/* ============================================================
   PULSE 组件库
   ============================================================ */

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--text);
}

.nav-brand img {
  height: 38px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.nav-link i {
  font-size: 13px;
}

.nav-link:hover {
  color: var(--text);
  background: var(--surface);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-soft);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn-icon {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.nav-btn-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border-radius: var(--radius-sm);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
  border: 1px solid transparent;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--grad-energy);
  color: #0a0a0a;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(255, 107, 53, 0.5);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--border-strong);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(239, 35, 60, 0.4);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 35, 60, 0.12);
  border-color: var(--danger);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 15px;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.25s ease;
}

.card-hover:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ---------- 表单 ---------- */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.form-label .req {
  color: var(--primary);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  transition: all 0.2s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-dim);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
  font-family: inherit;
}

.form-hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

.form-error {
  margin-top: 6px;
  font-size: 12px;
  color: var(--danger);
}

/* ---------- 模态框 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 1px;
}

.modal-close {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.modal-close:hover {
  color: var(--text);
  background: var(--surface-2);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ---------- 通知 ---------- */
.toast-wrap {
  position: fixed;
  top: calc(var(--nav-h) + 16px);
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  min-width: 260px;
  max-width: 380px;
  padding: 13px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--text-muted);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  pointer-events: auto;
  animation: fadeUp 0.25s ease;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--accent); }
.toast.info { border-left-color: var(--primary); }

.toast i {
  font-size: 16px;
}
.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }
.toast.warning i { color: var(--accent); }
.toast.info i { color: var(--primary); }

.toast.leaving {
  animation: fadeOut 0.25s ease forwards;
}

@keyframes fadeOut {
  to { opacity: 0; transform: translateX(20px); }
}

/* ---------- 徽章 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: 4px;
  background: var(--surface-3);
  color: var(--text-muted);
}

.badge-primary {
  background: var(--primary-soft);
  color: var(--primary);
}

.badge-success {
  background: rgba(6, 214, 160, 0.15);
  color: var(--success);
}

.badge-accent {
  background: rgba(247, 197, 72, 0.15);
  color: var(--accent);
}

/* ---------- 空状态 ---------- */
.empty-state {
  text-align: center;
  padding: 72px 24px;
}

.empty-state-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--surface);
  border: 2px dashed var(--border-strong);
  color: var(--text-dim);
  font-size: 36px;
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 24px;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- 加载态 ---------- */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .nav-links {
    gap: 0;
  }
  .nav-link span {
    display: none;
  }
  .nav-link {
    padding: 9px 12px;
  }
  .toast-wrap {
    right: 12px;
    left: 12px;
    top: calc(var(--nav-h) + 8px);
  }
  .toast {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .btn {
    padding: 11px 18px;
  }
}