/* ============================================================
   듀라플로어 견적 랜딩페이지 — style.css  (v3 · 폼 전용)
   ============================================================ */

/* ─── Variables ─────────────────────────────────────────── */
:root {
  --blue:       #1A56DB;
  --blue-dark:  #1341B0;
  --blue-light: #EBF1FF;
  --orange:     #F97316;
  --text-1:     #0F172A;
  --text-2:     #374151;
  --text-3:     #6B7280;
  --border:     #E5E7EB;
  --bg:         #F8F9FB;
  --white:      #FFFFFF;
  --green:      #10B981;
  --red:        #EF4444;
  --navy-1:     #0C1A36;
  --navy-2:     #152D5C;

  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  22px;
  --r-xl:  32px;

  --sh-sm: 0 2px 8px rgba(0,0,0,.07);
  --sh-md: 0 6px 24px rgba(0,0,0,.10);
  --sh-lg: 0 16px 48px rgba(0,0,0,.14);
  --sh-xl: 0 24px 64px rgba(0,0,0,.18);

  --ease: .22s ease;
}

/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans KR', sans-serif;
  color: var(--text-1);
  background: linear-gradient(160deg, var(--navy-1) 0%, var(--navy-2) 100%);
  min-height: 100vh;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a      { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   FORM SECTION  (전체 화면)
   ============================================================ */
.form-section {
  padding: 56px 0 72px;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.form-section .container {
  width: 100%;
}

/* 폼 카드 */
.form-card {
  background: var(--white);
  border-radius: var(--r-xl);
  box-shadow: var(--sh-xl);
  overflow: hidden;
}

/* 상단 배너 */
.form-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, var(--blue) 0%, #2563EB 100%);
  padding: 16px 24px;
}
.form-banner-item {
  display: flex; align-items: center; gap: 8px;
  color: var(--white); font-size: .88rem; font-weight: 600;
  padding: 0 28px;
}
.form-banner-item i { font-size: .95rem; opacity: .9; }
.form-banner-divider {
  width: 1px; height: 22px;
  background: rgba(255,255,255,.25);
}

/* 폼 헤더 타이틀 */
.form-header {
  padding: 36px 40px 0;
  text-align: center;
}
.form-header h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--text-1);
  line-height: 1.3;
  margin-bottom: 8px;
}
.form-header h1 span { color: var(--blue); }
.form-header p {
  font-size: .92rem;
  color: var(--text-3);
}

/* 폼 본체 */
#quoteForm { padding: 32px 40px 36px; }

/* 2열 Row */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Form Group */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: flex; align-items: center; gap: 7px;
  font-size: .88rem; font-weight: 600;
  color: var(--text-1); margin-bottom: 8px;
}
.form-group label i { color: var(--blue); font-size: .85rem; }

.req { color: var(--red); font-size: .82rem; }
.opt { color: var(--text-3); font-size: .78rem; font-weight: 400; }

/* Inputs */
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  font-family: inherit; font-size: .94rem;
  color: var(--text-1); background: var(--white);
  outline: none; appearance: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(26,86,219,.1);
}
.form-group input.is-error,
.form-group textarea.is-error,
.form-group select.is-error {
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(239,68,68,.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #B5BDC8; }
.form-group textarea { resize: vertical; min-height: 100px; }

/* Input with unit */
.input-unit { position: relative; display: flex; align-items: center; }
.input-unit input { padding-right: 52px !important; }
.unit-badge {
  position: absolute; right: 14px;
  font-size: .82rem; font-weight: 700;
  color: var(--text-3); pointer-events: none;
  background: var(--bg); padding: 2px 6px;
  border-radius: 4px; border: 1px solid var(--border);
}

/* Select */
.sel-wrap { position: relative; }
.sel-wrap::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free'; font-weight: 900;
  position: absolute; right: 16px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-3); pointer-events: none; font-size: .78rem;
}
.sel-wrap select {
  width: 100%;
  padding: 13px 42px 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  font-family: inherit; font-size: .94rem;
  color: var(--text-1); background: var(--white);
  appearance: none; -webkit-appearance: none;
  outline: none; cursor: pointer;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.sel-wrap select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(26,86,219,.1);
}

/* Field Errors */
.ferr {
  display: block; font-size: .78rem;
  color: var(--red); margin-top: 5px; min-height: 18px;
}

/* Privacy / Checkbox */
.privacy-group { margin-top: 4px; }
.chk-label {
  display: flex; align-items: flex-start; gap: 10px; cursor: pointer;
}
.chk-label input[type="checkbox"] { display: none; }
.chk-box {
  width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px;
  border: 2px solid var(--border); border-radius: 4px;
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--ease);
}
.chk-label input:checked ~ .chk-box {
  background: var(--blue); border-color: var(--blue);
}
.chk-label input:checked ~ .chk-box::after {
  content: '';
  width: 5px; height: 9px;
  border: 2px solid var(--white); border-top: none; border-left: none;
  transform: rotate(45deg) translateY(-1px);
}
.chk-text { font-size: .87rem; color: var(--text-2); line-height: 1.5; }
.prv-btn {
  color: var(--blue); font-size: .8rem; font-weight: 600;
  text-decoration: underline; margin-left: 6px; cursor: pointer;
}
.prv-box {
  margin-top: 10px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 14px 16px;
  font-size: .79rem; color: var(--text-3); line-height: 1.8;
}

/* Submit Button */
.btn-submit {
  width: 100%; min-height: 58px; margin-top: 8px;
  background: linear-gradient(135deg, var(--blue) 0%, #2563EB 100%);
  color: var(--white); font-size: 1.06rem; font-weight: 700;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center; gap: 9px;
  box-shadow: 0 6px 22px rgba(26,86,219,.42);
  transition: all var(--ease);
}
.btn-submit:hover {
  background: linear-gradient(135deg, var(--blue-dark) 0%, #1D4ED8 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(26,86,219,.52);
}
.btn-submit:active  { transform: translateY(0); }
.btn-submit:disabled { opacity: .65; cursor: not-allowed; transform: none; }

.form-notice {
  text-align: center; margin-top: 14px;
  font-size: .78rem; color: var(--text-3);
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.form-notice i { color: var(--blue); }

/* 빈도 선택용 설명 텍스트 */
.radio-desc {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.radio-desc-title {
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-1);
}
.radio-desc-sub {
  font-size: .8rem;
  color: var(--text-3);
  font-weight: 400;
  line-height: 1.5;
}
.radio-label:has(input:checked) .radio-desc-title { color: var(--blue); }
.radio-label:has(input:checked) .radio-desc-sub   { color: var(--text-2); }

/* 물 사용 빈도 그룹 전환 애니메이션 */
.water-freq-group {
  animation: slide-down .25s ease;
}
@keyframes slide-down {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   FORM DIVIDER
   ============================================================ */
.form-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 8px 0 24px;
}
.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.form-divider span {
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

/* ============================================================
   RADIO GROUP (3상 전기 / 색상)
   ============================================================ */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  transition: border-color var(--ease), background var(--ease);
  font-size: .92rem;
  color: var(--text-2);
  user-select: none;
}
.radio-label:hover {
  border-color: var(--blue);
  background: var(--blue-light);
}
.radio-label input[type="radio"] { display: none; }

.radio-box {
  width: 18px; height: 18px; flex-shrink: 0;
  border: 2px solid var(--border);
  border-radius: 50%;
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--ease);
}
.radio-label input:checked ~ .radio-box {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: inset 0 0 0 3px var(--white);
}
.radio-label:has(input:checked) {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--text-1);
  font-weight: 600;
}

/* 태그 */
.tag-free {
  display: inline-block;
  font-size: .72rem; font-weight: 700; font-style: normal;
  background: #ECFDF5; color: #059669;
  border: 1px solid #6EE7B7;
  padding: 2px 8px; border-radius: 100px;
  margin-left: 6px;
}
.tag-cost {
  display: inline-block;
  font-size: .72rem; font-weight: 700; font-style: normal;
  background: #FFF7ED; color: #EA580C;
  border: 1px solid #FED7AA;
  padding: 2px 8px; border-radius: 100px;
  margin-left: 6px;
}

/* 안내 박스 */
.info-box {
  display: flex; align-items: flex-start; gap: 8px;
  margin-top: 10px;
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  border-radius: var(--r-sm);
  padding: 12px 14px;
  font-size: .82rem;
  color: #92400E;
  line-height: 1.65;
}
.info-box i { color: #F97316; flex-shrink: 0; margin-top: 2px; }

/* 힌트 텍스트 */
.field-hint {
  display: flex; align-items: center; gap: 6px;
  margin-top: 8px;
  font-size: .78rem;
  color: var(--text-3);
}
.field-hint i { color: var(--blue); font-size: .75rem; }

/* ============================================================
   INFRA CHECK CARDS (3상 전기 / 용수)
   ============================================================ */
.infra-check-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.infra-check-card {
  cursor: pointer;
  display: block;
  position: relative;
}
.infra-check-card input[type="checkbox"] { display: none; }
.infra-check-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg);
  transition: all var(--ease);
  text-align: center;
  position: relative;
}
.infra-check-card:hover .infra-check-inner {
  border-color: var(--blue);
  background: var(--blue-light);
}
.infra-check-card:has(input:checked) .infra-check-inner {
  border-color: var(--blue);
  background: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(26,86,219,.15);
}
.infra-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--text-3);
  border: 1.5px solid var(--border);
  transition: all var(--ease);
}
.infra-check-card:has(input:checked) .infra-icon {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.infra-title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--text-1);
}
.infra-sub {
  font-size: .75rem;
  color: var(--text-3);
}
.infra-check-mark {
  position: absolute;
  top: 8px; right: 8px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  font-size: .65rem;
  display: none;
  align-items: center; justify-content: center;
}
.infra-check-card:has(input:checked) .infra-check-mark { display: flex; }

.infra-unknown-wrap {
  margin-top: 4px;
}
.infra-unknown-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: .88rem;
  color: var(--text-2);
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg);
  transition: all var(--ease);
}
.infra-unknown-label:hover {
  border-color: var(--blue);
  background: var(--blue-light);
}
.infra-unknown-label input[type="checkbox"] { display: none; }
.infra-unknown-box {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-radius: 4px;
  flex-shrink: 0;
  background: var(--white);
  transition: all var(--ease);
  position: relative;
}
.infra-unknown-label:has(input:checked) .infra-unknown-box {
  background: var(--blue);
  border-color: var(--blue);
}
.infra-unknown-label:has(input:checked) .infra-unknown-box::after {
  content: '';
  position: absolute;
  left: 3px; top: 0px;
  width: 6px; height: 10px;
  border: 2px solid white;
  border-top: none; border-left: none;
  transform: rotate(45deg);
}
.infra-unknown-label:has(input:checked) {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
}

/* ============================================================
   ENGRAVE GRID (글·그림 새기기)
   ============================================================ */
.engrave-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.engrave-card {
  cursor: pointer;
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
  display: block;
}
.engrave-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--sh-sm);
}
.engrave-card input[type="radio"] { display: none; }
.engrave-card:has(input:checked) {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,86,219,.18);
}

.engrave-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 10px 14px;
  gap: 6px;
  background: var(--bg);
  transition: background var(--ease);
}
.engrave-card:has(input:checked) .engrave-inner {
  background: var(--blue-light);
}

.engrave-colors {
  display: flex; gap: 4px; min-height: 20px;
  align-items: center; justify-content: center;
}
.dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.8);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}

.engrave-title {
  font-size: .82rem; font-weight: 700;
  color: var(--text-1); text-align: center;
}
.engrave-price {
  font-size: .72rem; font-weight: 500;
  color: var(--blue); text-align: center;
  line-height: 1.4;
}
/* ==============================================================
   TOGGLE BUTTON GROUP (글·그림 필요여부)
   ============================================================== */
.toggle-btn-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.toggle-btn {
  flex: 1;
  min-width: 140px;
  cursor: pointer;
  display: block;
}
.toggle-btn input[type="radio"] { display: none; }
.toggle-btn span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-2);
  background: var(--bg);
  transition: all var(--ease);
  text-align: center;
}
.toggle-btn:hover span {
  border-color: var(--blue);
  background: var(--blue-light);
}
.toggle-btn input:checked + span {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,86,219,.15);
}
.toggle-btn--accent input:checked + span {
  border-color: var(--orange);
  background: #FFF3E0;
  color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,.15);
}
.toggle-btn--accent:hover span {
  border-color: var(--orange);
  background: #FFF3E0;
}

/* ==============================================================
   ENGRAVE DETAIL GROUP (슬라이드 펼침)
   ============================================================== */
.engrave-detail-group {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height .45s cubic-bezier(.4,0,.2,1),
              opacity    .35s ease,
              margin     .35s ease;
  margin-top: 0;
}
.engrave-detail-group.open {
  max-height: 600px;
  opacity: 1;
  margin-top: -8px;
}
.engrave-detail-group .form-group:first-child {
  border-top: 2px dashed rgba(249,115,22,.35);
  padding-top: 18px;
  margin-top: 4px;
}

/* ============================================================
   SUCCESS MODAL
   ============================================================ */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(12,26,54,.7);
  backdrop-filter: blur(5px);
  z-index: 999; align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: var(--white); border-radius: var(--r-xl);
  padding: 56px 48px; max-width: 440px; width: 90%;
  text-align: center; box-shadow: var(--sh-xl);
  animation: pop-in .32s cubic-bezier(.34,1.56,.64,1);
}
@keyframes pop-in {
  from { opacity: 0; transform: scale(.82); }
  to   { opacity: 1; transform: scale(1); }
}
.modal-check { font-size: 4.2rem; color: var(--green); margin-bottom: 20px; }
.modal-box h3 { font-size: 1.45rem; font-weight: 800; margin-bottom: 14px; }
.modal-box p  { font-size: .94rem; color: var(--text-3); line-height: 1.8; margin-bottom: 28px; }
.btn-modal-close {
  background: var(--blue); color: var(--white);
  font-size: .95rem; font-weight: 700;
  padding: 13px 44px; border-radius: 100px;
  transition: background var(--ease);
}
.btn-modal-close:hover { background: var(--blue-dark); }

.modal-photo-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #F0F9FF;
  border: 1px solid #BAE6FD;
  border-radius: var(--r-md);
  padding: 14px 18px;
  margin-bottom: 24px;
  text-align: left;
  font-size: .88rem;
  color: var(--text-2);
  line-height: 1.7;
}
.modal-photo-notice i {
  color: #0EA5E9;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.modal-photo-notice strong:first-child {
  color: var(--text-1);
  font-size: .95rem;
}
.modal-phone {
  display: block;
  font-size: 1.25rem;
  color: var(--blue);
  letter-spacing: .04em;
  margin-top: 6px;
}
.modal-phone-name {
  display: inline-block;
  margin-left: 8px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1px 10px;
  vertical-align: middle;
}

/* ── 폼 내 현장 사진 안내 배너 ── */
.photo-notice-bar {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: linear-gradient(135deg, #FFF7ED 0%, #FEF3C7 100%);
  border: 1.5px solid #FCD34D;
  border-radius: var(--r-md);
  padding: 16px 20px;
  margin-bottom: 20px;
  text-align: left;
  font-size: .9rem;
  color: var(--text-1);
  line-height: 1.75;
  box-shadow: 0 2px 8px rgba(251,191,36,.18);
}
.photo-notice-bar i {
  color: #F59E0B;
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 3px;
}
.photo-notice-bar strong {
  font-size: 1rem;
  color: #92400E;
}
.photo-phone {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .04em;
  margin-top: 5px;
}
.photo-phone-name {
  display: inline-block;
  margin-left: 8px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-3);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1px 10px;
  vertical-align: middle;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: transparent;
  padding: 20px 0 32px;
  text-align: center;
}
.footer-inner {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
}
.footer-logo .logo-dura  { font-size: 1.1rem; font-weight: 900; color: #93C5FD; }
.footer-logo .logo-floor { font-size: 1.1rem; font-weight: 900; color: var(--white); }
.site-footer p { font-size: .76rem; color: rgba(255,255,255,.3); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 680px) {
  .form-section { padding: 32px 0 48px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  #quoteForm { padding: 24px 20px 28px; }
  .form-header { padding: 28px 20px 0; }
  .form-header h1 { font-size: 1.4rem; }
  .form-banner { flex-direction: column; gap: 10px; padding: 16px 20px; }
  .form-banner-divider { display: none; }
  .form-banner-item { padding: 0; }
  .engrave-grid { grid-template-columns: repeat(3, 1fr); }
  .toggle-btn-group { flex-direction: column; }
  .toggle-btn { min-width: unset; }
}