:root {
    --brand: #399462;
    --brand-dark: #2e7b4a;
    --text: #0b0b0b;
    --muted: #555;
    --bg: #9602aa10;           /* минималистичный фон с оттенком бренда */
    --card: #ffffff;
    --input-border: #2b8a9a;
    --shadow: 0 6px 20px rgba(0,0,0,.05);
    --radius: 12px;
  }
  
  * { box-sizing: border-box; }
  
  html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
    color: var(--text);
    background: radial-gradient(circle at 20% -10%, rgba(57,146,98,0.15), transparent 40%),
                radial-gradient(circle at 80% 0%, rgba(62, 176, 176, 0.12), transparent 40%),
                var(--bg);
  }
  
  main {
    flex: 1;
  }

  .page {
    width: 100%;
    max-width: 640px;
    margin: 40px auto;
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    border: 1px solid #e5e5e5;
  }
  
  .auth-box {
    display: inline-block;
    text-align: left;
    border: 1px solid var(--brand);
    border-radius: 12px;
    padding: 20px;
    width: 100%;
    max-width: 520px;
    background: var(--card);
  }
  
  .auth-title {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--brand-dark);
    margin-bottom: 12px;
    letter-spacing: .3px;
    text-transform: uppercase;
  }
  
  .auth-form { width: 100%; }
  
  .row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 8px 0;
    font-size: 14px;
    color: #333;
  }
  
  .row label {
    width: 110px;
    font-weight: 600;
    color: #333;
    text-align: right;
    padding-right: 6px;
  }
  
  .row input[type="text"],
  .row input[type="password"],
  .row input[type="email"] {
    flex: 1;
    min-width: 0;
    height: 38px;
    padding: 6px 10px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: #fff;
    transition: border-color .2s;
  }
  
  .row input:focus {
    border-color: var(--brand);
    outline: 2px solid rgba(57, 146, 98, 0.25);
    outline-offset: 1px;
  }
  
  .check {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 6px;
    padding-left: 110px;
    text-align: left;
  }
  
  .footer-note {
    margin-top: 14px;
    font-size: 14px;
    color: var(--muted);
    line-height: 1.4;
    text-align: center;
  }
  
  .actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 14px;
    padding: 0 6px;
    flex-wrap: wrap;
  }
  
  .actions a, .actions button {
    text-decoration: none;
    color: #0b0b0b;
    background-color: #e9f0ef;
    border-radius: 10px;
    border: 1px solid var(--brand);
    padding: 8px 14px;
    cursor: pointer;
    font-family: inherit;
    margin: 5px;
  }
  
  .actions button {
    background: var(--brand);
    color: #fff;
    border: none;
  }
  
  .secondary-link {
    cursor: pointer;
    color: var(--brand-dark);
    background: transparent;
    border: 0;
  }




  .fa-times { color: red; }
.fa-check { color: green; }

#valid_first_name, #invalid_first_name,
#valid_last_name, #invalid_last_name,
#valid_user_pic, #invalid_user_pic,
#valid_email, #invalid_email,
#valid_vk_url, #invalid_vk_url,
#valid_username, #invalid_username,
#valid_password, #invalid_password,
#valid_confirm, #invalid_confirm {
  display: none;
}

/* Показываем зелёную галочку */
#first_name:valid ~ #valid_first_name,
#last_name:valid ~ #valid_last_name,
#user_pic:valid ~ #valid_user_pic,
#email:valid ~ #valid_email,
#vk_url:valid ~ #valid_vk_url,
#username:valid ~ #valid_username,
#password:valid ~ #valid_password,
#confirm:valid ~ #valid_confirm {
  display: inline-block;
}

/* Показываем красный крест */
#first_name:invalid ~ #invalid_first_name,
#last_name:invalid ~ #invalid_last_name,
#user_pic:invalid ~ #invalid_user_pic,
#email:invalid ~ #invalid_email,
#vk_url:invalid ~ #invalid_vk_url,
#username:invalid ~ #invalid_username,
#password:invalid ~ #invalid_password,
#confirm:invalid ~ #invalid_confirm {
  display: inline-block;
}

/* Шапка */
.site-header {
  background: linear-gradient(90deg, var(--brand) 0%, var(--accent) 100%);
  padding: 14px 0;
  color: #fff;
}

.site-header .container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header .logo a {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  text-decoration: none;
}

.main-nav a {
  margin: 0 12px;
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  transition: color .2s;
}

.main-nav a:hover {
  color: #ffeb3b;
}

/* Подвал */
.site-footer {
  background: var(--brand-dark);
  color: #fff;
  padding: 20px 0;
  text-align: center;
  margin-top: 40px;
}

.site-footer .container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.site-footer a {
  color: #fff;
  text-decoration: underline;
}

.site-footer .socials {
  margin-top: 8px;
}