/* Кастомная кнопка */
.btn-bd-primary {
    --bd-violet-bg: #712cf9;
    --bd-violet-rgb: 112.520718, 44.062154, 249.437846;
    --bs-btn-font-weight: 600;
    --bs-btn-color: var(--bs-white);
    --bs-btn-bg: var(--bd-violet-bg);
    --bs-btn-border-color: var(--bd-violet-bg);
    --bs-btn-hover-color: var(--bs-white);
    --bs-btn-hover-bg: #6528e0;
    --bs-btn-hover-border-color: #6528e0;
    --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb);
    --bs-btn-active-color: var(--bs-btn-hover-color);
    --bs-btn-active-bg: #5a23c8;
    --bs-btn-active-border-color: #5a23c8;
}

/* Стили формы входа с glassmorphism */
.form-signin-container {
    display: grid;
    place-items: center;
    min-height: 100vh;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-signin {
    max-width: 380px;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] .form-signin {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-signin .form-floating:focus-within {
    z-index: 2;
}

.form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    padding-right: 2.5rem;
}

/* Кнопка показать/скрыть пароль */
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.password-toggle:hover {
    opacity: 1;
}

/* Индикатор Caps Lock */
.caps-lock-warning {
    position: absolute;
    right: 2.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #ffc107;
    font-size: 0.875rem;
    display: none;
    z-index: 10;
}

.caps-lock-warning.show {
    display: block;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Стили для чекбокса "Запомнить меня" */
.form-check-input:checked {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

/* Улучшенная кнопка входа */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Индикатор загрузки */
.btn-primary .spinner-border {
    width: 1.2rem;
    height: 1.2rem;
    border-width: 0.2em;
    margin-right: 0.5rem;
}

#btnText,
#btnSpinner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Улучшенные поля ввода */
.form-control {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.form-control:focus {
    background: rgba(255, 255, 255, 1);
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    transform: translateY(-2px);
}

[data-bs-theme="dark"] .form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

[data-bs-theme="dark"] .form-control:focus {
    background: rgba(255, 255, 255, 0.15);
}

/* Сообщения об ошибках */
.invalid-feedback {
    display: none;
    font-size: 0.875rem;
    color: #dc3545;
    margin-top: 0.25rem;
}

.invalid-feedback.show {
    display: block;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.form-control.is-invalid {
    border-color: #dc3545;
    animation: shake 0.5s;
}