:root {

    --color-bg-primary: #090E11;
    --color-bg-secondary: rgba(127, 148, 169, 0.07);
    --color-bg-input: rgba(127, 148, 169, 0.12);
    --color-bg-input-error: rgba(245, 120, 120, 0.12);
    --color-bg-button: rgba(127, 148, 169, 0.07);
    --color-bg-button-active: #B1B4B5;
    --color-text-primary: #B1B4B5;
    --color-text-title: #EAECF4;
    --color-text-placeholder: #76808B;
    --color-text-button: #3E4854;
    --color-text-button-active: #090E11;
    --color-text-error: #FB8282;
    --color-text-checked: #E0E5E6;
    --color-border-input: rgba(127, 148, 169, 0.12);
    --color-border-input-active: #E0E5E6;
    --color-border-input-error: #F57878;
    --color-border-form: #1F262C;
    --color-border-checkbox: #76808B;

    --font-primary: 'Tektur', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    --font-size-title: 32px;
    --font-size-form-title: 24px;
    --font-size-label: 13px;
    --font-size-input: 14px;
    --font-size-link: 12px;
    --font-size-button: 14px;
    --font-size-register: 13px;
    --line-height-title: 1.3;
    --line-height-form-title: 1.3;
    --line-height-label: 1.538;
    --line-height-input: 1.429;
    --line-height-link: 1.3;
    --line-height-button: 1;
    --line-height-register: 1.21;

    --spacing-form-padding: 32px;
    --spacing-form-gap: 24px;
    --spacing-field-gap: 8px;
    --spacing-password-gap: 12px;
    --spacing-checkbox-gap: 8px;

    --radius-form: 28px;
    --radius-input: 12px;
    --radius-button: 6px;
    --radius-checkbox: 4px;

    --width-form: 408px;
    --height-input: auto;
    --input-padding: 13px 20px;
    --button-padding: 10px 12px;
    --checkbox-size: 16px;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.page__bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page__container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 142px;
    padding: 36px 20px;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

.page__title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: var(--font-size-title);
    line-height: var(--line-height-title);
    color: var(--color-text-primary);
    text-align: center;
}

.form {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-form);
    border-radius: var(--radius-form);
    padding: var(--spacing-form-padding);
    width: var(--width-form);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-form-gap);
}

.form__header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.form__title {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--font-size-form-title);
    line-height: var(--line-height-form-title);
    color: var(--color-text-title);
    text-align: center;
}

.form__description {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-placeholder);
    text-align: center;
    max-width: 100%;
    margin: 0;
}

.form__email-display {
    color: var(--color-text-checked);
    font-weight: 500;
}

.form__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-form-gap);
    align-items: stretch;
}

.form__field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-field-gap);
    width: 100%;
}

.form__label {
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: var(--font-size-label);
    line-height: var(--line-height-label);
    color: var(--color-text-primary);
}

.form__input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.form__input-wrapper .form__caret {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 20px;
    background: var(--color-text-checked);
    border-radius: 3px;
    pointer-events: none;
    animation: blink 1s infinite;
    z-index: 0;
}

.form__input {
    width: 100%;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--radius-input);
    padding: var(--input-padding);
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-input);
    line-height: var(--line-height-input);
    color: var(--color-text-checked);
    outline: none;
    transition: border-color 0.2s;
}

.form__input::placeholder {
    color: var(--color-text-placeholder);
}

.form__input:focus {
    border-color: var(--color-border-input-active);
}

.form__input--error {
    background: var(--color-bg-input-error);
    border-color: var(--color-border-input-error);
}

.form__input--password {
    padding-right: 48px;
}

.form__password-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-password-gap);
    width: 100%;
}

.form__password-toggle {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    z-index: 1;
    transition: opacity 0.2s;
}

.form__password-toggle:hover {
    opacity: 0.7;
}

.form__eye-icon {
    width: 20px;
    height: 20px;
    display: block;
    pointer-events: none;
}

.form__eye-icon--hidden {
    display: block;
}

.form__eye-icon--visible {
    display: none;
}

.form__forgot-link {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-placeholder);
    text-decoration: none;
    align-self: flex-start;
    transition: opacity 0.2s;
}

.form__forgot-link:hover {
    opacity: 0.8;
}

.form__error {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-error);
}

.form__error--hidden {
    display: none;
}

.form__success {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-checked);
    text-align: center;
}

.form__success--hidden {
    display: none;
}

.form__checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-checkbox-gap);
}

.form__checkbox-input {
    width: var(--checkbox-size);
    height: var(--checkbox-size);
    border: 1px solid var(--color-border-checkbox);
    border-radius: var(--radius-checkbox);
    background: transparent;
    cursor: pointer;
    appearance: none;
    position: relative;
    flex-shrink: 0;
}

.form__checkbox-input:checked {
    background: var(--color-text-checked);
    border-color: var(--color-text-checked);
}

.form__checkbox-input:checked::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 4px;
    height: 8px;
    border: solid var(--color-bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form__checkbox-label {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-placeholder);
    cursor: pointer;
}

.form__checkbox-input:checked + .form__checkbox-label {
    color: var(--color-text-checked);
}

.form__link {
    color: var(--color-text-placeholder);
    text-decoration: underline;
    transition: opacity 0.2s;
}

.form__link:hover {
    opacity: 0.8;
}

.form__checkbox-input:checked + .form__checkbox-label .form__link {
    color: var(--color-text-checked);
}

.form__submit {
    width: 100%;
    background: var(--color-bg-button);
    border: none;
    border-radius: var(--radius-button);
    padding: var(--button-padding);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--font-size-button);
    line-height: var(--line-height-button);
    color: var(--color-text-button);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    text-align: center;
}

.form__submit:hover {
    background: var(--color-bg-button-active);
    color: var(--color-text-button-active);
}

.form__submit:active {
    background: var(--color-bg-button-active);
    color: var(--color-text-button-active);
}

.form__register {
    font-family: var(--font-secondary);
    font-weight: 500;
    font-size: var(--font-size-register);
    line-height: var(--line-height-register);
    color: var(--color-text-placeholder);
    text-align: center;
}

.form__register-link {
    color: var(--color-text-placeholder);
    text-decoration: none;
    transition: opacity 0.2s;
}

.form__register-link:hover {
    opacity: 0.8;
}

.form__footer {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-form);
}

.form__button {
    flex: 1;
    padding: 12px 24px;
    border-radius: var(--radius-button);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: var(--font-size-button);
    line-height: var(--line-height-button);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    border: 1px solid var(--color-border-form);
}

.form__button--cancel {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border-form);
}

.form__button--cancel:hover {
    background: var(--color-bg-input);
    border-color: var(--color-border-input-active);
}

.form__button--submit {
    background: var(--color-bg-button);
    color: var(--color-text-button);
    border-color: var(--color-border-form);
}

.form__button--submit:hover {
    background: var(--color-bg-button-active);
    color: var(--color-text-button-active);
}

.form__input--disabled {
    background: var(--color-bg-input);
    opacity: 0.5;
    cursor: not-allowed;
}

.form__hint {
    font-family: var(--font-secondary);
    font-size: 12px;
    color: var(--color-text-placeholder);
    margin-top: 8px;
    font-style: italic;
}

.form__code-wrapper {
    display: flex;
    gap: 8px;
    justify-content: center;
    width: 100%;
}

.form__code-input {
    width: 48px;
    height: 48px;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--radius-input);
    padding: 0;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 20px;
    line-height: 1;
    color: var(--color-text-checked);
    text-align: center;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.form__code-input::placeholder {
    color: var(--color-text-placeholder);
    font-size: 14px;
}

.form__code-input:focus {
    border-color: var(--color-border-input-active);
    background: var(--color-bg-input);
}

.form__code-input.form__input--error {
    background: var(--color-bg-input-error);
    border-color: var(--color-border-input-error);
}

.form--error .form__code-input {
    background: var(--color-bg-input-error);
    border-color: var(--color-border-input-error);
}

.form__resend {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.form__resend-text {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-placeholder);
    margin: 0;
}

.form__resend-button {
    background: none;
    border: none;
    padding: 0;
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--font-size-link);
    line-height: var(--line-height-link);
    color: var(--color-text-placeholder);
    cursor: pointer;
    transition: opacity 0.2s, color 0.2s;
    text-decoration: underline;
}

.form__resend-button:hover:not(:disabled) {
    opacity: 0.8;
    color: var(--color-text-checked);
}

.form__resend-button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.form__resend-timer {
    display: inline-block;
}

.form__input--active {
    border-color: var(--color-border-input-active);
}

.form__input--active {
    position: relative;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

.form__submit--active {
    background: var(--color-bg-button-active);
    color: var(--color-text-button-active);
}

.form--error .form__input {
    background: var(--color-bg-input-error);
    border-color: var(--color-border-input-error);
}

.form--error .form__error {
    display: block;
}

.form--error .form__submit {
    background: var(--color-bg-secondary);
    color: var(--color-text-button);
}

.form--success .form__submit {
    background: var(--color-bg-button-active);
    color: var(--color-text-button-active);
}

@media (max-width: 480px) {
    :root {
        --width-form: 100%;
        --spacing-form-padding: 24px;
    }
    .page__container {
        gap: 60px;
        padding: 20px;
    }
}