@import "tailwindcss";
@import "tw-animate-css";
@import "@xyflow/react/dist/style.css";

@custom-variant dark (&:is(.dark *));

/* ============================================================
   双主题 · 玻璃拟物（Rivet/Flowise 风）
   ============================================================ */

:root {
  color-scheme: light;
  /* ---- Light · 暖白底 ---- */
  --bg-canvas-1: #f6f4ed;
  --bg-canvas-2: #ece6d8;
  --bg-grid: rgba(0, 0, 0, 0.06);
  --bg-aurora-1: rgba(120, 100, 220, 0.15);
  --bg-aurora-2: rgba(220, 120, 180, 0.12);

  --node-bg: rgba(255, 255, 255, 0.7);
  --node-bg-hover: rgba(255, 255, 255, 0.82);
  --node-border: rgba(0, 0, 0, 0.08);
  --node-border-hover: rgba(0, 0, 0, 0.18);
  --node-ring: rgba(255, 255, 255, 0.9);
  --node-shadow:
    0 1px 1px rgba(0, 0, 0, 0.04),
    0 8px 24px -8px rgba(0, 0, 0, 0.12),
    0 30px 60px -30px rgba(40, 30, 80, 0.18);
  --node-shadow-hover:
    0 1px 1px rgba(0, 0, 0, 0.06),
    0 12px 32px -10px rgba(40, 30, 80, 0.22),
    0 40px 80px -30px rgba(40, 30, 80, 0.3);

  --text-strong: oklch(0.18 0.02 280);
  --text-soft: oklch(0.45 0.02 280);
  --text-faint: oklch(0.6 0.02 280);

  --edge-stroke: rgba(60, 50, 120, 0.35);
  --edge-glow: rgba(120, 100, 220, 0.4);

  --divider: rgba(0, 0, 0, 0.08);

  --background: oklch(0.97 0.005 80);
  --foreground: oklch(0.18 0.02 280);
  --border: var(--node-border);
  --ring: rgba(120, 100, 220, 0.5);
  --radius: 1rem;

  /* 节点头渐变（4 类型）*/
  --grad-input: linear-gradient(135deg, #6366f1, #a855f7);
  --grad-process: linear-gradient(135deg, #f59e0b, #ef4444);
  --grad-ai: linear-gradient(135deg, #d946ef, #ec4899);
  --grad-output: linear-gradient(135deg, #10b981, #06b6d4);

  /* 状态色 */
  --status-pending: oklch(0.7 0.02 280);
  --status-running: oklch(0.7 0.18 260);
  --status-done: oklch(0.7 0.18 160);
  --status-failed: oklch(0.65 0.22 25);
}

.dark {
  color-scheme: dark;
  /* ---- Dark · 深蓝紫 ---- */
  --bg-canvas-1: #0a0d1c;
  --bg-canvas-2: #14172e;
  --bg-grid: rgba(255, 255, 255, 0.04);
  --bg-aurora-1: rgba(120, 100, 220, 0.22);
  --bg-aurora-2: rgba(220, 80, 180, 0.16);

  --node-bg: rgba(22, 26, 48, 0.62);
  --node-bg-hover: rgba(30, 35, 60, 0.76);
  --node-border: rgba(255, 255, 255, 0.08);
  --node-border-hover: rgba(255, 255, 255, 0.18);
  --node-ring: rgba(255, 255, 255, 0.05);
  --node-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 1px 2px rgba(0, 0, 0, 0.4),
    0 16px 40px -12px rgba(0, 0, 0, 0.6),
    0 30px 80px -20px rgba(80, 50, 200, 0.3);
  --node-shadow-hover:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 1px 2px rgba(0, 0, 0, 0.5),
    0 20px 50px -10px rgba(0, 0, 0, 0.7),
    0 40px 100px -20px rgba(120, 80, 240, 0.4);

  --text-strong: oklch(0.96 0.005 280);
  --text-soft: oklch(0.7 0.015 280);
  --text-faint: oklch(0.5 0.015 280);

  --edge-stroke: rgba(180, 170, 240, 0.45);
  --edge-glow: rgba(120, 100, 220, 0.7);

  --divider: rgba(255, 255, 255, 0.08);

  --background: oklch(0.1 0.02 280);
  --foreground: oklch(0.96 0.005 280);
  --border: var(--node-border);
  --ring: rgba(180, 160, 255, 0.5);
}

@theme inline {
  --font-sans: "Geist", "Geist Fallback";
  --font-serif: "Playfair Display", Georgia, serif;
  --font-mono: "Geist Mono", "Geist Mono Fallback";
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-border: var(--border);
  --color-ring: var(--ring);
  --radius-lg: var(--radius);
  --radius-md: calc(var(--radius) - 0.25rem);
  --radius-sm: calc(var(--radius) - 0.5rem);
  --radius-xl: calc(var(--radius) + 0.25rem);
}

@layer base {
  * {
    border-color: var(--border);
  }
  html, body {
    background: var(--background);
    color: var(--foreground);
    min-height: 100vh;
  }
}

/* ============================================================
   画布背景：渐变 + 极光 + 颗粒
   ============================================================ */
.canvas-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, var(--bg-aurora-1), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 90%, var(--bg-aurora-2), transparent 60%),
    linear-gradient(180deg, var(--bg-canvas-1), var(--bg-canvas-2));
}

/* ============================================================
   节点：玻璃拟物 + 头部 4 色渐变
   ============================================================ */
.glass-node {
  position: relative;
  background: var(--node-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--node-border);
  border-radius: var(--radius);
  box-shadow: var(--node-shadow);
  transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1),
              box-shadow 0.25s cubic-bezier(0.32, 0.72, 0, 1),
              border-color 0.2s,
              background 0.2s;
  color: var(--text-strong);
  overflow: hidden;
}
.glass-node:hover {
  background: var(--node-bg-hover);
  border-color: var(--node-border-hover);
  box-shadow: var(--node-shadow-hover);
  transform: translateY(-1px);
}
.glass-node--selected {
  border-color: var(--ring);
  box-shadow: var(--node-shadow-hover), 0 0 0 3px var(--ring);
}
.glass-node--running::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: conic-gradient(from 0deg, transparent 70%, var(--edge-glow), transparent);
  animation: spin 3s linear infinite;
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  padding: 1.5px;
  opacity: 0.8;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.glass-node__header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--divider);
  color: white;
  font-weight: 600;
  letter-spacing: 0.01em;
  position: relative;
}
.glass-node__header::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.92;
}
.glass-node__header > * { position: relative; z-index: 1; }

.glass-node[data-type="input"]   .glass-node__header::before { background: var(--grad-input); }
.glass-node[data-type="process"] .glass-node__header::before { background: var(--grad-process); }
.glass-node[data-type="ai"]      .glass-node__header::before { background: var(--grad-ai); }
.glass-node[data-type="output"]  .glass-node__header::before { background: var(--grad-output); }

.glass-node__body { padding: 0.85rem 1rem 1rem; }

/* ============================================================
   Kanban 卡片（Storyflow/参考图风格）
   ============================================================ */
.kanban-card {
  position: relative;
  border-radius: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.kanban-card:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.16);
  box-shadow: 0 8px 24px -10px rgba(0, 0, 0, 0.5);
}
/* dark 模式下：低明度彩色 */
.dark .kanban-violet { background: linear-gradient(160deg, rgba(167, 139, 250, 0.18), rgba(139, 92, 246, 0.08)); }
.dark .kanban-pink   { background: linear-gradient(160deg, rgba(244, 114, 182, 0.18), rgba(236, 72, 153, 0.08)); }
.dark .kanban-orange { background: linear-gradient(160deg, rgba(251, 146, 60, 0.18), rgba(249, 115, 22, 0.08)); }
.dark .kanban-blue   { background: linear-gradient(160deg, rgba(96, 165, 250, 0.18), rgba(59, 130, 246, 0.08)); }
.dark .kanban-green  { background: linear-gradient(160deg, rgba(74, 222, 128, 0.18), rgba(34, 197, 94, 0.08)); }
.dark .kanban-cyan   { background: linear-gradient(160deg, rgba(34, 211, 238, 0.18), rgba(6, 182, 212, 0.08)); }
.dark .kanban-rose   { background: linear-gradient(160deg, rgba(251, 113, 133, 0.18), rgba(244, 63, 94, 0.08)); }
.dark .kanban-amber  { background: linear-gradient(160deg, rgba(252, 211, 77, 0.18), rgba(245, 158, 11, 0.08)); }

/* light 模式：pastel 暖底 */
:root:not(.dark) .kanban-violet { background: #ede9fe; border-color: rgba(139, 92, 246, 0.18); }
:root:not(.dark) .kanban-pink   { background: #fce7f3; border-color: rgba(236, 72, 153, 0.18); }
:root:not(.dark) .kanban-orange { background: #ffedd5; border-color: rgba(249, 115, 22, 0.18); }
:root:not(.dark) .kanban-blue   { background: #dbeafe; border-color: rgba(59, 130, 246, 0.18); }
:root:not(.dark) .kanban-green  { background: #dcfce7; border-color: rgba(34, 197, 94, 0.18); }
:root:not(.dark) .kanban-cyan   { background: #cffafe; border-color: rgba(6, 182, 212, 0.18); }
:root:not(.dark) .kanban-rose   { background: #ffe4e6; border-color: rgba(244, 63, 94, 0.18); }
:root:not(.dark) .kanban-amber  { background: #fef3c7; border-color: rgba(245, 158, 11, 0.18); }

.kanban-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-soft);
}
:root:not(.dark) .kanban-tag {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 0, 0, 0.06);
  color: var(--text-soft);
}

.kanban-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 10.5px;
  color: var(--text-faint);
}
:root:not(.dark) .kanban-meta {
  border-top-color: rgba(0, 0, 0, 0.06);
}

.glass-node__row {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 12px; color: var(--text-soft);
}
.glass-node__kbd {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-faint);
}

/* 状态点 */
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--status-pending);
  box-shadow: 0 0 0 0 currentColor;
}
.status-dot--running {
  background: var(--status-running);
  animation: pulse-dot 1.4s ease-in-out infinite;
}
.status-dot--done   { background: var(--status-done); }
.status-dot--failed { background: var(--status-failed); }
@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 var(--status-running); opacity: 1; }
  50%     { box-shadow: 0 0 0 6px transparent; opacity: 0.7; }
}

@keyframes drawer-in {
  from { transform: translateX(-24px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* 覆盖 ReactFlow 内置 reserved type（input/output/default/group）的默认白底
   提高 specificity：用 .react-flow 前缀确保盖过内置 CSS 变量 */
.react-flow .react-flow__node-input,
.react-flow .react-flow__node-output,
.react-flow .react-flow__node-default,
.react-flow .react-flow__node-group {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  width: auto !important;
  font-size: inherit !important;
  color: inherit !important;
  text-align: left !important;
  box-shadow: none !important;
}

/* 节点 handle（ReactFlow） */
.react-flow__handle {
  width: 12px !important;
  height: 12px !important;
  background: var(--node-bg) !important;
  border: 2px solid var(--edge-stroke) !important;
  box-shadow: 0 0 0 3px var(--node-ring) !important;
}
.react-flow__handle:hover {
  background: var(--edge-glow) !important;
  transform: scale(1.2);
}
.react-flow__edge .react-flow__edge-path {
  stroke: var(--edge-stroke);
  stroke-width: 1.6;
}
.react-flow__edge.animated .react-flow__edge-path {
  stroke: var(--edge-glow);
  stroke-width: 2;
  filter: drop-shadow(0 0 6px var(--edge-glow));
}
.react-flow__controls,
.react-flow__panel {
  background: var(--node-bg) !important;
  border: 1px solid var(--node-border) !important;
  border-radius: 12px !important;
  backdrop-filter: blur(16px);
  box-shadow: var(--node-shadow) !important;
}
.react-flow__controls button {
  background: transparent !important;
  border-bottom: 1px solid var(--divider) !important;
  color: var(--text-strong) !important;
}
.react-flow__controls button:hover {
  background: var(--node-bg-hover) !important;
}
.react-flow__minimap {
  background: var(--node-bg) !important;
  border-radius: 12px !important;
  border: 1px solid var(--node-border) !important;
  box-shadow: var(--node-shadow) !important;
}
.react-flow__background pattern circle {
  fill: var(--bg-grid) !important;
}
.react-flow__attribution { display: none !important; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--divider); border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }