/* 窓守り：XServerメールフォーム用デザイン上書き */
:root {
  --mm-ink: #0c2a30;
  --mm-deep: #0d4a58;
  --mm-accent: #1789ab;
  --mm-accent-ink: #0a5266;
  --mm-tint: #e7f3f5;
  --mm-warm: #d97b34;
  --mm-warm-dark: #b7621f;
  --mm-paper: #f2f7f8;
  --mm-line: #d7e4e6;
  --mm-muted: #4a6067;
  --mm-serif: "Hiragino Mincho ProN", "Yu Mincho", serif;
  --mm-sans: "Hiragino Sans", "Yu Gothic", sans-serif;
}

html {
  background: var(--mm-paper);
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  padding: 28px 0 60px;
  background: var(--mm-paper);
  color: var(--mm-ink);
  font: 16px/1.8 var(--mm-sans);
  letter-spacing: .01em;
}

a { color: var(--mm-accent-ink); }

#wrapper {
  width: min(860px, calc(100% - 36px));
  margin: 0 auto;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--mm-line);
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(12, 42, 48, .10);
}

#header {
  padding: 46px 36px 42px;
  background: linear-gradient(150deg, var(--mm-deep), #073440);
  color: #fff;
  text-align: center;
}

#header h1,
#header h2,
#header p,
#header a {
  color: #fff;
}

#header h1,
#header h2 {
  font-family: var(--mm-serif);
  font-size: clamp(27px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .04em;
}

#header p {
  max-width: 38em;
  margin: 12px auto 0;
  color: #cfe9ee;
}

#main {
  padding: 42px clamp(22px, 6vw, 64px) 52px;
}

.section {
  margin-bottom: 34px;
}

.section__ttl {
  margin: 0 0 22px;
  padding: 0 0 13px;
  background: transparent;
  border-bottom: 2px solid var(--mm-tint);
  color: var(--mm-deep);
  font-family: var(--mm-serif);
  font-size: 25px;
  font-weight: 600;
  line-height: 1.5;
}

.section__body {
  padding: 0;
}

#txt_explain,
.left_txt,
.block__body {
  color: var(--mm-muted);
}

.red_txt,
.red,
.required,
.must {
  color: #d93025 !important;
}

.table {
  width: 100%;
  margin: 0 0 24px;
  border: 1px solid var(--mm-line);
  border-radius: 14px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
}

.table th,
.table td {
  padding: 19px 20px;
  border: 0;
  border-bottom: 1px solid var(--mm-line);
  vertical-align: top;
}

.table tr:last-child th,
.table tr:last-child td {
  border-bottom: 0;
}

.table th {
  width: 32%;
  background: var(--mm-tint);
  color: var(--mm-deep);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.65;
}

.table td {
  background: #fff;
  color: var(--mm-ink);
  font-size: 15px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100% !important;
  max-width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  background: #fff;
  color: var(--mm-ink);
  border: 1px solid #bfd2d6;
  border-radius: 10px;
  box-shadow: none;
  font-size: 16px;
  line-height: 1.6;
  transition: border-color .15s ease, box-shadow .15s ease;
}

textarea {
  min-height: 170px;
  resize: vertical;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--mm-accent);
  box-shadow: 0 0 0 4px rgba(23, 137, 171, .13);
}

input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  margin-right: 7px;
  accent-color: var(--mm-accent);
  vertical-align: -3px;
}

label {
  display: inline-block;
  margin: 4px 18px 4px 0;
  line-height: 1.65;
}

.button_box {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 20px 0 0;
}

input[type="submit"],
input[type="button"],
button {
  min-height: 50px;
  padding: 12px 28px;
  border: 0;
  border-radius: 999px;
  background: var(--mm-warm);
  color: #fff;
  font-family: var(--mm-sans);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}

input[type="submit"]:hover,
input[type="button"]:hover,
button:hover {
  background: var(--mm-warm-dark);
  transform: translateY(-1px);
}

input[type="button"][value*="戻"],
input[type="submit"][value*="戻"] {
  background: #fff;
  color: var(--mm-deep);
  border: 1px solid var(--mm-accent);
}

.subNav {
  width: auto;
  float: none;
  padding: 0;
  text-align: center;
}

.subNav li {
  margin: 0 8px;
}

#footer {
  margin: 0;
  padding: 22px 20px;
  background: var(--mm-deep);
  color: #cfe9ee;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 640px) {
  body {
    padding: 10px 0 30px;
    font-size: 15px;
  }

  #wrapper {
    width: calc(100% - 20px);
    border-radius: 17px;
  }

  #header {
    padding: 34px 18px 31px;
  }

  #header h1,
  #header h2 {
    font-size: 26px;
  }

  #main {
    padding: 30px 16px 38px;
  }

  .section__ttl {
    margin-bottom: 16px;
    font-size: 21px;
  }

  .table,
  .table tbody,
  .table tr,
  .table th,
  .table td {
    display: block;
    width: 100% !important;
  }

  .table {
    border-radius: 12px;
  }

  .table tr {
    border-bottom: 1px solid var(--mm-line);
  }

  .table tr:last-child {
    border-bottom: 0;
  }

  .table th,
  .table td {
    border: 0;
  }

  .table th {
    padding: 13px 15px 9px;
    background: var(--mm-tint);
  }

  .table td {
    padding: 13px 15px 17px;
  }

  textarea {
    min-height: 150px;
  }

  label {
    display: block;
    margin-right: 0;
    padding: 2px 0;
  }

  .button_box {
    display: grid;
    grid-template-columns: 1fr;
  }

  input[type="submit"],
  input[type="button"],
  .button_box button {
    width: 100%;
  }
}

/* Mobile usability rebuild — 2026-08-13 */
@media (max-width: 640px) {
  body {
    padding: 6px 0 18px !important;
    font-size: 14px !important;
    line-height: 1.65 !important;
  }

  #wrapper {
    width: calc(100% - 12px) !important;
    margin: 0 auto !important;
    border-radius: 14px !important;
  }

  #header {
    padding: 24px 16px 22px !important;
  }

  #header p:first-child {
    margin-bottom: 5px !important;
    font-size: 12px !important;
  }

  #header h1 {
    margin-bottom: 12px !important;
    font-size: clamp(23px, 7vw, 28px) !important;
    line-height: 1.35 !important;
  }

  #header p:last-child {
    font-size: 13px !important;
    line-height: 1.7 !important;
  }

  #main {
    padding: 24px 12px 30px !important;
  }

  .section_ttl,
  #main h2 {
    margin-bottom: 16px !important;
    padding-bottom: 10px !important;
    font-size: 20px !important;
    line-height: 1.45 !important;
  }

  .table th,
  .table td,
  table th,
  table td {
    box-sizing: border-box !important;
  }

  .table th,
  table th {
    padding: 10px 12px 8px !important;
    font-size: 14px !important;
    line-height: 1.5 !important;
  }

  .table td,
  table td {
    padding: 10px 12px 12px !important;
    font-size: 14px !important;
    line-height: 1.5 !important;
  }

  input[type="text"],
  input[type="email"],
  input[type="tel"] {
    box-sizing: border-box !important;
    width: 100% !important;
    height: 46px !important;
    min-height: 46px !important;
    padding: 8px 10px !important;
    font-size: 16px !important;
    line-height: 1.3 !important;
  }

  textarea {
    box-sizing: border-box !important;
    width: 100% !important;
    height: 140px !important;
    min-height: 140px !important;
    padding: 10px !important;
    font-size: 16px !important;
    line-height: 1.55 !important;
  }

  /* XServer outputs each control immediately before its label. */
  td:has(> input[type="radio"]),
  td:has(> input[type="checkbox"]) {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px !important;
  }

  td:has(> input[type="radio"]) > input,
  td:has(> input[type="checkbox"]) > input {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: 0 !important;
    opacity: 0 !important;
  }

  td:has(> input[type="radio"]) > label,
  td:has(> input[type="checkbox"]) > label {
    box-sizing: border-box !important;
    display: flex !important;
    align-items: center !important;
    min-width: 0 !important;
    min-height: 44px !important;
    margin: 0 !important;
    padding: 8px 8px 8px 32px !important;
    position: relative !important;
    border: 1px solid #cbdde1 !important;
    border-radius: 9px !important;
    background: #fff !important;
    color: #143942 !important;
    font-size: 13px !important;
    line-height: 1.35 !important;
    cursor: pointer !important;
  }

  td:has(> input[type="radio"]) > label::before,
  td:has(> input[type="checkbox"]) > label::before {
    content: "" !important;
    position: absolute !important;
    left: 9px !important;
    top: 50% !important;
    width: 15px !important;
    height: 15px !important;
    border: 2px solid #7e969c !important;
    background: #fff !important;
    transform: translateY(-50%) !important;
  }

  td:has(> input[type="radio"]) > label::before {
    border-radius: 50% !important;
  }

  td:has(> input[type="checkbox"]) > label::before {
    border-radius: 4px !important;
  }

  td:has(> input[type="radio"]) > input:checked + label,
  td:has(> input[type="checkbox"]) > input:checked + label {
    border-color: #0b8fb3 !important;
    background: #eaf7fa !important;
  }

  td:has(> input[type="radio"]) > input:checked + label::after,
  td:has(> input[type="checkbox"]) > input:checked + label::after {
    content: "" !important;
    position: absolute !important;
    left: 14px !important;
    top: 50% !important;
    width: 7px !important;
    height: 7px !important;
    border-radius: 50% !important;
    background: #0b8fb3 !important;
    transform: translate(-50%, -50%) !important;
  }

  td:has(> input[type="checkbox"]) > input:checked + label::after {
    width: 8px !important;
    height: 4px !important;
    border: solid #0b8fb3 !important;
    border-width: 0 0 2px 2px !important;
    border-radius: 0 !important;
    background: transparent !important;
    transform: translate(-50%, -65%) rotate(-45deg) !important;
  }

  /* Privacy consent is a single full-width item. */
  tr:last-child td:has(> input[type="checkbox"]) {
    grid-template-columns: 1fr !important;
  }

  td > br:last-child {
    display: none !important;
  }

  .notice,
  #main > p {
    font-size: 13px !important;
    line-height: 1.75 !important;
  }

  input[type="submit"],
  button[type="submit"] {
    min-height: 50px !important;
    font-size: 16px !important;
  }
}