/* ==========================================================================
   MIRA Components — Buttons, Forms, Cards, Tabs/Chips/Badges
   tokens.css 를 먼저 로드하세요.
   ========================================================================== */

/* ============================================================================
   BUTTONS
   ============================================================================ */
.mira-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.0145em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, transform .05s ease;
  user-select: none;
  white-space: nowrap;
  text-decoration: none;
}
.mira-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.mira-btn:active { transform: translateY(1px); }
.mira-btn:disabled,
.mira-btn[aria-disabled="true"] {
  background: var(--action-disabled-bg);
  color: var(--action-disabled-text);
  border-color: transparent;
  cursor: not-allowed;
  pointer-events: none;
}

/* sizes */
.mira-btn--sm { height: 32px; padding: 0 12px; font-size: 13px; line-height: 1; border-radius: var(--radius-sm); }
.mira-btn--md { height: 40px; padding: 0 16px; font-size: 14px; line-height: 1; }
.mira-btn--lg { height: 48px; padding: 0 20px; font-size: 16px; line-height: 1; border-radius: var(--radius-md); }

/* variants */
.mira-btn--primary {
  background: var(--action-primary-bg);
  color: var(--action-primary-text);
}
.mira-btn--primary:hover { background: var(--action-primary-bg-hover); }

.mira-btn--secondary {
  background: var(--action-secondary-bg);
  color: var(--action-secondary-text);
  border-color: var(--action-secondary-border);
}
.mira-btn--secondary:hover { background: var(--mira-brand-accent-soft); }

.mira-btn--ghost {
  background: var(--action-ghost-bg);
  color: var(--action-ghost-text);
}
.mira-btn--ghost:hover { background: var(--action-ghost-bg-hover); }

/* ============================================================================
   FORM
   ============================================================================ */
.mira-field { display: flex; flex-direction: column; gap: var(--space-2); }
.mira-field__label {
  font-size: var(--type-label-1-size);
  line-height: var(--type-label-1-line);
  letter-spacing: var(--type-label-1-tracking);
  font-weight: 600;
  color: var(--text-primary);
}
.mira-field__hint {
  font-size: var(--type-caption-1-size);
  line-height: var(--type-caption-1-line);
  letter-spacing: var(--type-caption-1-tracking);
  color: var(--text-tertiary);
}
.mira-field__hint--error { color: var(--text-danger); }

.mira-input,
.mira-select,
.mira-textarea {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: 0.0096em;
  color: var(--text-primary);
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.mira-textarea { height: auto; min-height: 96px; padding: 12px 14px; resize: vertical; }
.mira-input::placeholder,
.mira-textarea::placeholder { color: var(--text-tertiary); }
.mira-input:hover,
.mira-select:hover,
.mira-textarea:hover { border-color: var(--color-coolneutral-39); }
.mira-input:focus,
.mira-select:focus,
.mira-textarea:focus {
  outline: none;
  border-color: var(--mira-brand-primary);
  box-shadow: var(--focus-ring);
}
.mira-input[aria-invalid="true"] { border-color: var(--color-red-50); }
.mira-input:disabled { background: var(--color-coolneutral-99); color: var(--text-disabled); cursor: not-allowed; }

.mira-select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'><path d='M4 6l4 4 4-4' stroke='%2370737C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.mira-checkbox,
.mira-radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: 14px;
  color: var(--text-primary);
}
.mira-checkbox input,
.mira-radio input { position: absolute; opacity: 0; pointer-events: none; }
.mira-checkbox__box,
.mira-radio__box {
  flex: none;
  width: 18px; height: 18px;
  border: 1.5px solid var(--border-strong);
  background: var(--surface-default);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color .15s, background .15s;
}
.mira-checkbox__box { border-radius: 4px; }
.mira-radio__box { border-radius: 50%; }
.mira-checkbox input:checked + .mira-checkbox__box,
.mira-radio input:checked + .mira-radio__box {
  background: var(--mira-brand-primary);
  border-color: var(--mira-brand-primary);
}
.mira-checkbox input:checked + .mira-checkbox__box::after {
  content: ""; width: 10px; height: 10px;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10' fill='none'><path d='M2 5l2 2 4-4' stroke='white' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>") center / contain no-repeat;
}
.mira-radio input:checked + .mira-radio__box::after {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: #fff;
}

/* ============================================================================
   CARD / LIST CELL
   ============================================================================ */
.mira-card {
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.mira-card--accent {
  border-color: var(--border-accent);
  background: var(--bg-brand-soft);
}
.mira-card--raised { box-shadow: var(--shadow-md); border-color: transparent; }
.mira-card__title { font-size: var(--type-title-3-size); line-height: var(--type-title-3-line); letter-spacing: var(--type-title-3-tracking); font-weight: 700; color: var(--text-primary); margin: 0; }
.mira-card__body  { font-size: var(--type-body-1-size); line-height: var(--type-body-1-reading-line); color: var(--text-secondary); margin: 0; }

.mira-list-cell {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  transition: background .15s;
}
.mira-list-cell:hover { background: var(--bg-secondary); }
.mira-list-cell__leading { flex: none; width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--bg-secondary); border: 1px solid var(--border-subtle); display:flex; align-items:center; justify-content:center; color: var(--mira-brand-primary); }
.mira-list-cell__content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.mira-list-cell__title { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.mira-list-cell__subtitle { font-size: 13px; color: var(--text-tertiary); }
.mira-list-cell__trailing { flex: none; color: var(--text-tertiary); }

/* ============================================================================
   TABS
   ============================================================================ */
.mira-tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}
.mira-tab {
  appearance: none;
  background: transparent;
  border: none;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-tertiary);
  cursor: pointer;
  position: relative;
  transition: color .15s;
}
.mira-tab:hover { color: var(--text-secondary); }
.mira-tab[aria-selected="true"] { color: var(--mira-brand-primary); }
.mira-tab[aria-selected="true"]::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 2px;
  background: var(--mira-brand-primary); border-radius: 2px 2px 0 0;
}

/* ============================================================================
   CHIPS
   ============================================================================ */
.mira-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.0145em;
  border-radius: var(--radius-pill);
  background: var(--color-coolneutral-99);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: all .15s;
}
.mira-chip:hover { background: var(--color-coolneutral-95); }
.mira-chip[aria-pressed="true"],
.mira-chip--active {
  background: var(--mira-brand-primary);
  color: #fff;
  border-color: transparent;
}

/* ============================================================================
   BADGES
   ============================================================================ */
.mira-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 22px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: var(--radius-xs);
  text-transform: uppercase;
}
.mira-badge--brand   { background: var(--bg-brand-soft); color: var(--mira-brand-primary); }
.mira-badge--info    { background: var(--color-blue-95); color: var(--color-blue-30); }
.mira-badge--success { background: var(--color-green-95); color: var(--color-green-30); }
.mira-badge--warning { background: var(--color-orange-95); color: var(--color-orange-30); }
.mira-badge--danger  { background: var(--color-red-95); color: var(--color-red-30); }
.mira-badge--outline {
  background: transparent;
  border: 1px solid currentColor;
  color: var(--mira-brand-primary);
}

/* ============================================================================
   DIVIDER
   ============================================================================ */
.mira-divider { border: none; border-top: 1px solid var(--border-subtle); margin: 0; }
.mira-divider--strong { border-top-color: var(--text-primary); border-top-width: 2px; }

/* ============================================================================
   STEPS — 절차/단계 안내 (발급 절차, 신청 방법, 이용 순서 등)
   번호 원형 마커 + 연결 라인 + 제목/설명/선택 CTA.
   번호는 CSS counter로 자동 부여 — 마크업에 숫자를 쓰지 않는다.
   data-brand="startup" 시 네이비로 자동 전환.

   사용 예:
   <div class="mira-steps">
     <div class="mira-steps__label">발급 절차</div>
     <div class="mira-step">
       <span class="mira-step__num" aria-hidden="true"></span>
       <div class="mira-step__content">
         <h3 class="mira-step__title">LP FAAN 접속</h3>
         <p class="mira-step__desc">아래 링크를 통해 <strong>LP FAAN</strong>에 접속합니다.</p>
         <a class="mira-step__cta" href="#">LP FAAN 바로가기 <span aria-hidden="true">→</span></a>
       </div>
     </div>
     <div class="mira-step"> … </div>
   </div>
   ============================================================================ */
.mira-steps { counter-reset: mira-step; }

/* 섹션 라벨 — 보라 대시 + 자간 넓은 소제목 */
.mira-steps__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-8);
}
.mira-steps__label::before {
  content: "";
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: var(--mira-brand-primary);
}

/* 단계 한 줄 — [마커 40px | 24px gap | 내용] */
.mira-step {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  column-gap: var(--space-6);
  padding-bottom: var(--space-12);
}
.mira-step:last-child { padding-bottom: 0; }

/* 연결 라인 — 마커 아래에서 다음 마커까지, 연한 키컬러 */
.mira-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 4px;
  width: 2px;
  background: var(--mira-brand-accent);
}
.mira-step:last-child::before { display: none; }

/* 번호 원형 마커 — 딥 키컬러 배경 + 흰 숫자(자동 카운터) */
.mira-step__num {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--mira-brand-primary-deep);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.mira-step__num::before {
  counter-increment: mira-step;
  content: counter(mira-step);
}

.mira-step__content { padding-top: 6px; min-width: 0; }

.mira-step__title {
  margin: 0 0 var(--space-3);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.012em;
  color: var(--text-primary);
}
.mira-step__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-tertiary);
  letter-spacing: 0.0057em;
}
.mira-step__desc strong { font-weight: 700; color: var(--text-primary); }

/* 선택 CTA — 연 키컬러 칩 + 키컬러 볼드 텍스트 (작은 면적이므로 soft 허용) */
.mira-step__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-4);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--mira-brand-accent-soft);
  color: var(--mira-brand-primary);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s;
}
.mira-step__cta:hover { background: var(--mira-brand-accent); }

@media (max-width: 640px) {
  .mira-step { grid-template-columns: 32px 1fr; column-gap: var(--space-4); padding-bottom: var(--space-10); }
  .mira-step__num { width: 32px; height: 32px; font-size: 14px; }
  .mira-step::before { left: 15px; top: 36px; }
  .mira-step__title { font-size: 17px; }
  .mira-step__desc { font-size: 15px; }
}