/* =========================================================
   MIRAGE — Model Registration form
   Luxury / Minimal / Editorial · mobile-first
   (relies on tokens defined in style.css :root)
   ========================================================= */

/* [hidden] must win over class-level display rules (.btn is inline-block, etc.) */
[hidden] { display: none !important; }

.reg-body {
  /* Softer, warmer palette than the main site's hard black/white.
     Re-tinting these tokens softens every element on this page at once
     (text, buttons, chips, tags, hairlines, progress bar). */
  --black: #3b3733;       /* soft warm charcoal (was near-black #0a0a0a) */
  --off-white: #f6f4f1;   /* warm paper */
  --gray: #979289;        /* soft warm gray */
  --gray-light: #e6e1da;  /* soft warm hairline */
  background: var(--off-white);
  color: var(--black);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

/* ---- Header ---- */
.reg-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 60px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(245, 244, 242, 0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-light);
}

.reg-header .logo { color: var(--black); }
.reg-header .logo-name { font-size: 22px; }
.reg-header .logo-sub { color: var(--gray); }

.reg-exit {
  font-size: 20px;
  color: var(--gray);
  line-height: 1;
  padding: 8px;
  transition: color 0.3s var(--ease);
}
.reg-exit:hover { color: var(--black); }

/* ---- Layout ---- */
.reg-main {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 20px 160px;
}

.reg-intro {
  padding: 40px 0 26px;
}
.reg-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gray);
  margin-bottom: 14px;
}
.reg-title {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: clamp(38px, 11vw, 60px);
  letter-spacing: 0.06em;
  line-height: 1.02;
  color: var(--black);
  margin-bottom: 20px;
}
.reg-lead {
  font-size: 13.5px;
  line-height: 1.9;
  color: #4a4a4a;
}

/* ---- Progress ---- */
.reg-progress {
  position: sticky;
  top: 60px;
  z-index: 40;
  background: var(--off-white);
  padding: 16px 0 14px;
  margin-bottom: 10px;
}
.reg-progress-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}
.reg-step-index {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--black);
}
.reg-step-name {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray);
}
.reg-progress-track {
  height: 2px;
  background: var(--gray-light);
  overflow: hidden;
}
.reg-progress-fill {
  display: block;
  height: 100%;
  width: 16.66%;
  background: var(--black);
  transition: width 0.5s var(--ease);
}

/* ---- Steps ---- */
.reg-step {
  border: none;
  padding: 18px 0 0;
  margin: 0;
  min-inline-size: auto;
  animation: regFade 0.5s var(--ease);
}
@keyframes regFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reg-legend {
  padding: 0;
  margin-bottom: 26px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gray);
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.reg-legend span {
  font-family: var(--font-jp);
  font-size: 19px;
  letter-spacing: 0.06em;
  color: var(--black);
}

.reg-subhead {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--black);
  margin: 34px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-light);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---- Fields ---- */
.field { margin-bottom: 24px; }

.field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.field-row .field { margin-bottom: 0; }
.field-row-3 { grid-template-columns: repeat(3, 1fr); gap: 12px; }

label {
  display: block;
  font-family: var(--font-jp);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--black);
  margin-bottom: 10px;
  line-height: 1.5;
}

.visually-hidden-label { visibility: hidden; }

.req {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--black);
  padding: 2px 6px;
  margin-left: 7px;
  vertical-align: middle;
}

.tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  margin-left: 6px;
  vertical-align: middle;
  border: 1px solid var(--gray-light);
  color: var(--gray);
}
.tag-public { border-color: #b9c7bd; color: #5c7a66; }
.tag-private { border-color: #cbb6b6; color: #8a6a6a; }
.tag-opt { border-color: var(--gray-light); color: var(--gray); }

.hint {
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--gray);
  margin-top: 8px;
}
.hint-block { margin: 0 0 22px; }
.char-count { text-align: right; }

/* ---- Inputs ---- */
input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  font-family: var(--font-jp);
  font-size: 16px; /* 16px avoids iOS zoom-on-focus */
  color: var(--black);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-light);
  padding: 12px 2px;
  transition: border-color 0.3s var(--ease);
  -webkit-appearance: none;
  appearance: none;
  border-radius: 0;
}
textarea {
  resize: vertical;
  line-height: 1.7;
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--black);
}
input::placeholder,
textarea::placeholder { color: #b7b5b1; }

select {
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' fill='none' stroke='%238a8a8a' stroke-width='1.2'/></svg>");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 24px;
}

.unit-input {
  position: relative;
  display: flex;
  align-items: baseline;
}
.unit-input input { padding-right: 30px; }
.unit-input .unit {
  position: absolute;
  right: 4px;
  bottom: 12px;
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--gray);
  pointer-events: none;
}

.age-output {
  display: block;
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: 0.04em;
  padding: 8px 2px;
  border-bottom: 1px solid var(--gray-light);
}
.age-output::after { content: ' 歳'; font-size: 13px; color: var(--gray); }
.age-output:empty::after,
.age-output.is-empty::after { content: ''; }

/* invalid highlight */
.field.invalid input,
.field.invalid select,
.field.invalid textarea,
.invalid > .radio-group,
.invalid > .check-grid {
  border-color: #b00020;
}
.field-error {
  color: #b00020;
  font-size: 11.5px;
  margin-top: 6px;
}

/* ---- Radio ---- */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}
.radio-item {
  margin: 0;
  cursor: pointer;
}
.radio-item input { position: absolute; opacity: 0; width: 0; height: 0; }
.radio-item span {
  display: inline-block;
  padding: 11px 22px;
  border: 1px solid var(--gray-light);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: #444;
  transition: all 0.25s var(--ease);
}
.radio-item input:checked + span {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.radio-item input:focus-visible + span { outline: 2px solid var(--black); outline-offset: 2px; }

/* ---- Checkbox chips ---- */
.check-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding-top: 4px;
}
.check-chip { margin: 0; cursor: pointer; }
.check-chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.check-chip span {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--gray-light);
  font-size: 13px;
  color: #444;
  transition: all 0.25s var(--ease);
}
.check-chip input:checked + span {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.check-chip input:focus-visible + span { outline: 2px solid var(--black); outline-offset: 2px; }

/* ---- Consent ---- */
.consent {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  cursor: pointer;
}
.consent input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--black);
  flex-shrink: 0;
}
.consent .req { margin-left: 6px; }

/* ---- Conditional blocks ---- */
.reg-conditional {
  margin-top: 4px;
  padding: 4px 0 0;
}

/* ---- Photo upload ---- */
.upload { position: relative; }
.upload input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}
.upload-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  padding: 30px 20px;
  border: 1px dashed var(--gray);
  background: #fbfaf9;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.upload:hover .upload-drop { border-color: var(--black); background: #fff; }
.upload-icon {
  font-family: var(--font-en);
  font-size: 22px;
  color: var(--gray);
  line-height: 1;
}
.upload-cta { font-size: 14px; letter-spacing: 0.03em; }
.upload-sub { font-size: 11.5px; color: var(--gray); line-height: 1.6; }

.upload-previews {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
}
.upload-previews:empty { display: none; }
.preview-thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--gray-light);
}
.preview-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.preview-thumb button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.7);
  color: #fff;
  font-size: 13px;
  line-height: 22px;
  text-align: center;
}
.preview-thumb .ptag {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: #fff;
  background: rgba(10,10,10,0.55);
  padding: 3px 5px;
  text-align: center;
}

/* ---- Review (STEP 6) ---- */
.review {
  border-top: 1px solid var(--gray-light);
  margin-bottom: 30px;
}
.review-group-title {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
  margin: 24px 0 6px;
}
.review-row {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 13.5px;
}
.review-row dt {
  color: var(--gray);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.review-row dd { color: var(--black); line-height: 1.6; word-break: break-word; }
.review-row dd.empty { color: #bdbbb7; }
.review-photos { display: flex; gap: 6px; flex-wrap: wrap; }
.review-photos img { width: 46px; height: 60px; object-fit: cover; }
.review-edit {
  float: right;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gray);
  border-bottom: 1px solid var(--gray-light);
}
.review-edit:hover { color: var(--black); border-color: var(--black); }

/* ---- Navigation ---- */
.reg-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 45;
  display: flex;
  gap: 12px;
  padding: 14px 20px calc(14px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--gray-light);
}
.reg-nav .btn {
  flex: 1;
  padding: 16px;
  text-align: center;
  width: auto;
}
.reg-nav #btnBack { flex: 0 0 34%; }

/* ---- Form error ---- */
.form-error {
  margin-top: 20px;
  padding: 14px 18px;
  border: 1px solid #c96b6b;
  color: #a11b1b;
  font-size: 13px;
  line-height: 1.7;
}

/* ---- Completion ---- */
.reg-complete {
  max-width: 560px;
  margin: 0 auto;
  padding: 90px 24px 120px;
  text-align: center;
  animation: regFade 0.6s var(--ease);
}
.rc-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gray);
  margin-bottom: 22px;
}
.rc-title {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: clamp(26px, 6vw, 40px);
  letter-spacing: 0.05em;
  line-height: 1.25;
  color: var(--black);
  margin-bottom: 24px;
}
.rc-text {
  font-size: 14px;
  line-height: 2;
  color: #4a4a4a;
  margin-bottom: 40px;
}
.rc-btn { min-width: 240px; }

/* ---- Footer ---- */
.reg-footer {
  padding: 30px 20px 40px;
  text-align: center;
}
.reg-footer p {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

/* ---- Loading state on submit ---- */
.reg-form.is-submitting { opacity: 0.6; pointer-events: none; }

/* =========================================================
   Wider screens — allow two columns, roomier spacing
   ========================================================= */
@media (min-width: 620px) {
  .reg-main { padding: 0 32px 160px; }
  .field-row { grid-template-columns: 1fr 1fr; gap: 22px 40px; }
  .upload-previews { grid-template-columns: repeat(6, 1fr); }
  .reg-nav {
    position: sticky;
    max-width: 680px;
    margin: 30px auto 0;
    border: none;
    background: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    padding: 0 0 40px;
  }
  .reg-nav .btn { flex: 0 0 auto; min-width: 160px; }
  .reg-nav #btnBack { flex: 0 0 auto; }
  .reg-nav #btnNext,
  .reg-nav #btnSubmit { margin-left: auto; }
}