/* ── Custom Properties ─────────────────────────────────── */
:root {
  --color-primary:     #3A65B1;
  --color-primary-dark:#2a4f96;
  --color-accent:      #FFD166;
  --color-text:        #3C3E43;
  --color-text-light:  #6b7280;
  --color-bg:          #F7F7F7;
  --color-white:       #ffffff;
  --color-border:      #d1d5db;
  --color-budget-bg:   #e8f5e9;
  --color-budget-text: #2e7d32;
  --color-budget-border:#a5d6a7;
  --color-gk-bg:       #e3f0ff;
  --color-gk-text:     #1a4fa0;
  --color-error:       #dc2626;

  --radius:     10px;
  --radius-sm:  6px;
  --shadow:     0 2px 12px rgba(0,0,0,.08);
  --shadow-card:0 1px 4px rgba(0,0,0,.06);

  --font-base:  'Segoe UI', system-ui, sans-serif;
  --font-title: 'Ermilov', 'Segoe UI', sans-serif;

  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Base ──────────────────────────────────────────────── */
body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

@font-face {
  font-family: 'Ermilov';
  src: url('../assets/Ermilov-Bold.woff2') format('woff2');
  font-weight: bold;
  font-display: swap;
}

/* ── Layout ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ── Header ────────────────────────────────────────────── */
.site-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) 0;
  border-bottom: 4px solid var(--color-accent);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-header__logo {
  height: 18px;
  width: auto;
  flex-shrink: 0;
}

.site-header__title {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: bold;
  color: var(--color-white);
  flex: 1;
  line-height: 1.2;
}

.site-header__version {
  font-size: 0.7rem;
  color: rgba(255,255,255,.6);
  letter-spacing: .03em;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .site-header__title { font-size: 1.2rem; }
  .site-header__logo  { height: 20px; }
}

/* ── Main ──────────────────────────────────────────────── */
main {
  padding: var(--space-lg) 0 var(--space-xl);
}

/* ── Card ──────────────────────────────────────────────── */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.card__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.card__title-step {
  background: var(--color-primary);
  color: var(--color-white);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ── Score Input ───────────────────────────────────────── */
.score-field {
  margin-bottom: var(--space-md);
}

.score-field__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.score-field__label span {
  font-weight: 400;
  color: var(--color-text-light);
  font-size: 0.8rem;
}

.score-field__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: border-color .2s;
  appearance: none;
}

.score-field__input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.score-field__select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-white);
  cursor: pointer;
  transition: border-color .2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.score-field__select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ── Elective Radio Grid ───────────────────────────────── */
.elective-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.elective-option {
  position: relative;
}

.elective-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.elective-option__label {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
  min-height: 48px;
  line-height: 1.2;
}

.elective-option input[type="radio"]:checked + .elective-option__label {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

/* ── Toggle ────────────────────────────────────────────── */
.toggle-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.toggle-row__label {
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle__track {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: 24px;
  transition: background .2s;
  cursor: pointer;
}

.toggle__track::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  background: var(--color-white);
  border-radius: 50%;
  transition: transform .2s;
}

.toggle input:checked + .toggle__track {
  background: var(--color-primary);
}

.toggle input:checked + .toggle__track::after {
  transform: translateX(20px);
}

/* ── ОУ Radio ──────────────────────────────────────────── */
.ou-options {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.ou-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.ou-option {
  position: relative;
}

.ou-option__label {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}

.ou-option input[type="radio"]:checked + .ou-option__label {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

/* ── Submit Button ─────────────────────────────────────── */
.btn-calculate {
  width: 100%;
  padding: var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background .2s, transform .1s;
  letter-spacing: .02em;
}

.btn-calculate:hover  { background: var(--color-primary-dark); }
.btn-calculate:active { transform: scale(.98); }

/* ── Animations ────────────────────────────────────────── */
@keyframes fadeOutIn {
  0%   { opacity: 1; }
  50%  { opacity: 0; }
  100% { opacity: 1; }
}

.fade-out-in {
  animation: fadeOutIn 0.4s ease-in-out;
}

/* ── Results Section ───────────────────────────────────── */
.results-section__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.results-section__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.results-section__title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--color-primary);
}

.filter-btn {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
  background: none;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.filter-btn:hover {
  background: rgba(58, 101, 177, 0.05);
  box-shadow: 0 2px 8px rgba(58, 101, 177, 0.15);
}

.filter-btn:active {
  transform: scale(0.98);
}

.filter-btn--active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(58, 101, 177, 0.25);
}

.filter-btn--active:hover {
  background: #2d4fa0;
  box-shadow: 0 4px 16px rgba(58, 101, 177, 0.35);
}

.results-section__hint {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* ── Result Card ───────────────────────────────────────── */
.result-card {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  display: grid;
  grid-template-columns: 28px 1fr auto;
  grid-template-rows: auto auto auto auto;
  align-items: start;
  gap: 0 var(--space-sm);
  border-left: 4px solid transparent;
  transition: border-color .2s;
}

.result-card--budget {
  border-left-color: var(--color-budget-text);
  background: var(--color-budget-bg);
}

.result-card__rank {
  grid-column: 1;
  grid-row: 1 / 3;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-light);
  text-align: center;
  padding-top: 2px;
}

.result-card__name {
  grid-column: 2;
  grid-row: 1;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.result-card__score {
  grid-column: 3;
  grid-row: 1 / 3;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--color-primary);
  text-align: right;
  white-space: nowrap;
}

.result-card--budget .result-card__score {
  color: var(--color-budget-text);
}

.result-card__score--na {
  color: var(--color-text-light);
  font-size: 1.25rem;
}

.result-card__name-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color .2s, text-decoration-color .2s;
}

.result-card__name-link:hover {
  color: var(--color-primary);
  text-decoration-color: var(--color-primary);
}

.result-card__tuition {
  grid-column: 2 / 4;
  grid-row: 3;
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

.result-card__badges {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-top: var(--space-xs);
}

/* ── Badges ────────────────────────────────────────────── */
.badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: .02em;
}

.badge--budget {
  background: var(--color-budget-text);
  color: var(--color-white);
}

.badge--gk {
  background: var(--color-gk-bg);
  color: var(--color-gk-text);
  border: 1px solid var(--color-gk-text);
}

.badge--support {
  background: #fff8e1;
  color: #e65100;
  border: 1px solid #ffb74d;
}

.badge--button {
  background: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.badge--button:hover {
  background: none;
  color: var(--color-primary);
}

.badge--button:active {
  opacity: 0.8;
}

/* ── Result Card Details/Spoiler ───────────────────────── */
.result-card__details {
  grid-column: 1 / -1;
  grid-row: 4;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.result-card--budget .result-card__details {
  border-top-color: var(--color-budget-border);
}

.result-card__summary {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.result-card__summary::before {
  content: '▶';
  font-size: 0.6rem;
  transition: transform .2s;
  display: inline-block;
}

.result-card__details[open] .result-card__summary::before {
  transform: rotate(90deg);
}

.result-card__summary::-webkit-details-marker { display: none; }

/* ── Result Card Parts ─────────────────────────────────── */
.result-card__parts {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.result-card__part {
  font-size: 0.8rem;
}

.result-card__part-title {
  font-weight: 600;
  color: var(--color-text);
}

.result-card__part-value {
  color: var(--color-primary);
  margin-top: 1px;
}

/* ── Utility ───────────────────────────────────────────── */
.hidden { display: none !important; }

.results__empty,
.results__error {
  text-align: center;
  padding: var(--space-xl) 0;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.results__error { color: var(--color-error); }

.elective-warning {
  color: var(--color-error);
  font-size: 0.85rem;
  margin: var(--space-xs) 0 0;
  animation: fadeIn .2s ease;
}

/* ── Telegram FAB ──────────────────────────────────────── */
@keyframes tg-pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 16px rgba(0,0,0,.25), 0 0 0 0 rgba(40,168,234,.4);
  }
  50% {
    transform: scale(1.08);
    box-shadow: 0 4px 16px rgba(0,0,0,.25), 0 0 0 25px rgba(40,168,234,0);
  }
}

.tg-fab {
  position: fixed;
  bottom: 32px;
  right: 40px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .2s, box-shadow .2s;
  z-index: 999;
  animation: tg-pulse 3s ease-in-out infinite;
}

.tg-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0,0,0,.32);
  animation: none;
}

.tg-fab[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(30,30,30,.85);
  color: #fff;
  font-size: 0.8rem;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s;
}

.tg-fab[data-tooltip]:hover::before {
  opacity: 1;
}

.tg-fab svg {
  width: 72px;
  height: 72px;
  border-radius: 50%;
}

/* ── Specialty modal ───────────────────────────────────── */
.spec-modal {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(480px, 92vw);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.18);
  z-index: 900;
  opacity: 0;
  transition: opacity .25s, transform .25s;
  pointer-events: none;
}

.spec-modal.visible {
  opacity: 1;
  pointer-events: auto;
}

.spec-modal.hidden {
  display: none;
}

.spec-modal__inner {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.spec-modal__header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-md);
  align-items: flex-start;
}

.spec-modal__close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-border);
  border: none;
  border-radius: 50%;
  color: var(--color-text);
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s, color .2s;
  padding: 0;
  flex-shrink: 0;
}

.spec-modal__close:hover {
  background: var(--color-error);
  color: var(--color-white);
}

.spec-modal__close:active {
  transform: scale(0.95);
}

.spec-modal__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  word-break: break-word;
}

.spec-modal__tagline {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-light);
  font-style: italic;
  margin: 0;
}

.spec-modal__about {
  font-size: 0.88rem;
  color: var(--color-text);
  line-height: 1.55;
  margin: 0;
}

.spec-modal__section-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-xs);
}

.spec-modal__careers {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-modal__careers li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding: 4px 0;
  border-bottom: 1px dashed var(--color-border);
}

.spec-modal__salary {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  margin-left: var(--space-sm);
}

.spec-modal__quote {
  background: var(--color-bg);
  border-left: 3px solid var(--color-primary);
  margin: var(--space-xs) 0 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 6px 6px 0;
}

.spec-modal__quote p {
  font-size: 0.83rem;
  font-style: italic;
  color: var(--color-text);
  margin: 0 0 4px;
}

.spec-modal__quote cite {
  font-size: 0.78rem;
  color: var(--color-text-light);
  font-style: normal;
}

.spec-modal__link {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s, transform .1s;
  cursor: pointer;
}

.spec-modal__link:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.spec-modal__link:active {
  transform: translateY(0);
}

/* ── Footer ────────────────────────────────────────────── */
.site-footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.site-footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.site-footer__left {
  flex: 1;
}

.site-footer__right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.site-footer__socials {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.site-footer__social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-bg);
  color: var(--color-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background .2s, color .2s, transform .1s;
  text-decoration: none;
}

.site-footer__social-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.site-footer__social-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.site-footer__social-btn:active {
  transform: translateY(0);
}

@media (min-width: 768px) {
  .site-footer__content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .site-footer__left {
    text-align: left;
  }

  .site-footer__right {
    flex-direction: row;
    gap: var(--space-md);
    align-items: center;
  }
}

/* ── Desktop ───────────────────────────────────────────── */
@media (min-width: 768px) {
  .elective-grid { grid-template-columns: repeat(3, 1fr); }

  .result-card { padding: var(--space-md) var(--space-lg); }
  .result-card__name { font-size: 1rem; }
  .result-card__score { font-size: 1.75rem; }

  .site-header__title { font-size: 1.2rem; }
}