/* =====================================================================
   共享基础组件样式 — 基于 design-system/tokens
   供所有页面复用：按钮、标签、输入框、卡片、弹窗、Logo、布局框架
   ===================================================================== */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  color: var(--color-text-primary);
  background: var(--color-bg-page);
  font: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

button { font-family: inherit; cursor: pointer; }

/* ---- Logo (AImCloud 文字标，SVG 内联，颜色继承 currentColor) ---- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font: 700 20px/1 var(--font-family-base);
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  font: 800 18px/1 var(--font-family-base);
  position: relative;
  flex-shrink: 0;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-primary);
  opacity: 0.25;
}
.logo-wordmark { white-space: nowrap; }
.logo--floating .logo-wordmark,
.logo--light .logo-wordmark { color: var(--color-text-primary); }
.logo--inverse .logo-wordmark { color: var(--color-text-inverse); }

/* =====================================================================
   按钮（base §12 按钮状态矩阵）
   ===================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  height: 40px;
  padding: 0 var(--space-20);
  border: 1px solid transparent;
  border-radius: var(--button-radius-marketing);
  font: var(--font-body-medium);
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease,
    box-shadow 0.15s ease, transform 0.05s ease;
  user-select: none;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: 0 2px 6px rgba(0, 133, 208, 0.25);
}
.btn--primary:hover { background: var(--color-primary-hover); }

.btn--secondary {
  background: var(--color-bg-container);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}
.btn--secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn--outline {
  background: var(--color-primary-outline-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary-hover); color: var(--color-text-inverse); }

.btn--danger {
  background: var(--color-error);
  color: var(--color-text-inverse);
}
.btn--danger:hover { background: #b92d63; }

.btn--text {
  background: transparent;
  color: var(--color-primary);
  height: auto;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
}
.btn--text:hover { background: var(--color-primary-outline-bg); }

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn--ghost:hover { color: var(--color-primary); background: var(--color-primary-outline-bg); }

.btn--lg { height: 48px; padding: 0 var(--space-24); font-size: 15px; }
.btn--sm { height: 32px; padding: 0 var(--space-12); font: var(--font-button-sm); }
.btn--block { width: 100%; }
.btn--disabled, .btn:disabled {
  background: var(--color-primary-disabled-bg) !important;
  color: var(--color-primary-disabled-text) !important;
  border-color: var(--color-primary-disabled-bg) !important;
  cursor: not-allowed;
  box-shadow: none !important;
}

/* =====================================================================
   标签 / Badge（component-specs §1.5）
   ===================================================================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  height: 24px;
  padding: 0 var(--space-8);
  border-radius: var(--radius-sm);
  font: var(--font-label);
  font-weight: 500;
  white-space: nowrap;
}
.tag--info { background: var(--color-info-container); color: var(--color-primary); }
.tag--success { background: var(--color-success-container); color: var(--color-success); }
.tag--warning { background: var(--color-warning-container); color: var(--color-warning); }
.tag--error { background: var(--color-error-container); color: var(--color-error); }
.tag--neutral { background: var(--color-fill-light); color: var(--color-text-tertiary); border: 1px solid var(--color-border); }
.tag--lg { height: 28px; font-size: 13px; }

.tag-dot { width: 6px; height: 6px; border-radius: var(--radius-circle); background: currentColor; }

/* =====================================================================
   输入框 / 表单（admin.md + modal-lead-form 规格）
   ===================================================================== */
.field { display: flex; flex-direction: column; gap: var(--space-8); }
.field-label {
  font: var(--font-body-medium);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.field-required { color: var(--color-error); }
.field-optional { color: var(--color-text-tertiary); font-weight: 400; font-size: 12px; }

.input, .select, .textarea {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-12);
  background: var(--color-bg-container);
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-md);
  font: var(--font-body);
  color: var(--color-text-primary);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}
.textarea { min-height: 80px; padding: var(--space-12); resize: vertical; line-height: 1.6; }
.input::placeholder, .textarea::placeholder { color: var(--color-text-placeholder); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-border-hover); }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(0, 133, 208, 0.12);
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%2386909C' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  padding-right: var(--space-32);
}
.select--sm { height: 32px; padding: 0 var(--space-8); padding-right: var(--space-28); font: var(--font-body-small); }
.input--sm { height: 32px; padding: 0 var(--space-8); font: var(--font-body-small); }
.input-group { display: flex; align-items: stretch; }
.input-group .input { border-radius: 0; }
.input-group .input:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.input-group .input:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.input-prefix {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-12);
  background: var(--color-fill-normal);
  border: 1px solid var(--color-border-input);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  color: var(--color-text-tertiary);
}
.input-suffix {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-12);
  background: var(--color-fill-normal);
  border: 1px solid var(--color-border-input);
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-tertiary);
}
.field-help { font: var(--font-label); color: var(--color-text-tertiary); }
.field-error { font: var(--font-label); color: var(--color-error); }

/* radio / checkbox */
.radio-row { display: flex; gap: var(--space-24); }
.radio, .checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  font: var(--font-body);
  color: var(--color-text-primary);
}
.radio input, .checkbox input { accent-color: var(--color-primary); width: 16px; height: 16px; }

/* =====================================================================
   卡片
   ===================================================================== */
.card {
  background: var(--color-bg-container);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card-marketing);
  padding: var(--space-24);
}
.card--panel {
  box-shadow: var(--shadow-page-panel);
  border-radius: var(--radius-lg);
}

/* =====================================================================
   弹窗（Modal）
   ===================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-dialog-mask);
  padding: var(--space-24);
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--color-bg-container);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  z-index: var(--z-dialog);
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  overflow: hidden;
  animation: modalIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal--sm { width: 480px; }
.modal--md { width: 600px; }
.modal--lg { width: 720px; }

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-16);
  padding: var(--space-24);
  border-bottom: 1px solid var(--color-border);
}
.modal-title { font: 700 var(--font-section-title); color: var(--color-text-primary); margin: 0; }
.modal-subtitle { font: var(--font-body); color: var(--color-text-secondary); margin-top: var(--space-4); }
.modal-body { padding: var(--space-24); overflow-y: auto; flex: 1; }
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-12);
  padding: var(--space-16) var(--space-24);
  border-top: 1px solid var(--color-border);
  background: var(--color-fill-light);
}
.modal-close {
  position: absolute;
  top: var(--space-16);
  right: var(--space-16);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-circle);
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.modal-close:hover { background: var(--color-fill-normal); color: var(--color-text-primary); }

/* =====================================================================
   步骤条 / 进度（TrialProgress component-specs §2.3）
   ===================================================================== */
.steps { display: flex; align-items: flex-start; width: 100%; }
.step { flex: 1; display: flex; flex-direction: column; align-items: center; position: relative; }
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 11px;
  left: 50%;
  right: -50%;
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}
.step--done:not(:last-child)::after { background: var(--color-primary); }
.step-dot {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-circle);
  background: var(--color-bg-container);
  border: 2px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  color: var(--color-text-tertiary);
  font-size: 11px;
  font-weight: 600;
}
.step--done .step-dot { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-text-inverse); }
.step--active .step-dot {
  background: var(--color-warning);
  border-color: var(--color-warning);
  color: var(--color-text-inverse);
  animation: pulse 1.8s ease-in-out infinite;
}
.step--success .step-dot { background: var(--color-success); border-color: var(--color-success); color: var(--color-text-inverse); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244, 152, 0, 0.5); }
  50% { box-shadow: 0 0 0 6px rgba(244, 152, 0, 0); }
}
.step-label { font: var(--font-label); color: var(--color-text-tertiary); margin-top: var(--space-8); text-align: center; white-space: nowrap; }
.step--done .step-label, .step--active .step-label { color: var(--color-text-secondary); }

/* 进度条（线性） */
.progress { height: 6px; background: var(--color-neutral-container); border-radius: var(--radius-pill); overflow: hidden; }
.progress-bar { height: 100%; background: var(--color-primary); border-radius: var(--radius-pill); transition: width 0.3s ease; }
.progress-bar--success { background: var(--color-success); }
.progress-bar--warning { background: var(--color-warning); }
.progress-bar--error { background: var(--color-error); }

/* =====================================================================
   折叠区（Accordion，留资弹窗 iBOSS 认证区）
   ===================================================================== */
.collapse { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; background: var(--color-bg-container); }
.collapse-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-16) var(--space-20);
  background: var(--color-fill-light);
  border: none;
  text-align: left;
  font: var(--font-body-medium);
  color: var(--color-text-primary);
}
.collapse-trigger:hover { background: var(--color-primary-outline-bg); }
.collapse-icon { transition: transform 0.2s ease; color: var(--color-text-tertiary); }
.collapse-trigger[aria-expanded="true"] .collapse-icon { transform: rotate(90deg); }
.collapse-body {
  padding: var(--space-24) var(--space-20);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

/* =====================================================================
   文件上传
   ===================================================================== */
.upload {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-fill-light);
  padding: var(--space-24);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.upload:hover { border-color: var(--color-primary); background: var(--color-primary-outline-bg); }
.upload-icon { width: 40px; height: 40px; color: var(--color-text-tertiary); }
.upload-text { font: var(--font-body-medium); color: var(--color-text-secondary); }
.upload-hint { font: var(--font-label); color: var(--color-text-tertiary); }
.upload-file {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-16);
  background: var(--color-bg-container);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.upload-file-icon { color: var(--color-primary); }
.upload-file-name { flex: 1; font: var(--font-body); color: var(--color-text-primary); }
.upload-file-size { font: var(--font-label); color: var(--color-text-tertiary); }

/* =====================================================================
   Toast 全局提示
   ===================================================================== */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2300;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}
.toast--warning { background: #FFF7E6; color: #D46B08; border: 1px solid #FFD591; }
.toast--success { background: #F6FFED; color: #389E0D; border: 1px solid #B7EB8F; }