:root {
    --bg-1: hsl(272, 35%, 11%);
    --bg-2: #261a39;
    --primary: #ff6f61;
    --primary-2: #ffd54a;
    --ok: #18d27d;
    --warn: #ffd166;
    --text: #f4f3fa;
    --muted: #b2abc4;
    --ring: #ff6f6155;
    --error: #ff5c7c;
    --shadow: 0 20px 40px -12px rgba(0, 0, 0, .55);
    --radius: 18px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial;
    color: var(--text);
    background: 
      radial-gradient(1000px 600px at 10% -10%, #ff6f6130 0%, transparent 60%),
      radial-gradient(800px 600px at 110% 20%, #ffd54a22 0%, transparent 55%),
      linear-gradient(120deg, var(--bg-1), var(--bg-2));
    min-height: 100%;
}

/* ссылки */
a {
    color: var(--primary);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

/* макет */
.wrap {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
    min-height: 100vh;
    width: min(1180px, 100% - 40px);
    margin: 0 auto;
    padding: 36px 20px 28px;
}

/* блок с логотипом */
header.brand {
    display: flex;
    gap: 18px;
    align-items: center;
    padding: 12px 8px;
    margin-bottom: 8px;
}

.logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    flex: 0 0 auto;
    background: conic-gradient(from 190deg, var(--primary), var(--primary-2));
    box-shadow: 0 10px 24px -8px rgba(0,0,0,.7), inset 0 0 0 6px #ffffff0f;
    display: grid;
    place-items: center;
    overflow: hidden;
}
.logo svg {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 2px 6px #00000077);
}

.brand h1 {
    font-size: 1.5rem;
    margin: 0;
}
.brand .sub {
    color: var(--muted);
    font-size: .95rem;
    margin-top: 4px;
}

/* панели */
.pane {
    background: linear-gradient(180deg, #1f1632cc, #0c0f20cc);
    border: 1px solid #ffffff12;
    backdrop-filter: blur(16px);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

/* преимущества / преимущества сервиса */
.reasons {
    margin-top: 18px;
    display: grid;
    gap: 16px;
}
.reason {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 14px;
    align-items: start;
}
.reason .ico {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 1.4rem;
    display: grid;
    place-items: center;
    background: #2b203f;
    border: 1px solid #ffffff20;
}
.reason h3 {
    margin: 0;
    font-size: 1.05rem;
}
.reason p {
    margin: 4px 0 0;
    color: var(--muted);
    line-height: 1.5;
}

/* табы */
.tabs {
    display: flex;
    gap: 10px;
    background: #0a0d1f88;
    padding: 6px;
    border-radius: 999px;
    width: max-content;
    border: 1px solid #ffffff12;
}
.tabs input {
    display: none;
}
.tabs label {
    padding: 10px 16px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    user-select: none;
    color: var(--muted);
}
.tabs input:checked + label {
    background: linear-gradient(180deg, #ff6f61, #d44c43);
    color: white;
    box-shadow: inset 0 1px 0 #ffffff33;
}

/* карточка входа */
.card {
    margin-top: 18px;
}
.view {
    display: none;
}
#tab-login:checked ~ .card #login,
#tab-reg:checked ~ .card #register {
    display: block;
}

form {
    display: grid;
    gap: 14px;
}
.remember-row {
    margin: 0;
}
.row {
    display: grid;
    gap: 8px;
}
label {
    font-size: .9rem;
    color: #c9cce0;
}
input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid #ffffff18;
    outline: none;
    background: #0b0f29;
    color: var(--text);
}
input::placeholder {
    color: #95a0c3aa;
}
input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--ring);
}

.remember-row {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: #171c3f;
    border: 1px solid #ffffff18;
    width: fit-content;
    cursor: pointer;
    font-size: .9rem;
    color: #c9cce0;
    margin: 0;
}
.remember-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border-radius: 6px;
    border: 1px solid #ffffff30;
    appearance: none;
    -webkit-appearance: none;
    background: #0b0f29;
    display: inline-block;
    position: relative;
}
.remember-row input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}
.remember-row input[type="checkbox"]:checked::after {
    content: "✓";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 0.9rem;
    color: #fff;
}

.row.inline {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.check {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* кнопки */
.btn {
    border: 0;
    border-radius: 12px;
    padding: 14px 16px;
    font-weight: 700;
    background: linear-gradient(180deg, var(--primary), #d44c43);
    color: white;
    cursor: pointer;
    box-shadow: 0 16px 30px -12px rgba(255, 111, 97, .6);
}
.btn:hover {
    filter: brightness(1.08);
}
.btn:active {
    transform: translateY(1px);
}

.ghost {
    padding: 12px 14px;
    border-radius: 12px;
    background: #171c3f;
    border: 1px solid #ffffff18;
    font-weight: 600;
    color: var(--text);
    text-align: center;
}

/* мета */
.meta {
    color: var(--muted);
    font-size: .9rem;
}
.divider {
    display: flex;
    align-items: center;
    gap: 12px;
}
.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, #ffffff00, #ffffff18, #ffffff00);
}

/* chips */
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}
.chip {
    padding: 8px 12px;
    border-radius: 999px;
    background: #2c2143;
    border: 1px solid #ffffff14;
    font-size: .85rem;
    color: #ddd;
}

/* восстановление пароля */
#forgot {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 50;
}
#forgot:target {
    display: block;
}
.overlay {
    position: absolute;
    inset: 0;
    background: #030614cc;
    backdrop-filter: blur(4px);
}
.sheet {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(520px, 90%);
    background: linear-gradient(180deg, #1f1635, #0e1230);
    border: 1px solid #ffffff1a;
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow);
}

/* адаптив */
@media (max-width: 980px) {
  .wrap {
    grid-template-columns: 1fr;
  }
  .auth {
    order: 2;
  }
}