/* =============================================================
 * subscription-sheet.css  —  구독 유도 바텀 시트
 *
 * 의존: _tokens.css (색상/폰트/간격/반경/그림자/브레이크포인트 변수)
 * 규약: 브레이크포인트 표준 (≤ 480 / 768 / 1024 / 1280 / 1400 / 1920)
 *       색상/폰트값은 var(--*) 참조 사용
 * ============================================================= */

.intra-subscription-sheet {
  position: fixed;
  right: 16px;
  bottom: 16px;
  left: 16px;
  z-index: 99999;
  pointer-events: none;
}

.intra-subscription-sheet__panel {
  width: min(100%, 420px);
  margin-left: auto;
  padding: 18px;
  color: #161616;
  background: rgba(var(--rgb-white), 0.98);
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: 20px;
  box-shadow: 0 18px 48px rgba(var(--rgb-slate), 0.18);
  transform: translateY(calc(100% + 32px));
  opacity: 0;
  transition: transform 0.32s ease, opacity 0.32s ease;
  pointer-events: auto;
}

.intra-subscription-sheet[data-state="visible"] {
  pointer-events: auto;
}

.intra-subscription-sheet[data-state="visible"] .intra-subscription-sheet__panel {
  transform: translateY(0);
  opacity: 1;
}

.intra-subscription-sheet__header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-bottom: 4px;
}

.intra-subscription-sheet__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  color: #4b5563;
  background: #f4f4f5;
  border: 0;
  border-radius: 999px;
}

.intra-subscription-sheet__close:hover,
.intra-subscription-sheet__close:focus-visible {
  color: #111827;
  background: var(--color-gray-200);
}

.intra-subscription-sheet__content {
  position: relative;
}

.intra-subscription-sheet__view {
  margin: 0;
}

.intra-subscription-sheet__body {
  margin-bottom: 12px;
}

.intra-subscription-sheet__title {
  margin: 0 0 8px;
  /* font-size: 34px; */
  line-height: 1.3;
  font-weight: var(--fw-bold);
  word-break: keep-all;
}

.intra-subscription-sheet__description {
  margin: 0;
  font-size: var(--fs-lg);
  line-height: 1.6;
  color: #4b5563;
  word-break: keep-all;
}

.intra-subscription-sheet__guide-title {
  margin: 0 0 10px;
  font-size: var(--fs-2xl);
  line-height: 1.4;
  font-weight: var(--fw-bold);
  color: #111827;
}

.intra-subscription-sheet__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.intra-subscription-sheet__channel-block {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--color-gray-200);
}

.intra-subscription-sheet__channel-title {
  margin: 0 0 8px;
  font-size: var(--fs-sm);
  line-height: 1.4;
  font-weight: var(--fw-semibold);
  color: var(--color-gray-500);
}

.intra-subscription-sheet__channel-actions {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

.intra-subscription-sheet__email-form {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.intra-subscription-sheet__email-label {
  font-size: var(--fs-sm);
  line-height: 1.4;
  font-weight: var(--fw-semibold);
  color: var(--color-gray-500);
}

.intra-subscription-sheet__email-input {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  font-size: var(--fs-md);
  line-height: 1.2;
  color: #111827;
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: 10px;
}

.intra-subscription-sheet__email-input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
  outline: none;
}

.intra-subscription-sheet__email-form.is-email-complete .intra-subscription-sheet__email-label {
  color: #065f46;
  font-weight: var(--fw-bold);
}

.intra-subscription-sheet__email-input.is-email-complete {
  height: auto;
  min-height: 48px;
  padding: 12px;
  font-weight: var(--fw-bold);
  line-height: 1.45;
  color: #065f46;
  background: #ecfdf5;
  border: 2px solid #10b981;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.14);
}

.intra-subscription-sheet__email-input.is-email-complete:focus {
  border-color: #10b981;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.intra-subscription-sheet__email-actions {
  display: grid;
  gap: 8px;
}

.intra-subscription-sheet__step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.intra-subscription-sheet__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  background: #111827;
  border-radius: 999px;
}

.intra-subscription-sheet__step-text {
  padding-top: 2px;
  font-size: var(--fs-md);
  line-height: 1.5;
  color: var(--color-gray-600);
  word-break: keep-all;
}

.intra-subscription-sheet__actions {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.intra-subscription-sheet__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  text-align: center;
  border: 1px solid transparent;
  border-radius: 12px;
  transition: opacity 0.2s ease;
}

.intra-subscription-sheet__button--ghost {
  flex: 0 0 auto;
  min-height: 30px;
  padding: 0 8px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-gray-400);
  background: transparent;
  border-color: transparent;
  text-decoration: none;
  align-self: flex-end;
  opacity: 0.9;
}

.intra-subscription-sheet__button--primary {
  width: 100%;
  min-width: 0;
  color: var(--color-white);
  background: linear-gradient(135deg, #111827, var(--color-gray-600));
}

.intra-subscription-sheet__button--soft {
  flex: 0 0 auto;
  min-width: 112px;
  color: var(--color-gray-700);
  background: var(--color-white);
  border-color: var(--color-gray-300);
}

.intra-subscription-sheet__button:hover,
.intra-subscription-sheet__button:focus-visible {
  opacity: 0.92;
}

.intra-subscription-sheet__button--ghost:hover,
.intra-subscription-sheet__button--ghost:focus-visible {
  opacity: 1;
  color: var(--color-gray-600);
  background: transparent;
}

.intra-subscription-sheet[data-view="intro"] .intra-subscription-sheet__actions {
  flex-direction: column;
  align-items: stretch;
}

.intra-subscription-sheet[data-view="guide"] .intra-subscription-sheet__actions {
  flex-direction: row;
}

@media (max-width: 768px) {
  .intra-subscription-sheet {
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    left: 12px;
  }

  .intra-subscription-sheet__panel {
    width: 100%;
    max-width: none;
    padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
    border-radius: 18px;
  }

  .intra-subscription-sheet__title {
    font-size: 29px;
  }

  .intra-subscription-sheet__guide-title {
    font-size: 17px;
  }

  .intra-subscription-sheet__actions {
    gap: 6px;
  }

  .intra-subscription-sheet__button--primary,
  .intra-subscription-sheet__button--soft {
    width: 100%;
  }

  .intra-subscription-sheet__email-actions {
    gap: 6px;
  }
}

@media (min-width: 768px) {
  .intra-subscription-sheet[data-device="desktop"] {
    left: auto;
    width: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intra-subscription-sheet__panel {
    transition: none;
  }
}