@import url('https://fonts.googleapis.com/css2?family=Raleway:ital,wght@0,300;0,500;0,600;0,700;1,700&display=swap');

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Raleway', sans-serif;
  font-weight: 500;
  font-size: 16px;
  color: #2d3748;
  background: #fff;
  line-height: 1.65;
}
a { color: #3d8ee8; text-decoration: none; }
a:hover { color: #2271c9; }
img { max-width: 100%; }
ul { list-style: none; }
p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ── VARS ── */
:root {
  --blue:      #3d8ee8;
  --blue-dark: #2271c9;
  --blue-light:#e8f2fd;
  --gray-bg:   #f5f7fb;
  --gray-line: #e2e8f0;
  --text:      #2d3748;
  --text-dim:  #64748b;
  --white:     #ffffff;
  --radius:    8px;
  --shadow:    0 2px 16px rgba(61,142,232,.12);
}

/* ── CONTAINER ── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 800px; }

/* ── TYPOGRAPHY ── */
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; line-height: 1.2; color: var(--text); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; line-height: 1.25; color: var(--text); }
h3 { font-size: 1.15rem; font-weight: 600; color: var(--text); }
h4 { font-size: 1rem; font-weight: 600; color: var(--text); }
.h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; line-height: 1.2; }
.h2 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 700; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px;
  font-family: 'Raleway', sans-serif;
  font-size: .95rem; font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer; transition: all .2s;
  text-decoration: none; white-space: nowrap;
}
.btn--full-width { width: 100%; }
.btn-primary {
  background: var(--blue); color: #fff;
  border-color: var(--blue);
}
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.btn-secondary {
  background: transparent; color: var(--blue);
  border-color: var(--blue);
}
.btn-secondary:hover { background: var(--blue-light); color: var(--blue-dark); }
.btn.loading { opacity: .6; pointer-events: none; }
.btn .spinner {
  display: none; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.btn-secondary .spinner { border-color: rgba(61,142,232,.3); border-top-color: var(--blue); }
.btn.loading .spinner { display: block; }
.btn.loading .btn-text { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── ACTIONS GROUP ── */
.b-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.b-actions .btn { flex: 1; min-width: 200px; }

/* ── HEADER ── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--gray-line);
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}
.b-header__inner {
  display: flex; align-items: center; gap: 24px;
  height: 68px;
}
.c-logo {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; flex-shrink: 0;
}
.c-logo img { height: 32px; width: auto; }
.c-logo__name { font-size: 1.2rem; font-weight: 700; color: var(--text); }
.c-logo__description { font-size: .8rem; font-weight: 500; color: var(--blue); margin-top: 2px; }

.main-menu { display: flex; gap: 4px; align-items: center; }
.main-menu a {
  padding: 6px 14px;
  font-size: .9rem; font-weight: 600;
  color: var(--text-dim);
  border-radius: 6px;
  transition: background .15s, color .15s;
}
.main-menu a:hover, .main-menu a.active { background: var(--blue-light); color: var(--blue); }

.b-header__actions { display: flex; gap: 10px; margin-left: auto; }
.b-header__actions .btn { padding: 8px 20px; font-size: .88rem; }

/* hamburger */
.b-header__mobile-menu-toggle { display: none; cursor: pointer; }
.hamburger-bar {
  display: block; width: 24px; position: relative;
  height: 18px;
}
.hamburger-bar::before, .hamburger-bar::after,
.hamburger-bar span {
  display: block; height: 2px; background: var(--text);
  border-radius: 2px; transition: .3s;
  position: absolute; left: 0; right: 0;
}
.hamburger-bar::before { content: ''; top: 0; }
.hamburger-bar span { top: 50%; transform: translateY(-50%); }
.hamburger-bar::after { content: ''; bottom: 0; }

/* ── SECTIONS ── */
.b-section { padding: 64px 0; }
.b-section__title { margin-bottom: 32px; }

/* ── HERO ── */
.b-hero {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
  padding: 64px 0;
}
.b-hero h1 span { color: var(--blue); }
.b-hero > .b-hero__main p { font-size: 1.1rem; color: var(--text-dim); margin: 16px 0 28px; }
.b-hero__actions { margin-top: 0; }

/* hero visual */
.b-hero__aside { display: flex; justify-content: flex-end; }
.hero-visual {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: 16px;
  padding: 24px;
  width: 100%; max-width: 420px;
}
.hero-visual__title { font-size: .8rem; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.search-card {
  background: #fff;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.search-card__body { display: flex; gap: 12px; padding: 16px; align-items: flex-start; }
.search-card__avatar {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--blue-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.search-card__title { font-weight: 700; font-size: .9rem; color: var(--text); margin-bottom: 8px; }
.search-card__results { list-style: none; font-size: .82rem; color: var(--text-dim); display: flex; flex-direction: column; gap: 3px; }
.search-card__results li strong { color: var(--text); }
.search-card__alert {
  padding: 8px 16px;
  font-size: .82rem; font-weight: 600;
  border-top: 1px solid var(--gray-line);
}
.search-card__alert--info { background: var(--blue-light); color: var(--blue); }
.search-card__alert--success { background: #ecfdf5; color: #059669; }

/* ── SEARCH TYPES ── */
.search-types-list {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 20px; margin-bottom: 32px;
}
.search-type {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow .2s, border-color .2s;
}
.search-type:hover { box-shadow: var(--shadow); border-color: #c5d9f5; }
.search-type__header { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.search-type__header .c-icon img { width: 40px; height: 40px; }
.search-type__header h3 { font-size: 1rem; font-weight: 600; }
.b-content ul { padding-left: 16px; list-style: disc; color: var(--text-dim); font-size: .9rem; }
.b-content li { margin-bottom: 4px; }

/* ── DEMO FORM ── */
.form-demo-search {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 28px;
}
.form-demo-search__row {
  display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap;
}
.form__field-label { font-size: .82rem; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; display: block; }
.form__field-input {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--gray-line);
  border-radius: 6px;
  font-family: 'Raleway', sans-serif;
  font-size: .92rem; font-weight: 500;
  color: var(--text);
  background: #fff;
  transition: border-color .2s;
  appearance: none;
}
.form__field-input:focus { outline: none; border-color: var(--blue); }
.form__field--select { flex: 0 0 220px; }
.form__field--text { flex: 1; min-width: 200px; }
.form-demo-search__row .btn { flex-shrink: 0; white-space: nowrap; align-self: flex-end; }
.form__group--footer { margin-top: 12px; }
.form__group--footer p { font-size: .8rem; color: var(--text-dim); }

/* custom select */
.select-custom { position: relative; }
.select-custom select {
  width: 100%; padding: 10px 36px 10px 14px;
  border: 1.5px solid var(--gray-line); border-radius: 6px;
  font-family: 'Raleway', sans-serif; font-size: .92rem; font-weight: 500;
  background: #fff 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='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;
  appearance: none; cursor: pointer;
}
.select-custom select:focus { outline: none; border-color: var(--blue); }

/* ── REPORT TEASER ── */
.report-teaser { background: var(--blue); border-radius: 16px; overflow: hidden; }
.report-teaser__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; padding: 48px; }
.report-teaser__main h2 { color: #fff; margin-bottom: 12px; }
.report-teaser__main p { color: rgba(255,255,255,.8); margin-bottom: 24px; }
.report-teaser__main .btn { background: #fff; color: var(--blue); border-color: #fff; }
.report-teaser__main .btn:hover { background: var(--blue-light); }
.report-teaser__aside .search-card { border: none; }

/* ── FEATURES ── */
.features-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 32px; }
.feature-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--gray-bg); border: 1px solid var(--gray-line);
  border-radius: var(--radius); padding: 20px;
}
.feature-item .c-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--blue-light); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.feature-item p { font-size: .9rem; color: var(--text-dim); margin: 0; }
.feature-extra { background: var(--gray-bg); border: 1px solid var(--gray-line); border-radius: var(--radius); padding: 28px; }
.feature-extra h3 { margin-bottom: 12px; }
.feature-extra ul { padding-left: 16px; list-style: disc; color: var(--text-dim); font-size: .9rem; }
.feature-extra li { margin-bottom: 6px; }
.feature-extra .b-actions { margin-top: 20px; }

/* ── TARIFFS ── */
.tariffs-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 0; }
.tariff-card {
  background: var(--gray-bg); border: 1px solid var(--gray-line);
  border-radius: var(--radius); padding: 28px;
  position: relative; display: flex; flex-direction: column; gap: 20px;
}
.tariff-card--primary { background: #fff; border-color: var(--blue); box-shadow: var(--shadow); }
.tariff-card__sticker {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-light); color: var(--blue);
  font-size: .78rem; font-weight: 700;
  padding: 4px 12px; border-radius: 100px;
  letter-spacing: .04em;
}
.tariff-card--primary .tariff-card__sticker { background: #fef3c7; color: #d97706; }
.tariff-card__title { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.tariff-card__features { list-style: none; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.tariff-card__features li {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 8px;
  font-size: .88rem; color: var(--text-dim);
  padding-bottom: 10px; border-bottom: 1px solid var(--gray-line);
}
.tariff-card__features li:last-child { border-bottom: none; padding-bottom: 0; }
.tariff-card__features li span { font-weight: 700; color: var(--text); white-space: nowrap; flex-shrink: 0; }
.tariff-card__features li.feature-good { color: var(--text); font-weight: 500; }
.tariff-card__features li.feature-good::before { content: '✓'; color: #059669; flex-shrink: 0; margin-right: 2px; }

/* ── API ── */
.b-api { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.b-api__main ul { padding-left: 16px; list-style: disc; color: var(--text-dim); margin: 16px 0 28px; }
.b-api__main li { margin-bottom: 6px; }
.b-api__aside img { width: 100%; max-width: 420px; }

/* ── FOOTER ── */
.site-footer { background: var(--gray-bg); border-top: 1px solid var(--gray-line); padding: 48px 0 24px; }
.b-footer { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.b-footer__primary .c-logo { margin-bottom: 12px; }
.b-footer__primary p { font-size: .85rem; color: var(--text-dim); }
.footer-title { font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 12px; }
.footer-menu ul { display: flex; flex-direction: column; gap: 8px; }
.footer-menu a { font-size: .88rem; color: var(--text-dim); }
.footer-menu a:hover { color: var(--blue); }
.footer-copyright { border-top: 1px solid var(--gray-line); padding-top: 20px; }
.footer-copyright p { font-size: .8rem; color: var(--text-dim); margin-bottom: 4px; }
.footer-copyright a { color: var(--text-dim); }
.footer-copyright a:hover { color: var(--blue); }

/* ── MODAL ── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 1000;
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: #fff; border-radius: 12px;
  padding: 32px; width: 100%; max-width: 440px;
  position: relative; box-shadow: 0 20px 60px rgba(0,0,0,.2);
  animation: modalIn .2s ease;
}
@keyframes modalIn { from { opacity:0; transform: translateY(-12px); } }
.modal-box__close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; cursor: pointer;
  font-size: 1.4rem; color: var(--text-dim); line-height: 1;
}
.modal-box__close:hover { color: var(--text); }
.modal-box h2 { margin-bottom: 12px; font-size: 1.4rem; }
.modal-box p { color: var(--text-dim); margin-bottom: 20px; }
.modal-box .b-actions { flex-direction: column; }
.modal-box .b-actions .btn { min-width: 0; }
.modal-query { font-family: monospace; background: var(--gray-bg); border-radius: 6px; padding: 8px 12px; font-size: .85rem; color: var(--blue); margin-bottom: 16px; }

/* ── ARTICLE PAGE ── */
.page-hero { background: var(--gray-bg); border-bottom: 1px solid var(--gray-line); padding: 48px 0 36px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: .8rem; color: var(--text-dim); margin-bottom: 16px; }
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb__sep { opacity: .4; }
.article-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: .82rem; color: var(--text-dim); margin-top: 12px; }
.article-body { padding: 48px 0; }
.article-body h2 { margin: 2rem 0 .8rem; }
.article-body h3 { margin: 1.5rem 0 .6rem; color: var(--blue); }
.article-body p { color: var(--text-dim); }
.article-body ul, .article-body ol { padding-left: 1.4rem; color: var(--text-dim); margin-bottom: 1.2em; }
.article-body li { margin-bottom: .4rem; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body blockquote { border-left: 3px solid var(--blue); padding: .8rem 1.2rem; background: var(--blue-light); border-radius: 0 6px 6px 0; margin: 1.5rem 0; font-style: italic; color: var(--text); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: .9rem; }
.article-body th { background: var(--gray-bg); padding: .7rem 1rem; text-align: left; font-weight: 600; border-bottom: 2px solid var(--gray-line); }
.article-body td { padding: .7rem 1rem; border-bottom: 1px solid var(--gray-line); color: var(--text-dim); }
.inline-cta { background: var(--blue-light); border: 1px solid #c5d9f5; border-radius: var(--radius); padding: 24px; margin: 2rem 0; text-align: center; }
.inline-cta p { color: var(--text-dim); margin-bottom: 16px; }

/* ── ARTICLES LIST ── */
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  background: var(--gray-bg); border: 1px solid var(--gray-line);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow .2s, border-color .2s;
  text-decoration: none; color: inherit;
}
.article-card:hover { box-shadow: var(--shadow); border-color: #c5d9f5; }
.article-card__icon { padding: 32px; font-size: 2.5rem; text-align: center; background: var(--blue-light); }
.article-card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.article-card__tag { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); margin-bottom: 8px; }
.article-card__title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; line-height: 1.4; }
.article-card__excerpt { font-size: .85rem; color: var(--text-dim); flex: 1; }
.article-card__meta { margin-top: 12px; font-size: .78rem; color: var(--text-dim); }

/* ── SCROLL TO TOP ── */
.scroll-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 50;
  width: 40px; height: 40px;
  background: var(--blue); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .3s;
  font-size: 1.2rem;
}
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { background: var(--blue-dark); color: #fff; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .b-hero { grid-template-columns: 1fr; }
  .b-hero__aside { display: none; }
  .search-types-list { grid-template-columns: 1fr; }
  .tariffs-list { grid-template-columns: 1fr; }
  .b-api { grid-template-columns: 1fr; }
  .b-api__aside { display: none; }
  .report-teaser__inner { grid-template-columns: 1fr; }
  .report-teaser__aside { display: none; }
  .b-footer { grid-template-columns: 1fr; gap: 24px; }
  .articles-grid { grid-template-columns: 1fr; }
  .features-list { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .b-header__menu { display: none; }
  .b-header__actions { display: none; }
  .b-header__mobile-menu-toggle { display: block; margin-left: auto; }
  .main-menu.open { 
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--gray-line);
    padding: 12px 24px; z-index: 99;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
  }
  .main-menu.open ~ .b-header__actions { 
    display: flex; flex-direction: column; padding: 0 24px 12px; 
    position: absolute; top: auto; left: 0; right: 0;
    background: #fff; z-index: 99;
  }
  .form-demo-search__row { flex-direction: column; }
  .form__field--select { flex: 0 0 auto; width: 100%; }
  .b-actions { flex-direction: column; }
}