/*
Theme Name: Task System
Theme URI: https://tasksystem.co.jp
Author: 合同会社タスクシステム
Description: 合同会社タスクシステム 公式ホームページテーマ
Version: 1.0
License: Private
*/

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

:root {
  --navy: #0d1b2e;
  --navy-mid: #1a2f4a;
  --navy-light: #243d5e;
  --accent: #00b4d8;
  --accent-bright: #48cae4;
  --accent-pale: #90e0ef;
  --white: #f0f4f8;
  --gray: #8899aa;
  --border: rgba(0,180,216,0.2);
  --font-main: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;
  --font-mono: 'Share Tech Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--navy);
  color: var(--white);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,27,46,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-icon {
  width: 40px; height: 40px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: bold;
  color: var(--navy);
  letter-spacing: -1px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name { font-size: 15px; font-weight: 700; color: var(--white); letter-spacing: 0.05em; }
.logo-sub { font-size: 10px; font-family: var(--font-mono); color: var(--accent); letter-spacing: 0.15em; }

nav { display: flex; gap: 0; }
nav a {
  display: block;
  padding: 0 1rem;
  height: 70px;
  line-height: 70px;
  color: var(--gray);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: color 0.2s;
  border-bottom: 2px solid transparent;
}
nav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(0,180,216,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,100,180,0.06) 0%, transparent 60%);
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,180,216,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
  width: 100%;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 2rem;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
  max-width: 700px;
}
.hero h1 em { font-style: normal; color: var(--accent-bright); }
.hero-desc {
  font-size: 1.05rem;
  color: rgba(240,244,248,0.7);
  max-width: 540px;
  margin-bottom: 2.5rem;
  font-weight: 300;
  line-height: 2;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--navy);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  padding: 14px 28px;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s;
}
.hero-cta:hover { background: var(--accent-bright); transform: translateY(-2px); }
.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--accent);
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label { font-size: 12px; color: var(--gray); letter-spacing: 0.05em; }

/* ===== SECTIONS ===== */
section { padding: 6rem 2rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: block;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 3rem;
  letter-spacing: 0.03em;
}

/* ===== SERVICES ===== */
#services { background: var(--navy-mid); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.service-card {
  background: var(--navy);
  padding: 2.5rem;
  transition: background 0.3s;
}
.service-card:hover { background: var(--navy-light); }
.service-icon {
  width: 52px; height: 52px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 22px;
}
.service-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--white); }
.service-desc { font-size: 0.88rem; color: var(--gray); line-height: 1.85; }

/* ===== ABOUT ===== */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-text p {
  color: rgba(240,244,248,0.75);
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 1rem;
  font-weight: 300;
}
.company-table { width: 100%; border-collapse: collapse; }
.company-table tr { border-bottom: 1px solid var(--border); }
.company-table td { padding: 1rem 0; font-size: 0.88rem; vertical-align: top; }
.company-table td:first-child {
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  width: 110px;
  padding-top: 1.1rem;
}
.company-table td:last-child { color: var(--white); font-weight: 400; }

/* ===== CONTACT ===== */
#contact { background: var(--navy-mid); }
.contact-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.contact-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1.5rem; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 1.2rem;
  font-size: 0.9rem;
  color: rgba(240,244,248,0.8);
}
.contact-detail-icon { font-size: 16px; margin-top: 2px; color: var(--accent); }
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 14px;
  color: var(--white);
  font-family: var(--font-main);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { height: 100px; resize: vertical; }
.form-submit {
  width: 100%;
  background: var(--accent);
  color: var(--navy);
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  padding: 12px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}
.form-submit:hover { background: var(--accent-bright); }

/* ===== FOOTER ===== */
footer {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-copy { font-size: 12px; color: var(--gray); font-family: var(--font-mono); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 12px; color: var(--gray); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  nav { display: none; }
  #about .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .contact-box { grid-template-columns: 1fr; gap: 2rem; }
  .hero-stats { gap: 2rem; flex-wrap: wrap; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}