/*===================================================
  VARIABLES
===================================================*/
:root {
  /* Typography */
  --font-heading: 'Segoe UI', sans-serif;
  --font-body: 'Segoe UI Semilight', sans-serif;

  /* Primary palette */
  --color-primary-dark:   #325569; /* deep steel blue */
  --color-primary-mid:    #c17a5a; /* warm sienna */
  --color-primary-light:  #cd9981; /* soft terracotta */

  /* Secondary palette */
  --color-secondary-1:  #88a2aa;
  --color-secondary-2:  #807775;
  --color-secondary-3:  #6e8898;
  --color-secondary-4:  #9fb1bc;
  --color-secondary-5:  #c0bcb5;
  --color-secondary-6:  #846075;
  --color-secondary-7:  #78a1bb;
  --color-secondary-8:  #d6dfd9; /* used for response & sidebar backgrounds */
  --color-secondary-9:  #706677;
  --color-secondary-10: #a6808c;
  --color-secondary-11: #8d99ae;
  --color-secondary-12: #edf2f4;
}

/*===================================================
  BASE RESET & TYPOGRAPHY
===================================================*/
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
}

/*===================================================
  LAYOUT
===================================================*/
.page-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.app-sidebar {
  background-color: var(--color-secondary-8);  /* lighter sidebar matching response panel */
  color: var(--color-primary-dark);
  width: 15%;
  padding: 20px;
  height: 100vh;
  border: 3px solid var(--color-secondary-2);  /* lighter border */
  /*box-shadow: 2px 2px 10px rgba(0,0,0,0.1);  /* lighter shadow */
}

/* Input panel */
.input-sidebar {
  background-color: var(--color-secondary-12);
  color: var(--color-primary-dark);
  width: 30%;
  padding: 10px;
  height: 95vh;
  border: 3px solid var(--color-secondary-2);
  /*box-shadow: 2px 2px 10px rgba(0,0,0,0.1);*/
  margin: 12px;
  overflow-y: auto;
}

/* Main response area */
.response-panel {
  flex-grow: 1;
  width: 55%;
  padding: 20px;
  height: 100vh;
  overflow-y: auto;
  background-color: white;
}



/*===================================================
  BUTTONS
===================================================*/
.clear-btn {
  background-color: var(--color-secondary-5);
  color: var(--color-primary-dark);
  border: none;
  padding: 0.75rem 1rem;
  cursor: pointer;
}

/* Primary action */
.add-obj-btn {
  background-color: var(--color-primary-mid);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 0.25rem;
  cursor: pointer;
}
.add-obj-btn:hover {
  background-color: var(--color-primary-light);
}

/* Secondary action */
.clear-obj-btn {
  background-color: var(--color-secondary-12);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-secondary-2);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
}
.clear-obj-btn:hover {
  background-color: var(--color-secondary-8);
}

/* Review action */
.review-btn {
  background-color: var(--color-primary-dark);
  color: #fff;
  border-radius: 0.5rem;
  padding: 0.25rem 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  cursor: pointer;
}
.review-btn:hover {
  background-color: var(--color-secondary-11);
}

/* Reload / destructive */
.reload-btn {
  background-color: var(--color-primary-light);
  color: #fff;
  border-radius: 0.5rem;
  padding: 0.25rem 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  cursor: pointer;
}
.reload-btn:hover {
  background-color: var(--color-secondary-3);
}

/*===================================================
  LINKS & NAV
===================================================*/
.btn-link {
  text-decoration: none;
  color: var(--color-primary-mid);
  padding: 0;
  margin: 0;
}
.btn-link::after {
  content: "ⓘ";
  font-size: 16px;
  margin-left: 5px;
}

/* Tabs */
.nav-tabs .nav-link {
  font-family: var(--font-body);
  color: var(--color-secondary-2);
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  border-radius: 0.25rem 0.25rem 0 0;
  padding: 0.5rem 1rem;
}
.nav-tabs .nav-link:hover,
.nav-tabs .nav-link:focus {
  color: var(--color-primary-dark);
  border-color: var(--color-secondary-2) var(--color-secondary-2) var(--color-secondary-12);
}
.nav-tabs .nav-link.active {
  color: var(--color-primary-dark);
  background-color: var(--color-secondary-12);
  border-color: var(--color-primary-dark) var(--color-primary-dark) var(--color-secondary-12);
}

/* Hint text next to buttons */
.text-hint {
  display: inline-block;
  margin-left: 0.5rem;
  font-style: italic;
  font-size: 0.875rem;
  color: var(--color-secondary-2);
  vertical-align: middle;
}

.text-low { color: #8B0000; }
.text-high { color: #006400; }

/* Logo spacing */
#tbd_logo {
  display: block;
  margin-top: 8rem; /* increase or decrease as needed */
}