@font-face {
    font-family: 'JetBrains Mono';
    src: url('https://cdn.jsdelivr.net/gh/JetBrains/JetBrainsMono/web/woff2/JetBrainsMono-Bold.woff2') format('woff2'),
      url('https://cdn.jsdelivr.net/gh/JetBrains/JetBrainsMono/web/woff/JetBrainsMono-Bold.woff') format('woff');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
  }

  @font-face {
    font-family: 'JetBrains Mono Italic';
    src: url('https://cdn.jsdelivr.net/gh/JetBrains/JetBrainsMono/web/woff2/JetBrainsMono-Bold-Italic.woff2') format('woff2'),
      url('https://cdn.jsdelivr.net/gh/JetBrains/JetBrainsMono/web/woff/JetBrainsMono-Bold-Italic.woff') format('woff');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
  }

/* Цветовые переменные */
:root {
  --color-bg: #ffffff;
  --color-text-btna: #000000;
  --color-text: #000000;
  --color-nav-btn: #a8a8a8;
  --color-nav-btn-active: #000000;
  --color-nav-btn-hover: #3d3d3d;
  --color-header: rgba(255,255,255,0.9);
}
body[data-theme='dark'] {
  --color-bg: #202020;
  --color-text-btna: #000000;
  --color-text: #ffffff;
  --color-nav-btn: #a8a8a8;
  --color-nav-btn-active: #000000;
  --color-nav-btn-hover: #3d3d3d;
  --color-header: #202020;
}
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, 'JetBrains Mono', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  transition: background-color 0.4s cubic-bezier(.4,0,.2,1), color 0.4s cubic-bezier(.4,0,.2,1), opacity 0.4s cubic-bezier(.4,0,.2,1);
}

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

.container-header {
    max-width: 90%;
    margin: 0 auto;
    padding: 0 16px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Заголовок */
.header {
    background-color: var(--color-header);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #2f3336;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: background-color 0.4s cubic-bezier(.4,0,.2,1), color 0.4s cubic-bezier(.4,0,.2,1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
}

.logo {
    font-family: 'JetBrains Mono Italic';
    font-size: 24px;
    font-weight: normal;
    color: var(--color-text);
}

.nav {
    display: flex;
    gap: 16px;
}

.nav-btn {
    background: var(--color-nav-btn);
    color: var(--color-text--btna);
    border: none;
    padding: 13px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.4s cubic-bezier(.4,0,.2,1), color 0.4s cubic-bezier(.4,0,.2,1);
    font-size: 15px;
}

.nav-btn:hover {
    background-color: var(--color-nav-btn-hover);
    color: var(--color-nav-btn-active);
}

.nav-btn.active {
    background-color: var(--color-nav-btn-active);
    color: #fff;
}

/* Основной контент */
.main {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

.screen {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Экран авторизации */
.auth-container {
    max-width: 400px;
    margin: 60px auto;
    text-align: center;
}

.auth-container h2 {
    font-size: 32px;
    margin-bottom: 8px;
    color: #ffffff;
}

.auth-container p {
    color: #9ca3af;
    margin-bottom: 40px;
}

.auth-form {
    background-color: #25282f;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid #2f3336;
}

.auth-form h3 {
    font-size: 24px;
    margin-bottom: 24px;
    color: #ffffff;
}

.auth-form input {
    width: 100%;
    padding: 16px;
    margin-bottom: 16px;
    background-color: #191b22;
    border: 1px solid #2f3336;
    border-radius: 8px;
    color: #ffffff;
    font-size: 16px;
    transition: border-color 0.2s ease;
}

.auth-form input:focus {
    outline: none;
    border-color: #6364ff;
}

.auth-form button {
    width: 100%;
    padding: 16px;
    background-color: #6364ff;
    color: #ffffff;
    border: none;
    border-radius: 24px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
    margin-bottom: 16px;
}

.auth-form button:hover {
    background-color: #525252;
}

.auth-form a {
    color: #616161;
    text-decoration: none;
}

.auth-form a:hover {
    text-decoration: underline;
}

/* Профиль */
.profile-header {
    background-color: #303030;
    border: 1px solid #333333;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 20px;
    text-align: center;
}

.profile-header h2 {
    font-size: 24px;
    margin-bottom: 8px;
    color: #ffffff;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }
    
    .auth-container {
        margin: 20px auto;
    }
    
    .auth-form {
        padding: 24px;
    }
    
    .nav {
        gap: 8px;
    }
    
    .nav-btn {
        padding: 6px 12px;
        font-size: 14px;
    }
}

@media (max-width: 600px) {
  .container, .container-header {
    max-width: 100%;
    padding: 0 2vw;
  }
  .main {
    margin-top: 56px;
    min-height: calc(100vh - 56px);
  }
  .header {
    padding: 0 1vw;
  }
  .nav {
    gap: 2px;
  }
  .nav-btn, .btna {
    padding: 18px 18px;
    font-size: 22px;
    border-radius: 22px;
    min-width: 56px;
    min-height: 56px;
  }
  .logo {
    font-size: 28px;
  }
  .auth-container {
    margin: 10px auto;
    max-width: 100%;
  }
  .auth-form {
    padding: 22px;
    font-size: 22px;
  }
  .auth-form input {
    font-size: 22px;
    padding: 20px;
    height: 56px;
  }
  .auth-form button {
    font-size: 22px;
    padding: 20px;
    height: 56px;
  }
  .profile-header {
    padding: 22px;
    font-size: 22px;
  }
  h2, h3 {
    font-size: 2em !important;
  }
}
@media (max-width: 400px) {
  .nav-btn, .btna {
    font-size: 18px;
    padding: 14px 8px;
    min-width: 44px;
    min-height: 44px;
    border-radius: 16px;
  }
  .logo {
    font-size: 20px;
  }
  .auth-form {
    font-size: 18px;
    padding: 12px;
  }
  .auth-form input, .auth-form button {
    font-size: 18px;
    padding: 14px;
    height: 44px;
  }
  h2, h3 {
    font-size: 1.4em !important;
  }
}

.notifications {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1001;
}
.notification {
    background-color: #6d6d6d;
    color: var(--color-text);
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    animation: slideIn 0.3s ease;
    max-width: 300px;
}
.notification.error {
    background-color: #f4212e;
}
.notification.success {
    background-color: #00ba7c;
}
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}