:root {
  --bg: #f4f8fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #5b6b81;
  --border: #d5e1ec;
  --accent: #0b63c9;
  --accent-dark: #084f9f;
  --danger: #dc3545;
  --success: #1f9d55;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Geologica", sans-serif;
  color: var(--text);
  font-size: 16px;
  background: radial-gradient(circle at 0% 0%, #d9ecfb 0%, #f4f8fb 45%, #eef4f8 100%);
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.logo {
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.2px;
  color: #101827;
}

.logo span {
  color: var(--accent);
}

.header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.header-nav a {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  color: #24405e;
  font-size: 14px;
  font-weight: 500;
}

.header-nav a.active,
.header-nav a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  text-decoration: none;
}

.language {
  position: relative;
}

.language .current {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 8px 10px;
  font-size: 14px;
  cursor: pointer;
}

.language .dropdown {
  list-style: none;
  margin: 0;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  display: none;
  min-width: 130px;
}

.language.open .dropdown {
  display: block;
}

.language .dropdown a {
  display: block;
  padding: 6px 8px;
  color: #24405e;
  border-radius: 6px;
}

.language .dropdown a:hover {
  background: #edf6ff;
  text-decoration: none;
}

.page-main {
  padding: 32px 0 44px;
}

.hero {
  text-align: center;
  margin-bottom: 30px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.1;
}

.hero p {
  margin: 14px auto 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 15px;
}

.input-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 8px 24px rgba(10, 45, 80, 0.06);
}

.download-form {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
}

.download-form input {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fbfdff;
  min-height: 48px;
  padding: 0 14px;
  font-size: 15px;
}

.download-form input:focus {
  outline: none;
  border-color: #7db5ea;
  box-shadow: 0 0 0 3px rgba(11, 99, 201, 0.2);
}

.btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  min-height: 48px;
  padding: 0 14px;
  font-weight: 600;
  cursor: pointer;
}

.btn-icon {
  width: 48px;
  min-width: 48px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon span[hidden] {
  display: none !important;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.btn-icon-clear {
  display: none;
}

.btn-icon.is-clear .btn-icon-paste {
  display: none;
}

.btn-icon.is-clear .btn-icon-clear {
  display: inline-flex;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-ghost {
  background: #fff;
  color: #33475f;
}

.loading {
  margin: 18px 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
}

.loading-bar {
  margin-top: 10px;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: #eaf2f9;
  overflow: hidden;
}

.loading-bar span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #7db5ea, var(--accent));
  transition: width 0.2s ease;
}

.error-message {
  margin: 18px 0;
  border: 1px solid #f3c6cb;
  background: #fff5f6;
  color: var(--danger);
  border-radius: 12px;
  padding: 12px;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.75);
  margin-top: 24px;
}

.footer-inner {
  padding: 18px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-links a {
  color: #3d5978;
  font-size: 14px;
}

.footer-links a.active,
.footer-links a:hover {
  color: var(--accent-dark);
}

.static-page {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
}

.static-page h1 {
  margin-top: 0;
}

.static-page h2 {
  margin: 18px 0 10px;
}

.static-page .updated {
  color: var(--muted);
  font-size: 14px;
}

.policy-list {
  margin: 0;
  padding-left: 20px;
}

.contact-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: #fcfeff;
}

.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  display: grid;
  gap: 6px;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-alert {
  border-radius: 10px;
  padding: 10px 12px;
  margin-top: 12px;
}

.contact-alert.success {
  border: 1px solid #badfc8;
  background: #effaf3;
  color: #1f7c45;
}

.contact-alert.error {
  border: 1px solid #f2c6cc;
  background: #fff5f6;
  color: #be2232;
}

.notfound-card {
  background: linear-gradient(180deg, #ffffff 0%, #f6fbff 100%);
  border: 1px solid #cddfee;
  border-radius: 20px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 14px 30px rgba(8, 35, 66, 0.08);
}

.notfound-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 700;
  color: #486987;
}

.notfound-code {
  margin: 4px 0 2px;
  font-size: clamp(52px, 12vw, 124px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.notfound-card h1 {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 40px);
}

.notfound-lead {
  margin: 12px auto 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 17px;
}

.notfound-actions {
  margin-top: 18px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.notfound-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 190px;
  text-decoration: none;
}

.notfound-links {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.notfound-links a {
  border: 1px solid #d5e1ec;
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
  color: #294a69;
  font-weight: 500;
  text-decoration: none;
}

.notfound-links a:hover {
  border-color: #9fc2e4;
  background: #f2f8ff;
}

.notfound-path-label {
  margin: 18px 0 8px;
  color: #486987;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.notfound-path {
  display: inline-block;
  max-width: 100%;
  padding: 8px 12px;
  border-radius: 10px;
  background: #eaf2fb;
  border: 1px solid #d0e0ef;
  color: #2d4e6d;
  font-size: 13px;
  overflow-wrap: anywhere;
}

@media (max-width: 920px) {
  .header-inner {
    flex-wrap: wrap;
    min-height: auto;
    padding: 20px 0;
  }

  .download-form {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .download-form .btn-primary {
    grid-column: 1 / -1;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .notfound-card {
    padding: 22px 16px;
    border-radius: 16px;
  }

  .notfound-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .site-header {
    position: static;
    top: auto;
  }

  .logo {
    order: 1;
  }

  .language {
    order: 2;
    margin-inline-start: auto;
  }

  .header-nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }
}