/* 13. login.html */
/* Основные стили для страницы авторизации */
.login-wrapper {
    min-height: calc(100vh - 100px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 480px;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Заголовок */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 30px 30px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.login-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 1;
}

.login-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.login-subtitle {
    font-size: 16px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Форма */
.login-form {
    padding: 40px 30px;
}

/* Сетка для полей */
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    animation: slideIn 0.4s ease-out forwards;
    opacity: 0;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }

.form-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: #2d3748;
    font-size: 15px;
    margin-bottom: 5px;
}

.form-label i {
    color: #667eea;
    width: 20px;
    text-align: center;
}

.form-input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
    background: #f8fafc;
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #718096;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    font-size: 16px;
    transition: all 0.2s;
}

.password-toggle:hover {
    background: #f7fafc;
    color: #667eea;
}

/* Ошибки */
.global-error {
    background: #fee;
    color: #c53030;
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    border-left: 4px solid #c53030;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.field-error {
    color: #e53e3e;
    font-size: 14px;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.form-group.has-error .form-input {
    border-color: #e53e3e;
    background: #fff5f5;
}

/* Кнопка входа */
.login-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.login-btn:active {
    transform: translateY(0);
}

/* Ссылки под формой */
.form-links {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    gap: 15px;
    text-align: center;
}

.form-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 8px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.form-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.3s;
}

.form-link:hover::before {
    left: 100%;
}

.form-link:hover {
    background: #f7fafc;
    color: #5a67d8;
    transform: translateX(5px);
}

.link-divider {
    height: 1px;
    background: #e2e8f0;
    margin: 10px 0;
}

/* Вспомогательные элементы */
.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #4a5568;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.forgot-password:hover {
    color: #5a67d8;
    text-decoration: underline;
}

/* Адаптивность */
@media (max-width: 768px) {
    .login-container {
        max-width: 400px;
    }
    
    .login-form {
        padding: 30px 20px;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-title {
        font-size: 28px;
    }
    
    /* === МИНИМАЛЬНЫЕ ИЗМЕНЕНИЯ ДЛЯ ВИДИМОСТИ PLACEHOLDER === */
    .form-input {
        font-size: 16px !important; /* Предотвращает масштабирование на iOS */
        padding: 14px 16px;
    }
    
    .input-wrapper {
        width: 100%;
    }
    
    /* Улучшаем видимость placeholder */
    .form-input::placeholder {
        color: #a0aec0;
        font-size: 14px;
        opacity: 1; /* Фикс для Firefox */
    }
    
    /* Для WebKit браузеров (Chrome, Safari) */
    .form-input::-webkit-input-placeholder {
        color: #a0aec0;
        font-size: 14px;
    }
    
    /* Для Firefox */
    .form-input::-moz-placeholder {
        color: #a0aec0;
        font-size: 14px;
        opacity: 1;
    }
    
    /* Для IE/Edge */
    .form-input:-ms-input-placeholder {
        color: #a0aec0;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .login-wrapper {
        padding: 20px 15px;
    }
    
    .login-form {
        padding: 25px 20px;
    }
    
    .login-header {
        padding: 25px 20px;
    }
    
    .form-links {
        flex-direction: column;
        gap: 12px;
    }
    
    .remember-forgot {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    /* === МИНИМАЛЬНЫЕ ИЗМЕНЕНИЯ ДЛЯ ВИДИМОСТИ PLACEHOLDER НА МАЛЕНЬКИХ ЭКРАНАХ === */
    .form-input {
        font-size: 15px !important;
        padding: 12px 14px;
    }
    
    .form-input::placeholder {
        font-size: 13px;
    }
    
    .form-input::-webkit-input-placeholder {
        font-size: 13px;
    }
    
    .form-input::-moz-placeholder {
        font-size: 13px;
    }
}

/* Социальные кнопки (дополнительно) */
.social-login {
    margin-top: 25px;
    text-align: center;
}

.social-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #718096;
    font-size: 14px;
}

.social-divider::before,
.social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.social-divider span {
    padding: 0 15px;
}

.social-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.social-btn {
    flex: 1;
    padding: 14px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background: white;
    color: #4a5568;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.social-btn:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

/* Дополнительная информация */
.form-footer {
    text-align: center;
    margin-top: 30px;
    color: #718096;
    font-size: 14px;
}