:root {
  color-scheme: dark;
  --bg: #0a1020;
  --panel: rgba(13, 23, 45, 0.92);
  --panel-soft: rgba(15, 27, 51, 0.96);
  --primary: #63e9ff;
  --primary-dark: #3ab8d4;
  --text: #e8f3ff;
  --muted: #7f95b7;
  --line: rgba(99, 233, 255, 0.18);
  --shadow: 0 0 0 1px rgba(99, 233, 255, 0.03), 0 16px 50px rgba(2, 8, 23, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(55, 182, 255, 0.12), transparent 24%),
    radial-gradient(circle at top right, rgba(130, 94, 255, 0.1), transparent 28%),
    linear-gradient(180deg, #070d1a 0%, #09111f 100%);
  color: var(--text);
}

.back-nav {
  padding: 12px 18px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 8px;
  background: rgba(15, 27, 51, 0.8);
  border: 1px solid rgba(99, 233, 255, 0.2);
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.page {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 28px 18px 48px;
}

.hero {
  padding: 20px 6px 10px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 12px;
  letter-spacing: 0.28em;
}

.hero h1 {
  margin: 0;
  font-size: 34px;
  color: var(--primary);
}

.hero-copy {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.card,
.result-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.card {
  padding: 20px;
}

.form {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span,
.upload-title {
  font-weight: 700;
  color: var(--text);
}

input,
select,
.submit-button {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--text);
  background: var(--panel-soft);
}

input::placeholder {
  color: var(--muted);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 233, 255, 0.15);
}

select {
  cursor: pointer;
}

select option {
  background: #0f1b33;
  color: var(--text);
}

.member-picker {
  position: relative;
}

.member-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 10;
  max-height: 220px;
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.member-results::-webkit-scrollbar {
  width: 4px;
}

.member-results::-webkit-scrollbar-track {
  background: rgba(102, 122, 166, 0.1);
  border-radius: 2px;
}

.member-results::-webkit-scrollbar-thumb {
  background: rgba(99, 233, 255, 0.3);
  border-radius: 2px;
}

.member-option {
  display: block;
  width: 100%;
  padding: 12px 14px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font-size: 14px;
}

.member-option:hover {
  background: rgba(99, 233, 255, 0.1);
}

.selected-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.upload-box {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px dashed rgba(99, 233, 255, 0.35);
  border-radius: 14px;
  background: rgba(15, 27, 51, 0.6);
  cursor: pointer;
  transition: all 0.2s;
}

.upload-box:hover {
  border-color: var(--primary);
  background: rgba(99, 233, 255, 0.05);
}

.upload-copy,
.hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.preview {
  display: flex;
  justify-content: center;
  border-radius: 14px;
  padding: 14px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
}

.preview img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 10px;
}

.submit-button {
  border: 0;
  color: #0a1020;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  cursor: pointer;
  transition: all 0.2s;
}

.submit-button:hover {
  box-shadow: 0 0 20px rgba(99, 233, 255, 0.3);
  transform: translateY(-1px);
}

.submit-button:active {
  transform: translateY(0);
}

.result-card {
  margin-top: 18px;
  padding: 20px;
}

.result-card h2 {
  margin: 0 0 8px;
  color: var(--primary);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 700;
}

.status-pill.approved {
  background: rgba(99, 233, 255, 0.15);
  color: var(--primary);
}

.status-pill.pending {
  background: rgba(240, 165, 77, 0.15);
  color: #f0a54d;
}

.hidden {
  display: none;
}

.toast-notification {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  z-index: 9999;
  padding: 20px 32px;
  border-radius: 16px;
  background: rgba(15, 27, 51, 0.95);
  border: 1px solid rgba(99, 233, 255, 0.3);
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  white-space: pre-line;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  max-width: 85vw;
}

.toast-notification.toast-show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.toast-notification.toast-warning {
  border-color: rgba(240, 165, 77, 0.5);
  background: rgba(240, 165, 77, 0.15);
}

.toast-notification.toast-error {
  border-color: rgba(255, 100, 100, 0.5);
  background: rgba(255, 100, 100, 0.15);
}

.toast-notification.toast-success {
  border-color: rgba(99, 233, 255, 0.5);
  background: rgba(99, 233, 255, 0.15);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.submit-button.shake {
  animation: shake 0.5s ease-in-out;
}

.site-footer {
  padding: 24px 18px 16px;
  text-align: center;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--primary);
}