@import url('variables.css');

/* ============================================
   Reset & Base
   ============================================ */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-kr);
  background: var(--color-bg);
  color: var(--color-gray-800);
  font-size: var(--fs-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ============================================
   Layout shell (mobile)
   ============================================ */
.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--color-bg);
  position: relative;
  padding-bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom));
}

.top-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
}

.top-header .logo {
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

/* ============================================
   Bottom Tab Bar
   ============================================ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  height: calc(var(--bottom-nav-height) + var(--safe-area-bottom));
  padding-bottom: var(--safe-area-bottom);
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  z-index: 30;
}

.bottom-nav .nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--color-gray-400);
  font-size: 11px;
  font-weight: var(--fw-medium);
  background: none;
  border: none;
  cursor: pointer;
}

.bottom-nav .nav-item.active { color: var(--color-primary); }
.bottom-nav .nav-item svg { width: 22px; height: 22px; }

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-kr);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--color-primary); color: var(--color-white); padding: 11px 18px; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-teal { background: var(--color-teal); color: var(--color-white); padding: 11px 18px; }
.btn-teal:hover { background: var(--color-teal-dark); }

.btn-outline { background: var(--color-white); color: var(--color-gray-700); border: 1px solid var(--color-gray-300); padding: 10px 17px; }
.btn-outline:hover { background: var(--color-gray-50); }

.btn-ghost { background: transparent; color: var(--color-gray-500); padding: 8px 12px; }
.btn-ghost:hover { background: var(--color-gray-100); }

.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: var(--fs-sm); }

.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* Icon-only circular button (headers, toolbars) */
.icon-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: transparent;
  border: none;
  color: var(--color-gray-500);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.icon-btn:hover { background: var(--color-gray-100); color: var(--color-gray-700); }
.icon-btn:active { background: var(--color-primary-light); color: var(--color-primary); transform: scale(0.94); }

.header-actions { display: flex; align-items: center; gap: 2px; }

/* Collapsible search bar (toggled via icon-btn in header) */
.search-bar {
  display: none;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-3) var(--space-4);
  color: var(--color-gray-400);
}
.search-bar.open { display: flex; }
.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-kr);
  font-size: var(--fs-base);
  background: transparent;
  color: var(--color-gray-900);
}

/* Action tile (dashboard quick-action button) */
.action-tile {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--duration-fast), background var(--duration-fast);
}
.action-tile:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.action-tile:active { transform: scale(0.99); }

.action-tile .icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.action-tile .icon-wrap svg { width: 20px; height: 20px; }

.action-tile .text-wrap { flex: 1; min-width: 0; }
.action-tile .text-wrap .title { font-size: var(--fs-base); font-weight: var(--fw-semibold); color: var(--color-gray-900); }
.action-tile .text-wrap .desc { font-size: var(--fs-xs); color: var(--color-gray-500); margin-top: 1px; }

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
}
.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-info { background: var(--color-info-light); color: var(--color-info); }
.badge-gray { background: var(--color-gray-100); color: var(--color-gray-600); }

/* ============================================
   Form controls
   ============================================ */
.field { margin-bottom: var(--space-3); }
.field label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  padding: 12px 14px;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-gray-900);
  transition: border-color var(--duration-fast);
}
.input:focus { outline: none; border-color: var(--color-primary); }
.input::placeholder { color: var(--color-gray-400); font-family: var(--font-kr); }
.input.input-error { border-color: var(--color-danger); }

.textarea {
  font-family: var(--font-kr);
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}

.field-error {
  display: none;
  font-size: var(--fs-xs);
  color: var(--color-danger);
  margin-top: var(--space-2);
}
.field-error.show { display: block; }

.field-hint {
  font-size: var(--fs-xs);
  color: var(--color-gray-500);
  margin-top: var(--space-2);
}

/* ============================================
   Modal / Bottom Sheet
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.45);
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal-sheet {
  width: 100%;
  max-width: 480px;
  background: var(--color-white);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-4) var(--space-5) calc(var(--space-5) + var(--safe-area-bottom));
  transform: translateY(24px);
  transition: transform var(--duration-base) var(--ease-out);
  max-height: 88vh;
  overflow-y: auto;
}
.modal-overlay.open .modal-sheet { transform: translateY(0); }

.modal-sheet .sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-3);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}
.modal-header h3 { font-size: var(--fs-lg); font-weight: var(--fw-bold); color: var(--color-gray-900); }
.modal-close {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  border: none;
  cursor: pointer;
  color: var(--color-gray-500);
}

.modal-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.modal-actions .btn { flex: 1; }

.confirm-text { font-size: var(--fs-sm); color: var(--color-gray-600); line-height: 1.6; }

/* Message preview box */
.message-preview {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: var(--fs-sm);
  color: var(--color-gray-700);
  line-height: 1.55;
  white-space: normal;
}
.message-preview .preview-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-500);
  margin-bottom: 6px;
}

/* Fixed / custom content toggle (message-preview) */
.content-mode-toggle {
  display: flex;
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: 2px;
}
.mode-btn {
  padding: 4px 10px;
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  color: var(--color-gray-500);
  cursor: pointer;
}
.mode-btn.active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   Toast
   ============================================ */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom) + 16px);
  transform: translateX(-50%) translateY(12px);
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
  max-width: 90%;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.toast-success svg { color: var(--color-teal); flex-shrink: 0; }

/* ============================================
   Section headings
   ============================================ */
.section-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}
.section-title-row .section-title { margin-bottom: 0; }

.more-link {
  display: flex;
  align-items: center;
  gap: 2px;
  border: none;
  background: transparent;
  color: var(--color-gray-500);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  padding: 4px 2px;
}
.more-link:hover { color: var(--color-primary); }

/* Utility */
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mb-3 { margin-bottom: var(--space-3); }
.hidden { display: none !important; }