/* ===========================
   lp-studio — 事業 HP
   Kicker / lp-studio
   mobile-first
=========================== */

:root {
  /* Palette */
  --ivory:        #f7f3ec;
  --ivory-light:  #faf8f4;
  --ivory-dark:   #ede8df;
  --charcoal:     #1a1a1a;
  --charcoal-mid: #3d3d3d;
  --charcoal-sub: #6b6b6b;
  --gold:         #c9a961;
  --gold-light:   #dfc07a;
  --gold-dark:    #a88840;
  --green:        #2a4a3e;
  --green-mid:    #3a6357;
  --green-sub:    rgba(42,74,62,0.08);
  --white:        #ffffff;
  --border:       #e0d8ca;
  --border-light: #ede9e2;

  /* Typography */
  --font-serif:   'Playfair Display', 'Georgia', serif;
  --font-sans:    'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --font-display: 'Oswald', 'Impact', sans-serif;

  /* Layout */
  --max-w: 1100px;
  --tr: all 0.22s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; color-scheme: light only; }
body {
  background: var(--ivory);
  color: var(--charcoal);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.85;
  overflow-x: hidden;
}
a { color: var(--green); text-decoration: none; transition: var(--tr); }
a:hover { color: var(--gold-dark); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.35; }

/* ── Container ─────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Buttons ───────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--tr);
  white-space: nowrap;
  text-decoration: none;
}
.btn-gold {
  background: var(--gold);
  color: var(--charcoal);
  border-color: var(--gold);
}
.btn-gold:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.55);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  color: var(--white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--green);
  border-color: var(--green);
}
.btn-outline-dark:hover {
  background: var(--green);
  color: var(--white);
}

/* ── Header / Nav ──────────────── */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  background: rgba(42,74,62,0.97);
  border-bottom: 1px solid rgba(201,169,97,0.25);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  height: 58px;
  padding: 0 20px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--white);
  text-transform: uppercase;
}
.nav-logo .k { color: var(--gold); }
.nav-links {
  display: none;
  list-style: none;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.8);
  font-weight: 400;
}
.nav-links a:hover { color: var(--gold); }
.nav-links a.active { color: var(--gold); font-weight: 600; }
.nav-links a.disabled { color: rgba(255,255,255,0.35); cursor: not-allowed; pointer-events: none; }
.nav-cta { display: none; padding: 8px 20px; font-size: 0.78rem; }
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: var(--tr);
}
/* mobile nav menu */
.mobile-nav {
  position: fixed;
  inset: 58px 0 auto 0;
  z-index: 199;
  background: var(--green);
  border-bottom: 1px solid rgba(201,169,97,0.25);
  padding: 20px;
  display: none;
}
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; }
.mobile-nav li { border-bottom: 1px solid rgba(255,255,255,0.08); }
.mobile-nav li:first-child { border-top: 1px solid rgba(255,255,255,0.08); }
.mobile-nav a {
  display: block;
  padding: 14px 4px;
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
}
.mobile-nav a:hover { color: var(--gold); }
@media (min-width: 768px) {
  .nav-links {
    display: flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .nav-cta { display: inline-flex; }
  .hamburger { display: none; }
  .mobile-nav { display: none !important; }
  .page-nav ul { justify-content: center; }
}

/* ── Hero ──────────────────────── */
.hero {
  background: var(--green);
  background-image:
    radial-gradient(ellipse 70% 60% at 20% 40%, rgba(201,169,97,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 60%);
  padding: 128px 20px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '♠ ♥ ♦ ♣';
  position: absolute;
  font-size: 100px;
  color: rgba(255,255,255,0.022);
  letter-spacing: 32px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  pointer-events: none;
  font-family: serif;
  user-select: none;
  line-height: 1;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero-title {
  font-size: clamp(2rem, 6.5vw, 3.4rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.25;
}
.hero-title em {
  font-style: italic;
  color: var(--gold);
}
.hero-sub {
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  color: rgba(255,255,255,0.78);
  max-width: 500px;
  margin: 0 auto 36px;
  line-height: 1.95;
}
.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
@media (min-width: 480px) {
  .hero-actions { flex-direction: row; justify-content: center; }
}
@media (min-width: 901px) {
  .hero { padding: 160px 20px 100px; }
  .hero::before { font-size: 160px; letter-spacing: 50px; }
}

/* ── Page Nav ──────────────────── */
.page-nav {
  background: var(--ivory-light);
  border-bottom: 1px solid var(--border-light);
  border-top: 1px solid var(--border-light);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-nav ul {
  display: flex;
  list-style: none;
  white-space: nowrap;
  padding: 0 16px;
  margin: 0 auto;
  max-width: var(--max-w);
}
.page-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--charcoal-sub);
  transition: var(--tr);
}
.page-nav a:hover { color: var(--gold-dark); }

/* ── Section generic ───────────── */
.section { padding: 72px 20px; scroll-margin-top: 58px; }
.section.alt { background: var(--white); }
.section-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.55rem, 4vw, 2.2rem);
  color: var(--charcoal);
  margin-bottom: 40px;
  font-weight: 700;
}
.section-desc {
  font-size: 0.95rem;
  color: var(--charcoal-sub);
  max-width: 620px;
  line-height: 1.9;
  margin-bottom: 40px;
}
@media (min-width: 901px) {
  .section { padding: 96px 20px; }
}

/* ── About ─────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.feature-card {
  background: var(--ivory-light);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  padding: 28px 24px;
  border-radius: 3px;
}
.feature-icon {
  width: 38px;
  height: 38px;
  color: var(--gold-dark);
  margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--charcoal);
}
.feature-card p {
  font-size: 0.88rem;
  color: var(--charcoal-sub);
  line-height: 1.75;
}
@media (min-width: 768px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Plans ─────────────────────── */
.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.plan-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
  transition: box-shadow 0.22s, transform 0.22s;
  position: relative;
}
@media (hover: hover) {
  .plan-card:hover {
    box-shadow: 0 10px 36px rgba(0,0,0,0.1);
    transform: translateY(-3px);
  }
}
.plan-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--gold);
  color: var(--charcoal);
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 2px;
  text-transform: uppercase;
}
.plan-header {
  background: var(--green);
  color: var(--white);
  padding: 22px 24px;
}
.plan-name {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  margin-bottom: 4px;
  text-transform: uppercase;
}
.plan-tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}
.plan-body { padding: 22px 24px; }
.plan-price {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 2px;
}
.plan-price-unit {
  font-size: 0.75rem;
  color: var(--charcoal-sub);
  margin-bottom: 18px;
}
.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 20px;
}
.plan-features li {
  font-size: 0.86rem;
  color: var(--charcoal-mid);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold-dark);
  font-weight: 700;
}
.plans-note {
  font-size: 0.8rem;
  color: var(--charcoal-sub);
  text-align: center;
  line-height: 1.8;
}
@media (min-width: 768px) {
  .plans-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Samples ───────────────────── */
.samples-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 16px;
}
.sample-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
  transition: box-shadow 0.22s;
}
@media (hover: hover) {
  .sample-card:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.09); }
}
.sample-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.sample-thumb.cyber {
  background: #18181e;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.18em;
  color: #5a8ae8;
}
.sample-thumb.cyber::after {
  content: '♠ ♥ ♦ ♣';
  position: absolute;
  font-size: 48px;
  color: rgba(90,138,232,0.08);
  letter-spacing: 12px;
}
.sample-thumb.placeholder {
  background: var(--ivory-dark);
  flex-direction: column;
  gap: 8px;
  color: var(--charcoal-sub);
  font-size: 0.85rem;
  text-align: center;
  padding: 20px;
}
.placeholder-icon {
  font-size: 2rem;
  opacity: 0.35;
}
.sample-info { padding: 18px 20px; }
.sample-type {
  font-family: var(--font-display);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin-bottom: 5px;
}
.sample-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--charcoal);
  margin-bottom: 6px;
}
.sample-desc {
  font-size: 0.84rem;
  color: var(--charcoal-sub);
  margin-bottom: 14px;
  line-height: 1.65;
}
.sample-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.tag {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 2px;
  background: var(--green-sub);
  color: var(--green);
  border: 1px solid rgba(42,74,62,0.2);
  font-family: var(--font-display);
  letter-spacing: 0.05em;
}
@media (min-width: 768px) {
  .samples-grid { grid-template-columns: repeat(3, 1fr); }
  .sample-thumb { height: 220px; }
}

/* ── Process ───────────────────── */
.process-list {
  list-style: none;
  max-width: 680px;
}
.process-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  padding-bottom: 28px;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 21px;
  top: 44px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.step-body { padding-top: 10px; }
.step-body h3 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 4px;
}
.step-body p {
  font-size: 0.86rem;
  color: var(--charcoal-sub);
  line-height: 1.75;
}

/* ── Profile ───────────────────── */
.profile-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.profile-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--gold);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.profile-role {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.profile-name {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 14px;
}
.profile-bio {
  font-size: 0.92rem;
  color: var(--charcoal-mid);
  line-height: 1.9;
  max-width: 620px;
}
.profile-bio p + p { margin-top: 0.9em; }
.profile-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: var(--ivory-dark);
  border-left: 4px solid var(--gold);
  border-radius: 0 3px 3px 0;
  font-size: 0.85rem;
  color: var(--charcoal-sub);
  line-height: 1.7;
  max-width: 620px;
}
@media (min-width: 640px) {
  .profile-inner { flex-direction: row; align-items: flex-start; gap: 40px; }
  .profile-photo { width: 120px; height: 120px; font-size: 1.4rem; }
}

/* ── Contact form ──────────────── */
.contact-intro {
  font-size: 0.92rem;
  color: var(--charcoal-sub);
  line-height: 1.85;
  max-width: 620px;
  margin-bottom: 32px;
}
.inquiry-form {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--charcoal);
}
.form-label .req {
  color: var(--gold-dark);
  margin-left: 3px;
  font-size: 0.72rem;
}
.form-input,
.form-select,
.form-textarea {
  padding: 11px 13px;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.93rem;
  color: var(--charcoal);
  background: var(--white);
  transition: border-color 0.18s;
  width: 100%;
  -webkit-appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--green);
}
.form-textarea { resize: vertical; min-height: 110px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 480px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}
.radio-group,
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.radio-label,
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--charcoal-mid);
  cursor: pointer;
  line-height: 1.5;
}
.radio-label input,
.checkbox-label input {
  accent-color: var(--green);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}
.form-hint {
  font-size: 0.78rem;
  color: var(--charcoal-sub);
  margin-top: 2px;
}
.form-privacy {
  font-size: 0.8rem;
  color: var(--charcoal-sub);
  line-height: 1.7;
}
.form-privacy a { color: var(--green); text-decoration: underline; }
.btn-submit { width: 100%; max-width: 320px; padding: 15px; }
.form-state {
  max-width: 640px;
  padding: 18px 22px;
  border-radius: 4px;
  font-size: 0.9rem;
  line-height: 1.7;
}
.form-state.success { background: #edf7ed; color: #1b5e20; border: 1px solid #a5d6a7; }
.form-state.error   { background: #fdecea; color: #b71c1c; border: 1px solid #ef9a9a; }

/* ── FAQ ───────────────────────── */
.faq-list {
  max-width: 700px;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 17px 2px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--charcoal);
  cursor: pointer;
  list-style: none;
  gap: 14px;
  line-height: 1.5;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--gold-dark);
  flex-shrink: 0;
  transition: transform 0.18s;
}
.faq-item[open] .faq-q::after { transform: rotate(45deg); }
.faq-a {
  padding: 0 2px 18px;
  font-size: 0.88rem;
  color: var(--charcoal-sub);
  line-height: 1.85;
}

/* ── Footer ────────────────────── */
.footer {
  background: var(--green);
  color: rgba(255,255,255,0.78);
  padding: 52px 20px 32px;
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.footer-brand {}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer-logo span { color: var(--gold); }
.footer-by {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.42);
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}
.footer-nav a {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.68);
}
.footer-nav a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.76rem;
  color: rgba(255,255,255,0.42);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--gold); }
@media (min-width: 768px) {
  .footer-grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}