/*
Theme Name: bizlegal
Theme URI: http://bizlegal.jp
Author: BizLegal Inc.
Author URI: http://bizlegal.jp
Description: 株式会社ビズリーガル コーポレートサイト用WordPressテーマ
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bizlegal
*/

/* ========================================
   株式会社ビズリーガル - Corporate Website
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #1a2744;
  --color-primary-light: #2d4a7a;
  --color-accent: #b8860b;
  --color-accent-light: #d4a843;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-gray: #f7f8fa;
  --color-bg-dark: #0f1923;
  --color-border: #e0e4ea;
  --font-ja: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --font-en: 'Inter', 'Noto Sans JP', sans-serif;
  --header-height: 80px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-ja);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.sp-only {
  display: none;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.header__logo-ja {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.header__logo-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header__nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 36px;
}

.header__nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--transition);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__nav-link--cta {
  background: var(--color-primary);
  color: #fff;
  padding: 10px 24px;
  border-radius: 4px;
  transition: background var(--transition);
}

.header__nav-link--cta::after {
  display: none;
}

.header__nav-link--cta:hover {
  background: var(--color-primary-light);
}

.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.header__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.header__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f1923 0%, #1a2744 40%, #2d4a7a 100%);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 95% 95%, rgba(15, 25, 35, 1) 0%, transparent 15%),
    radial-gradient(ellipse at 20% 50%, rgba(184, 134, 11, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(45, 74, 122, 0.2) 0%, transparent 50%);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="g" patternUnits="userSpaceOnUse" width="20" height="20"><circle cx="10" cy="10" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect fill="url(%23g)" width="100" height="100"/></svg>');
}

.hero__content {
  position: relative;
  text-align: center;
  padding: 0 24px;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.08em;
  line-height: 1.5;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: clamp(0.85rem, 1.5vw, 1.05rem);
  color: rgba(255, 255, 255, 0.75);
  line-height: 2;
  margin-bottom: 48px;
  font-weight: 300;
  letter-spacing: 0.04em;
}

.hero__cta {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 16px 48px;
  border-radius: 4px;
  letter-spacing: 0.08em;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.hero__cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(184, 134, 11, 0.3);
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero__scroll span {
  font-family: var(--font-en);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  20% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  80% { opacity: 1; transform: scaleY(1); transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header__en {
  display: block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-header__ja {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.section-header--light .section-header__en {
  color: var(--color-accent-light);
}

.section-header--light .section-header__ja {
  color: #ffffff;
}

/* --- Services --- */
.services {
  padding: 120px 0;
  background: var(--color-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 48px 36px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.service-card:hover {
  border-color: transparent;
  box-shadow: 0 12px 40px rgba(26, 39, 68, 0.1);
  transform: translateY(-4px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__number {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.service-card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
}

.service-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}

.service-card__title-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.service-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 20px;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-primary);
  background: var(--color-bg-gray);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

/* --- Company --- */
.company {
  padding: 120px 0;
  background: var(--color-bg-gray);
}

.company__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.company__message-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.8;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.company__message-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 2;
}

.company__table {
  width: 100%;
  border-collapse: collapse;
}

.company__table tr {
  border-bottom: 1px solid var(--color-border);
}

.company__table th,
.company__table td {
  padding: 16px 0;
  font-size: 0.9rem;
  text-align: left;
  vertical-align: top;
}

.company__table th {
  width: 120px;
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
  padding-right: 24px;
}

.company__table td {
  color: var(--color-text-light);
}

/* --- Contact --- */
.contact {
  padding: 120px 0;
  background: var(--color-bg-dark);
}

.contact__wrapper {
  max-width: 720px;
  margin: 0 auto;
}

.contact__lead {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin-bottom: 48px;
  line-height: 1.9;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.required {
  font-size: 0.7rem;
  color: var(--color-accent);
  margin-left: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
}

.form-select {
  appearance: none;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8"><path d="M1 1l5 5 5-5" stroke="rgba(255,255,255,0.5)" stroke-width="1.5" fill="none"/></svg>');
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.form-select option {
  background: var(--color-bg-dark);
  color: #ffffff;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  text-align: center;
  margin-top: 16px;
}

.form-button {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-ja);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 16px 64px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: all var(--transition);
}

.form-button:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(184, 134, 11, 0.3);
}

/* --- Footer --- */
.footer {
  background: #0a1018;
  padding: 48px 0 32px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo-ja {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.08em;
}

.footer__logo-en {
  display: block;
  font-family: var(--font-en);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.footer__nav {
  display: flex;
  gap: 32px;
}

.footer__nav a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: #ffffff;
}

.footer__copy {
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 32px;
  letter-spacing: 0.02em;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .sp-only {
    display: inline;
  }

  .header__hamburger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 100px 40px 40px;
    transition: right 0.4s ease;
    box-shadow: -4px 0 30px rgba(0, 0, 0, 0.1);
  }

  .header__nav.open {
    right: 0;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 0;
  }

  .header__nav-list li {
    width: 100%;
  }

  .header__nav-link {
    display: block;
    padding: 20px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .header__nav-link::after {
    display: none;
  }

  .header__nav-link--cta {
    margin-top: 24px;
    text-align: center;
    border-bottom: none;
    border-radius: 4px;
  }

  .hero__title {
    font-size: 1.8rem;
  }

  .hero__subtitle {
    font-size: 0.85rem;
  }

  .hero__cta {
    padding: 14px 36px;
    font-size: 0.9rem;
  }

  .services {
    padding: 80px 0;
  }

  .services__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .service-card {
    padding: 32px 24px;
  }

  .company {
    padding: 80px 0;
  }

  .company__content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .company__message-title {
    font-size: 1.25rem;
  }

  .contact {
    padding: 80px 0;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer__inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer__nav {
    gap: 24px;
  }

  .section-header {
    margin-bottom: 48px;
  }

  .section-header__ja {
    font-size: 1.5rem;
  }
}