{
  text-align:center;font-size:clamp(26px,4vw,38px);font-weight:800;
  padding:100px 0 50px;letter-spacing:.02em;
}
.section-title::after{
  content:"";display:block;width:48px;height:3px;
  background:var(--green-neon);margin:20px auto 0;border-radius:2px;
}
.section-title--white{color:#fff;}
.section-title--white::after{background:rgba(255,255,255,.6);}

/* ============================================================
   INTRO
============================================================ */
.intro{
  background:var(--navy);color:var(--green-neon);text-align:center;
  font-size:clamp(16px,2.5vw,22px);font-weight:700;
  padding:64px 5%;letter-spacing:.02em;
}

/* ============================================================
   CTA
============================================================ */
.cta{text-align:center;padding:64px 5%;}
.cta--dark{background:var(--navy);color:#fff;}
.cta p{font-size:18px;margin-bottom:24px;line-height:1.7;}

/* ============================================================
   Button
============================================================ */
.btn{
  display:inline-block;padding:14px 36px;font-weight:700;
  border-radius:var(--radius-pill);transition:var(--transition);
  font-size:14px;cursor:pointer;border:none;
}
.btn--primary{background:var(--green-neon);color:var(--navy);}
.btn--primary:hover{
  background:#b4ff33;transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(159,239,0,.3);
}
.btn--secondary{
  border:2px solid var(--green-neon);color:var(--green-neon);background:transparent;
}
.btn--secondary:hover{
  background:var(--green-neon);color:var(--navy);transform:translateY(-2px);
}
.btn--lg{font-size:16px;padding:18px 48px;}

/* ============================================================
   POINTS（理由4つ）
============================================================ */
.points{
  background:linear-gradient(160deg,var(--green) 0%,#28862a 100%);
  padding:0 5% 120px;position:relative;
}
.points__grid{
  max-width:var(--max-w);margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.points__card{
  text-align:center;color:#fff;padding:48px 24px 40px;
  background:rgba(255,255,255,.08);border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);transition:var(--transition);
}
.points__card:hover{transform:translateY(-4px);background:rgba(255,255,255,.14);}
.points__card::before{
  content:attr(data-num);font-size:56px;font-weight:900;
  color:var(--green-neon);opacity:.35;display:block;
  margin-bottom:12px;line-height:1;
}
.points__card-title{font-size:20px;font-weight:800;margin-bottom:16px;line-height:1.4;}
.points__card-text{font-size:14px;line-height:1.9;text-align:left;opacity:.9;}

/* ============================================================
   POINT DETAIL（画像なし・全文字）
============================================================ */
.point-detail{background:var(--white);padding:100px 5%;}
.point-detail__block{max-width:860px;margin:0 auto 100px;}
.point-detail__block:last-child{margin-bottom:0;}
.point-detail__title{
  font-size:clamp(22px,3vw,28px);font-weight:800;
  margin-bottom:24px;padding-bottom:12px;
  border-bottom:3px solid var(--green-neon);display:inline-block;
}
.point-detail__lead{font-size:16px;line-height:2;margin-bottom:28px;color:var(--navy);}
.point-detail__inner{margin-bottom:8px;}
.point-detail__sub-title{
  display:inline-block;background:var(--navy);color:#fff;
  padding:6px 18px;font-weight:700;font-size:14px;
  margin:20px 0 12px;border-radius:var(--radius-sm);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.tag-list li{
  background:var(--navy);color:#fff;padding:6px 16px;
  border-radius:var(--radius-pill);font-size:13px;font-weight:500;
}
.info-box{
  background:var(--bg-light);border-left:4px solid var(--green-neon);
  padding:24px 28px;margin-top:24px;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}

/* ============================================================
   CASES（活用シーン）
============================================================ */
.cases{background:var(--bg-light);padding:0 5% 100px;}
.cases__grid{
  max-width:var(--max-w);margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
}
.case-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:var(--transition);position:relative;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.case-card::before{
  content:"";display:block;height:6px;
  background:linear-gradient(90deg,var(--green-neon),var(--green));
}
.case-card--accent-1::before{background:linear-gradient(90deg,var(--green-neon) 0%,#00d4aa 100%);}
.case-card--accent-2::before{background:linear-gradient(90deg,#00d4aa 0%,var(--green) 100%);}
.case-card--accent-3::before{background:linear-gradient(90deg,var(--green) 0%,var(--green-neon) 100%);}
.case-card__title{font-size:17px;font-weight:700;padding:24px 24px 14px;line-height:1.6;}
.case-card__tags{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 16px;}
.case-card__tags li{
  background:var(--navy);color:#fff;padding:4px 12px;
  border-radius:var(--radius-pill);font-size:11px;font-weight:500;
}
.case-card__detail{padding:0 24px 28px;}
.case-card__detail li{position:relative;padding-left:1.6em;font-size:13px;line-height:2;}
.case-card__detail li::before{
  content:"\2713";position:absolute;left:0;color:var(--green);font-weight:bold;
}

/* ============================================================
   PRICING（サービス内容）
============================================================ */
.pricing{background:var(--white);padding:0 5% 100px;}
.pricing__wrap{
  max-width:1160px;margin:0 auto;background:var(--white);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);
}
.pricing__table{width:100%;border-collapse:collapse;font-size:13px;table-layout:fixed;}
.pricing__table thead{background:var(--navy);color:#fff;}
.pricing__table th{
  padding:14px 18px;font-weight:700;font-size:13px;
  text-align:left;letter-spacing:.04em;
}
.pricing__table th:nth-child(1){width:16%;}
.pricing__table th:nth-child(2){width:48%;}
.pricing__table th:nth-child(3){width:20%;}
.pricing__table th:nth-child(4){width:16%;}
.pricing__table td{
  padding:16px 18px;text-align:left;
  vertical-align:middle;
}
.pricing__table tbody tr + tr td{
  border-top:1px solid var(--gray-200);
}
.pricing__table th:last-child,
.pricing__table td:last-child{
  width:100px;min-width:100px;text-align:center;padding:22px 10px;
}
.pricing__table tbody tr:hover{background:var(--gray-100);}
.pricing__label{font-weight:700;white-space:nowrap;color:var(--navy);}
.pricing__badge{
  display:inline-block;padding:4px 12px;border-radius:4px;
  font-size:11px;font-weight:700;white-space:nowrap;
  line-height:1.6;letter-spacing:.03em;
}
.pricing__badge--basic{background:var(--green-neon);color:var(--navy);}
.pricing__badge--option{
  background:transparent;color:var(--navy);
  border:1.5px solid var(--gray-600);color:var(--gray-600);
}
.pricing__note{text-align:center;padding:20px;font-size:13px;color:var(--gray-600);}

/* ============================================================
   FLOW（導入の流れ）
============================================================ */
.flow{background:var(--navy);padding:0 5% 100px;}
.flow__list{max-width:1000px;margin:0 auto;display:flex;gap:0;}
.flow__item{flex:1;text-align:center;color:#fff;padding:32px 16px;position:relative;}
.flow__item:not(:last-child)::after{
  content:"";position:absolute;top:50%;right:-10px;
  transform:translateY(-50%);border:10px solid transparent;
  border-left-color:var(--green-neon);z-index:1;opacity:.5;
}
.flow__num{
  display:inline-block;background:var(--green-neon);color:var(--navy);
  font-weight:900;font-size:11px;padding:5px 14px;
  border-radius:var(--radius-pill);margin-bottom:14px;letter-spacing:.06em;
}
.flow__title{font-size:16px;font-weight:700;margin-bottom:10px;color:var(--green-neon);}
.flow__text{font-size:12px;line-height:1.8;opacity:.7;}

/* ============================================================
   FAQ（よくある質問）
============================================================ */
.faq{
  background:linear-gradient(160deg,var(--green) 0%,#28862a 100%);
  padding:0 5% 100px;
}
.faq__list{max-width:780px;margin:0 auto;}
.faq__item{
  background:#fff;border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq__item summary{
  padding:20px 52px 20px 24px;font-weight:700;font-size:15px;
  cursor:pointer;position:relative;list-style:none;transition:var(--transition);
}
.faq__item summary:hover{background:var(--gray-100);}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary::after{
  content:"+";position:absolute;right:24px;top:50%;
  transform:translateY(-50%);font-size:22px;color:var(--green);
  font-weight:bold;width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--bg-light);transition:var(--transition);
}
.faq__item[open] summary::after{
  content:"\2212";background:var(--green-neon);color:var(--navy);
}
.faq__answer{padding:0 24px 24px;font-size:14px;line-height:2;color:var(--gray-600);}

/* ============================================================
   COMPANY（会社概要）
============================================================ */
.company{background:var(--bg-light);padding:0 5% 80px;}
.company__address{text-align:center;font-size:15px;margin-bottom:12px;color:var(--navy);}
.company__logo-wrap{text-align:center;margin-top:32px;}
.company__logo{height:auto;opacity:.85;}
.company a{
  display:block;text-align:center;color:var(--green);
  font-weight:600;font-size:14px;transition:var(--transition);
}
.company a:hover{opacity:.7;}

/* ============================================================
   PAGE TOP
============================================================ */
.page-top{
  position:fixed;bottom:28px;right:28px;width:48px;height:48px;
  background:var(--green-neon);color:var(--navy);
  font-size:16px;font-weight:bold;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;box-shadow:var(--shadow-md);
  opacity:0;pointer-events:none;transition:var(--transition);z-index:99;
}
.page-top.visible{opacity:1;pointer-events:auto;}
.page-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}

/* ============================================================
   FOOTER
============================================================ */
.footer{background:var(--navy);color:#fff;text-align:center;padding:48px 20px 32px;}
.footer__logo{height:28px;width:auto;margin-bottom:16px;}
.footer__copy{font-size:12px;opacity:.5;}

/* ============================================================
   RESPONSIVE
============================================================ */
@media(max-width:768px){
  .pc-only{display:none!important;}

  /* Burger */
  .header__burger{
    display:flex;flex-direction:column;justify-content:center;
    gap:6px;width:32px;height:32px;z-index:110;
  }
  .header__burger.active span:nth-child(1){transform:translateY(8px) rotate(45deg);}
  .header__burger.active span:nth-child(2){opacity:0;}
  .header__burger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

  /* Nav drawer */
  .header__nav{
    position:fixed;top:var(--header-h);right:0;width:100%;
    max-height:0;overflow:hidden;background:var(--white);
    box-shadow:0 8px 32px rgba(0,0,0,.1);
    flex-direction:column;align-items:stretch;gap:0;
    transition:max-height .4s cubic-bezier(.4,0,.2,1);z-index:99;
  }
  .header__nav.open{max-height:100vh;overflow-y:auto;}
  .header__menu{flex-direction:column;gap:0;padding:8px 0;}
  .header__menu a{
    padding:14px 24px;font-size:15px;border-radius:0;
    border-bottom:1px solid var(--gray-200);
  }
  .header__actions{
    flex-direction:column;padding:16px 24px 24px;gap:10px;margin-left:0;
  }
  .header__actions .btn{width:100%;text-align:center;font-size:15px;padding:14px 20px;}

  /* Layout */
  .points__grid{grid-template-columns:1fr 1fr;}
  .section-title{padding:60px 0 30px;}
  .btn--lg{width:90%;max-width:340px;}
  .cases__grid{grid-template-columns:1fr;}
  .hero__title{white-space:normal;}
  /* pricing table – スマホ: 備考列を非表示にして3列構成に */
  .pricing__table{font-size:12px;table-layout:fixed;}
  .pricing__table th:nth-child(3),
  .pricing__table td:nth-child(3){display:none;}
  .pricing__table th:nth-child(1){width:28%;}
  .pricing__table th:nth-child(2){width:52%;}
  .pricing__table th:nth-child(4){width:20%;}
  .pricing__table th,.pricing__table td{padding:12px 8px;}
  .pricing__table th:last-child,
  .pricing__table td:last-child{width:72px;min-width:72px;padding:12px 4px;}
  .pricing__label{white-space:normal;}
  .pricing__badge{padding:4px 6px;font-size:10px;line-height:1.4;}
  .flow__list{flex-direction:column;}
  .flow__item:not(:last-child)::after{display:none;}
  .faq__item summary{font-size:14px;padding:16px 44px 16px 16px;}
  .gnav__list a{font-size:12px;height:48px;}
}
@media(max-width:480px){
  .points__grid{grid-template-columns:1fr;}
}