/* style.css – Полный адаптивный glassmorphism дизайн */
:root {
  --glass-bg-light: rgba(255, 255, 255, 0.25);
  --glass-bg-dark: rgba(20, 20, 30, 0.55);
  --glass-border-light: rgba(255, 255, 255, 0.3);
  --glass-border-dark: rgba(255, 255, 255, 0.08);
  --text-light: #111;
  --text-dark: #eee;
  --bg-gradient-light: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --bg-gradient-dark: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  --tool-bg-light: rgba(255, 255, 255, 0.35);
  --tool-bg-dark: rgba(10, 10, 20, 0.6);
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --radius: 20px;
  --shadow-light: 0 8px 40px rgba(0,0,0,0.08);
  --shadow-dark: 0 8px 40px rgba(0,0,0,0.5);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg-gradient-light);
  color: var(--text-light);
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(108,99,255,0.12) 0%, transparent 50%);
  pointer-events: none;
  transition: opacity var(--transition);
}

body.dark {
  background: var(--bg-gradient-dark);
  color: var(--text-dark);
}
body.dark::before {
  opacity: 0.3;
}

/* Glass-элементы */
.glass {
  background: var(--glass-bg-light);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--glass-border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  transition: background var(--transition), border var(--transition), box-shadow var(--transition);
}
body.dark .glass {
  background: var(--glass-bg-dark);
  border-color: var(--glass-border-dark);
  box-shadow: var(--shadow-dark);
}

/* Контейнер */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Шапка */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  gap: 12px;
}
.logo-container {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-link {
  display: contents;   /* не ломает flex */
}
.logo-dark, .logo-light {
  display: none;
  height: 36px;
  width: auto;
}
body:not(.dark) .logo-light { display: block; }
body.dark .logo-dark { display: block; }

.controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.theme-switch {
  display: flex;
  background: var(--glass-bg-light);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 30px;
  padding: 4px;
  border: 1px solid var(--glass-border-light);
  transition: all var(--transition);
}
body.dark .theme-switch {
  background: var(--glass-bg-dark);
  border-color: var(--glass-border-dark);
}
.theme-btn {
  border: none;
  background: transparent;
  padding: 8px 14px;
  border-radius: 30px;
  cursor: pointer;
  font-size: 0.95rem;
  color: inherit;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.theme-btn svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}
body:not(.dark) .theme-btn svg { color: #000; }
body.dark .theme-btn svg { color: #fff; }
.theme-btn.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px rgba(108,99,255,0.4);
}
.theme-btn.active svg {
  color: white;
}
.theme-btn:hover:not(.active) {
  background: rgba(108,99,255,0.15);
}

.lang-switch a {
  display: inline-block;
  width: 32px;
  height: 24px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transition: transform 0.2s;
}
.lang-switch a:hover {
  transform: scale(1.1);
}
.lang-switch svg {
  width: 100%;
  height: 100%;
}

/* Навигация по инструментам */
.tools-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
  padding: 16px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border-light);
  transition: all var(--transition);
}
body.dark .tools-nav {
  background: var(--glass-bg-dark);
  border-color: var(--glass-border-dark);
}
.tools-nav a {
  text-decoration: none;
  color: inherit;
  padding: 8px 16px;
  border-radius: 30px;
  background: rgba(108,99,255,0.1);
  transition: all var(--transition);
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
}
.tools-nav a:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
}

/* Сетка инструментов */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin: 32px 0;
}
.tool-card {
  padding: 20px;
  background: var(--tool-bg-light);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border-light);
  box-shadow: var(--shadow-light);
  transition: all var(--transition);
}
body.dark .tool-card {
  background: var(--tool-bg-dark);
  border-color: var(--glass-border-dark);
  box-shadow: var(--shadow-dark);
}
.tool-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}
.tool-card p {
  opacity: 0.8;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.tool-card button, .tool-card input, .tool-card select, .tool-card textarea {
  font-family: inherit;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: all var(--transition);
  margin-bottom: 8px;
  width: 100%;
  box-sizing: border-box;
}
body.dark .tool-card button,
body.dark .tool-card input,
body.dark .tool-card select,
body.dark .tool-card textarea {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
}
.tool-card button {
  cursor: pointer;
  background: var(--accent);
  color: white;
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(108,99,255,0.3);
  width: auto;
  display: inline-block;
}
.tool-card button:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(108,99,255,0.4);
}
.tool-card .result {
  margin-top: 12px;
  font-weight: 600;
  font-size: 1.1rem;
}

/* Адаптив */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .tools-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
  }
}

/* Футер */
.footer {
  text-align: center;
  padding: 32px 0;
  opacity: 0.7;
  font-size: 0.85rem;
  margin-top: 40px;
  border-top: 1px solid var(--glass-border-light);
}
body.dark .footer {
  border-top-color: var(--glass-border-dark);
}

/* Страницы ошибок */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
}
.error-page h1 {
  font-size: 5rem;
  background: linear-gradient(45deg, #6c63ff, #ff6584);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.error-page a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

/* Кнопка "Поделиться" */
.share-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  border: none;
  box-shadow: 0 4px 16px rgba(108,99,255,0.5);
  cursor: pointer;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.share-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(108,99,255,0.7);
}
.share-btn svg {
  width: 24px;
  height: 24px;
  fill: white;
}

/* Панель с иконками */
.share-panel {
  position: fixed;
  bottom: 90px;
  right: 24px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--glass-border-light);
  border-radius: 20px;
  padding: 16px;
  display: none;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 360px;
  z-index: 999;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
  transition: opacity 0.3s ease;
}
body.dark .share-panel {
  background: var(--glass-bg-dark);
  border-color: var(--glass-border-dark);
}
.share-panel.visible {
  display: flex;
}
.share-panel a,
.share-panel button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255,255,255,0.15);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  color: inherit;
  text-decoration: none;
}
body.dark .share-panel a,
body.dark .share-panel button {
  background: rgba(255,255,255,0.1);
}
.share-panel a:hover,
.share-panel button:hover {
  background: var(--accent);
  transform: translateY(-3px);
}
.share-panel svg {
  width: 24px;
  height: 24px;
}
/* Для кнопки копирования */
.copy-tooltip {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  background: black;
  color: white;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}