tr.hidden {
  display: none;
}

/* Collapsible fieldset styles - με !important για override του theme */
fieldset.collapsible .fieldset-wrapper {
  overflow: hidden !important;
  transition:
    max-height 0.4s ease-in-out,
    opacity 0.4s ease-in-out !important;
  max-height: 2000px !important;
  opacity: 1 !important;
}

fieldset.collapsible.collapsed .fieldset-wrapper {
  max-height: 0 !important;
  opacity: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
}

@media (min-width: 768px) {
  form#hydrosep-form {
    max-width: 75%;
    margin: auto;
  }
}

form#hydrosep-form fieldset {
  border: 2px solid #e4e4e4;
  padding: 0.75em 1em 1em;
  margin: 1em 0;
}

form#hydrosep-form tr,
form#hydrosep-form th,
form#hydrosep-form tr input.form-text {
  text-align: center;
}

form#hydrosep-form ul {
  text-align: left;
}

form#hydrosep-form tr .form-item {
  white-space: normal;
}

form#hydrosep-form tr label.option {
  white-space: nowrap;
}

form#hydrosep-form .form-item label {
  display: inline;
  margin-right: 0.5em;
}

form#hydrosep-form .description {
  font-size: 0.8em;
  font-style: italic;
  padding-left: 1em;
}

form#hydrosep-form .form-radio,
form#hydrosep-form .form-checkbox {
  margin-top: 0;
}

form#hydrosep-form div.form-item {
  text-align: left;
}

/* Δίστηλη διάταξη για βασικά στοιχεία ενδιαφερόμενου σε μεγαλύτερες οθόνες */
@media (min-width: 768px) {
  form#hydrosep-form fieldset#edit-customer .form-item-customer_name,
  form#hydrosep-form fieldset#edit-customer .form-item-email,
  form#hydrosep-form fieldset#edit-customer .form-item-company,
  form#hydrosep-form fieldset#edit-customer .form-item-phone,
  form#hydrosep-form fieldset#edit-customer .form-item-address,
  form#hydrosep-form fieldset#edit-customer .form-item-zip_city {
    width: 48%;
    float: left;
  }

  form#hydrosep-form fieldset#edit-customer .form-item-customer_name,
  form#hydrosep-form fieldset#edit-customer .form-item-company,
  form#hydrosep-form fieldset#edit-customer .form-item-address {
    margin-right: 4%;
  }
}

/* Text inputs styling aligned with Drupal module */
form#hydrosep-form fieldset input.form-text {
  border: 2px solid #e4e4e4;
  transition: all 300ms ease 0s;
}

form#hydrosep-form textarea,
form#hydrosep-form input.form-text {
  background: transparent none repeat scroll 0 0;
  border: 3px solid #f1f9ff;
  color: #989c9c;
  font-size: 15px;
  padding: 15px;
  height: auto;
  width: 100%;
  box-sizing: border-box;
}

/* Focus styles for inputs/textareas/buttons, like Drupal */
form#hydrosep-form fieldset input.form-text:focus {
  border: 2px solid #000000;
}

.form-text:focus,
.form-text:active,
textarea:focus,
textarea:active,
button:focus {
  color: #000000;
  border-color: #000000;
  background-color: #ffffff;
  box-shadow: none;
  outline: 0;
}

/* Select styling aligned with Drupal module, with chevron */
form#hydrosep-form fieldset select {
  background-color: #ffffff;
  border: 2px solid #e4e4e4;
  height: auto;
  padding: 9px 38px 9px 9px;
  font-size: 14px;
  -webkit-appearance: none;
  -moz-appearance: none;
  text-indent: 1px;
  text-overflow: "";
  box-shadow: none;
  /* CSS chevron arrow instead of image */
  background-image:
    linear-gradient(45deg, transparent 50%, #000000 50%),
    linear-gradient(135deg, #000000 50%, transparent 50%),
    linear-gradient(to right, #e4e4e4, #e4e4e4);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%,
    calc(100% - 2.5em) 50%;
  background-size:
    6px 6px,
    6px 6px,
    1px 60%;
  background-repeat: no-repeat;
  height: 51px;
}

form#hydrosep-form .form-item {
  margin: 0.4em 0;
}

form#hydrosep-form fieldset#guidelines_fdset {
  margin-bottom: 1em;
}

/* FontAwesome icons for guidelines fieldset (collapsed / expanded) */
form#hydrosep-form
  fieldset#guidelines_fdset.collapsed
  legend
  span.fieldset-legend:before {
  content: "\f067";
  color: #3399ff;
  display: inline-block;
  font-family: FontAwesome;
  font-size: 17px;
  font-style: normal;
  font-weight: normal;
  margin-right: 15px;
  line-height: 20px;
}

form#hydrosep-form
  fieldset#guidelines_fdset
  legend
  span.fieldset-legend:before {
  content: "\f068";
  color: #3399ff;
  display: inline-block;
  font-family: FontAwesome;
  font-size: 17px;
  font-style: normal;
  font-weight: normal;
  margin-right: 15px;
  line-height: 20px;
}

/* Collapsible fieldset styling (Drupal-like) */
form#hydrosep-form fieldset.collapsible legend {
  cursor: pointer;
}

form#hydrosep-form fieldset.collapsible .fieldset-wrapper {
  margin-top: 0.5em;
}

form#hydrosep-form fieldset.collapsible.collapsed .fieldset-wrapper {
  display: none;
}

/* Γενικές ρυθμίσεις για fieldset-wrapper */
form#hydrosep-form fieldset .fieldset-wrapper {
  padding: 5px 10px;
  background: #ffffff;
  border: none;
}

form#hydrosep-form #guidelines_fdset ol {
  padding-left: 8px;
}

form#hydrosep-form .fieldset-legend {
  font-weight: bold;
}

form#hydrosep-form .form-required {
  color: #f00;
}

/* Submit buttons (ίδιο style με grease plugin) */
form#hydrosep-form .form-submit,
form.hydrosep-results-actions .form-submit {
  background: #000000;
  border: 1px solid #000000;
  border-radius: 0;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  padding: 17px 35px;
  transition: all 300ms ease 0s;
  text-shadow: none;
  box-shadow: none;
  cursor: pointer;
  margin-bottom: 20px;
}

form#hydrosep-form .form-submit:hover,
form.hydrosep-results-actions .form-submit:hover {
  opacity: 0.9;
}

/* Error highlighting similar to grease */
form#hydrosep-form label.form-item.has-error {
  color: #ff0000;
}

form#hydrosep-form .form-item.has-error > label,
form#hydrosep-form .form-item.has-error > span {
  color: #ff0000;
}

form#hydrosep-form div.add-tr {
  float: right;
  margin-right: 2em;
}

form#hydrosep-form span.footnote,
span.footnote {
  color: blue;
  font-weight: bold;
  font-size: 1.2em;
}

form#hydrosep-form div.footnotes,
div.footnotes {
  margin-top: 50px;
  border-top: 1px solid #bbb;
}

form#hydrosep-form div.footnotes p,
div.footnotes p {
  margin-top: 0;
  font-size: 0.8em;
}

/* Tables: results, input data, draw offs */
form#hydrosep-form table#hydro_results,
form#hydrosep-form table#hydro_input_data,
form#hydrosep-form table#draw_offs_table,
table#hydro_results,
table#hydro_input_data,
table#draw_offs_table {
  font-size: 1em;
  border: 1px solid #ccc;
  width: 100%;
  margin-top: 20px;
}

form#hydrosep-form table#hydro_results caption,
form#hydrosep-form table#hydro_input_data caption,
table#hydro_results caption,
table#hydro_input_data caption {
  font-size: 1.6em;
  font-weight: bold;
  color: #000000;
  text-align: center;
  margin-bottom: 20px;
}

form#hydrosep-form table#hydro_results thead th,
form#hydrosep-form table#hydro_input_data thead th,
form#hydrosep-form table#draw_offs_table thead th,
form#hydrosep-form table#hydro_results th,
form#hydrosep-form table#hydro_input_data th,
form#hydrosep-form table#draw_offs_table th,
table#hydro_results thead th,
table#hydro_input_data thead th,
table#draw_offs_table thead th,
table#hydro_results th,
table#hydro_input_data th,
table#draw_offs_table th {
  background: #f7f7f7;
  border-bottom: 1px solid #ccc;
  color: #333;
}

form#hydrosep-form table#hydro_results td,
form#hydrosep-form table#hydro_results th,
form#hydrosep-form table#hydro_input_data td,
form#hydrosep-form table#hydro_input_data th,
form#hydrosep-form table#draw_offs_table td,
form#hydrosep-form table#draw_offs_table th,
table#hydro_results td,
table#hydro_results th,
table#hydro_input_data td,
table#hydro_input_data th,
table#draw_offs_table td,
table#draw_offs_table th {
  padding: 4px 8px;
  vertical-align: middle;
}

form#hydrosep-form table#hydro_results tr.even td,
form#hydrosep-form table#hydro_input_data tr.even td,
form#hydrosep-form table#draw_offs_table tr.even td,
table#hydro_results tr.even td,
table#hydro_input_data tr.even td,
table#draw_offs_table tr.even td {
  background: #f1f5fa;
}

form#hydrosep-form table#hydro_results tr.odd td,
form#hydrosep-form table#hydro_input_data tr.odd td,
form#hydrosep-form table#draw_offs_table tr.odd td,
table#hydro_results tr.odd td,
table#hydro_input_data tr.odd td,
table#draw_offs_table tr.odd td {
  background: #fff;
}

form#hydrosep-form table#hydro_results tr:hover td,
form#hydrosep-form table#hydro_input_data tr:hover td,
form#hydrosep-form table#draw_offs_table tr:hover td,
table#hydro_results tr:hover td,
table#hydro_input_data tr:hover td,
table#draw_offs_table tr:hover td {
  background: #e6f0ff;
}

/* Sludge trap table styling - consistent with other tables */
form#hydrosep-form table.sludge-table,
table.sludge-table {
  font-size: 1em;
  border: 1px solid #ccc;
  width: 100%;
  margin-top: 20px;
}

form#hydrosep-form table.sludge-table thead th,
table.sludge-table thead th {
  background: #f7f7f7;
  border-bottom: 1px solid #ccc;
  color: #333;
  padding: 4px 8px;
}

form#hydrosep-form table.sludge-table td,
form#hydrosep-form table.sludge-table th,
table.sludge-table td,
table.sludge-table th {
  padding: 4px 8px;
  vertical-align: middle;
  border-bottom: 1px solid #ccc;
}

form#hydrosep-form table.sludge-table td:first-child,
form#hydrosep-form table.sludge-table th:first-child,
table.sludge-table td:first-child,
table.sludge-table th:first-child {
  border-left: 1px solid #ccc;
  width: 20%;
}

form#hydrosep-form table.sludge-table td:last-child,
form#hydrosep-form table.sludge-table th:last-child,
table.sludge-table td:last-child,
table.sludge-table th:last-child {
  border-right: 1px solid #ccc;
}

form#hydrosep-form table.sludge-table tr.even td,
table.sludge-table tr.even td {
  background: #f1f5fa;
}

form#hydrosep-form table.sludge-table tr.odd td,
table.sludge-table tr.odd td {
  background: #fff;
}

form#hydrosep-form table.sludge-table tr:hover td,
table.sludge-table tr:hover td {
  background: #e6f0ff;
}

form#hydrosep-form table.sludge-table input[type="radio"],
table.sludge-table input[type="radio"] {
  margin-right: 5px;
  vertical-align: middle;
  display: inline-block;
}

form#hydrosep-form table.sludge-table label.option,
table.sludge-table label.option {
  display: inline;
  margin: 0;
  white-space: nowrap;
}

/* Ειδικά styles για τα κουμπιά αποτελεσμάτων (βήμα 2) */
form#hydrosep-form .btn-back,
form.hydrosep-results-actions .btn-back {
  background: none;
  border: 1px solid #000000;
  color: #000000;
}

form#hydrosep-form .btn-pdf,
form.hydrosep-results-actions .btn-pdf {
  background: #000000;
  border: 1px solid #000000;
  color: #ffffff;
}

/* Απόσταση κουμπιών αποτελεσμάτων από πίνακα */
form#hydrosep-form .btn-container,
form.hydrosep-results-actions .btn-container {
  margin-top: 20px;
  margin-bottom: 20px;
}

/* Help guide styling - centered */
div#help_guide {
  margin-bottom: 1em;
  text-align: center;
  font-weight: bold;
  font-size: 1.3em;
}