/* ============================================================
   设计 Token 共享层 - customer 与 admin 都引用这个文件
   渐变 / 字号 / 阴影 / 动效 keyframes / utility class
   ============================================================ */

:root {
  /* ----- 主色板(浅色 Element Plus 风,但渐变化) ----- */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-soft: #f1f5f9;
  --color-border: rgba(15, 23, 42, 0.08);
  --color-border-strong: rgba(15, 23, 42, 0.14);
  --color-text: #0f172a;
  --color-text-soft: #475569;
  --color-text-muted: #94a3b8;

  --c-blue: #3b82f6;
  --c-indigo: #6366f1;
  --c-violet: #8b5cf6;
  --c-pink: #ec4899;
  --c-cyan: #06b6d4;
  --c-emerald: #10b981;
  --c-amber: #f59e0b;
  --c-rose: #f43f5e;

  /* ----- 主渐变 ----- */
  --g-primary: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
  --g-primary-hover: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
  --g-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --g-warn: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --g-accent: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  --g-bg:
    radial-gradient(at 12% 8%, rgba(99, 102, 241, 0.10), transparent 60%),
    radial-gradient(at 88% 92%, rgba(236, 72, 153, 0.07), transparent 55%),
    radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.04), transparent 70%);
  --g-title: linear-gradient(90deg, #0f172a 0%, #4338ca 60%, #7c3aed 100%);

  /* ----- 字号 ----- */
  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-base: 13px;
  --fs-md: 14px;
  --fs-lg: 16px;
  --fs-xl: 20px;
  --fs-2xl: 24px;
  --fs-3xl: 30px;

  /* ----- 圆角 ----- */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 999px;

  /* ----- 阴影三档 ----- */
  --shadow-1: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-2: 0 8px 24px rgba(99, 102, 241, 0.15), 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-3: 0 12px 32px rgba(99, 102, 241, 0.22), 0 0 0 1px rgba(99, 102, 241, 0.4);
  --shadow-card: 0 2px 12px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-glow-blue: 0 0 0 4px rgba(59, 130, 246, 0.18);

  /* ----- 间距 ----- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* ----- 动效 ----- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --d-fast: 150ms;
  --d-normal: 250ms;
  --d-slow: 400ms;

  /* ----- 字体 ----- */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
}

/* ============================================================
   全局重置
   ============================================================ */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--g-bg), var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--c-indigo); text-decoration: none; transition: color var(--d-fast); }
a:hover { color: var(--c-violet); }

button { font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* 隐藏 utility */
.hidden { display: none !important; }

/* ============================================================
   渐变文字
   ============================================================ */
.gradient-text {
  background: var(--g-title);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}
.gradient-text-primary {
  background: var(--g-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   卡片
   ============================================================ */
.card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--d-normal) var(--ease-out),
    transform var(--d-normal) var(--ease-out),
    border-color var(--d-normal) var(--ease-out);
}
.card-accent::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--g-accent);
  background-size: 200% 100%;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  animation: accent-flow 6s linear infinite;
}
.card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 20px;
  font-size: var(--fs-md);
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--d-fast) var(--ease-out),
    box-shadow var(--d-normal) var(--ease-out),
    opacity var(--d-fast),
    background-position var(--d-slow) var(--ease-out);
  white-space: nowrap;
  letter-spacing: 0.2px;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  color: #fff;
  background: var(--g-primary);
  background-size: 200% 100%;
  background-position: 0% 50%;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover:not(:disabled) {
  background-position: 100% 50%;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(139, 92, 246, 0.42);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }

.btn-success {
  color: #fff;
  background: var(--g-success);
  background-size: 200% 100%;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.32);
}
.btn-success:hover:not(:disabled) {
  background-position: 100% 50%;
  transform: translateY(-1px);
}

.btn-secondary {
  color: var(--color-text-soft);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-1);
}
.btn-secondary:hover:not(:disabled) {
  color: var(--c-indigo);
  border-color: var(--c-indigo);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.12);
}

.btn-ghost {
  color: var(--color-text-soft);
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 7px 14px;
  font-size: var(--fs-sm);
}
.btn-ghost:hover:not(:disabled) {
  color: var(--c-indigo);
  border-color: var(--c-indigo);
  background: rgba(99, 102, 241, 0.05);
}

.btn-arrow { font-size: 16px; line-height: 1; transition: transform var(--d-fast); }
.btn:hover:not(:disabled) .btn-arrow { transform: translateX(2px); }

/* loading shimmer */
.btn.is-loading {
  pointer-events: none;
  position: relative;
  overflow: hidden;
}
.btn.is-loading::after {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  animation: shimmer 1.2s infinite;
}

/* ============================================================
   输入控件
   ============================================================ */
.input, .textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  color: var(--color-text);
  font-size: var(--fs-md);
  transition: border-color var(--d-fast),
    box-shadow var(--d-normal) var(--ease-out);
}
.input.mono, .textarea.mono { font-family: var(--font-mono); letter-spacing: 0.4px; }
.textarea { font-size: var(--fs-base); line-height: 1.55; resize: vertical; min-height: 120px; }
.input:focus, .textarea:focus {
  outline: none;
  border-color: var(--c-blue);
  box-shadow: var(--shadow-glow-blue);
}
.input::placeholder, .textarea::placeholder { color: #cbd5e1; }

/* ============================================================
   标签 / pill
   ============================================================ */
.pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 600;
  border: 1px solid;
  white-space: nowrap;
}
.pill-blue { color: #1d4ed8; border-color: rgba(59, 130, 246, 0.4); background: rgba(59, 130, 246, 0.08); }
.pill-amber { color: #b45309; border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.08); }
.pill-emerald { color: #047857; border-color: rgba(16, 185, 129, 0.4); background: rgba(16, 185, 129, 0.08); }
.pill-rose { color: #be123c; border-color: rgba(244, 63, 94, 0.4); background: rgba(244, 63, 94, 0.08); }
.pill-violet { color: #6d28d9; border-color: rgba(139, 92, 246, 0.4); background: rgba(139, 92, 246, 0.08); }
.pill-gray { color: #475569; border-color: rgba(148, 163, 184, 0.4); background: rgba(148, 163, 184, 0.08); }

/* ============================================================
   错误提示
   ============================================================ */
.err-msg {
  color: var(--c-rose);
  font-size: var(--fs-base);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.err-msg::before {
  content: "!";
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px;
  background: var(--c-rose); color: #fff;
  border-radius: 50%; font-size: 11px; font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   toast
   ============================================================ */
.toast {
  position: fixed;
  top: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--c-indigo);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: var(--fs-base);
  box-shadow: 0 10px 32px rgba(15, 23, 42, 0.12);
  z-index: 1000;
  animation: toast-in var(--d-normal) var(--ease-out);
}
.toast.toast-success { border-left-color: var(--c-emerald); }
.toast.toast-error { border-left-color: var(--c-rose); }

/* ============================================================
   keyframes
   ============================================================ */
@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

@keyframes accent-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-down {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slide-out-left {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(-12px); }
}

@keyframes breathe {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.5); }
  50% { transform: scale(1.06); box-shadow: 0 0 0 8px rgba(99, 102, 241, 0); }
}

@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, -10px) scale(0.96); }
  to { opacity: 1; transform: translate(-50%, 0) scale(1); }
}

@keyframes draw-circle {
  to { stroke-dashoffset: 0; }
}

@keyframes draw-check {
  to { stroke-dashoffset: 0; }
}

@keyframes shake-x {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

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

/* ============================================================
   入场工具类
   ============================================================ */
.fx-fade-in { animation: fade-in var(--d-normal) var(--ease-out) both; }
.fx-fade-up { animation: fade-up var(--d-slow) var(--ease-out) both; }
.fx-fade-down { animation: fade-down var(--d-normal) var(--ease-out) both; }
.fx-slide-in { animation: slide-in-right var(--d-normal) var(--ease-out) both; }
.fx-delay-1 { animation-delay: 80ms; }
.fx-delay-2 { animation-delay: 160ms; }
.fx-delay-3 { animation-delay: 240ms; }