:root {
  --bg: #f2ede3;
  --panel: rgba(255, 250, 242, 0.88);
  --panel-strong: #fff9f2;
  --line: rgba(77, 53, 27, 0.14);
  --text: #2f2318;
  --muted: #7a6756;
  --accent: #bf5b2c;
  --accent-deep: #8f3d18;
  --accent-soft: #f4d1bc;
  --good: #2f7d57;
  --shadow: 0 24px 80px rgba(76, 49, 24, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(191, 91, 44, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(47, 125, 87, 0.12), transparent 20%),
    linear-gradient(180deg, #efe2cf 0%, var(--bg) 52%, #ebe3d7 100%);
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.login-panel {
  min-height: calc(100vh - 96px);
  display: grid;
  place-items: center;
}

.login-card {
  width: min(520px, 100%);
  padding: 32px;
  border-radius: 32px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.auth-head {
  margin-bottom: 22px;
}

.auth-switch {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(47, 35, 24, 0.06);
  margin-bottom: 18px;
}

.auth-tab {
  min-width: 88px;
  padding: 10px 16px;
  background: transparent;
  color: var(--muted);
}

.auth-tab.is-active {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: white;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.login-intro {
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.app-topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.brand-lockup h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.account-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-card,
.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-copy {
  padding: 48px;
  border-radius: 36px;
  position: relative;
  overflow: hidden;
}

.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(191, 91, 44, 0.22), transparent 70%);
}

.eyebrow,
.panel-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--accent-deep);
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(34px, 5vw, 62px);
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.intro {
  margin: 0;
  max-width: 620px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.notify-card {
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(191, 91, 44, 0.08);
  border: 1px solid rgba(191, 91, 44, 0.16);
  width: fit-content;
  max-width: 100%;
}

.notify-title {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
}

.notify-status {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.top-user {
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 249, 242, 0.52);
  border: 1px solid rgba(77, 53, 27, 0.1);
  max-width: 100%;
}

.user-caption {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.user-summary {
  margin: 0;
  font-weight: 700;
  word-break: break-all;
}

.hero-card {
  border-radius: 36px;
  padding: 22px;
}

.form-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 249, 242, 0.96), rgba(255, 249, 242, 0.8));
  border: 1px solid var(--line);
  min-height: 100%;
}

label {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label span {
  font-size: 14px;
  font-weight: 700;
}

textarea,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  color: var(--text);
  background: #fffdf9;
  outline: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

textarea:focus,
input:focus {
  border-color: rgba(191, 91, 44, 0.6);
  transform: translateY(-1px);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

button,
.open-btn {
  border: none;
  border-radius: 999px;
  padding: 14px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

button:hover,
.open-btn:hover {
  transform: translateY(-1px);
}

#submitBtn {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: white;
}

.ghost-btn {
  background: rgba(47, 35, 24, 0.08);
  color: var(--text);
}

.form-message {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
}

.form-message.success {
  color: var(--good);
}

.form-message.error {
  color: #b22d2d;
}

.panel {
  margin-top: 24px;
  border-radius: 36px;
  padding: 26px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.summary {
  margin-bottom: 18px;
  color: var(--muted);
}

.empty-state {
  padding: 24px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px dashed var(--line);
  color: var(--muted);
}

.link-list {
  display: grid;
  gap: 14px;
}

.link-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 20px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.link-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.short-link {
  color: var(--accent-deep);
  font-weight: 800;
  font-size: 18px;
  text-decoration: none;
  word-break: break-all;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 700;
}

.long-link,
.meta {
  margin: 0;
  word-break: break-all;
}

.long-link {
  color: var(--text);
}

.meta {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.copy-btn {
  background: rgba(47, 125, 87, 0.12);
  color: var(--good);
}

.open-short-btn,
.open-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.open-short-btn {
  background: rgba(191, 91, 44, 0.12);
  color: var(--accent-deep);
}

.open-btn {
  background: rgba(47, 35, 24, 0.08);
  color: var(--text);
}

.danger {
  background: rgba(178, 45, 45, 0.12);
  color: #b22d2d;
}

@media (max-width: 900px) {
  .app-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .account-controls {
    justify-content: space-between;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .link-card {
    grid-template-columns: 1fr;
  }

  .actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 1180px);
    padding-top: 20px;
  }

  .account-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-copy,
  .hero-card,
  .panel {
    border-radius: 26px;
  }

  .hero-copy,
  .panel {
    padding: 22px;
  }

  .hero-card {
    padding: 14px;
  }

  .form-card {
    padding: 18px;
  }

  .grid-two,
  .panel-head {
    grid-template-columns: 1fr;
    display: grid;
  }
}