/* ========== CSS переменные ========== */
:root {
  --main-gradient: linear-gradient(135deg, #6cd0d4 0%, #3a8edb 100%);
  --accent-gradient: linear-gradient(135deg, #47e0b4 0%, #50bcd9 100%);
  --bg-light: #f6fafb;
  --text-color: #153F53;
  --menu-button-bg: rgba(255, 255, 255, 0.10);
  --menu-button-active-bg: rgba(255, 255, 255, 0.22);
  --menu-button-shadow: 0 2px 7px 0 rgba(60, 180, 190, 0.08);
  --menu-button-radius: 1.8em;
  --menu-button-padding-h: 1.5em;
  --menu-button-padding-v: 0.7em;
  --header-max-width: 940px;
  --border-radius: 1.5rem;
}

/* ========== Глобальные стили ========== */
* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body {
  flex: 1;
}

/* ========== Шапка и меню ========== */
.header-bar {
  width: 100%;
  display: flex;
  justify-content: center;
}

.header {
  background: var(--main-gradient);
  border-bottom-left-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
  box-shadow: 0 2px 10px 0 #e7f7ff7e;
  min-height: 60px;
  width: 100%;
  max-width: var(--header-max-width);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
}

.menu {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  white-space: nowrap;
}

.menu a {
  padding: var(--menu-button-padding-v) var(--menu-button-padding-h);
  background: var(--menu-button-bg);
  border-radius: var(--menu-button-radius);
  font-weight: 600;
  font-size: 1.1em;
  color: #fff;
  text-decoration: none;
  border: none;
  outline: none;
  box-shadow: var(--menu-button-shadow);
  letter-spacing: normal;
  transition: background 0.22s, color 0.14s, box-shadow 0.19s, transform 0.11s;
  cursor: pointer;
  position: relative;
  top: 0;
}

.menu a.active,
.menu a:focus,
.menu a:hover {
  background: var(--menu-button-active-bg);
  color: #1f7d96;
  text-decoration: none;
  box-shadow: 0 4px 16px 0 rgba(50, 180, 160, 0.14);
  transform: translateY(-1.5px) scale(1.045);
}

.menu a.active {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 2px 32px 0 rgba(55, 210, 210, 0.13);
  border-bottom: 2.5px solid #31e8be;
}

.menu a:focus {
  outline: 2px solid #c3eef9;
}

/* Стили для формы выхода */
.logout-form {
  display: inline;
  margin: 0;
  padding: 0;
}

.logout-button {
  padding: var(--menu-button-padding-v) var(--menu-button-padding-h);
  background: var(--menu-button-bg);
  border-radius: var(--menu-button-radius);
  font-weight: 600;
  font-size: 1.1em;
  color: #fff;
  text-decoration: none;
  border: none;
  outline: none;
  box-shadow: var(--menu-button-shadow);
  letter-spacing: normal;
  transition: background 0.22s, color 0.14s, box-shadow 0.19s, transform 0.11s;
  cursor: pointer;
  position: relative;
  top: 0;
  font-family: inherit;
}

.logout-button:hover,
.logout-button:focus {
  background: var(--menu-button-active-bg);
  color: #1f7d96;
  text-decoration: none;
  box-shadow: 0 4px 16px 0 rgba(50, 180, 160, 0.14);
  transform: translateY(-1.5px) scale(1.045);
  outline: none;
}

.logout-button:active {
  transform: translateY(0) scale(1);
}

/* ========== Основной контент ========== */
main {
  padding: 2.5rem 1rem 2rem 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.hero {
  text-align: center;
  padding: 2rem 0 2.5rem 0;
}

.hero h1 {
  letter-spacing: 1px;
  font-size: 2.2rem;
  margin-bottom: 0.5em;
}

.subtitle {
  font-size: 1.1rem;
  color: #3691b8;
  margin-bottom: 2em;
}

/* ========== Loader ========== */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-light);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s;
}

.spinner {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 5px solid #d1f6f6;
  border-top: 5px solid #35b8d5;
  border-right: 5px solid #2ee0b4;
  background: transparent;
  animation: spin 1.2s linear infinite;
  margin-bottom: 1.3rem;
}

#loader span {
  color: #36b5bb;
  font-size: 1.15rem;
  letter-spacing: 1px;
  opacity: 0.85;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========== Cookies popup ========== */
.no-cookies-popup {
  position: fixed;
  left: 50%;
  bottom: 38px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.98);
  border-radius: 1.2em;
  box-shadow: 0 4px 18px 0 rgba(30, 160, 170, 0.12);
  color: #226585;
  padding: 0.7em 1.6em;
  display: flex;
  align-items: center;
  gap: 1.2em;
  z-index: 12001;
  font-size: 1.05em;
  border: 1px solid #e8f8ff;
}

.no-cookies-popup button {
  background: var(--main-gradient, #52bbdf);
  border: none;
  border-radius: 0.9em;
  color: #fff;
  font-weight: 500;
  font-size: 1em;
  padding: 0.37em 1.3em;
  cursor: pointer;
  box-shadow: 0 2px 10px 0 #e2fffd46;
  transition: background 0.18s, transform 0.12s;
}

.no-cookies-popup button:hover,
.no-cookies-popup button:focus {
  background: var(--accent-gradient, #47e0b4);
  transform: translateY(-1px) scale(1.04);
}

/* ========== Error страница ========== */
.error-container {
  max-width: 600px;
  margin: 2rem auto;
  padding: 2rem;
  background: #fff;
  border-radius: 1.35em;
  box-shadow: 0 2px 16px 0 rgba(55, 185, 195, 0.09);
  border: 1px solid #d5f9f6;
  text-align: center;
}

.error-icon {
  font-size: 4rem;
  color: #e74c3c;
  margin-bottom: 1rem;
}

.error-message {
  color: #217895;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.error-details {
  color: #7a9ba8;
  margin-bottom: 2rem;
}

.home-link {
  display: inline-block;
  background: var(--main-gradient);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 1.8em;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.home-link:hover {
  background: var(--accent-gradient);
  transform: translateY(-2px);
}

/* ========== Адаптация для мобильных ========== */
@media (max-width: 1100px) {
  .header {
    max-width: 98vw;
  }
}

@media (max-width: 900px) {
  .header {
    max-width: 100vw;
  }

  main {
    padding-top: 1.7rem;
  }
}

@media (max-width: 650px) {
  .header {
    max-width: 100vw;
    padding: 0.6rem 0.2rem;
  }

  main {
    padding-left: 0.4rem;
    padding-right: 0.4rem;
    padding-top: 1.1rem;
    padding-bottom: 0.7rem;
  }

  .logo-big {
    width: 56px;
    margin-bottom: 1em;
    margin-top: 0.5em;
  }

  .menu a {
    font-size: 1em;
    --menu-button-padding-h: 1em;
    --menu-button-padding-v: 0.55em;
  }

  .menu {
    gap: 0.75rem;
  }

  .social-links {
    gap: 1.1rem;
  }

  .social-label {
    font-size: 0.90em;
  }

  .social {
    width: 90px;
    min-width: 70px;
  }

  .services-cards {
    gap: 1.25rem;
    padding-bottom: 0.5rem;
  }

  .service-card {
    padding: 1.15em 0.7em 1.05em 0.7em;
  }

  .service-card-header h3 {
    font-size: 1.09em;
  }

  .service-links {
    gap: 0.5em;
  }

  .no-cookies-popup {
    font-size: 0.95em;
    padding: 0.7em 0.7em;
    gap: 0.8em;
    bottom: 16px;
  }

  .no-cookies-popup button {
    padding: 0.33em 0.8em;
  }
}