/* ============================================================
   UNIVERSAL BOX SIZING & FONT
============================================================ */
* {
  box-sizing: border-box;
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ============================================================
   FORM GROUP & LABELS
============================================================ */
.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #334155;
}

/* ============================================================
   INPUTS, SELECT & TEXTAREA
============================================================ */
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
  color: #0f172a;
  background-color: #ffffff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94a3b8;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* ============================================================
   BUTTON STYLES
============================================================ */
.form-btn {
  width: 100%;
  padding: 13px 20px;
  background-color: #2563eb;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.form-btn:hover {
  background-color: #1d4ed8;
}

.form-btn:active {
  transform: scale(0.99);
}

.form-btn:disabled {
  background-color: #94a3b8;
  cursor: not-allowed;
  transform: none;
}

/* ============================================================
   ALERT / STATUS MESSAGES
============================================================ */
.form-alert {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 13px;
  text-align: center;
  font-weight: 500;
  line-height: 1.4;
}

.alert-success {
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ============================================================
   MODAL POPUP OVERLAY & ANIMATION
============================================================ */
.popup-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(3px);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 15px;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.popup-overlay > div {
  animation: modalFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}