/* ==========================================================================
   THAIE — Membership Application (digital form)
   Extends styles.css — uses the same tokens (colors, fonts, radii, shadows)
   ========================================================================== */

/* ---------- page header banner ---------- */
.app-hero{
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 70%, #050d1e 100%);
  color: var(--white);
  padding: 52px 0 44px;
  position: relative;
  overflow: hidden;
}
.app-hero__grid{ position: relative; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 24px; }
.app-hero__title{
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  font-weight: 700;
  color: var(--white);
  max-width: 620px;
}
.app-hero__lede{
  color: rgba(255,255,255,0.75);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 520px;
  margin-top: 12px;
}
.app-hero__meta{
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}
.app-hero__meta div{ font-size: 0.82rem; color: rgba(255,255,255,0.6); }
.app-hero__meta strong{ display: block; font-family: var(--font-display); font-size: 1.1rem; color: var(--white); font-weight: 600; }
.back-link{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--saffron);
  margin-bottom: 18px;
}
.back-link svg{ width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; }

/* ---------- layout ---------- */
.app-main{ background: var(--paper-dim); padding: 56px 0 90px; }
.app-shell{
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
  min-width: 0;
}
.app-toc{
  position: sticky;
  top: 24px;
  background: var(--white);
  border: 1px solid rgba(10,31,68,0.08);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
}
.app-toc h2{ font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); font-weight: 800; margin-bottom: 14px; }
.app-toc ol{ counter-reset: toc; display: flex; flex-direction: column; gap: 3px; }
.app-toc li{ counter-increment: toc; }
.app-toc a{
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 10px;
  font-size: 0.88rem; font-weight: 600; color: var(--ink-soft);
  transition: background .15s ease, color .15s ease;
}
.app-toc a::before{
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--saffron-deep);
  font-weight: 700;
}
.app-toc a:hover, .app-toc a.is-active{ background: rgba(255,153,51,0.12); color: var(--navy); }
.app-toc__note{ margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(10,31,68,0.08); font-size: 0.78rem; color: var(--ink-soft); line-height: 1.5; }

.app-form-wrap{ display: flex; flex-direction: column; gap: 22px; min-width: 0; }

/* ---------- sections ---------- */
.form-section{
  background: var(--white);
  border: 1px solid rgba(10,31,68,0.08);
  border-radius: var(--radius-lg);
  padding: 30px 32px 32px;
  box-shadow: var(--shadow-card);
  scroll-margin-top: 24px;
  min-width: 0;
}
.form-section__head{ display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; flex-wrap: wrap; }
.form-section__num{
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--saffron-deep);
  line-height: 1;
}
.form-section__title{ font-size: 1.2rem; font-weight: 600; color: var(--navy); }
.form-section__hint{ color: var(--ink-soft); font-size: 0.88rem; margin: 4px 0 20px; }

/* reuse .form-row / label / input / textarea from styles.css */
.field-grid{ display: grid; gap: 18px 20px; margin-bottom: 20px; min-width: 0; }
.field-grid--2{ grid-template-columns: 1fr 1fr; }
.field-grid--3{ grid-template-columns: 1fr 1fr 1fr; }
.field-grid > .form-row{ margin-bottom: 0; min-width: 0; }
.field-grid > div{ min-width: 0; }

.checkbox-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 16px; margin-bottom: 18px; }
.checkbox-item{
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border: 1.5px solid rgba(10,31,68,0.12);
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; color: var(--ink);
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.checkbox-item:has(input:checked){ border-color: var(--saffron); background: rgba(255,153,51,0.08); }
.checkbox-item input{ width: 17px; height: 17px; accent-color: var(--saffron-deep); flex-shrink: 0; }

.radio-row{ display: flex; gap: 18px; flex-wrap: wrap; }
.radio-item{ display: flex; align-items: center; gap: 8px; font-size: 0.92rem; font-weight: 600; color: var(--ink); cursor: pointer; }
.radio-item input{ width: 17px; height: 17px; accent-color: var(--saffron-deep); }

/* ---------- OTP / email verification ---------- */
.otp-box{ margin-top: 10px; }
.otp-box__row{ display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.otp-box__row input[type="text"]{ max-width: 160px; letter-spacing: 0.3em; font-weight: 700; text-align: center; }
.email-status{ display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem; font-weight: 700; margin-top: 8px; }
.email-status svg{ width: 15px; height: 15px; }
.email-status--verified{ color: var(--green-deep); }
.email-status--pending{ color: var(--ink-soft); }
.email-status--error{ color: #B3261E; }
.field-note{ font-size: 0.78rem; color: var(--ink-soft); margin-top: 6px; }

/* ---------- file uploads ---------- */
.doc-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.upload-field{
  border: 1.5px dashed rgba(10,31,68,0.22);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--paper);
  transition: border-color .15s ease, background .15s ease;
  min-width: 0;
}
.upload-field.is-filled{ border-style: solid; border-color: var(--green); background: rgba(15,123,61,0.05); }
.upload-field.is-error{ border-color: #B3261E; }
.upload-field__label{ display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.upload-field__label span:first-child{ font-size: 0.86rem; font-weight: 700; color: var(--navy); }
.upload-field__label .optional{ font-size: 0.74rem; }
.upload-field__body{ display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.upload-field__btn{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 999px;
  background: var(--white); border: 1.5px solid rgba(10,31,68,0.15);
  font-size: 0.82rem; font-weight: 700; color: var(--navy);
  cursor: pointer; flex-shrink: 0;
  transition: border-color .15s ease;
}
.upload-field__btn:hover{ border-color: var(--saffron); }
.upload-field__btn svg{ width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; }
.upload-field__meta{ font-size: 0.8rem; color: var(--ink-soft); flex: 1 1 140px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-field__meta strong{ color: var(--ink); font-weight: 700; }
.upload-field__remove{
  background: none; border: none; cursor: pointer;
  color: #B3261E; font-size: 0.78rem; font-weight: 700;
  flex-shrink: 0; display: none;
}
.upload-field.is-filled .upload-field__remove{ display: inline-block; }
.upload-field__err{ font-size: 0.76rem; color: #B3261E; margin-top: 8px; display: none; }
.upload-field.is-error .upload-field__err{ display: block; }
.upload-field input[type="file"]{ position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }

/* ---------- declaration ---------- */
.declaration-box{
  background: var(--paper);
  border: 1.5px solid rgba(10,31,68,0.12);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}
.declaration-box p{ font-size: 0.9rem; color: var(--ink-soft); line-height: 1.6; margin-bottom: 14px; }
.declaration-box .checkbox-item{ grid-column: 1 / -1; }
.declaration-box strong{ color: var(--navy); }

/* ---------- footer actions ---------- */
.form-actions{
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--white);
  border: 1px solid rgba(10,31,68,0.08);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  box-shadow: var(--shadow-card);
}
.form-actions__btns{ display: flex; gap: 12px; flex-wrap: wrap; }
.form-actions__note{ font-size: 0.8rem; color: var(--ink-soft); max-width: 360px; line-height: 1.5; }
.btn--pdf{ background: var(--white); color: var(--navy); border-color: rgba(10,31,68,0.18); }
.btn--pdf:hover{ border-color: var(--navy); background: rgba(10,31,68,0.05); }

.submit-banner{
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-weight: 700;
  font-size: 0.92rem;
  display: none;
  margin-top: 4px;
}
.submit-banner.is-success{ display: block; background: rgba(15,123,61,0.12); color: var(--green-deep); }
.submit-banner.is-error{ display: block; background: rgba(179,38,30,0.1); color: #B3261E; }

/* ---------- success overlay (after submit) ---------- */
.success-panel{
  display: none;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  text-align: center;
  box-shadow: var(--shadow-soft);
}
.success-panel.is-visible{ display: block; }
.success-panel__icon{ width: 56px; height: 56px; margin: 0 auto 16px; }
.success-panel h2{ font-size: 1.5rem; color: var(--white); margin-bottom: 10px; }
.success-panel p{ color: rgba(255,255,255,0.78); max-width: 460px; margin: 0 auto 22px; line-height: 1.6; }
.success-panel__btns{ display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ---------- responsive ---------- */

/* Large tablets / small laptops: sidebar TOC drops above the form,
   but keep 2–3 col grids where there's still room */
@media (max-width: 980px){
  .app-shell{ grid-template-columns: 1fr; }
  .app-toc{ position: static; }
  .app-toc ol{ flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .app-toc a{ padding: 7px 10px; }
}

/* Tablets: still 2 columns where sensible instead of jumping straight to 1 */
@media (max-width: 860px){
  .field-grid--3{ grid-template-columns: 1fr 1fr; }
  .checkbox-grid{ grid-template-columns: repeat(2, 1fr); }
}

/* Phones: everything single column, tighter padding */
@media (max-width: 620px){
  .app-hero{ padding: 40px 0 34px; }
  .app-hero__meta{ gap: 16px 22px; }
  .form-section{ padding: 22px 18px 24px; }
  .form-section__head{ gap: 10px; }
  .field-grid--2, .field-grid--3, .checkbox-grid, .doc-grid{ grid-template-columns: 1fr; }
  .app-toc ol{ flex-direction: column; }
  .otp-box__row{ align-items: stretch; }
  .otp-box__row input[type="text"]{ max-width: none; flex: 1 1 auto; }
  .otp-box__row .btn{ flex: 1 1 auto; }
  .upload-field__body{ gap: 10px; }
  .upload-field__meta{ flex-basis: 100%; white-space: normal; word-break: break-word; }
  .form-actions{ flex-direction: column; align-items: stretch; text-align: center; padding: 22px 20px; }
  .form-actions__btns{ flex-direction: column; }
  .form-actions__btns .btn{ width: 100%; }
  .form-actions__note{ max-width: none; }
  .success-panel{ padding: 30px 22px; }
  .success-panel__btns{ flex-direction: column; }
  .success-panel__btns .btn{ width: 100%; }
}

/* Very small phones */
@media (max-width: 400px){
  .app-hero__title{ font-size: clamp(1.5rem, 8vw, 1.9rem); }
  .app-hero__lede{ font-size: 0.92rem; }
  .form-section{ padding: 18px 14px 20px; }
  .form-section__num{ font-size: 1.3rem; }
  .form-section__title{ font-size: 1.05rem; }
  .checkbox-item{ font-size: 0.85rem; padding: 9px 10px; }
  .upload-field__btn{ padding: 8px 12px; font-size: 0.78rem; }
}