:root {
  --bg: #0f0f12;
  --card: #17171c;
  --text: #f4f4f5;
  --muted: #adadb8;
  --line: #2a2a32;
  --pink: #fe2c55;
  --cyan: #25f4ee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 20% -10%, rgba(37, 244, 238, 0.12), transparent 60%),
    radial-gradient(1000px 600px at 100% 0, rgba(254, 44, 85, 0.15), transparent 60%),
    var(--bg);
  padding: 24px 24px 48px;
}

.container {
  width: min(900px, 100%);
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0)) , var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: visible;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 24px 26px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(23, 23, 28, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px 20px 0 0;
}

.logo {
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: inherit;
  cursor: pointer;
  text-align: left;
  line-height: 1.35;
  transition: color 0.15s ease;
}

.logo:hover {
  color: var(--cyan);
}

.logo:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.badge {
  font-size: 12px;
  color: #fff;
  background: rgba(254, 44, 85, 0.95);
  border-radius: 999px;
  padding: 6px 10px;
  font-weight: 700;
}

.hero {
  padding: 34px 26px 10px;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: 0.3px;
}

.hero-title-line {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}

.hero-obs-logo {
  height: 1em;
  width: auto;
  flex-shrink: 0;
}

p {
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.panel {
  margin: 24px 26px 30px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  background: rgba(10, 10, 12, 0.45);
}

.steps {
  margin: 0;
  padding-left: 0;
  list-style-position: inside;
  color: #d9d9e0;
  line-height: 1.7;
  max-width: 520px;
}

.steps li {
  padding-left: 0;
}

.form-grid {
  margin-top: 6px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 520px;
}

.panel > .contract-link,
.panel > .agreement,
.panel > .actions,
.panel > .hint,
.panel > .error,
.panel > .status {
  max-width: 520px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

.label {
  font-size: 13px;
  color: #d8d8de;
  font-weight: 600;
}

input, select, textarea {
  width: 100%;
  background: #121218;
  color: #ececf1;
  border: 1px solid #2e2e39;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
  min-height: 86px;
  resize: vertical;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(37, 244, 238, 0.15);
}

.input-with-prefix {
  display: flex;
  align-items: stretch;
  width: 100%;
  border-radius: 10px;
}

.input-with-prefix:focus-within {
  box-shadow: 0 0 0 3px rgba(37, 244, 238, 0.15);
}

.input-with-prefix .input-prefix {
  display: flex;
  align-items: center;
  padding: 10px 0 10px 12px;
  background: #121218;
  color: #ececf1;
  border: 1px solid #2e2e39;
  border-right: none;
  border-radius: 10px 0 0 10px;
  font-size: 14px;
  font-weight: 600;
}

.input-with-prefix input {
  border-radius: 0 10px 10px 0;
  border-left: none;
  flex: 1;
  min-width: 0;
}

.input-with-prefix:focus-within .input-prefix,
.input-with-prefix:focus-within input {
  border-color: var(--cyan);
}

.input-with-prefix input:focus {
  box-shadow: none;
}

.field.is-invalid .label {
  color: #ffb8c6;
}

.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid .input-prefix {
  border-color: rgba(254, 44, 85, 0.85);
}

.field.is-invalid .input-with-prefix {
  box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.15);
}

.field.is-invalid .input-with-prefix:focus-within {
  box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.2);
}

.field.is-invalid .input-with-prefix:focus-within .input-prefix,
.field.is-invalid .input-with-prefix:focus-within input,
.field.is-invalid input:focus,
.field.is-invalid select:focus {
  border-color: rgba(254, 44, 85, 0.85);
  box-shadow: none;
}

.field-error {
  margin: 0;
  font-size: 12px;
  color: #ff8fa3;
  line-height: 1.5;
}

.agreement.is-invalid {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(254, 44, 85, 0.85);
  background: rgba(254, 44, 85, 0.08);
}

.agreement.is-invalid > span {
  color: #ffb8c6;
}

.agreement .field-error {
  grid-column: 1 / -1;
  margin: 4px 0 0 26px;
}

.agreement {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 16px 1fr;
  column-gap: 10px;
  row-gap: 4px;
  align-items: start;
  color: #d3d3dc;
  font-size: 13px;
  line-height: 1.6;
}

.agreement input {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  accent-color: var(--pink);
  grid-column: 1;
  grid-row: 1;
}

.agreement > span {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}

.actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contract-link {
  margin-top: 14px;
  display: inline-block;
  color: var(--cyan);
  font-size: 13px;
  text-decoration: none;
  font-weight: 600;
}

.contract-link:hover {
  text-decoration: underline;
}

button {
  appearance: none;
  border: none;
  cursor: pointer;
  font-weight: 700;
  border-radius: 12px;
  padding: 13px 18px;
  transition: transform 0.12s ease, filter 0.12s ease, box-shadow 0.12s ease;
}

button:active {
  transform: translateY(1px);
}

.primary {
  color: #fff;
  background: linear-gradient(90deg, var(--pink), #ff4f6d);
  box-shadow: 0 10px 24px rgba(254, 44, 85, 0.35);
}

.hint {
  margin-top: 14px;
  font-size: 13px;
  color: #9999a8;
}

.status {
  margin-top: 10px;
  font-size: 14px;
  color: #dedee6;
  min-height: 22px;
}

.error {
  margin-top: 10px;
  font-size: 13px;
  color: #ff8da5;
  min-height: 18px;
}

.guide {
  margin: 0 26px 32px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.guide-head {
  padding: 28px 0 8px;
}

.guide-head h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.25;
  color: var(--text);
}

.guide-head .guide-intro {
  margin-top: 12px;
  max-width: 640px;
}

.guide-step {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(10, 10, 12, 0.35);
}

.guide-media {
  background: #0c0c10;
  border-bottom: 1px solid var(--line);
}

.guide-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.guide-media--photo img {
  aspect-ratio: auto;
  object-fit: contain;
  padding: 12px;
  border-radius: 16px;
}

.guide-step .guide-media--photo {
  border-radius: 16px 16px 0 0;
  overflow: hidden;
}

.guide-step .guide-media--photo img {
  border-radius: 16px 16px 0 0;
  padding: 8px 8px 0;
}

.guide-media img[src*="step-01"] {
  border-radius: 16px;
}

.guide-body {
  padding: 18px 20px 22px;
}

.step-num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--pink);
  margin-bottom: 8px;
  line-height: 1.5;
}

.guide-body h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: #f2f2f6;
}

.guide-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
}

.guide-body ul {
  margin: 10px 0 0;
  padding-left: 1.2em;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.guide-body a {
  color: var(--cyan);
  font-weight: 600;
}

.guide-note {
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px dashed #3a3a46;
  background: rgba(37, 244, 238, 0.05);
  font-size: 13px;
  color: #b8b8c4;
  line-height: 1.65;
}

.form-caution {
  margin: 0 0 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(254, 44, 85, 0.35);
  background: rgba(254, 44, 85, 0.08);
  font-size: 13px;
  color: #ffb8c6;
  line-height: 1.75;
}

.form-caution strong {
  color: #ffd0d9;
  font-weight: 700;
}

.guide-caution {
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(254, 44, 85, 0.35);
  background: rgba(254, 44, 85, 0.08);
  font-size: 13px;
  color: #ffb8c6;
  line-height: 1.75;
}

.guide-caution strong {
  color: #ffd0d9;
  font-weight: 700;
}

.guide-subhead {
  margin: 36px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.guide-subhead h2 {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.3;
  color: var(--text);
}

.guide-subhead p {
  margin-top: 10px;
  max-width: 640px;
}

.guide-tabs {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.guide-tab {
  appearance: none;
  border: 1px solid #3a3a46;
  background: #121218;
  color: #c8c8d2;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.guide-tab:hover {
  border-color: #555;
  color: #ececf1;
}

.guide-tab.is-active {
  border-color: var(--pink);
  background: rgba(254, 44, 85, 0.12);
  color: #fff;
}

.guide-panel {
  display: none;
}

.guide-panel.is-active {
  display: block;
}

.guide-panel-label {
  margin: 18px 0 0;
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(37, 244, 238, 0.35);
  background: rgba(37, 244, 238, 0.08);
}

.footer {
  width: min(900px, 100%);
  margin: 24px auto 0;
  padding: 56px 26px 36px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(10, 10, 12, 0.6);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}

.footer-inner {
  display: grid;
  gap: 28px;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
    text-align: left;
    gap: 40px;
  }

  .footer-bottom {
    grid-column: 1 / -1;
    text-align: center;
  }
}

.footer-company {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 6px;
}

.footer-tagline {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--text);
}

.copyright {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

@media (max-width: 768px) {
  body {
    padding: 0 12px 32px;
  }

  .container {
    width: 100%;
    max-width: none;
    border-radius: 14px;
    border-left: 1px solid var(--line);
    border-right: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  }

  .header {
    padding: 14px 14px;
    align-items: flex-start;
    gap: 10px;
    border-radius: 14px 14px 0 0;
  }

  .logo {
    font-size: 15px;
    line-height: 1.35;
    flex: 1;
    min-width: 0;
  }

  .badge {
    flex-shrink: 0;
    font-size: 10px;
    padding: 5px 8px;
  }

  .hero {
    padding: 22px 14px 6px;
  }

  h1 {
    font-size: clamp(24px, 7vw, 32px);
  }

  .panel {
    margin: 12px 10px 16px;
    padding: 14px 12px;
    border-radius: 12px;
  }

  .steps,
  .form-grid,
  .panel > .contract-link,
  .panel > .agreement,
  .panel > .actions,
  .panel > .hint,
  .panel > .error,
  .panel > .status {
    max-width: none;
    width: 100%;
  }

  .actions {
    flex-direction: column;
  }

  .actions button {
    width: 100%;
    text-align: center;
  }

  .guide {
    margin: 0 10px 20px;
    padding-top: 4px;
  }

  .guide-head {
    padding: 20px 4px 4px;
  }

  .guide-subhead {
    margin-top: 20px;
    padding-top: 18px;
  }

  .guide-subhead h2,
  .guide-head h2 {
    font-size: 20px;
  }

  .guide-step {
    margin-top: 14px;
    border-radius: 10px;
  }

  .guide-media {
    margin: 0;
  }

  .guide-media img {
    aspect-ratio: auto;
    object-fit: contain;
    max-height: none;
  }

  .guide-media--photo img {
    padding: 6px 6px 0;
    border-radius: 12px 12px 0 0;
  }

  .guide-step .guide-media--photo {
    border-radius: 12px 12px 0 0;
  }

  .guide-step .guide-media--photo img {
    border-radius: 12px 12px 0 0;
  }

  .guide-media img[src*="step-01"] {
    border-radius: 0;
  }

  .guide-body {
    padding: 14px 12px 16px;
  }

  .guide-body h3 {
    font-size: 16px;
  }

  .guide-tabs {
    gap: 8px;
  }

  .guide-tab {
    flex: 1 1 100%;
    text-align: center;
    font-size: 12px;
    padding: 11px 10px;
  }

  .guide-note,
  .form-caution {
    font-size: 12px;
  }

  .footer {
    margin-top: 16px;
    padding: 40px 14px 28px;
    border-radius: 14px;
  }
}

/* ============================================================
   申請メニュー（OBS Studio / LIVE Studio / 通常配信 の切り替え）
   ============================================================ */

.apply-nav {
  display: flex;
  gap: 8px;
  padding: 14px 26px 0;
}

.apply-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 11px 12px;
  border: 1px solid #3a3a46;
  border-radius: 12px;
  background: #121218;
  color: #c8c8d2;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.apply-nav a:hover {
  border-color: #555;
  color: #ececf1;
}

.apply-nav a[aria-current="page"] {
  border-color: var(--pink);
  background: rgba(254, 44, 85, 0.12);
  color: #fff;
  cursor: default;
}

.apply-nav .apply-nav-sub {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #8f8f9d;
}

.apply-nav a[aria-current="page"] .apply-nav-sub {
  color: rgba(255, 255, 255, 0.72);
}

/* ============================================================
   申請メニュー（トップ選択ハブ）
   ============================================================ */

.hub-list {
  display: grid;
  gap: 14px;
  margin: 24px 26px 30px;
}

.hub-card {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10, 10, 12, 0.45);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.12s ease, box-shadow 0.15s ease;
}

.hub-card:hover {
  border-color: var(--pink);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.hub-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.hub-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #0c0c10;
}

.hub-icon img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.hub-icon svg {
  width: 26px;
  height: 26px;
}

.hub-body h3 {
  margin: 0 0 4px;
  font-size: 17px;
  color: #f2f2f6;
  line-height: 1.35;
}

.hub-body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
}

.hub-tag {
  display: inline-block;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid rgba(37, 244, 238, 0.35);
  background: rgba(37, 244, 238, 0.08);
}

.hub-arrow {
  font-size: 26px;
  color: var(--pink);
  font-weight: 700;
  line-height: 1;
  padding-right: 4px;
}

.hub-note {
  margin: 0 26px 32px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px dashed #3a3a46;
  background: rgba(37, 244, 238, 0.05);
  font-size: 13px;
  color: #b8b8c4;
  line-height: 1.65;
}

.hub-compare {
  margin: 0 26px 32px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.hub-compare h2 {
  margin: 28px 0 0;
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.3;
}

.hub-table-wrap {
  margin-top: 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.hub-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.7;
}

.hub-table th,
.hub-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.hub-table thead th {
  background: rgba(255, 255, 255, 0.03);
  color: #f2f2f6;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.hub-table tbody th {
  color: #d8d8de;
  font-weight: 600;
  white-space: nowrap;
}

.hub-table td {
  color: var(--muted);
}

.hub-table tbody tr:last-child th,
.hub-table tbody tr:last-child td {
  border-bottom: none;
}

@media (max-width: 768px) {
  .apply-nav {
    padding: 10px 10px 0;
    gap: 6px;
  }

  .apply-nav a {
    padding: 9px 6px;
    font-size: 11px;
    border-radius: 10px;
  }

  .apply-nav .apply-nav-sub {
    font-size: 9px;
  }

  .hub-list {
    margin: 12px 10px 16px;
    gap: 10px;
  }

  .hub-card {
    grid-template-columns: 44px 1fr;
    gap: 12px;
    padding: 14px;
    border-radius: 12px;
  }

  .hub-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .hub-arrow {
    display: none;
  }

  .hub-body h3 {
    font-size: 15px;
  }

  .hub-body p {
    font-size: 12px;
  }

  .hub-note,
  .hub-compare {
    margin: 0 10px 20px;
  }

  .hub-compare h2 {
    font-size: 20px;
    margin-top: 20px;
  }
}

/* ============================================================
   申請メニュー内「詳細」トグル（3つの違いの比較表）
   ============================================================ */

.nav-compare {
  margin: 10px 26px 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(10, 10, 12, 0.45);
  overflow: hidden;
}

.nav-compare summary {
  list-style: none;
  cursor: pointer;
  padding: 11px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  color: #c8c8d2;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav-compare summary::-webkit-details-marker {
  display: none;
}

.nav-compare summary:hover {
  color: #ececf1;
  background: rgba(255, 255, 255, 0.03);
}

.nav-compare summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.nav-compare-icon {
  flex-shrink: 0;
  color: var(--pink);
  font-size: 10px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.nav-compare[open] .nav-compare-icon {
  transform: rotate(180deg);
}

.nav-compare-body {
  padding: 0 16px 14px;
}

.nav-compare-scroll-hint {
  display: none;
  margin: 0 0 8px;
  font-size: 11px;
  color: #8f8f9d;
}

.nav-compare .hub-table-wrap {
  margin-top: 0;
}

.nav-compare-hint {
  margin: 10px 0 0;
  font-size: 12px;
  color: #8f8f9d;
  line-height: 1.6;
}

.hub-table col.is-current {
  background: rgba(254, 44, 85, 0.08);
}

.hub-table thead th.is-current {
  color: #ff8fa3;
}

@media (max-width: 768px) {
  .nav-compare {
    margin: 8px 10px 0;
    border-radius: 10px;
  }

  .nav-compare summary {
    padding: 10px 12px;
    font-size: 12px;
  }

  .nav-compare-body {
    padding: 0 12px 12px;
  }

  .nav-compare-scroll-hint {
    display: block;
  }

  .nav-compare .hub-table {
    min-width: 520px;
  }

  .nav-compare .hub-table th,
  .nav-compare .hub-table td {
    padding: 10px 12px;
  }

  .nav-compare-hint {
    font-size: 11px;
  }
}