@import url('https://v1.fontapi.ir/css/SFProDisplay');

* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    box-sizing: border-box;
    list-style: none;
    scroll-behavior: smooth;
    font-family: SF Pro Display, sans-serif;
}

:root {
    --text-color: rgba(255, 255, 255, 0.9);
    --text-other-color: rgba(255, 255, 255, 0.7);
    --text-desc: rgb(185, 185, 185, 0.9);
    --text-desc-on: rgb(185, 185, 185, 0.9);
}

body {
    background: #000;
    background-image: url(/img/Фон.svg);
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
    min-height: 100vh;
}

main {
    padding-bottom: 0;
    overflow-x: hidden;
}

.main-sect {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}

.form-container {
    align-items: center;
    position: relative;
    padding: 35px;
    border-radius: 35px;
    background: transparent;
    border: none;
    backdrop-filter: blur(37.5px);
    overflow: hidden;
    box-shadow: 4px 7px 13.5px rgb(0, 0, 0, 0.15);
}

.form-container::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 35px;
    padding: 1px;
    background: linear-gradient(149deg, #fff -30%, #fff -60%, rgba(255, 255, 255, 0.06) 20%, rgba(255, 255, 255, 0.06) 80%, #fff 130%, #fff 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.text {
    text-align: center;
    align-items: center;
    margin-bottom: 20px;
}

.text h2 {
    font-size: 40px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 10px;
}

.text p {
    font-size: 18px;
    color: var(--text-desc-on);
}

.input-group {
    margin-bottom: 15px;
}

.input-group input {
    padding: 20px 22px;
    width: 100%;
    background: transparent;
    border: none; outline: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.input-group input::placeholder {
    color: var(--text-desc);
    font-weight: 500;
}

.input-group label {
    color: var(--text-color);
    font-weight: 400;
}

.input-wrapper, .submit-btn {
    width: 400px;
    align-items: center;
    position: relative;
    border-radius: 30px;
    margin-top: 10px;
    background: rgb(20, 20, 20, 0.25);
    border: none;
    overflow: hidden;
    box-shadow: 4px 7px 13.5px rgb(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.45, 1.45, 0.49, 1.15);
}

.input-wrapper::before, .submit-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 30px;
    padding: 1px;
    background: linear-gradient(149deg, #fff -10%, #fff -60%, rgba(255, 255, 255, 0.06) 20%, rgba(255, 255, 255, 0.06) 80%, #fff 130%, #fff 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.45, 1.45, 0.49, 1.15);
}

.submit-btn {
    margin: 15px 0;
    width: 100%;
    padding: 16px;
    align-items: center;
    text-align: center;
    font-size: 18px;
    background: rgb(20, 20, 20, 0.50);
    color: var(--text-color);
    cursor: pointer;
    font-weight: 400;
}

.submit-btn:hover, .input-wrapper:hover {
    transform: scale(1.02);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
}

.checkbox-group input[type="checkbox"] {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
    outline: none;
}

.checkbox-group label {
    position: relative;
    color: var(--text-other-color);
    line-height: 1.5;
    cursor: pointer;
    padding-left: 35px;
    margin: 0;
    transition: all 0.3s ease;
    outline: none;
}

.checkbox-group label::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: rgba(20, 20, 20, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.45, 1.45, 0.49, 1.15);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 2px 4px rgba(0, 0, 0, 0.2);
}

.checkbox-group label::after {
    content: "";
    position: absolute;
    left: 7px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg) scale(0);
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transition: all 0.2s cubic-bezier(0.27, 1.09, 0.49, 1.06);
    opacity: 0;
}

.checkbox-group label:hover::before {
    background: rgba(30, 30, 30, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 4px 8px rgba(0, 0, 0, 0.25);
}

.checkbox-group input[type="checkbox"]:checked + label::before {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 3px 6px rgba(0, 0, 0, 0.3);
}

.checkbox-group input[type="checkbox"]:checked + label::after {
    transform: translateY(-60%) rotate(45deg) scale(1);
    opacity: 1;
}

.checkbox-group input[type="checkbox"]:checked + label::before {
    animation: checkboxPulse 0.3s ease;
}

@keyframes checkboxPulse {
    0% {
        transform: translateY(-50%) scale(1);
    }
    50% {
        transform: translateY(-50%) scale(1.1);
    }
    100% {
        transform: translateY(-50%) scale(1);
    }
}

.checkbox-group .link {
    color: var(--text-color);
    transition: all 0.3s ease;
}

.checkbox-group .link:hover {
    color: rgba(255, 255, 255, 1);
}

.account {
    text-align: center;
    color: var(--text-other-color);
}

.account a {
    color: var(--text-color);
    font-weight: 400;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.label-row label {
    margin: 0;
}

.label-row a {
    color: var(--text-color);
    cursor: pointer;
    font-weight: 400;
}

@keyframes form-element-appear {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-form > * {
    opacity: 0;
}

.animate-form.is-visible > * {
    animation: form-element-appear 0.5s cubic-bezier(0.45, 1.45, 0.49, 1.15) forwards;
}

.animate-form.is-visible .text {
    animation-delay: 0.1s;
}
.animate-form.is-visible .form .input-group:nth-of-type(1) {
    animation-delay: 0.2s;
}
.animate-form.is-visible .form .input-group:nth-of-type(2) {
    animation-delay: 0.3s;
}
.animate-form.is-visible .form .input-group:nth-of-type(3) {
    animation-delay: 0.4s;
}
.animate-form.is-visible .form .checkbox-group {
    animation-delay: 0.5s;
}
.animate-form.is-visible .form .submit-btn {
    animation-delay: 0.6s;
}
.animate-form.is-visible .account {
    animation-delay: 0.7s;
}

.error-message {
    color: #ff3333;
    font-size: 14px;
    margin: 10px 0;
    text-align: center;
}