/* FAST 易支付 - PHP Demo 共享样式
 * 支持深色模式（html[data-theme=dark]）+ 移动端适配
 */
:root {
  --bg-1: #f5f7fa;
  --bg-2: #e9eef5;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(255, 255, 255, 0.6);
  --shadow: 0 8px 30px rgba(31, 45, 61, 0.08);
  --text: #1d2129;
  --text-2: #4e5969;
  --text-3: #86909c;
  --border: #dcdfe6;
  --primary: #1677ff;
  --primary-hover: #3c8fff;
  --primary-bg: #e8f3ff;
  --ok-bg: #e8ffea;
  --ok-text: #00b42a;
  --ok-border: #b7eb8f;
  --fail-bg: #fff1f0;
  --fail-text: #cf1322;
  --fail-border: #ffa39e;
  --debug-bg: #1e1e1e;
  --debug-text: #d4d4d4;
  --row-border: #f0f1f3;
}

html[data-theme='dark'] {
  --bg-1: #0f1115;
  --bg-2: #1a1d24;
  --card-bg: rgba(24, 27, 34, 0.9);
  --card-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --text: #e5e7eb;
  --text-2: #b6bcc6;
  --text-3: #8a919c;
  --border: #333a45;
  --primary: #3c8fff;
  --primary-hover: #66a8ff;
  --primary-bg: rgba(60, 143, 255, 0.18);
  --ok-bg: rgba(0, 180, 42, 0.15);
  --ok-text: #34d158;
  --ok-border: rgba(0, 180, 42, 0.35);
  --fail-bg: rgba(207, 19, 34, 0.15);
  --fail-text: #ff6b74;
  --fail-border: rgba(207, 19, 34, 0.35);
  --row-border: #2a2e37;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 100%);
  min-height: 100vh;
  color: var(--text);
  padding: 32px 16px;
  transition: background 0.3s, color 0.3s;
}

.wrap { max-width: 640px; margin: 0 auto; }

nav { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
nav a {
  padding: 8px 16px; border-radius: 999px; background: var(--card-bg);
  text-decoration: none; color: var(--primary); font-size: 14px;
  border: 1px solid rgba(22, 119, 255, 0.15);
}
nav a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.theme-toggle {
  margin-left: auto; width: 34px; height: 34px; border-radius: 999px; cursor: pointer;
  background: var(--card-bg); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; font-size: 16px; color: var(--text-2);
}

.card {
  background: var(--card-bg); backdrop-filter: blur(20px);
  border: 1px solid var(--card-border); border-radius: 16px;
  box-shadow: var(--shadow); padding: 24px; margin-bottom: 16px;
}

h1 { font-size: 20px; margin-bottom: 4px; }
.desc { color: var(--text-3); font-size: 13px; margin-bottom: 20px; line-height: 1.8; }

label { display: block; font-size: 14px; color: var(--text-2); margin: 14px 0 6px; }

input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; background: var(--card-bg); color: var(--text);
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
}

.btn {
  width: 100%; margin-top: 20px; padding: 12px; border: none; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: 15px; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--primary-hover); }
a.btn { text-decoration: none; display: block; text-align: center; }

.btns { display: flex; gap: 10px; margin-top: 20px; }
.btns .btn { flex: 1; margin-top: 0; }
.btn-save { background: var(--primary); }
.btn-test { background: #00b42a; }
.btn-test:hover { background: #27c346; }
.btn-clear { background: #ff7d00; }
.btn-clear:hover { background: #ff9433; }

.error, .err {
  background: var(--fail-bg); border: 1px solid var(--fail-border);
  color: var(--fail-text); border-radius: 8px; padding: 12px; font-size: 13px; line-height: 1.7;
}

.ok {
  background: var(--ok-bg); border: 1px solid var(--ok-border);
  color: var(--ok-text); border-radius: 8px; padding: 12px; font-size: 13px; margin-bottom: 12px;
}

.info {
  background: var(--primary-bg); border: 1px solid rgba(22, 119, 255, 0.25);
  color: var(--primary); border-radius: 8px; padding: 12px; font-size: 13px; line-height: 1.8;
}

.pay-box { text-align: center; }
.pay-box h2 { font-size: 17px; margin-bottom: 16px; }
#qrImg {
  border: 8px solid #fff; border-radius: 12px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  max-width: 240px; height: auto;
}
.pay-box p { color: var(--text-2); font-size: 13px; margin-top: 8px; word-break: break-all; }

.status-wait, .status-ok, .status-fail {
  display: inline-block; margin-top: 12px; padding: 6px 18px; border-radius: 999px; font-size: 13px;
}
.status-wait { background: var(--primary-bg); color: var(--primary); }
.status-ok { background: var(--ok-bg); color: var(--ok-text); }
.status-fail { background: var(--fail-bg); color: var(--fail-text); }

.debug {
  background: var(--debug-bg); color: var(--debug-text); border-radius: 8px; padding: 14px;
  font-family: Menlo, Consolas, monospace; font-size: 12px; line-height: 1.7; overflow-x: auto; margin-top: 16px;
}
.debug pre { margin: 8px 0 0; white-space: pre-wrap; word-break: break-all; }

.hint { color: var(--text-3); font-size: 12px; margin-top: 10px; line-height: 1.7; }
.mono { font-family: Menlo, Consolas, monospace; font-size: 12px; word-break: break-all; }

.row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--row-border); font-size: 14px; text-align: left; }
.row b { font-weight: 600; color: var(--text); }
.row span { color: var(--text-2); }

.tag { padding: 2px 10px; border-radius: 999px; font-size: 12px; }
.tag-1 { background: var(--ok-bg); color: var(--ok-text); }
.tag-0 { background: var(--primary-bg); color: var(--primary); }
.tag-2, .tag-3 { background: var(--fail-bg); color: var(--fail-text); }

.icon { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 30px; }
.icon-ok { background: var(--ok-bg); color: var(--ok-text); }
.icon-fail { background: var(--fail-bg); color: var(--fail-text); }

a.btn-link {
  display: inline-block; margin-top: 24px; padding: 11px 28px; border-radius: 999px;
  background: var(--primary); color: #fff; font-size: 14px; text-decoration: none;
}
a.btn-link:hover { background: var(--primary-hover); }

/* 移动端适配 */
@media (max-width: 640px) {
  body { padding: 20px 12px; }
  .card { padding: 18px 14px; }
  nav a { padding: 7px 12px; font-size: 13px; }
  .btns { flex-direction: column; }
  .btns .btn { width: 100%; }
}