:root {
  --color-dark: #1a1a1a;
  --color-gray-dark: #2d2d2d;
  --color-gray-medium: #4a4a4a;
  --input-focus-border: #6b7280;
  --table-header-bg: #3c3c3c;
  --color-text-light: #e0e0e0;
  --color-footer-text: #a0a0a0;
  --hover-gray: #3c3c3c;
}

body {
  background: var(--color-dark);
  max-width: 700px;
  margin: 0 auto;
  padding: 20px;
  font-size: 16px;
  overflow-y: scroll;
  color: var(--color-text-light);
  font-family: "Roboto", sans-serif;
}

main {
  min-height: calc(100vh - 100px);
}

.header-container {
  margin-top: -30px;
  margin-bottom: -20px;
  display: flex;
  align-items: center;
}

#logo-link {
  width: 100%;
  max-width: 240px;
  height: auto;
  margin: 20px 160px 20px -400px;
  display: block;
  text-decoration: none;
  cursor: pointer;
}

.header-image {
  width: 100%;
  height: auto;
  display: block;
}

h2 {
  margin: 0;
  color: var(--color-text-light);
}

.search-and-filter input {
  padding: 8px 12px;
  border: 1px solid var(--color-gray-medium);
  border-radius: 4px;
  width: 230px;
  -webkit-transition: border-color 0.3s ease;
  -moz-transition: border-color 0.3s ease;
  transition: border-color 0.3s ease;
  height: 36px;
  box-sizing: border-box;
  font-size: 1rem;
  background-color: var(--color-gray-dark);
  color: var(--color-text-light);
}
.search-and-filter input:focus {
  outline: none;
  border-color: var(--input-focus-border);
}

.sorting-container {
  margin: 15px 0;
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  align-items: center;
}

.controls-label {
  font-weight: bold;
  margin: 0;
  font-size: 1rem;
}

.provider-select,
.best-rate-select {
  padding: 8px 12px;
  border: 1px solid var(--color-gray-medium);
  border-radius: 4px;
  background-color: var(--color-gray-dark);
  font-size: 1rem;
  cursor: pointer;
  -webkit-transition: border-color 0.3s ease, background-color 0.2s ease;
  -moz-transition: border-color 0.3s ease, background-color 0.2s ease;
  transition: border-color 0.3s ease, background-color 0.2s ease;
  height: 36px;
  box-sizing: border-box;
  line-height: 1;
  color: var(--color-text-light);
}

.provider-select {
  width: 174px;
}

.provider-select:focus,
.best-rate-select:focus {
  outline: none;
  border-color: var(--input-focus-border);
}

.best-rate-select {
  width: 115px;
}

.best-rate-select.hidden {
  display: none;
}

.currency-combobox {
  position: relative;
  width: 131px;
}

.currency-combobox input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-gray-medium);
  border-radius: 4px;
  font-size: 1rem;
  box-sizing: border-box;
  -webkit-transition: border-color 0.3s ease;
  -moz-transition: border-color 0.3s ease;
  transition: border-color 0.3s ease;
  background-color: var(--color-gray-dark);
  color: var(--color-text-light);
}

.currency-combobox input:focus {
  outline: none;
  border-color: var(--input-focus-border);
}

.currency-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-gray-dark);
  border: 1px solid var(--color-gray-medium);
  border-radius: 4px;
  max-height: 200px;
  overflow-y: auto;
  display: none;
  z-index: 10;
}

.currency-options.show {
  display: block;
}

.currency-options div {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1rem;
}

.currency-options div:hover {
  background-color: var(--hover-gray);
}

.provider-section {
  background-color: var(--color-gray-dark);
  border-radius: 8px;
  padding: 10px;
  margin: 15px 0;
  border: 1px solid var(--color-gray-medium);
  width: 100%;
  box-sizing: border-box;
  -webkit-transition: transform 0.3s ease;
  -moz-transition: transform 0.3s ease;
  transition: transform 0.3s ease;
}

.provider-section h2 {
  margin: 0 0 10px 0;
  padding: 10px;
  font-size: 1.25rem;
  font-weight: 600;
  background-color: var(--table-header-bg);
  border-bottom: 2px solid var(--color-gray-medium);
  border-radius: 4px 4px 0 0;
}

.provider-section:hover {
  -webkit-transform: translateY(-2px);
  -moz-transform: translateY(-2px);
  transform: translateY(-2px);
}

.provider-section td .flag-container {
  display: inline-block;
  width: 24px;
  height: 20px;
  margin-right: 5px;
  vertical-align: middle;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
}

.provider-section td {
  padding: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-gray-medium);
}

th {
  background-color: var(--table-header-bg);
  font-weight: 600;
}

.no-results {
  padding: 15px;
  text-align: center;
  background-color: var(--color-gray-dark);
  border-radius: 4px;
  margin: 10px 0;
}

footer {
  margin-top: 30px;
  text-align: center;
  color: var(--color-footer-text);
  font-size: 0.9em;
}

footer a {
  color: var(--color-footer-text);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 1500px) {
  #logo-link {
    margin-left: -10px;
    margin-right: 40px;
    max-width: 220px;
  }
}

@media (max-width: 1200px) {
  body {
    font-size: 0.9375rem;
  }
  #logo-link {
    margin-right: 30px;
    max-width: 190px;
  }
}

@media (max-width: 992px) {
  body {
    font-size: 0.875rem;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 0.8125rem;
  }
  #logo-link {
    margin-left: 0;
    margin-right: 20px;
    max-width: 180px;
  }
}

@media (max-width: 560px) {
  .search-and-filter input {
    width: 200px;
    height: 30px;
    padding: 6px 10px;
    font-size: 0.86rem;
  }
  .best-rate-select {
    width: 94px;
    height: 30px;
    padding: 6px 10px;
    font-size: 0.75rem;
  }
  .provider-select {
    width: 140px;
    height: 30px;
    padding: 6px 10px;
    font-size: 0.75rem;
  }
  .currency-combobox {
    width: 110px;
  }
  .currency-combobox input {
    height: 30px;
    padding: 6px 10px;
    font-size: 0.75rem;
  }
}

@media (max-width: 505px) {
  .search-and-filter input {
    font-size: 0.85rem;
  }
  .best-rate-select {
    width: 84px;
    font-size: 0.6rem;
  }
  .provider-select {
    width: 120px;
    font-size: 0.6rem;
  }
  .currency-combobox {
    width: 90px;
  }
  .currency-combobox input {
    font-size: 0.6rem;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 0.75rem;
  }
  .provider-section h2 {
    font-size: 0.85rem;
  }
  .header-container {
    margin-bottom: 0.1px;
  }
  #logo-link {
    margin: 10px 0;
    max-width: 150px;
  }

  .provider-section td .flag-container {
    width: 16px;
    height: 13px;
    margin-right: 3px;
  }

  .provider-section td {
    padding: 4px;
  }
}

@media (max-width: 450px) {
  .search-and-filter input {
    height: 28px;
    padding: 2px 6px;
  }
  .best-rate-select {
    width: 69px;
    height: 28px;
    padding: 2px 6px;
    font-size: 0.5rem;
  }
  .provider-select {
    width: 100px;
    height: 28px;
    padding: 2px 6px;
    font-size: 0.5rem;
  }
  .currency-combobox {
    width: 70px;
  }

  .currency-options div {
    font-size: 0.6rem;
  }
  .currency-combobox input {
    height: 28px;
    padding: 2px 6px;
    font-size: 0.5rem;
  }
  .controls-label {
    font-size: 0.75rem;
  }
}

@media (max-width: 370px) {
  .header-container h2 {
    font-size: 0.75rem;
  }
  #logo-link {
    max-width: 130px;
  }
}

@media (max-width: 350px) {
  .header-container h2 {
    font-size: 0.65rem;
  }
  .controls-label {
    flex: 0 0 100%;
    font-size: 0.7rem;
  }
  .provider-select {
    width: 90px;
    height: 26px;
    padding: 2px 4px;
  }
  .currency-combobox {
    width: 65px;
  }
  .currency-combobox input {
    height: 26px;
    padding: 2px 4px;
  }
  .currency-options div {
    font-size: 0.5rem;
    padding: 4px 4px;
  }
  .best-rate-select {
    width: 65px;
    height: 26px;
    padding: 2px 4px;
  }
  #logo-link {
    max-width: 120px;
  }
}

@media (max-width: 335px) {
  .header-container {
    flex-direction: column;
    align-items: flex-start;
    margin-top: -20px;
    margin-bottom: 15px;
  }
}
@media print {
  @page {
    margin: 0;
  }
  .search-and-filter input,
  .sorting-container,
  footer {
    display: none;
  }
}