:root {
  --bbfs-bg: #000000;
  --bbfs-bg-2: #080808;
  --bbfs-bg-3: #111111;

  --bbfs-panel: #1d1d1d;
  --bbfs-panel-soft: #2b2b2b;
  --bbfs-panel-deep: #121212;

  --bbfs-red: #e60000;
  --bbfs-red-2: #ff1717;
  --bbfs-red-dark: #9f0000;

  --bbfs-white: #ffffff;
  --bbfs-text: #ffffff;
  --bbfs-muted: #c7c7c7;
  --bbfs-muted-2: #8d8d8d;

  --bbfs-border: rgba(255, 255, 255, 0.35);
  --bbfs-border-soft: rgba(255, 255, 255, 0.18);
  --bbfs-border-red: rgba(255, 23, 23, 0.72);

  --bbfs-shadow-red: 0 0 18px rgba(230, 0, 0, 0.36);
  --bbfs-shadow-soft: 0 16px 35px rgba(0, 0, 0, 0.52);

  --bbfs-radius: 8px;
  --bbfs-radius-sm: 5px;
  --bbfs-page-max: 1680px;
  --bbfs-control-max: 980px;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(230, 0, 0, 0.22) 0, rgba(230, 0, 0, 0.05) 22%, transparent 46%),
    linear-gradient(180deg, var(--bbfs-bg) 0%, var(--bbfs-bg-2) 48%, var(--bbfs-bg) 100%);
  color: var(--bbfs-text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

::selection {
  background: var(--bbfs-red);
  color: var(--bbfs-white);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.bbfs-page {
  width: min(var(--bbfs-page-max), calc(100% - 42px));
  margin: 0 auto;
  padding: clamp(22px, 3vw, 42px) 0 18px;
}

.bbfs-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.bbfs-section-top {
  margin-bottom: clamp(54px, 6vw, 82px);
}

.bbfs-title {
  position: relative;
  margin: 0 0 14px;
  color: var(--bbfs-white);
  font-size: clamp(30px, 2.55vw, 46px);
  font-weight: 800;
  line-height: 1.08;
  text-align: center;
  letter-spacing: -0.02em;
  text-shadow:
    2px 2px 0 var(--bbfs-red-dark),
    0 0 16px rgba(230, 0, 0, 0.34),
    0 2px 0 #000000;
}

.bbfs-title::after {
  content: "";
  display: block;
  width: min(230px, 68vw);
  height: 3px;
  margin: 10px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--bbfs-red-2), var(--bbfs-white), var(--bbfs-red-2), transparent);
  box-shadow: var(--bbfs-shadow-red);
}

.bbfs-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.bbfs-form-small {
  width: min(380px, 100%);
}

.bbfs-input,
.bbfs-select,
.bbfs-textarea {
  background: linear-gradient(180deg, var(--bbfs-panel-soft), var(--bbfs-panel));
  border: 1px solid var(--bbfs-border);
  border-radius: var(--bbfs-radius-sm);
  color: var(--bbfs-text);
  outline: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -12px 24px rgba(0, 0, 0, 0.16);
}

.bbfs-input:hover,
.bbfs-select:hover,
.bbfs-textarea:hover {
  border-color: rgba(255, 255, 255, 0.5);
}

.bbfs-input:focus,
.bbfs-select:focus,
.bbfs-textarea:focus,
.bbfs-btn:focus-visible {
  border-color: var(--bbfs-red-2);
  box-shadow:
    0 0 0 3px rgba(230, 0, 0, 0.25),
    0 0 16px rgba(230, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.bbfs-input {
  width: 100%;
  min-height: 40px;
  padding: 7px 12px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  letter-spacing: 0.03em;
}

.bbfs-input-main {
  width: min(250px, 100%);
}

.bbfs-input::placeholder {
  color: var(--bbfs-muted-2);
  font-weight: 500;
  opacity: 1;
}

.bbfs-control-row,
.bbfs-action-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
}

.bbfs-control-row-bottom {
  width: min(var(--bbfs-control-max), 100%);
  margin-top: 14px;
}

.bbfs-select {
  min-width: 56px;
  height: 34px;
  padding: 2px 9px;
  color: var(--bbfs-white);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.bbfs-select option {
  background: #161616;
  color: var(--bbfs-white);
}

.bbfs-btn {
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--bbfs-border-red);
  border-radius: var(--bbfs-radius-sm);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent 36%),
    linear-gradient(180deg, var(--bbfs-red-2), var(--bbfs-red-dark));
  color: var(--bbfs-white);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.15;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.78);
  box-shadow:
    0 4px 0 #5d0000,
    0 8px 18px rgba(230, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.36);
  transition:
    transform 0.16s ease,
    filter 0.16s ease,
    border-color 0.16s ease,
    box-shadow 0.16s ease;
}

.bbfs-btn:hover {
  filter: brightness(1.12);
  border-color: rgba(255, 255, 255, 0.82);
  box-shadow:
    0 4px 0 #5d0000,
    0 10px 22px rgba(230, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.44);
}

.bbfs-btn:active {
  transform: translateY(3px);
  box-shadow:
    0 1px 0 #5d0000,
    0 5px 12px rgba(230, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.bbfs-output-wrap {
  position: relative;
  width: 100%;
  margin-top: 64px;
}

.bbfs-output-tab {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 2;
  width: min(430px, 88%);
  min-height: 38px;
  padding: 8px 14px;
  transform: translate(-50%, -100%);
  overflow: hidden;
  background:
    linear-gradient(180deg, #303030, #1d1d1d);
  border: 1px solid var(--bbfs-border-red);
  border-bottom: 0;
  border-radius: var(--bbfs-radius) var(--bbfs-radius) 0 0;
  color: var(--bbfs-white);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 0 #000000;
  box-shadow: 0 -5px 18px rgba(230, 0, 0, 0.18);
}

.bbfs-textarea {
  display: block;
  width: 100%;
  min-height: 136px;
  padding: 10px 9px;
  resize: vertical;
  color: var(--bbfs-text);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.42;
  scrollbar-color: var(--bbfs-red) #191919;
  box-shadow:
    var(--bbfs-shadow-soft),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 0 30px rgba(0, 0, 0, 0.22);
}

.bbfs-textarea-short,
.bbfs-textarea-long {
  min-height: 136px;
}

.bbfs-textarea-long {
  margin-top: 2px;
}

.bbfs-grid-four {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 236px));
  justify-content: center;
  gap: 8px;
  width: min(980px, 100%);
  margin-top: 8px;
}

.bbfs-field {
  min-width: 0;
}

.bbfs-info {
  min-height: 25px;
  margin: 9px 0 3px;
  color: var(--bbfs-white);
  font-size: 20px;
  font-style: italic;
  font-weight: 800;
  line-height: 1.18;
  text-align: center;
  text-shadow:
    1px 1px 0 var(--bbfs-red-dark),
    0 0 12px rgba(230, 0, 0, 0.24);
}

.bbfs-is-error {
  color: #ffd1d1;
  text-shadow:
    1px 1px 0 #750000,
    0 0 12px rgba(230, 0, 0, 0.42);
}

.bbfs-is-ok {
  color: var(--bbfs-white);
}

@media (min-width: 1201px) {
  .bbfs-page {
    width: min(var(--bbfs-page-max), calc(100% - 96px));
  }

  .bbfs-textarea {
    min-height: 140px;
  }
}

@media (max-width: 1200px) {
  .bbfs-page {
    width: min(100% - 34px, var(--bbfs-page-max));
    padding-top: 26px;
  }

  .bbfs-grid-four {
    grid-template-columns: repeat(4, minmax(120px, 1fr));
    width: min(900px, 100%);
  }
}

@media (max-width: 900px) {
  .bbfs-page {
    width: min(100% - 28px, var(--bbfs-page-max));
    padding-top: 22px;
  }

  .bbfs-section-top {
    margin-bottom: 62px;
  }

  .bbfs-title {
    font-size: clamp(28px, 5vw, 38px);
  }

  .bbfs-grid-four {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
    width: min(620px, 100%);
  }

  .bbfs-textarea {
    padding: 9px 8px;
  }
}

@media (max-width: 640px) {
  body {
    background:
      radial-gradient(circle at 50% 0%, rgba(230, 0, 0, 0.18) 0, transparent 52%),
      var(--bbfs-bg);
  }

  .bbfs-page {
    width: min(100% - 18px, var(--bbfs-page-max));
    padding-top: 18px;
  }

  .bbfs-section-top {
    margin-bottom: 56px;
  }

  .bbfs-title {
    margin-bottom: 12px;
    font-size: clamp(25px, 8vw, 34px);
    line-height: 1.12;
  }

  .bbfs-title::after {
    width: min(190px, 76vw);
    margin-top: 8px;
  }

  .bbfs-form-small,
  .bbfs-input-main {
    width: 100%;
  }

  .bbfs-input {
    min-height: 42px;
    padding-inline: 10px;
    font-size: 18px;
  }

  .bbfs-select {
    min-width: 54px;
    height: 37px;
    font-size: 16px;
  }

  .bbfs-btn {
    min-height: 39px;
    padding: 8px 11px;
    font-size: 16px;
  }

  .bbfs-grid-four {
    grid-template-columns: 1fr 1fr;
    gap: 7px;
  }

  .bbfs-control-row-bottom {
    width: 100%;
    gap: 7px;
  }

  .bbfs-control-row-bottom .bbfs-btn {
    flex: 1 1 auto;
  }

  .bbfs-info {
    width: 100%;
    font-size: 16px;
    overflow-wrap: anywhere;
  }

  .bbfs-output-wrap {
    margin-top: 58px;
  }

  .bbfs-output-tab {
    width: min(360px, 94%);
    min-height: 36px;
    padding-inline: 10px;
    font-size: 15px;
  }

  .bbfs-textarea {
    min-height: 132px;
    font-size: 15px;
  }
}

@media (max-width: 420px) {
  .bbfs-page {
    width: min(100% - 14px, var(--bbfs-page-max));
    padding-top: 16px;
  }

  .bbfs-title {
    font-size: clamp(24px, 9vw, 31px);
  }

  .bbfs-control-row,
  .bbfs-action-row {
    gap: 6px;
  }

  .bbfs-action-row {
    width: 100%;
  }

  .bbfs-action-row .bbfs-btn {
    flex: 1 1 0;
    min-width: 0;
  }

  .bbfs-grid-four {
    grid-template-columns: 1fr;
  }

  .bbfs-btn-hide-mobile {
    display: none;
  }

  .bbfs-output-tab {
    width: min(310px, 96%);
    font-size: 14px;
  }

  .bbfs-textarea {
    min-height: 128px;
    padding: 8px 7px;
  }
}