* {
  box-sizing: border-box;
}

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-body: #07172f;
  --bg-panel: #0b2143;
  --card-border: rgba(148, 163, 184, 0.22);
  --text-main: #eef6ff;
  --text-muted: #9fb3cc;
  --input-bg: #081a35;
  --danger: #fca5a5;
  --success: #86efac;
  --radius: 14px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.app-page,
.login-page {
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.24), transparent 34%),
    linear-gradient(135deg, #041026 0%, #07172f 52%, #09244a 100%);
  color: var(--text-main);
}

.app-center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.topbar {
  background: rgba(7, 23, 47, 0.84);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  padding: 14px clamp(16px, 4vw, 36px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.org-name,
.brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.user-actions,
.nav-actions {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-actions a,
.nav-actions a {
  color: #ffffff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.22);
  border: 1px solid rgba(96, 165, 250, 0.32);
}

.user-actions a.logout,
.nav-actions a.logout {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(248, 113, 113, 0.32);
}

.container {
  width: min(100%, 560px);
  margin: 48px auto;
  padding: 0 18px;
}

.form-card,
.login-card,
.card {
  background: rgba(15, 45, 87, 0.9);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.form-card {
  padding: clamp(22px, 5vw, 34px);
}

.form-card h3,
h1 {
  margin: 0 0 24px;
  text-align: center;
  font-size: clamp(1.35rem, 4vw, 1.75rem);
}

.input-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

select,
input,
textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1.5px solid rgba(148, 163, 184, 0.28);
  font-size: 16px;
  transition: all 0.2s ease;
  outline: none;
  background: var(--input-bg);
  color: var(--text-main);
}

textarea {
  min-height: 96px;
  resize: vertical;
}

select option {
  color: #0f172a;
}

input::placeholder,
textarea::placeholder {
  color: #6f86a5;
}

select:focus,
input:focus,
textarea:focus {
  border-color: var(--primary);
  background: #0a1f3f;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

button,
.card a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  width: 100%;
  margin-top: 10px;
  background: var(--primary);
  color: #ffffff;
  padding: 14px 16px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

button:hover,
.card a:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.secondary-btn {
  background: #1d4ed8;
}

.message {
  margin-bottom: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 14px;
}

.message.error,
.error {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.14);
  border: 1px solid rgba(248, 113, 113, 0.24);
}

.message.success {
  color: var(--success);
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.24);
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2, 8, 23, 0.72);
  backdrop-filter: blur(8px);
  justify-content: center;
  align-items: center;
  padding: 18px;
  z-index: 1000;
}

.modal-card {
  background: var(--bg-panel);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px;
  width: min(100%, 380px);
  max-width: 360px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

#qrContainer img {
  width: 220px;
  height: 220px;
  margin: 15px auto;
  border-radius: 12px;
  border: 8px solid #ffffff;
  display: block;
}

#payUrl a {
  color: #93c5fd;
  word-break: break-all;
  font-size: 0.9rem;
  text-decoration: none;
  font-weight: 500;
}

.skeleton {
  width: 220px;
  height: 220px;
  background: linear-gradient(90deg, #0b2143, #173b70, #0b2143);
  background-size: 200%;
  animation: skeletonLoading 1.5s infinite;
  margin: 15px auto;
  border-radius: 12px;
}

@keyframes skeletonLoading {
  from { background-position: -200px 0; }
  to { background-position: 200px 0; }
}

.footer {
  margin-top: 60px;
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card {
  width: min(100%, 380px);
  padding: 30px 35px;
}

.login-card h2 {
  margin: 0 0 25px;
  font-size: 24px;
  text-align: center;
}

.not-found-card {
  width: min(100%, 440px);
  padding: 34px;
  text-align: center;
}

.code {
  margin: 0;
  font-size: clamp(4rem, 20vw, 7rem);
  line-height: 1;
  font-weight: 800;
  color: #93c5fd;
}

.not-found-card p {
  margin: 0 0 24px;
  color: #9fb3cc;
}

@media (max-width: 560px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .user-actions,
  .nav-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .container {
    margin: 28px auto;
  }
}