/* Форма обратной связи volgagas.ru — адаптивная, без зависимостей */
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 Arial,Helvetica,sans-serif;color:#1d2733;background:#eef2f7}
.fb-top{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:12px 20px;background:#0d3b6e;color:#fff}
.fb-top a{color:#dfe9f5;text-decoration:none}.fb-top a:hover{color:#fff}
.fb-logo{font-weight:bold;font-size:18px;color:#fff!important;margin-right:auto}
.fb-wrap{max-width:820px;margin:24px auto;padding:24px;background:#fff;border-radius:10px;box-shadow:0 2px 12px rgba(0,0,0,.08)}
h1{margin:0 0 6px;color:#0d3b6e}.fb-lead{margin:0 0 18px;color:#556}
fieldset{border:1px solid #d7dee8;border-radius:8px;padding:14px 16px;margin:0 0 16px}
legend{font-weight:bold;color:#0d3b6e;padding:0 6px}
.req{color:#d33}.opt{color:#889;font-weight:normal;font-size:12px}
label{display:block;font-size:13px;color:#445}
input,select,textarea{width:100%;margin-top:4px;padding:10px 12px;font:inherit;border:1px solid #c3ccd8;border-radius:6px;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:#1f6fc5;box-shadow:0 0 0 3px rgba(31,111,197,.15)}
.invalid{border-color:#d33!important}
textarea{resize:vertical}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;margin-bottom:12px}.wide{grid-column:1/-1}
.fb-prod{display:flex;gap:8px}.fb-prod select{flex:1;margin:0}
.fb-chips{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.fb-chips li{background:#e6f0fb;border:1px solid #b9d2ef;border-radius:16px;padding:4px 6px 4px 12px;font-size:13px}
.fb-chips button{border:0;background:none;color:#d33;font-size:16px;cursor:pointer;padding:0 4px}
.fb-attach{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px}
.fb-attach input[type=file]{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.btn-file{display:inline-block;margin:0;padding:10px 16px;background:#e6f0fb;color:#0d3b6e;border-radius:6px;font-weight:bold;cursor:pointer;border:1px solid #b9d2ef}
.btn-file:hover{background:#d5e6f8}
.attach-name{font-size:13px;color:#667}.attach-name.warn{color:#c0392b;font-weight:bold}
.fb-files{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-direction:column;gap:6px}
.fb-files li{display:flex;align-items:center;gap:10px;background:#f4f8fd;border:1px solid #b9d2ef;border-radius:6px;padding:8px 8px 8px 12px;font-size:14px}
.fb-files .fn{flex:1;word-break:break-all;color:#0d3b6e;font-weight:bold}.fb-files .fs{color:#667;font-size:13px;white-space:nowrap}
.fb-files button{border:0;background:none;color:#d33;font-size:20px;line-height:1;cursor:pointer;padding:0 6px}
.agree{display:flex;gap:8px;align-items:flex-start;font-size:14px;margin:6px 0 14px}.agree input{width:auto;margin-top:3px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.btn{border:0;border-radius:6px;padding:11px 22px;font:inherit;font-weight:bold;cursor:pointer;background:#1f6fc5;color:#fff;width:100%;font-size:16px}
.btn:hover{background:#185ba3}.btn:disabled{opacity:.6;cursor:wait}
.err{color:#d33;font-size:13px;min-height:0}
.fb-msg{margin:0 0 12px;padding:0;border-radius:6px}.fb-msg.ok{padding:12px;background:#e5f6ea;color:#17602c}.fb-msg.bad{padding:14px 16px;background:#fde8e8;color:#a32020;border:2px solid #e57373;font-weight:bold;font-size:15px}
.fb-done{text-align:center;padding:36px 20px;border:2px solid #4caf50;background:#e8f7ec;border-radius:10px;animation:fbIn .4s ease}
.fb-done[hidden],form[hidden]{display:none}
.fb-done-ico{width:72px;height:72px;margin:0 auto 12px;border-radius:50%;background:#2e9d4a;color:#fff;font-size:40px;line-height:72px}
.fb-wrap .fb-done h2{margin:0 0 8px!important;padding:0!important;background:none!important;color:#17602c!important;font-size:26px!important;border:0!important;box-shadow:none!important;text-align:center!important}.fb-wrap .fb-done h2:before,.fb-wrap .fb-done h2:after{display:none!important}.fb-done p{margin:0 0 14px;font-size:16px;color:#1d4d2a}
.fb-done-files{list-style:none;padding:0;margin:0 auto 18px;max-width:480px;text-align:left}
.fb-done-files li{background:#fff;border:1px solid #b7dfc1;border-radius:6px;padding:6px 10px;margin-top:6px;font-size:14px;word-break:break-all}
.fb-done-files li.cap{background:none;border:0;padding:0;color:#556;font-size:13px}
.btn-light{background:#fff;color:#1f6fc5;border:1px solid #1f6fc5;width:auto}.btn-light:hover{background:#eef5fd}
@keyframes fbIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
@media (max-width:640px){.fb-wrap{margin:0;border-radius:0;padding:16px}.grid{grid-template-columns:1fr}input,select,textarea{font-size:16px}}